./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-deagle/floating_read-20.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-deagle/floating_read-20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cd83ac16197366132446ebf4fbdedd8712860068d55cee6f01a283271b044e15 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:13:37,059 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:13:37,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:13:37,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:13:37,096 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:13:37,097 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:13:37,099 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:13:37,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:13:37,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:13:37,105 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:13:37,106 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:13:37,107 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:13:37,108 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:13:37,109 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:13:37,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:13:37,124 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:13:37,126 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:13:37,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:13:37,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:13:37,134 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:13:37,136 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:13:37,142 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:13:37,147 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:13:37,148 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:13:37,158 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:13:37,158 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:13:37,158 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:13:37,159 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:13:37,160 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:13:37,161 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:13:37,161 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:13:37,175 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:13:37,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:13:37,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:13:37,180 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:13:37,180 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:13:37,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:13:37,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:13:37,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:13:37,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:13:37,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:13:37,184 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 20:13:37,227 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:13:37,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:13:37,228 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:13:37,228 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:13:37,234 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:13:37,234 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:13:37,235 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:13:37,235 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:13:37,235 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:13:37,235 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:13:37,236 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:13:37,237 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:13:37,237 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:13:37,237 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:13:37,237 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:13:37,238 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:13:37,238 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:13:37,238 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:13:37,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:13:37,240 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 20:13:37,240 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:13:37,245 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 20:13:37,246 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:13:37,246 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:13:37,246 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:13:37,246 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:13:37,247 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 20:13:37,247 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:13:37,247 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:13:37,247 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:13:37,247 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:13:37,248 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:13:37,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:13:37,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:13:37,248 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:13:37,248 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:13:37,249 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:13:37,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:13:37,249 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:13:37,249 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:13:37,249 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:13:37,250 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cd83ac16197366132446ebf4fbdedd8712860068d55cee6f01a283271b044e15 [2021-11-25 20:13:37,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:13:37,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:13:37,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:13:37,537 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:13:37,537 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:13:37,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/pthread-deagle/floating_read-20.i [2021-11-25 20:13:37,615 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/data/83ed8d729/978afe3c976f4383b628955b48f131ab/FLAGa56ef8b26 [2021-11-25 20:13:38,151 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:13:38,152 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/sv-benchmarks/c/pthread-deagle/floating_read-20.i [2021-11-25 20:13:38,168 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/data/83ed8d729/978afe3c976f4383b628955b48f131ab/FLAGa56ef8b26 [2021-11-25 20:13:38,448 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/data/83ed8d729/978afe3c976f4383b628955b48f131ab [2021-11-25 20:13:38,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:13:38,451 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:13:38,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:13:38,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:13:38,456 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:13:38,456 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:13:38" (1/1) ... [2021-11-25 20:13:38,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fef0ee7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:13:38, skipping insertion in model container [2021-11-25 20:13:38,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:13:38" (1/1) ... [2021-11-25 20:13:38,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:13:38,518 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:13:38,789 WARN L1533 CHandler]: Possible shadowing of function thread [2021-11-25 20:13:38,797 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/sv-benchmarks/c/pthread-deagle/floating_read-20.i[31197,31210] [2021-11-25 20:13:38,810 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:13:38,818 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:13:38,882 WARN L1533 CHandler]: Possible shadowing of function thread [2021-11-25 20:13:38,889 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/sv-benchmarks/c/pthread-deagle/floating_read-20.i[31197,31210] [2021-11-25 20:13:38,896 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:13:38,940 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:13:38,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:13:38 WrapperNode [2021-11-25 20:13:38,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:13:38,942 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:13:38,942 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:13:38,942 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:13:38,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:13:38" (1/1) ... [2021-11-25 20:13:38,971 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:13:38" (1/1) ... [2021-11-25 20:13:38,990 INFO L137 Inliner]: procedures = 162, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2021-11-25 20:13:38,991 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:13:38,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:13:38,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:13:38,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:13:38,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:13:38" (1/1) ... [2021-11-25 20:13:38,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:13:38" (1/1) ... [2021-11-25 20:13:39,001 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:13:38" (1/1) ... [2021-11-25 20:13:39,001 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:13:38" (1/1) ... [2021-11-25 20:13:39,007 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:13:38" (1/1) ... [2021-11-25 20:13:39,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:13:38" (1/1) ... [2021-11-25 20:13:39,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:13:38" (1/1) ... [2021-11-25 20:13:39,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:13:39,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:13:39,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:13:39,017 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:13:39,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:13:38" (1/1) ... [2021-11-25 20:13:39,026 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:13:39,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:13:39,047 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:13:39,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:13:39,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:13:39,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:13:39,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-25 20:13:39,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:13:39,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:13:39,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:13:39,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:13:39,087 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-11-25 20:13:39,087 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-11-25 20:13:39,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-25 20:13:39,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:13:39,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:13:39,088 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-25 20:13:39,200 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:13:39,202 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:13:39,330 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:13:39,336 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:13:39,336 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-25 20:13:39,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:13:39 BoogieIcfgContainer [2021-11-25 20:13:39,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:13:39,340 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:13:39,340 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:13:39,344 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:13:39,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:13:38" (1/3) ... [2021-11-25 20:13:39,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d86222b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:13:39, skipping insertion in model container [2021-11-25 20:13:39,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:13:38" (2/3) ... [2021-11-25 20:13:39,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d86222b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:13:39, skipping insertion in model container [2021-11-25 20:13:39,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:13:39" (3/3) ... [2021-11-25 20:13:39,347 INFO L111 eAbstractionObserver]: Analyzing ICFG floating_read-20.i [2021-11-25 20:13:39,352 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-25 20:13:39,352 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:13:39,352 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 20:13:39,352 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-25 20:13:39,376 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:39,376 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:39,377 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:39,377 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:39,377 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:39,377 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:39,378 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:39,378 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:39,378 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:39,378 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:39,379 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:39,379 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:39,379 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:39,379 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:39,380 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:39,380 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:39,380 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:39,381 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:39,381 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:39,381 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:39,384 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:39,385 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:39,385 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:39,385 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:39,385 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:39,389 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-25 20:13:39,439 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:13:39,446 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:13:39,446 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 20:13:39,466 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-25 20:13:39,496 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 59 transitions, 126 flow [2021-11-25 20:13:39,506 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 59 transitions, 126 flow [2021-11-25 20:13:39,508 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 59 transitions, 126 flow [2021-11-25 20:13:39,582 INFO L129 PetriNetUnfolder]: 7/81 cut-off events. [2021-11-25 20:13:39,582 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-25 20:13:39,585 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 81 events. 7/81 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 104 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 42. Up to 4 conditions per place. [2021-11-25 20:13:39,589 INFO L116 LiptonReduction]: Number of co-enabled transitions 280 [2021-11-25 20:13:41,260 INFO L131 LiptonReduction]: Checked pairs total: 352 [2021-11-25 20:13:41,260 INFO L133 LiptonReduction]: Total number of compositions: 52 [2021-11-25 20:13:41,272 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 14 places, 12 transitions, 32 flow [2021-11-25 20:13:41,294 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 14 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:41,295 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:41,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-25 20:13:41,300 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:41,301 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-25 20:13:41,301 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:13:41,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:41,310 INFO L85 PathProgramCache]: Analyzing trace with hash 7338, now seen corresponding path program 1 times [2021-11-25 20:13:41,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:41,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951417569] [2021-11-25 20:13:41,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:41,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:41,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:41,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:41,470 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:13:41,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951417569] [2021-11-25 20:13:41,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951417569] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:13:41,471 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:13:41,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:13:41,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561032175] [2021-11-25 20:13:41,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:13:41,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:13:41,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:13:41,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:13:41,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:13:41,501 INFO L87 Difference]: Start difference. First operand has 14 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:41,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:13:41,526 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2021-11-25 20:13:41,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:13:41,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-11-25 20:13:41,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:13:41,535 INFO L225 Difference]: With dead ends: 12 [2021-11-25 20:13:41,535 INFO L226 Difference]: Without dead ends: 12 [2021-11-25 20:13:41,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:13:41,539 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 4 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:13:41,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 2 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:13:41,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-11-25 20:13:41,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-11-25 20:13:41,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:41,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2021-11-25 20:13:41,569 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 2 [2021-11-25 20:13:41,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:13:41,569 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2021-11-25 20:13:41,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:41,570 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2021-11-25 20:13:41,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-25 20:13:41,570 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:41,570 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-25 20:13:41,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 20:13:41,571 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:13:41,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:41,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1792867688, now seen corresponding path program 1 times [2021-11-25 20:13:41,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:41,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954358941] [2021-11-25 20:13:41,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:41,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:41,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:41,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:41,636 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:13:41,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954358941] [2021-11-25 20:13:41,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954358941] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:13:41,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882103760] [2021-11-25 20:13:41,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:41,637 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:13:41,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:13:41,639 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:13:41,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 20:13:41,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:41,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 20:13:41,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:13:41,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:41,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:13:41,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:41,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [882103760] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:13:41,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1484053673] [2021-11-25 20:13:41,785 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 20:13:41,786 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:13:41,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2021-11-25 20:13:41,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291764831] [2021-11-25 20:13:41,787 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:13:41,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 20:13:41,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:13:41,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 20:13:41,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-25 20:13:41,789 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:41,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:13:41,805 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2021-11-25 20:13:41,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:13:41,817 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-25 20:13:41,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:13:41,817 INFO L225 Difference]: With dead ends: 11 [2021-11-25 20:13:41,818 INFO L226 Difference]: Without dead ends: 11 [2021-11-25 20:13:41,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-25 20:13:41,819 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:13:41,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 3 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:13:41,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-11-25 20:13:41,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-11-25 20:13:41,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:41,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2021-11-25 20:13:41,823 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 6 [2021-11-25 20:13:41,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:13:41,823 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-11-25 20:13:41,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:41,824 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2021-11-25 20:13:41,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-25 20:13:41,824 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:41,825 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2021-11-25 20:13:41,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 20:13:42,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-25 20:13:42,041 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:13:42,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:42,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1792867688, now seen corresponding path program 1 times [2021-11-25 20:13:42,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:42,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413660524] [2021-11-25 20:13:42,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:42,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:42,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 20:13:42,072 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 20:13:42,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 20:13:42,125 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-25 20:13:42,125 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 20:13:42,126 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-25 20:13:42,128 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-25 20:13:42,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 20:13:42,130 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-25 20:13:42,132 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-25 20:13:42,132 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-11-25 20:13:42,155 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,155 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,155 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,156 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,156 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,156 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,156 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,156 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,156 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,157 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,157 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,157 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,157 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,157 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,157 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,157 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,158 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,158 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,158 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,158 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,158 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,158 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,159 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,159 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,159 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,159 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,159 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,159 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,159 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,160 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,160 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,160 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,160 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,160 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,160 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,160 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,161 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,161 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,161 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,161 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,161 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,162 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,162 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,162 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,162 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,163 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,163 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,163 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,163 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,163 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:42,164 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-11-25 20:13:42,166 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:13:42,168 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:13:42,168 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 20:13:42,170 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-25 20:13:42,170 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 66 transitions, 150 flow [2021-11-25 20:13:42,170 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 66 transitions, 150 flow [2021-11-25 20:13:42,171 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 66 transitions, 150 flow [2021-11-25 20:13:42,197 INFO L129 PetriNetUnfolder]: 13/135 cut-off events. [2021-11-25 20:13:42,197 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-11-25 20:13:42,199 INFO L84 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 135 events. 13/135 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 228 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 83. Up to 8 conditions per place. [2021-11-25 20:13:42,201 INFO L116 LiptonReduction]: Number of co-enabled transitions 720 [2021-11-25 20:13:43,718 INFO L131 LiptonReduction]: Checked pairs total: 917 [2021-11-25 20:13:43,719 INFO L133 LiptonReduction]: Total number of compositions: 54 [2021-11-25 20:13:43,721 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 20 places, 17 transitions, 52 flow [2021-11-25 20:13:43,724 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 38 states, 34 states have (on average 1.8529411764705883) internal successors, (63), 37 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:43,724 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 34 states have (on average 1.8529411764705883) internal successors, (63), 37 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:43,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-25 20:13:43,725 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:43,725 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-25 20:13:43,725 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:13:43,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:43,726 INFO L85 PathProgramCache]: Analyzing trace with hash 11412, now seen corresponding path program 1 times [2021-11-25 20:13:43,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:43,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267043125] [2021-11-25 20:13:43,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:43,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:43,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:43,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:43,774 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:13:43,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267043125] [2021-11-25 20:13:43,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267043125] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:13:43,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:13:43,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:13:43,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888237399] [2021-11-25 20:13:43,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:13:43,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:13:43,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:13:43,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:13:43,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:13:43,779 INFO L87 Difference]: Start difference. First operand has 38 states, 34 states have (on average 1.8529411764705883) internal successors, (63), 37 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:43,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:13:43,798 INFO L93 Difference]: Finished difference Result 35 states and 57 transitions. [2021-11-25 20:13:43,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:13:43,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-11-25 20:13:43,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:13:43,800 INFO L225 Difference]: With dead ends: 35 [2021-11-25 20:13:43,800 INFO L226 Difference]: Without dead ends: 35 [2021-11-25 20:13:43,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:13:43,802 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:13:43,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 4 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:13:43,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-11-25 20:13:43,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-11-25 20:13:43,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 32 states have (on average 1.78125) internal successors, (57), 34 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:43,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 57 transitions. [2021-11-25 20:13:43,816 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 57 transitions. Word has length 2 [2021-11-25 20:13:43,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:13:43,816 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 57 transitions. [2021-11-25 20:13:43,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:43,817 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 57 transitions. [2021-11-25 20:13:43,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 20:13:43,818 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:43,818 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:13:43,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 20:13:43,819 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:13:43,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:43,820 INFO L85 PathProgramCache]: Analyzing trace with hash 614783609, now seen corresponding path program 1 times [2021-11-25 20:13:43,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:43,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756461658] [2021-11-25 20:13:43,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:43,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:43,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:43,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:43,901 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:13:43,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756461658] [2021-11-25 20:13:43,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756461658] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:13:43,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890605029] [2021-11-25 20:13:43,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:43,902 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:13:43,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:13:43,904 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:13:43,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 20:13:43,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:43,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-25 20:13:43,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:13:44,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:44,002 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:13:44,040 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:44,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890605029] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:13:44,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1417254189] [2021-11-25 20:13:44,041 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 20:13:44,042 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:13:44,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2021-11-25 20:13:44,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538170252] [2021-11-25 20:13:44,043 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:13:44,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 20:13:44,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:13:44,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 20:13:44,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-25 20:13:44,044 INFO L87 Difference]: Start difference. First operand 35 states and 57 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:44,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:13:44,118 INFO L93 Difference]: Finished difference Result 39 states and 58 transitions. [2021-11-25 20:13:44,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 20:13:44,119 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-25 20:13:44,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:13:44,120 INFO L225 Difference]: With dead ends: 39 [2021-11-25 20:13:44,120 INFO L226 Difference]: Without dead ends: 39 [2021-11-25 20:13:44,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2021-11-25 20:13:44,122 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 49 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:13:44,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 8 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:13:44,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-11-25 20:13:44,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2021-11-25 20:13:44,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 35 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:44,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 57 transitions. [2021-11-25 20:13:44,129 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 57 transitions. Word has length 7 [2021-11-25 20:13:44,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:13:44,130 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 57 transitions. [2021-11-25 20:13:44,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:44,130 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 57 transitions. [2021-11-25 20:13:44,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-25 20:13:44,131 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:44,131 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2021-11-25 20:13:44,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 20:13:44,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:13:44,345 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:13:44,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:44,346 INFO L85 PathProgramCache]: Analyzing trace with hash 174122691, now seen corresponding path program 1 times [2021-11-25 20:13:44,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:44,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486198144] [2021-11-25 20:13:44,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:44,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:44,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:44,413 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:44,413 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:13:44,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486198144] [2021-11-25 20:13:44,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486198144] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:13:44,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913865679] [2021-11-25 20:13:44,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:44,414 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:13:44,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:13:44,425 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:13:44,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 20:13:44,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:44,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-25 20:13:44,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:13:44,579 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:44,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:13:44,640 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:44,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913865679] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:13:44,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1886404290] [2021-11-25 20:13:44,642 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 20:13:44,644 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:13:44,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4] total 10 [2021-11-25 20:13:44,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057748221] [2021-11-25 20:13:44,645 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:13:44,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-25 20:13:44,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:13:44,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-25 20:13:44,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-11-25 20:13:44,649 INFO L87 Difference]: Start difference. First operand 36 states and 57 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:44,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:13:44,768 INFO L93 Difference]: Finished difference Result 36 states and 55 transitions. [2021-11-25 20:13:44,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-25 20:13:44,768 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-25 20:13:44,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:13:44,772 INFO L225 Difference]: With dead ends: 36 [2021-11-25 20:13:44,772 INFO L226 Difference]: Without dead ends: 36 [2021-11-25 20:13:44,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-11-25 20:13:44,775 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 45 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:13:44,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 11 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:13:44,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-11-25 20:13:44,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2021-11-25 20:13:44,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.7) internal successors, (51), 30 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:44,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 51 transitions. [2021-11-25 20:13:44,797 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 51 transitions. Word has length 11 [2021-11-25 20:13:44,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:13:44,797 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 51 transitions. [2021-11-25 20:13:44,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:44,798 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2021-11-25 20:13:44,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-25 20:13:44,799 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:44,799 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2021-11-25 20:13:44,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 20:13:45,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:13:45,024 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:13:45,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:45,025 INFO L85 PathProgramCache]: Analyzing trace with hash 172180620, now seen corresponding path program 1 times [2021-11-25 20:13:45,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:45,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132292814] [2021-11-25 20:13:45,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:45,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:45,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 20:13:45,041 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 20:13:45,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 20:13:45,055 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-25 20:13:45,055 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 20:13:45,055 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-25 20:13:45,055 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-25 20:13:45,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 20:13:45,056 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-25 20:13:45,056 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-25 20:13:45,056 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-11-25 20:13:45,063 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,063 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,064 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,064 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,064 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,064 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,064 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,064 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,064 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,064 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,065 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,065 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,065 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,065 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,065 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,065 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,065 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,065 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,066 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,066 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,066 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,066 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,066 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,066 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,066 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,067 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,067 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,067 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,067 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,067 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,067 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,067 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,067 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,068 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,068 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,068 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,068 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,068 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,068 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,068 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,069 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,069 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,069 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,069 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,069 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,069 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,069 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,069 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,070 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,070 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,070 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,070 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,070 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,070 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,070 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,070 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,071 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,071 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,071 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,071 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,071 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,071 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,072 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,072 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,072 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,072 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,072 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,073 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,073 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,073 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,073 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,074 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,074 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,074 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,074 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:45,075 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-11-25 20:13:45,077 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:13:45,077 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:13:45,077 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 20:13:45,079 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-25 20:13:45,079 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 73 transitions, 176 flow [2021-11-25 20:13:45,080 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 73 transitions, 176 flow [2021-11-25 20:13:45,080 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 73 transitions, 176 flow [2021-11-25 20:13:45,139 INFO L129 PetriNetUnfolder]: 24/222 cut-off events. [2021-11-25 20:13:45,139 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2021-11-25 20:13:45,140 INFO L84 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 222 events. 24/222 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 505 event pairs, 1 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 143. Up to 16 conditions per place. [2021-11-25 20:13:45,146 INFO L116 LiptonReduction]: Number of co-enabled transitions 1200 [2021-11-25 20:13:46,579 INFO L131 LiptonReduction]: Checked pairs total: 1580 [2021-11-25 20:13:46,580 INFO L133 LiptonReduction]: Total number of compositions: 58 [2021-11-25 20:13:46,581 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 20 transitions, 70 flow [2021-11-25 20:13:46,587 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 82 states, 77 states have (on average 2.220779220779221) internal successors, (171), 81 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:46,588 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 77 states have (on average 2.220779220779221) internal successors, (171), 81 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:46,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-25 20:13:46,588 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:46,588 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-25 20:13:46,589 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:13:46,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:46,589 INFO L85 PathProgramCache]: Analyzing trace with hash 15819, now seen corresponding path program 1 times [2021-11-25 20:13:46,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:46,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293163187] [2021-11-25 20:13:46,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:46,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:46,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:46,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:46,605 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:13:46,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293163187] [2021-11-25 20:13:46,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293163187] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:13:46,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:13:46,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:13:46,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378723571] [2021-11-25 20:13:46,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:13:46,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:13:46,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:13:46,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:13:46,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:13:46,608 INFO L87 Difference]: Start difference. First operand has 82 states, 77 states have (on average 2.220779220779221) internal successors, (171), 81 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:46,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:13:46,626 INFO L93 Difference]: Finished difference Result 78 states and 161 transitions. [2021-11-25 20:13:46,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:13:46,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-11-25 20:13:46,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:13:46,629 INFO L225 Difference]: With dead ends: 78 [2021-11-25 20:13:46,629 INFO L226 Difference]: Without dead ends: 78 [2021-11-25 20:13:46,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:13:46,631 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 7 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:13:46,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 4 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:13:46,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-11-25 20:13:46,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2021-11-25 20:13:46,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 74 states have (on average 2.175675675675676) internal successors, (161), 77 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:46,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 161 transitions. [2021-11-25 20:13:46,641 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 161 transitions. Word has length 2 [2021-11-25 20:13:46,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:13:46,641 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 161 transitions. [2021-11-25 20:13:46,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:46,641 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 161 transitions. [2021-11-25 20:13:46,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 20:13:46,642 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:46,642 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:13:46,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 20:13:46,643 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:13:46,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:46,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1796427351, now seen corresponding path program 1 times [2021-11-25 20:13:46,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:46,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363079484] [2021-11-25 20:13:46,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:46,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:46,678 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:46,678 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:13:46,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363079484] [2021-11-25 20:13:46,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363079484] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:13:46,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375203363] [2021-11-25 20:13:46,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:46,679 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:13:46,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:13:46,692 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:13:46,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 20:13:46,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:46,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-25 20:13:46,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:13:46,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:46,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:13:46,831 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:46,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375203363] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:13:46,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1089779914] [2021-11-25 20:13:46,832 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 20:13:46,834 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:13:46,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2021-11-25 20:13:46,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086675410] [2021-11-25 20:13:46,834 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:13:46,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 20:13:46,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:13:46,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 20:13:46,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-25 20:13:46,836 INFO L87 Difference]: Start difference. First operand 78 states and 161 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:46,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:13:46,936 INFO L93 Difference]: Finished difference Result 98 states and 183 transitions. [2021-11-25 20:13:46,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 20:13:46,937 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-25 20:13:46,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:13:46,938 INFO L225 Difference]: With dead ends: 98 [2021-11-25 20:13:46,938 INFO L226 Difference]: Without dead ends: 98 [2021-11-25 20:13:46,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2021-11-25 20:13:46,939 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 96 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:13:46,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 6 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:13:46,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-11-25 20:13:46,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 88. [2021-11-25 20:13:46,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 85 states have (on average 2.0470588235294116) internal successors, (174), 87 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:46,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 174 transitions. [2021-11-25 20:13:46,954 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 174 transitions. Word has length 7 [2021-11-25 20:13:46,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:13:46,954 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 174 transitions. [2021-11-25 20:13:46,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:46,955 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 174 transitions. [2021-11-25 20:13:46,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-25 20:13:46,959 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:46,959 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2021-11-25 20:13:46,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 20:13:47,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:13:47,172 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:13:47,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:47,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1954199073, now seen corresponding path program 1 times [2021-11-25 20:13:47,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:47,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732778673] [2021-11-25 20:13:47,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:47,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:47,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:47,247 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:47,247 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:13:47,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732778673] [2021-11-25 20:13:47,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732778673] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:13:47,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122946510] [2021-11-25 20:13:47,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:47,248 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:13:47,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:13:47,249 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:13:47,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 20:13:47,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:47,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-25 20:13:47,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:13:47,384 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:47,384 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:13:47,443 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:47,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122946510] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:13:47,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [677953397] [2021-11-25 20:13:47,444 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 20:13:47,445 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:13:47,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4] total 10 [2021-11-25 20:13:47,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071527495] [2021-11-25 20:13:47,446 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:13:47,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-25 20:13:47,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:13:47,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-25 20:13:47,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-11-25 20:13:47,448 INFO L87 Difference]: Start difference. First operand 88 states and 174 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:47,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:13:47,583 INFO L93 Difference]: Finished difference Result 92 states and 174 transitions. [2021-11-25 20:13:47,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 20:13:47,584 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-25 20:13:47,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:13:47,587 INFO L225 Difference]: With dead ends: 92 [2021-11-25 20:13:47,587 INFO L226 Difference]: Without dead ends: 92 [2021-11-25 20:13:47,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2021-11-25 20:13:47,588 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 111 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:13:47,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 15 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:13:47,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-11-25 20:13:47,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 67. [2021-11-25 20:13:47,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 66 states have (on average 2.106060606060606) internal successors, (139), 66 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:47,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 139 transitions. [2021-11-25 20:13:47,608 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 139 transitions. Word has length 11 [2021-11-25 20:13:47,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:13:47,609 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 139 transitions. [2021-11-25 20:13:47,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:47,609 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 139 transitions. [2021-11-25 20:13:47,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-25 20:13:47,611 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:47,611 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2021-11-25 20:13:47,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-25 20:13:47,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-25 20:13:47,832 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:13:47,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:47,833 INFO L85 PathProgramCache]: Analyzing trace with hash 344461654, now seen corresponding path program 1 times [2021-11-25 20:13:47,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:47,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457690127] [2021-11-25 20:13:47,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:47,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:47,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 20:13:47,872 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 20:13:47,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 20:13:47,909 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-25 20:13:47,909 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 20:13:47,909 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-25 20:13:47,909 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-25 20:13:47,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-25 20:13:47,910 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-25 20:13:47,910 WARN L234 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-25 20:13:47,910 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-11-25 20:13:47,937 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,937 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,937 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,937 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,937 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,938 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,938 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,938 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,938 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,938 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,938 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,938 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,939 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,939 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,939 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,939 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,939 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,939 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,940 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,940 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,940 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,941 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,941 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,941 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,941 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,941 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,941 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,941 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,942 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,942 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,942 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,942 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,942 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,942 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,942 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,943 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,943 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,943 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,943 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,943 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,943 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,944 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,944 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,944 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,944 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,944 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,945 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,945 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,945 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,945 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,945 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,945 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,947 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,947 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,947 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,947 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,947 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,947 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,948 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,948 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,948 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,948 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,948 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,949 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,949 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,949 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,949 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,949 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,949 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,949 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,950 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,950 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,950 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,950 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,950 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,950 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,950 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,951 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,951 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,951 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,951 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,951 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,952 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,952 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,952 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,952 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,953 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,953 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,953 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,953 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,953 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,954 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,954 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,954 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,954 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,954 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,955 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,955 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,955 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,955 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:47,956 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-11-25 20:13:47,958 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:13:47,958 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:13:47,959 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 20:13:47,963 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-25 20:13:47,963 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 80 transitions, 204 flow [2021-11-25 20:13:47,963 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 80 transitions, 204 flow [2021-11-25 20:13:47,963 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 80 transitions, 204 flow [2021-11-25 20:13:48,044 INFO L129 PetriNetUnfolder]: 47/377 cut-off events. [2021-11-25 20:13:48,045 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2021-11-25 20:13:48,047 INFO L84 FinitePrefix]: Finished finitePrefix Result has 432 conditions, 377 events. 47/377 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1190 event pairs, 6 based on Foata normal form. 0/325 useless extension candidates. Maximal degree in co-relation 242. Up to 32 conditions per place. [2021-11-25 20:13:48,054 INFO L116 LiptonReduction]: Number of co-enabled transitions 1760 [2021-11-25 20:13:49,558 INFO L131 LiptonReduction]: Checked pairs total: 2638 [2021-11-25 20:13:49,559 INFO L133 LiptonReduction]: Total number of compositions: 62 [2021-11-25 20:13:49,559 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 23 transitions, 90 flow [2021-11-25 20:13:49,570 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 170 states, 164 states have (on average 2.6280487804878048) internal successors, (431), 169 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:49,571 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 164 states have (on average 2.6280487804878048) internal successors, (431), 169 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:49,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-25 20:13:49,571 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:49,571 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-25 20:13:49,571 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:13:49,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:49,572 INFO L85 PathProgramCache]: Analyzing trace with hash 20583, now seen corresponding path program 1 times [2021-11-25 20:13:49,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:49,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689925816] [2021-11-25 20:13:49,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:49,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:49,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:49,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:49,596 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:13:49,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689925816] [2021-11-25 20:13:49,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689925816] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:13:49,596 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:13:49,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:13:49,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650516179] [2021-11-25 20:13:49,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:13:49,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:13:49,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:13:49,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:13:49,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:13:49,598 INFO L87 Difference]: Start difference. First operand has 170 states, 164 states have (on average 2.6280487804878048) internal successors, (431), 169 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:49,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:13:49,624 INFO L93 Difference]: Finished difference Result 169 states and 430 transitions. [2021-11-25 20:13:49,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:13:49,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-11-25 20:13:49,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:13:49,628 INFO L225 Difference]: With dead ends: 169 [2021-11-25 20:13:49,628 INFO L226 Difference]: Without dead ends: 169 [2021-11-25 20:13:49,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:13:49,630 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:13:49,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:13:49,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2021-11-25 20:13:49,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2021-11-25 20:13:49,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 2.6219512195121952) internal successors, (430), 168 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:49,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 430 transitions. [2021-11-25 20:13:49,656 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 430 transitions. Word has length 2 [2021-11-25 20:13:49,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:13:49,656 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 430 transitions. [2021-11-25 20:13:49,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:49,657 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 430 transitions. [2021-11-25 20:13:49,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-25 20:13:49,657 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:49,657 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-25 20:13:49,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-25 20:13:49,658 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:13:49,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:49,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1854953524, now seen corresponding path program 1 times [2021-11-25 20:13:49,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:49,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949081475] [2021-11-25 20:13:49,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:49,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:49,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:49,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:13:49,686 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:13:49,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949081475] [2021-11-25 20:13:49,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949081475] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:13:49,686 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:13:49,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:13:49,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307432311] [2021-11-25 20:13:49,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:13:49,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:13:49,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:13:49,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:13:49,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:13:49,688 INFO L87 Difference]: Start difference. First operand 169 states and 430 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:49,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:13:49,705 INFO L93 Difference]: Finished difference Result 165 states and 416 transitions. [2021-11-25 20:13:49,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:13:49,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-25 20:13:49,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:13:49,706 INFO L225 Difference]: With dead ends: 165 [2021-11-25 20:13:49,706 INFO L226 Difference]: Without dead ends: 165 [2021-11-25 20:13:49,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:13:49,708 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:13:49,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:13:49,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-11-25 20:13:49,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2021-11-25 20:13:49,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 160 states have (on average 2.6) internal successors, (416), 164 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:49,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 416 transitions. [2021-11-25 20:13:49,733 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 416 transitions. Word has length 6 [2021-11-25 20:13:49,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:13:49,733 INFO L470 AbstractCegarLoop]: Abstraction has 165 states and 416 transitions. [2021-11-25 20:13:49,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:49,733 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 416 transitions. [2021-11-25 20:13:49,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 20:13:49,734 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:49,734 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:13:49,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-25 20:13:49,734 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:13:49,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:49,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1671537524, now seen corresponding path program 1 times [2021-11-25 20:13:49,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:49,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881017409] [2021-11-25 20:13:49,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:49,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:49,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:49,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:49,758 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:13:49,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881017409] [2021-11-25 20:13:49,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881017409] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:13:49,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479031042] [2021-11-25 20:13:49,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:49,758 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:13:49,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:13:49,759 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:13:49,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-25 20:13:49,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:49,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-25 20:13:49,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:13:49,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:49,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:13:49,895 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:49,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479031042] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:13:49,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [881385666] [2021-11-25 20:13:49,896 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 20:13:49,898 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:13:49,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3, 3] total 7 [2021-11-25 20:13:49,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879668833] [2021-11-25 20:13:49,898 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:13:49,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 20:13:49,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:13:49,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 20:13:49,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-25 20:13:49,900 INFO L87 Difference]: Start difference. First operand 165 states and 416 transitions. Second operand has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:49,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:13:49,999 INFO L93 Difference]: Finished difference Result 220 states and 511 transitions. [2021-11-25 20:13:50,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-25 20:13:50,010 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-25 20:13:50,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:13:50,012 INFO L225 Difference]: With dead ends: 220 [2021-11-25 20:13:50,012 INFO L226 Difference]: Without dead ends: 220 [2021-11-25 20:13:50,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2021-11-25 20:13:50,013 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 76 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:13:50,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 8 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:13:50,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-11-25 20:13:50,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 196. [2021-11-25 20:13:50,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 193 states have (on average 2.461139896373057) internal successors, (475), 195 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:50,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 475 transitions. [2021-11-25 20:13:50,023 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 475 transitions. Word has length 7 [2021-11-25 20:13:50,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:13:50,024 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 475 transitions. [2021-11-25 20:13:50,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:50,024 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 475 transitions. [2021-11-25 20:13:50,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-25 20:13:50,025 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:50,025 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2021-11-25 20:13:50,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-25 20:13:50,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-25 20:13:50,244 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:13:50,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:50,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1015369778, now seen corresponding path program 1 times [2021-11-25 20:13:50,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:50,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111662507] [2021-11-25 20:13:50,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:50,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:50,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:50,303 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:50,303 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:13:50,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111662507] [2021-11-25 20:13:50,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111662507] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:13:50,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053898031] [2021-11-25 20:13:50,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:50,304 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:13:50,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:13:50,318 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:13:50,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-25 20:13:50,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:50,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-25 20:13:50,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:13:50,447 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 20:13:50,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:13:50,506 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 20:13:50,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053898031] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:13:50,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1810730218] [2021-11-25 20:13:50,507 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 20:13:50,531 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:13:50,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2021-11-25 20:13:50,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978714679] [2021-11-25 20:13:50,532 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:13:50,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-25 20:13:50,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:13:50,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-25 20:13:50,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-11-25 20:13:50,533 INFO L87 Difference]: Start difference. First operand 196 states and 475 transitions. Second operand has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:50,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:13:50,696 INFO L93 Difference]: Finished difference Result 216 states and 499 transitions. [2021-11-25 20:13:50,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-25 20:13:50,697 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-25 20:13:50,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:13:50,699 INFO L225 Difference]: With dead ends: 216 [2021-11-25 20:13:50,699 INFO L226 Difference]: Without dead ends: 216 [2021-11-25 20:13:50,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2021-11-25 20:13:50,701 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 108 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:13:50,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 12 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:13:50,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-25 20:13:50,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 139. [2021-11-25 20:13:50,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 138 states have (on average 2.5434782608695654) internal successors, (351), 138 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:50,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 351 transitions. [2021-11-25 20:13:50,710 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 351 transitions. Word has length 15 [2021-11-25 20:13:50,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:13:50,710 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 351 transitions. [2021-11-25 20:13:50,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:50,711 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 351 transitions. [2021-11-25 20:13:50,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-25 20:13:50,712 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:50,712 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1] [2021-11-25 20:13:50,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-25 20:13:50,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:13:50,930 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:13:50,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:50,930 INFO L85 PathProgramCache]: Analyzing trace with hash 885254433, now seen corresponding path program 1 times [2021-11-25 20:13:50,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:50,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732122906] [2021-11-25 20:13:50,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:50,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:50,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 20:13:50,954 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 20:13:50,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 20:13:50,985 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-25 20:13:50,985 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 20:13:50,986 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-25 20:13:50,986 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-25 20:13:50,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-25 20:13:50,987 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-25 20:13:50,987 WARN L234 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-25 20:13:50,987 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2021-11-25 20:13:50,996 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:50,996 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:50,997 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:50,997 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:50,997 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:50,997 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:50,997 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:50,997 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:50,998 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:50,998 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:50,998 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:50,998 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:50,998 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:50,998 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:50,998 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:50,999 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:50,999 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:50,999 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:50,999 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:50,999 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,000 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,000 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,000 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,000 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,000 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,000 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,001 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,001 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,001 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,001 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,001 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,001 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,001 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,002 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,002 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,002 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,002 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,002 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,002 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,003 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,003 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,003 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,003 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,003 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,004 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,004 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,004 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,004 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,004 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,004 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,004 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,005 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,005 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,005 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,005 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,005 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,005 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,006 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,006 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,006 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,006 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,006 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,006 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,007 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,007 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,007 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,007 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,007 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,007 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,008 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,008 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,008 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,008 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,008 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,008 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,009 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,009 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,009 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,009 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,009 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,009 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,010 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,010 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,010 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,010 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,010 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,010 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,011 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,011 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,011 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,011 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,011 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,011 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,011 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,012 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,012 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,012 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,012 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,012 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,012 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,013 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,013 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,013 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,013 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,014 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,014 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,014 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,015 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,015 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,015 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,015 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,016 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,016 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,016 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,016 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,016 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,017 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,017 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,017 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,017 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,018 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,018 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,018 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,019 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,019 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:51,020 INFO L148 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2021-11-25 20:13:51,022 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:13:51,022 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:13:51,022 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 20:13:51,024 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-25 20:13:51,024 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 87 transitions, 234 flow [2021-11-25 20:13:51,024 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 87 transitions, 234 flow [2021-11-25 20:13:51,024 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 87 transitions, 234 flow [2021-11-25 20:13:51,106 INFO L129 PetriNetUnfolder]: 98/672 cut-off events. [2021-11-25 20:13:51,106 INFO L130 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2021-11-25 20:13:51,109 INFO L84 FinitePrefix]: Finished finitePrefix Result has 783 conditions, 672 events. 98/672 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2784 event pairs, 23 based on Foata normal form. 0/584 useless extension candidates. Maximal degree in co-relation 422. Up to 80 conditions per place. [2021-11-25 20:13:51,123 INFO L116 LiptonReduction]: Number of co-enabled transitions 2400 [2021-11-25 20:13:52,653 INFO L131 LiptonReduction]: Checked pairs total: 3089 [2021-11-25 20:13:52,654 INFO L133 LiptonReduction]: Total number of compositions: 66 [2021-11-25 20:13:52,654 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 26 transitions, 112 flow [2021-11-25 20:13:52,669 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 346 states, 339 states have (on average 3.0648967551622417) internal successors, (1039), 345 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:52,671 INFO L276 IsEmpty]: Start isEmpty. Operand has 346 states, 339 states have (on average 3.0648967551622417) internal successors, (1039), 345 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:52,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-25 20:13:52,671 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:52,671 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-25 20:13:52,672 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:13:52,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:52,672 INFO L85 PathProgramCache]: Analyzing trace with hash 25706, now seen corresponding path program 1 times [2021-11-25 20:13:52,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:52,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718807125] [2021-11-25 20:13:52,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:52,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:52,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:52,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:52,685 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:13:52,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718807125] [2021-11-25 20:13:52,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718807125] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:13:52,685 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:13:52,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:13:52,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054620241] [2021-11-25 20:13:52,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:13:52,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:13:52,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:13:52,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:13:52,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:13:52,688 INFO L87 Difference]: Start difference. First operand has 346 states, 339 states have (on average 3.0648967551622417) internal successors, (1039), 345 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:52,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:13:52,712 INFO L93 Difference]: Finished difference Result 345 states and 1038 transitions. [2021-11-25 20:13:52,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:13:52,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-11-25 20:13:52,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:13:52,717 INFO L225 Difference]: With dead ends: 345 [2021-11-25 20:13:52,717 INFO L226 Difference]: Without dead ends: 345 [2021-11-25 20:13:52,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:13:52,718 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:13:52,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:13:52,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2021-11-25 20:13:52,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2021-11-25 20:13:52,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 339 states have (on average 3.061946902654867) internal successors, (1038), 344 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:52,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 1038 transitions. [2021-11-25 20:13:52,734 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 1038 transitions. Word has length 2 [2021-11-25 20:13:52,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:13:52,735 INFO L470 AbstractCegarLoop]: Abstraction has 345 states and 1038 transitions. [2021-11-25 20:13:52,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:52,735 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 1038 transitions. [2021-11-25 20:13:52,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-25 20:13:52,735 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:52,736 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-25 20:13:52,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-25 20:13:52,736 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:13:52,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:52,736 INFO L85 PathProgramCache]: Analyzing trace with hash -2000893746, now seen corresponding path program 1 times [2021-11-25 20:13:52,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:52,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107230806] [2021-11-25 20:13:52,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:52,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:52,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:52,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:13:52,753 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:13:52,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107230806] [2021-11-25 20:13:52,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107230806] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:13:52,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:13:52,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:13:52,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839678459] [2021-11-25 20:13:52,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:13:52,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:13:52,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:13:52,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:13:52,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:13:52,755 INFO L87 Difference]: Start difference. First operand 345 states and 1038 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:52,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:13:52,777 INFO L93 Difference]: Finished difference Result 340 states and 1018 transitions. [2021-11-25 20:13:52,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:13:52,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-25 20:13:52,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:13:52,781 INFO L225 Difference]: With dead ends: 340 [2021-11-25 20:13:52,781 INFO L226 Difference]: Without dead ends: 340 [2021-11-25 20:13:52,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:13:52,782 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 5 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:13:52,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 4 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:13:52,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2021-11-25 20:13:52,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2021-11-25 20:13:52,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 334 states have (on average 3.0479041916167664) internal successors, (1018), 339 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:52,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 1018 transitions. [2021-11-25 20:13:52,798 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 1018 transitions. Word has length 6 [2021-11-25 20:13:52,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:13:52,798 INFO L470 AbstractCegarLoop]: Abstraction has 340 states and 1018 transitions. [2021-11-25 20:13:52,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:52,798 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 1018 transitions. [2021-11-25 20:13:52,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 20:13:52,799 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:52,799 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:13:52,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-25 20:13:52,799 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:13:52,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:52,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1895477050, now seen corresponding path program 1 times [2021-11-25 20:13:52,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:52,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26348025] [2021-11-25 20:13:52,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:52,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:52,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:52,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:52,821 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:13:52,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26348025] [2021-11-25 20:13:52,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26348025] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:13:52,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451491715] [2021-11-25 20:13:52,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:52,822 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:13:52,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:13:52,824 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:13:52,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-25 20:13:52,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:52,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-25 20:13:52,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:13:52,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:52,920 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:13:52,953 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:52,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451491715] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:13:52,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1712102445] [2021-11-25 20:13:52,954 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 20:13:52,956 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:13:52,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3, 3] total 8 [2021-11-25 20:13:52,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711099945] [2021-11-25 20:13:52,957 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:13:52,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 20:13:52,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:13:52,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 20:13:52,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-25 20:13:52,958 INFO L87 Difference]: Start difference. First operand 340 states and 1018 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:53,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:13:53,085 INFO L93 Difference]: Finished difference Result 477 states and 1327 transitions. [2021-11-25 20:13:53,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-25 20:13:53,086 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-25 20:13:53,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:13:53,112 INFO L225 Difference]: With dead ends: 477 [2021-11-25 20:13:53,112 INFO L226 Difference]: Without dead ends: 477 [2021-11-25 20:13:53,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-11-25 20:13:53,115 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 120 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:13:53,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 9 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:13:53,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2021-11-25 20:13:53,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 422. [2021-11-25 20:13:53,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 418 states have (on average 2.911483253588517) internal successors, (1217), 421 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:53,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 1217 transitions. [2021-11-25 20:13:53,135 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 1217 transitions. Word has length 7 [2021-11-25 20:13:53,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:13:53,135 INFO L470 AbstractCegarLoop]: Abstraction has 422 states and 1217 transitions. [2021-11-25 20:13:53,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:53,136 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 1217 transitions. [2021-11-25 20:13:53,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-25 20:13:53,137 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:53,137 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2021-11-25 20:13:53,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-25 20:13:53,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:13:53,350 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:13:53,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:53,350 INFO L85 PathProgramCache]: Analyzing trace with hash 69739715, now seen corresponding path program 1 times [2021-11-25 20:13:53,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:53,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486514030] [2021-11-25 20:13:53,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:53,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:53,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:53,389 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:53,389 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:13:53,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486514030] [2021-11-25 20:13:53,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486514030] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:13:53,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680463945] [2021-11-25 20:13:53,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:53,390 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:13:53,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:13:53,391 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:13:53,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-25 20:13:53,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:53,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-25 20:13:53,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:13:53,525 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 20:13:53,525 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:13:53,593 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 20:13:53,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680463945] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:13:53,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1232172592] [2021-11-25 20:13:53,595 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 20:13:53,596 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:13:53,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 11 [2021-11-25 20:13:53,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106684482] [2021-11-25 20:13:53,597 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:13:53,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-25 20:13:53,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:13:53,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-25 20:13:53,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2021-11-25 20:13:53,599 INFO L87 Difference]: Start difference. First operand 422 states and 1217 transitions. Second operand has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:53,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:13:53,792 INFO L93 Difference]: Finished difference Result 476 states and 1316 transitions. [2021-11-25 20:13:53,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-25 20:13:53,793 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-25 20:13:53,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:13:53,797 INFO L225 Difference]: With dead ends: 476 [2021-11-25 20:13:53,797 INFO L226 Difference]: Without dead ends: 476 [2021-11-25 20:13:53,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=183, Invalid=417, Unknown=0, NotChecked=0, Total=600 [2021-11-25 20:13:53,799 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 142 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:13:53,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 14 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:13:53,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2021-11-25 20:13:53,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 283. [2021-11-25 20:13:53,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 282 states have (on average 3.00354609929078) internal successors, (847), 282 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:53,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 847 transitions. [2021-11-25 20:13:53,814 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 847 transitions. Word has length 15 [2021-11-25 20:13:53,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:13:53,814 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 847 transitions. [2021-11-25 20:13:53,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:53,814 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 847 transitions. [2021-11-25 20:13:53,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-25 20:13:53,816 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:53,816 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:13:53,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-25 20:13:54,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:13:54,044 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:13:54,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:54,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1350942946, now seen corresponding path program 1 times [2021-11-25 20:13:54,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:54,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450912682] [2021-11-25 20:13:54,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:54,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:54,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 20:13:54,063 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 20:13:54,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 20:13:54,079 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-25 20:13:54,080 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 20:13:54,080 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-25 20:13:54,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-25 20:13:54,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-25 20:13:54,081 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-25 20:13:54,081 WARN L234 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-25 20:13:54,081 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2021-11-25 20:13:54,091 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,091 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,091 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,091 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,091 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,091 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,091 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,091 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,091 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,091 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,091 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,091 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,091 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,091 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,092 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,092 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,092 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,092 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,092 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,092 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,092 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,092 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,092 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,092 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,092 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,092 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,092 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,092 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,093 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,093 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,093 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,093 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,093 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,093 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,093 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,093 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,093 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,093 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,093 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,093 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,093 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,093 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,094 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,094 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,094 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,094 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,094 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,094 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,094 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,094 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,094 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,094 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,094 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,094 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,094 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,094 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,094 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,094 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,095 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,095 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,095 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,095 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,095 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,095 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,095 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,095 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,095 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,095 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,096 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,096 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,096 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,096 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,096 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,096 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,096 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,096 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,096 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,097 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,097 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,097 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,097 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,097 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,097 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,097 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,098 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,098 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,098 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,098 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,098 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,098 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,098 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,098 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,099 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,099 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,099 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,099 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,099 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,099 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,099 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,100 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,100 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,100 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,100 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,100 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,100 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,101 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,101 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,101 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,101 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,101 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,101 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,101 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,101 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,102 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,102 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,102 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,102 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,102 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,102 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,102 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,103 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,103 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,103 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,103 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,103 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,104 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,104 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,104 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,104 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,104 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,105 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,105 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,105 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,105 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,105 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,106 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,106 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,106 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,106 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,106 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,107 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,107 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,107 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,107 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,107 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,108 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,108 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,108 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,108 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,108 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:54,110 INFO L148 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2021-11-25 20:13:54,111 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:13:54,111 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:13:54,112 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 20:13:54,113 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-25 20:13:54,115 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 94 transitions, 266 flow [2021-11-25 20:13:54,115 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 94 transitions, 266 flow [2021-11-25 20:13:54,115 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 94 transitions, 266 flow [2021-11-25 20:13:54,342 INFO L129 PetriNetUnfolder]: 213/1255 cut-off events. [2021-11-25 20:13:54,342 INFO L130 PetriNetUnfolder]: For 242/242 co-relation queries the response was YES. [2021-11-25 20:13:54,348 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1487 conditions, 1255 events. 213/1255 cut-off events. For 242/242 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6802 event pairs, 72 based on Foata normal form. 0/1099 useless extension candidates. Maximal degree in co-relation 771. Up to 192 conditions per place. [2021-11-25 20:13:54,379 INFO L116 LiptonReduction]: Number of co-enabled transitions 3120 [2021-11-25 20:13:56,043 INFO L131 LiptonReduction]: Checked pairs total: 5000 [2021-11-25 20:13:56,043 INFO L133 LiptonReduction]: Total number of compositions: 70 [2021-11-25 20:13:56,044 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 29 transitions, 136 flow [2021-11-25 20:13:56,078 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 698 states, 690 states have (on average 3.5231884057971015) internal successors, (2431), 697 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:56,081 INFO L276 IsEmpty]: Start isEmpty. Operand has 698 states, 690 states have (on average 3.5231884057971015) internal successors, (2431), 697 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:56,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-25 20:13:56,081 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:56,082 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-25 20:13:56,082 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:13:56,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:56,082 INFO L85 PathProgramCache]: Analyzing trace with hash 31174, now seen corresponding path program 1 times [2021-11-25 20:13:56,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:56,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948916751] [2021-11-25 20:13:56,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:56,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:56,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:56,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:56,095 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:13:56,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948916751] [2021-11-25 20:13:56,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948916751] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:13:56,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:13:56,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:13:56,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517635327] [2021-11-25 20:13:56,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:13:56,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:13:56,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:13:56,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:13:56,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:13:56,100 INFO L87 Difference]: Start difference. First operand has 698 states, 690 states have (on average 3.5231884057971015) internal successors, (2431), 697 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:56,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:13:56,130 INFO L93 Difference]: Finished difference Result 697 states and 2430 transitions. [2021-11-25 20:13:56,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:13:56,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-11-25 20:13:56,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:13:56,138 INFO L225 Difference]: With dead ends: 697 [2021-11-25 20:13:56,138 INFO L226 Difference]: Without dead ends: 697 [2021-11-25 20:13:56,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:13:56,139 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:13:56,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:13:56,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2021-11-25 20:13:56,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 697. [2021-11-25 20:13:56,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 690 states have (on average 3.5217391304347827) internal successors, (2430), 696 states have internal predecessors, (2430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:56,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 2430 transitions. [2021-11-25 20:13:56,170 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 2430 transitions. Word has length 2 [2021-11-25 20:13:56,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:13:56,170 INFO L470 AbstractCegarLoop]: Abstraction has 697 states and 2430 transitions. [2021-11-25 20:13:56,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:56,170 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 2430 transitions. [2021-11-25 20:13:56,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-25 20:13:56,171 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:56,171 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-25 20:13:56,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-25 20:13:56,171 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:13:56,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:56,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1236355649, now seen corresponding path program 1 times [2021-11-25 20:13:56,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:56,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802755366] [2021-11-25 20:13:56,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:56,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:56,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:56,186 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:13:56,187 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:13:56,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802755366] [2021-11-25 20:13:56,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802755366] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:13:56,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:13:56,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:13:56,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058009910] [2021-11-25 20:13:56,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:13:56,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:13:56,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:13:56,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:13:56,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:13:56,189 INFO L87 Difference]: Start difference. First operand 697 states and 2430 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:56,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:13:56,223 INFO L93 Difference]: Finished difference Result 691 states and 2403 transitions. [2021-11-25 20:13:56,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:13:56,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-25 20:13:56,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:13:56,231 INFO L225 Difference]: With dead ends: 691 [2021-11-25 20:13:56,231 INFO L226 Difference]: Without dead ends: 691 [2021-11-25 20:13:56,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:13:56,232 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:13:56,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 4 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:13:56,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2021-11-25 20:13:56,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 691. [2021-11-25 20:13:56,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 684 states have (on average 3.513157894736842) internal successors, (2403), 690 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:56,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 2403 transitions. [2021-11-25 20:13:56,262 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 2403 transitions. Word has length 6 [2021-11-25 20:13:56,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:13:56,263 INFO L470 AbstractCegarLoop]: Abstraction has 691 states and 2403 transitions. [2021-11-25 20:13:56,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:56,263 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 2403 transitions. [2021-11-25 20:13:56,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 20:13:56,263 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:56,263 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:13:56,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-25 20:13:56,264 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:13:56,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:56,264 INFO L85 PathProgramCache]: Analyzing trace with hash 330708179, now seen corresponding path program 1 times [2021-11-25 20:13:56,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:56,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395038211] [2021-11-25 20:13:56,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:56,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:56,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:56,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:56,290 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:13:56,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395038211] [2021-11-25 20:13:56,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395038211] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:13:56,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118076032] [2021-11-25 20:13:56,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:56,291 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:13:56,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:13:56,292 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:13:56,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-25 20:13:56,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:56,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-25 20:13:56,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:13:56,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:56,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:13:56,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:56,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118076032] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:13:56,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [11391771] [2021-11-25 20:13:56,438 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 20:13:56,439 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:13:56,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3, 3] total 8 [2021-11-25 20:13:56,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510399538] [2021-11-25 20:13:56,440 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:13:56,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 20:13:56,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:13:56,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 20:13:56,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-25 20:13:56,441 INFO L87 Difference]: Start difference. First operand 691 states and 2403 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:56,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:13:56,569 INFO L93 Difference]: Finished difference Result 998 states and 3252 transitions. [2021-11-25 20:13:56,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-25 20:13:56,570 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-25 20:13:56,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:13:56,580 INFO L225 Difference]: With dead ends: 998 [2021-11-25 20:13:56,580 INFO L226 Difference]: Without dead ends: 998 [2021-11-25 20:13:56,581 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-11-25 20:13:56,581 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 153 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:13:56,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 10 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:13:56,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 998 states. [2021-11-25 20:13:56,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 998 to 880. [2021-11-25 20:13:56,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 875 states have (on average 3.3794285714285714) internal successors, (2957), 879 states have internal predecessors, (2957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:56,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 2957 transitions. [2021-11-25 20:13:56,623 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 2957 transitions. Word has length 7 [2021-11-25 20:13:56,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:13:56,623 INFO L470 AbstractCegarLoop]: Abstraction has 880 states and 2957 transitions. [2021-11-25 20:13:56,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:56,624 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 2957 transitions. [2021-11-25 20:13:56,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-25 20:13:56,624 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:56,624 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2021-11-25 20:13:56,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-25 20:13:56,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-11-25 20:13:56,844 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:13:56,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:56,844 INFO L85 PathProgramCache]: Analyzing trace with hash -902249001, now seen corresponding path program 1 times [2021-11-25 20:13:56,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:56,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539234366] [2021-11-25 20:13:56,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:56,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:56,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:56,879 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:56,879 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:13:56,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539234366] [2021-11-25 20:13:56,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539234366] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:13:56,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741899519] [2021-11-25 20:13:56,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:56,880 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:13:56,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:13:56,881 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:13:56,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-25 20:13:57,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:57,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-25 20:13:57,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:13:57,062 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 20:13:57,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:13:57,126 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 20:13:57,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741899519] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:13:57,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1135576553] [2021-11-25 20:13:57,127 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 20:13:57,128 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:13:57,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 11 [2021-11-25 20:13:57,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991710553] [2021-11-25 20:13:57,129 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:13:57,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-25 20:13:57,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:13:57,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-25 20:13:57,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2021-11-25 20:13:57,130 INFO L87 Difference]: Start difference. First operand 880 states and 2957 transitions. Second operand has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:57,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:13:57,372 INFO L93 Difference]: Finished difference Result 1098 states and 3568 transitions. [2021-11-25 20:13:57,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-25 20:13:57,373 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-25 20:13:57,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:13:57,385 INFO L225 Difference]: With dead ends: 1098 [2021-11-25 20:13:57,385 INFO L226 Difference]: Without dead ends: 1098 [2021-11-25 20:13:57,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=194, Invalid=456, Unknown=0, NotChecked=0, Total=650 [2021-11-25 20:13:57,386 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 205 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:13:57,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 17 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:13:57,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2021-11-25 20:13:57,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 898. [2021-11-25 20:13:57,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 898 states, 896 states have (on average 3.3973214285714284) internal successors, (3044), 897 states have internal predecessors, (3044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:57,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 3044 transitions. [2021-11-25 20:13:57,432 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 3044 transitions. Word has length 15 [2021-11-25 20:13:57,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:13:57,433 INFO L470 AbstractCegarLoop]: Abstraction has 898 states and 3044 transitions. [2021-11-25 20:13:57,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:57,433 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 3044 transitions. [2021-11-25 20:13:57,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-25 20:13:57,436 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:57,436 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:13:57,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-25 20:13:57,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:13:57,654 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:13:57,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:57,655 INFO L85 PathProgramCache]: Analyzing trace with hash -2094448930, now seen corresponding path program 1 times [2021-11-25 20:13:57,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:57,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449224781] [2021-11-25 20:13:57,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:57,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:57,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:57,723 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:13:57,723 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:13:57,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449224781] [2021-11-25 20:13:57,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449224781] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:13:57,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184981808] [2021-11-25 20:13:57,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:57,725 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:13:57,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:13:57,725 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:13:57,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-25 20:13:57,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:57,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 20:13:57,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:13:57,884 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-25 20:13:57,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:13:57,983 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-25 20:13:57,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184981808] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:13:57,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [995489890] [2021-11-25 20:13:57,984 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 20:13:57,985 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:13:57,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 15 [2021-11-25 20:13:57,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588225157] [2021-11-25 20:13:57,986 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:13:57,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-25 20:13:57,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:13:57,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-25 20:13:57,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-11-25 20:13:57,987 INFO L87 Difference]: Start difference. First operand 898 states and 3044 transitions. Second operand has 17 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:58,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:13:58,227 INFO L93 Difference]: Finished difference Result 1048 states and 3429 transitions. [2021-11-25 20:13:58,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-25 20:13:58,228 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-25 20:13:58,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:13:58,238 INFO L225 Difference]: With dead ends: 1048 [2021-11-25 20:13:58,238 INFO L226 Difference]: Without dead ends: 1048 [2021-11-25 20:13:58,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=277, Invalid=593, Unknown=0, NotChecked=0, Total=870 [2021-11-25 20:13:58,239 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 219 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:13:58,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 16 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:13:58,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2021-11-25 20:13:58,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 571. [2021-11-25 20:13:58,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 570 states have (on average 3.4789473684210526) internal successors, (1983), 570 states have internal predecessors, (1983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:58,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 1983 transitions. [2021-11-25 20:13:58,268 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 1983 transitions. Word has length 27 [2021-11-25 20:13:58,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:13:58,269 INFO L470 AbstractCegarLoop]: Abstraction has 571 states and 1983 transitions. [2021-11-25 20:13:58,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:13:58,270 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 1983 transitions. [2021-11-25 20:13:58,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-25 20:13:58,272 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:58,272 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:13:58,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-25 20:13:58,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-11-25 20:13:58,492 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:13:58,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:58,493 INFO L85 PathProgramCache]: Analyzing trace with hash -517177115, now seen corresponding path program 1 times [2021-11-25 20:13:58,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:58,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925416304] [2021-11-25 20:13:58,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:58,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:58,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 20:13:58,520 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 20:13:58,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 20:13:58,544 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-25 20:13:58,548 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 20:13:58,548 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-25 20:13:58,548 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-25 20:13:58,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-25 20:13:58,549 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-25 20:13:58,549 WARN L234 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-25 20:13:58,549 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2021-11-25 20:13:58,563 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,563 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,564 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,564 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,564 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,564 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,564 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,564 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,564 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,565 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,565 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,565 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,565 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,565 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,565 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,565 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,566 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,566 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,566 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,566 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,566 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,566 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,566 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,567 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,567 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,567 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,567 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,567 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,567 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,567 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,567 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,568 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,568 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,568 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,568 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,568 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,568 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,568 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,569 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,569 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,569 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,569 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,569 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,570 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,570 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,570 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,570 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,570 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,570 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,570 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,571 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,571 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,571 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,571 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,571 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,571 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,571 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,578 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,579 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,579 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,579 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,579 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,579 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,579 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,580 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,580 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,580 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,580 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,580 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,580 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,580 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,581 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,581 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,581 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,581 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,581 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,581 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,581 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,582 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,582 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,582 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,583 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,583 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,583 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,583 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,583 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,583 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,583 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,584 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,584 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,584 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,584 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,584 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,584 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,584 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,589 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,589 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,589 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,590 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,590 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,590 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,590 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,591 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,591 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,591 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,591 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,591 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,591 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,591 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,591 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,592 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,592 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,592 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,592 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,592 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,592 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,592 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,593 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,593 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,593 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,593 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,593 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,593 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,593 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,594 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,594 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,594 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,594 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,594 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,594 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,594 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,594 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,595 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,595 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,595 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,595 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,595 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,595 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,595 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,596 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,597 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,597 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,597 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,597 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,597 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,598 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,598 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,598 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,598 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,598 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,599 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,599 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,599 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,599 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,599 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,600 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,600 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,600 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,600 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,600 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,601 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,601 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,601 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,601 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,601 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,602 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,602 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,602 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,602 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,602 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,603 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,603 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,603 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,603 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,603 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:13:58,605 INFO L148 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2021-11-25 20:13:58,606 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:13:58,607 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:13:58,607 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 20:13:58,608 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-25 20:13:58,608 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 106 places, 101 transitions, 300 flow [2021-11-25 20:13:58,609 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 106 places, 101 transitions, 300 flow [2021-11-25 20:13:58,609 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 101 transitions, 300 flow [2021-11-25 20:13:58,981 INFO L129 PetriNetUnfolder]: 472/2430 cut-off events. [2021-11-25 20:13:58,981 INFO L130 PetriNetUnfolder]: For 525/525 co-relation queries the response was YES. [2021-11-25 20:13:58,993 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2928 conditions, 2430 events. 472/2430 cut-off events. For 525/525 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 16324 event pairs, 201 based on Foata normal form. 0/2142 useless extension candidates. Maximal degree in co-relation 1473. Up to 448 conditions per place. [2021-11-25 20:13:59,037 INFO L116 LiptonReduction]: Number of co-enabled transitions 3920 [2021-11-25 20:14:00,747 INFO L131 LiptonReduction]: Checked pairs total: 6060 [2021-11-25 20:14:00,748 INFO L133 LiptonReduction]: Total number of compositions: 74 [2021-11-25 20:14:00,748 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 32 transitions, 162 flow [2021-11-25 20:14:00,820 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1402 states, 1393 states have (on average 3.996410624551328) internal successors, (5567), 1401 states have internal predecessors, (5567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:00,824 INFO L276 IsEmpty]: Start isEmpty. Operand has 1402 states, 1393 states have (on average 3.996410624551328) internal successors, (5567), 1401 states have internal predecessors, (5567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:00,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-25 20:14:00,824 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:00,824 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-25 20:14:00,824 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:14:00,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:00,825 INFO L85 PathProgramCache]: Analyzing trace with hash 36999, now seen corresponding path program 1 times [2021-11-25 20:14:00,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:00,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539688641] [2021-11-25 20:14:00,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:00,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:00,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:00,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:00,837 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:00,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539688641] [2021-11-25 20:14:00,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539688641] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:14:00,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:14:00,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:14:00,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346799413] [2021-11-25 20:14:00,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:14:00,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:14:00,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:00,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:14:00,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:14:00,843 INFO L87 Difference]: Start difference. First operand has 1402 states, 1393 states have (on average 3.996410624551328) internal successors, (5567), 1401 states have internal predecessors, (5567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:00,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:00,892 INFO L93 Difference]: Finished difference Result 1401 states and 5566 transitions. [2021-11-25 20:14:00,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:14:00,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-11-25 20:14:00,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:00,909 INFO L225 Difference]: With dead ends: 1401 [2021-11-25 20:14:00,909 INFO L226 Difference]: Without dead ends: 1401 [2021-11-25 20:14:00,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:14:00,911 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:00,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:14:00,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1401 states. [2021-11-25 20:14:00,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1401 to 1401. [2021-11-25 20:14:00,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1401 states, 1393 states have (on average 3.9956927494615937) internal successors, (5566), 1400 states have internal predecessors, (5566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:00,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1401 states to 1401 states and 5566 transitions. [2021-11-25 20:14:00,978 INFO L78 Accepts]: Start accepts. Automaton has 1401 states and 5566 transitions. Word has length 2 [2021-11-25 20:14:00,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:00,979 INFO L470 AbstractCegarLoop]: Abstraction has 1401 states and 5566 transitions. [2021-11-25 20:14:00,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:00,980 INFO L276 IsEmpty]: Start isEmpty. Operand 1401 states and 5566 transitions. [2021-11-25 20:14:00,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-25 20:14:00,980 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:00,980 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-25 20:14:00,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-25 20:14:00,980 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:14:00,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:00,981 INFO L85 PathProgramCache]: Analyzing trace with hash -142706284, now seen corresponding path program 1 times [2021-11-25 20:14:00,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:00,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986374939] [2021-11-25 20:14:00,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:00,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:00,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:00,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:14:00,999 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:00,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986374939] [2021-11-25 20:14:00,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986374939] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:14:00,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:14:01,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:14:01,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834662221] [2021-11-25 20:14:01,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:14:01,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:14:01,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:01,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:14:01,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:14:01,001 INFO L87 Difference]: Start difference. First operand 1401 states and 5566 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:01,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:01,033 INFO L93 Difference]: Finished difference Result 1394 states and 5531 transitions. [2021-11-25 20:14:01,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:14:01,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-25 20:14:01,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:01,050 INFO L225 Difference]: With dead ends: 1394 [2021-11-25 20:14:01,050 INFO L226 Difference]: Without dead ends: 1394 [2021-11-25 20:14:01,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:14:01,051 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 7 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:01,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 4 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:14:01,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2021-11-25 20:14:01,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1394. [2021-11-25 20:14:01,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1386 states have (on average 3.9906204906204907) internal successors, (5531), 1393 states have internal predecessors, (5531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:01,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 5531 transitions. [2021-11-25 20:14:01,108 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 5531 transitions. Word has length 6 [2021-11-25 20:14:01,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:01,108 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 5531 transitions. [2021-11-25 20:14:01,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:01,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 5531 transitions. [2021-11-25 20:14:01,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 20:14:01,109 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:01,109 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:01,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-25 20:14:01,111 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:14:01,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:01,112 INFO L85 PathProgramCache]: Analyzing trace with hash -125385246, now seen corresponding path program 1 times [2021-11-25 20:14:01,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:01,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550452071] [2021-11-25 20:14:01,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:01,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:01,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:01,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:01,137 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:01,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550452071] [2021-11-25 20:14:01,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550452071] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:14:01,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851621840] [2021-11-25 20:14:01,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:01,138 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:01,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:14:01,139 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:14:01,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-25 20:14:01,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:01,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-25 20:14:01,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:14:01,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:01,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:14:01,283 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:01,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851621840] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:14:01,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1659544156] [2021-11-25 20:14:01,284 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 20:14:01,285 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:14:01,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3, 3] total 8 [2021-11-25 20:14:01,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487635595] [2021-11-25 20:14:01,286 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:14:01,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 20:14:01,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:01,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 20:14:01,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-25 20:14:01,288 INFO L87 Difference]: Start difference. First operand 1394 states and 5531 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:01,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:01,420 INFO L93 Difference]: Finished difference Result 2047 states and 7666 transitions. [2021-11-25 20:14:01,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-25 20:14:01,421 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-25 20:14:01,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:01,442 INFO L225 Difference]: With dead ends: 2047 [2021-11-25 20:14:01,442 INFO L226 Difference]: Without dead ends: 2047 [2021-11-25 20:14:01,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-11-25 20:14:01,443 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 169 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:01,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 8 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:14:01,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2047 states. [2021-11-25 20:14:01,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2047 to 1802. [2021-11-25 20:14:01,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1802 states, 1796 states have (on average 3.85913140311804) internal successors, (6931), 1801 states have internal predecessors, (6931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:01,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1802 states to 1802 states and 6931 transitions. [2021-11-25 20:14:01,554 INFO L78 Accepts]: Start accepts. Automaton has 1802 states and 6931 transitions. Word has length 7 [2021-11-25 20:14:01,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:01,554 INFO L470 AbstractCegarLoop]: Abstraction has 1802 states and 6931 transitions. [2021-11-25 20:14:01,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:01,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1802 states and 6931 transitions. [2021-11-25 20:14:01,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-25 20:14:01,555 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:01,555 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:01,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-25 20:14:01,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:01,771 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:14:01,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:01,772 INFO L85 PathProgramCache]: Analyzing trace with hash -813758091, now seen corresponding path program 1 times [2021-11-25 20:14:01,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:01,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999110949] [2021-11-25 20:14:01,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:01,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:01,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:01,805 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:01,806 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:01,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999110949] [2021-11-25 20:14:01,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999110949] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:14:01,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069911629] [2021-11-25 20:14:01,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:01,807 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:01,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:14:01,808 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:14:01,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-25 20:14:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:01,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:14:01,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:14:01,935 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:01,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:14:01,989 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:01,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069911629] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:14:01,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [701207891] [2021-11-25 20:14:01,990 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 20:14:01,992 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:14:01,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2021-11-25 20:14:01,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368247420] [2021-11-25 20:14:01,992 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:14:01,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-25 20:14:01,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:01,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-25 20:14:01,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-11-25 20:14:01,993 INFO L87 Difference]: Start difference. First operand 1802 states and 6931 transitions. Second operand has 11 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:02,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:02,070 INFO L93 Difference]: Finished difference Result 1564 states and 5974 transitions. [2021-11-25 20:14:02,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-25 20:14:02,072 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-25 20:14:02,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:02,088 INFO L225 Difference]: With dead ends: 1564 [2021-11-25 20:14:02,088 INFO L226 Difference]: Without dead ends: 1564 [2021-11-25 20:14:02,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-11-25 20:14:02,089 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 97 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:02,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 9 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:14:02,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1564 states. [2021-11-25 20:14:02,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1564 to 1147. [2021-11-25 20:14:02,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1147 states, 1146 states have (on average 3.9642233856893543) internal successors, (4543), 1146 states have internal predecessors, (4543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:02,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 4543 transitions. [2021-11-25 20:14:02,136 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 4543 transitions. Word has length 15 [2021-11-25 20:14:02,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:02,136 INFO L470 AbstractCegarLoop]: Abstraction has 1147 states and 4543 transitions. [2021-11-25 20:14:02,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:02,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 4543 transitions. [2021-11-25 20:14:02,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-25 20:14:02,140 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:02,140 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:02,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-25 20:14:02,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:02,356 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:14:02,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:02,357 INFO L85 PathProgramCache]: Analyzing trace with hash 655513361, now seen corresponding path program 1 times [2021-11-25 20:14:02,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:02,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571762861] [2021-11-25 20:14:02,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:02,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:02,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 20:14:02,371 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 20:14:02,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 20:14:02,390 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-25 20:14:02,390 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 20:14:02,390 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-25 20:14:02,391 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-25 20:14:02,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-25 20:14:02,391 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-25 20:14:02,391 WARN L234 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-25 20:14:02,392 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2021-11-25 20:14:02,402 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,402 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,402 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,402 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,403 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,403 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,403 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,403 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,403 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,403 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,403 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,403 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,404 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,404 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,404 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,404 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,404 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,404 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,404 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,405 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,405 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,405 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,405 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,405 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,405 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,405 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,406 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,406 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,406 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,406 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,406 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,406 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,406 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,406 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,407 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,407 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,407 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,407 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,407 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,407 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,407 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,408 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,408 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,408 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,408 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,408 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,408 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,408 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,409 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,409 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,409 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,409 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,409 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,409 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,409 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,409 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,410 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,410 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,410 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,410 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,410 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,410 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,410 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,411 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,411 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,411 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,411 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,411 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,411 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,412 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,412 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,412 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,412 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,412 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,412 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,412 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,413 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,413 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,413 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,413 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,413 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,413 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,413 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,413 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,414 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,414 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,414 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,414 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,414 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,414 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,414 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,415 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,415 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,415 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,415 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,415 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,415 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,415 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,415 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,416 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,416 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,416 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,416 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,416 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,416 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,416 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,416 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,417 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,417 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,417 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,417 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,417 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,417 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,417 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,418 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,418 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,418 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,418 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,418 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,418 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,418 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,418 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,419 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,419 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,419 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,419 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,419 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,419 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,419 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,419 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,420 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,420 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,420 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,420 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,420 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,420 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,420 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,421 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,421 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,421 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,421 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,421 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,421 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,421 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,421 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,422 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,422 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,422 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,422 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,422 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,422 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,422 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,423 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,423 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,423 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,423 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,423 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,423 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,423 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,423 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,424 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,424 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,424 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,424 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,424 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,425 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,425 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,425 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,425 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,425 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,426 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,426 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,426 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,426 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,426 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,427 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,427 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,427 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,427 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,427 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,428 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,428 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,428 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,428 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,428 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,429 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,429 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,429 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,429 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,429 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,430 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,430 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,430 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,430 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,430 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,430 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,431 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,431 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,431 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,431 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:02,433 INFO L148 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2021-11-25 20:14:02,434 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:14:02,434 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:14:02,434 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 20:14:02,436 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-25 20:14:02,436 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 108 transitions, 336 flow [2021-11-25 20:14:02,436 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 114 places, 108 transitions, 336 flow [2021-11-25 20:14:02,436 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 114 places, 108 transitions, 336 flow [2021-11-25 20:14:03,301 INFO L129 PetriNetUnfolder]: 1051/4821 cut-off events. [2021-11-25 20:14:03,301 INFO L130 PetriNetUnfolder]: For 1136/1136 co-relation queries the response was YES. [2021-11-25 20:14:03,319 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5906 conditions, 4821 events. 1051/4821 cut-off events. For 1136/1136 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 38849 event pairs, 522 based on Foata normal form. 0/4273 useless extension candidates. Maximal degree in co-relation 2913. Up to 1024 conditions per place. [2021-11-25 20:14:03,412 INFO L116 LiptonReduction]: Number of co-enabled transitions 4800 [2021-11-25 20:14:05,199 INFO L131 LiptonReduction]: Checked pairs total: 7070 [2021-11-25 20:14:05,199 INFO L133 LiptonReduction]: Total number of compositions: 78 [2021-11-25 20:14:05,200 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 35 transitions, 190 flow [2021-11-25 20:14:05,379 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2810 states, 2800 states have (on average 4.479642857142857) internal successors, (12543), 2809 states have internal predecessors, (12543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:05,386 INFO L276 IsEmpty]: Start isEmpty. Operand has 2810 states, 2800 states have (on average 4.479642857142857) internal successors, (12543), 2809 states have internal predecessors, (12543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:05,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-25 20:14:05,387 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:05,387 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-25 20:14:05,387 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:14:05,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:05,388 INFO L85 PathProgramCache]: Analyzing trace with hash 43183, now seen corresponding path program 1 times [2021-11-25 20:14:05,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:05,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461495647] [2021-11-25 20:14:05,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:05,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:05,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:05,402 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:05,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461495647] [2021-11-25 20:14:05,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461495647] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:14:05,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:14:05,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:14:05,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478247526] [2021-11-25 20:14:05,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:14:05,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:14:05,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:05,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:14:05,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:14:05,411 INFO L87 Difference]: Start difference. First operand has 2810 states, 2800 states have (on average 4.479642857142857) internal successors, (12543), 2809 states have internal predecessors, (12543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:05,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:05,470 INFO L93 Difference]: Finished difference Result 2809 states and 12542 transitions. [2021-11-25 20:14:05,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:14:05,471 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-11-25 20:14:05,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:05,512 INFO L225 Difference]: With dead ends: 2809 [2021-11-25 20:14:05,513 INFO L226 Difference]: Without dead ends: 2809 [2021-11-25 20:14:05,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:14:05,514 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:05,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:14:05,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2809 states. [2021-11-25 20:14:05,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2809 to 2809. [2021-11-25 20:14:05,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2809 states, 2800 states have (on average 4.479285714285714) internal successors, (12542), 2808 states have internal predecessors, (12542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:05,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2809 states to 2809 states and 12542 transitions. [2021-11-25 20:14:05,703 INFO L78 Accepts]: Start accepts. Automaton has 2809 states and 12542 transitions. Word has length 2 [2021-11-25 20:14:05,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:05,703 INFO L470 AbstractCegarLoop]: Abstraction has 2809 states and 12542 transitions. [2021-11-25 20:14:05,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:05,703 INFO L276 IsEmpty]: Start isEmpty. Operand 2809 states and 12542 transitions. [2021-11-25 20:14:05,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-25 20:14:05,704 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:05,752 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-25 20:14:05,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-25 20:14:05,752 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:14:05,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:05,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1249579925, now seen corresponding path program 1 times [2021-11-25 20:14:05,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:05,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146933694] [2021-11-25 20:14:05,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:05,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:05,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:05,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:14:05,775 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:05,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146933694] [2021-11-25 20:14:05,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146933694] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:14:05,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:14:05,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:14:05,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705902363] [2021-11-25 20:14:05,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:14:05,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:14:05,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:05,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:14:05,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:14:05,777 INFO L87 Difference]: Start difference. First operand 2809 states and 12542 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:05,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:05,823 INFO L93 Difference]: Finished difference Result 2801 states and 12498 transitions. [2021-11-25 20:14:05,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:14:05,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-25 20:14:05,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:05,841 INFO L225 Difference]: With dead ends: 2801 [2021-11-25 20:14:05,841 INFO L226 Difference]: Without dead ends: 2801 [2021-11-25 20:14:05,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:14:05,842 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 8 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:05,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 4 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:14:05,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2801 states. [2021-11-25 20:14:05,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2801 to 2801. [2021-11-25 20:14:05,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2801 states, 2792 states have (on average 4.476361031518625) internal successors, (12498), 2800 states have internal predecessors, (12498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:05,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2801 states to 2801 states and 12498 transitions. [2021-11-25 20:14:05,951 INFO L78 Accepts]: Start accepts. Automaton has 2801 states and 12498 transitions. Word has length 6 [2021-11-25 20:14:05,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:05,951 INFO L470 AbstractCegarLoop]: Abstraction has 2801 states and 12498 transitions. [2021-11-25 20:14:05,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:05,951 INFO L276 IsEmpty]: Start isEmpty. Operand 2801 states and 12498 transitions. [2021-11-25 20:14:05,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 20:14:05,952 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:05,952 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:05,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-25 20:14:05,952 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:14:05,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:05,953 INFO L85 PathProgramCache]: Analyzing trace with hash 85973101, now seen corresponding path program 1 times [2021-11-25 20:14:05,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:05,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231598090] [2021-11-25 20:14:05,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:05,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:05,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:05,970 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:05,971 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:05,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231598090] [2021-11-25 20:14:05,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231598090] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:14:05,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [101064953] [2021-11-25 20:14:05,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:05,972 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:05,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:14:05,976 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:14:05,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-25 20:14:06,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:06,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-25 20:14:06,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:14:06,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:06,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:14:06,141 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:06,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [101064953] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:14:06,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [880257275] [2021-11-25 20:14:06,142 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 20:14:06,143 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:14:06,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3, 3] total 8 [2021-11-25 20:14:06,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363533729] [2021-11-25 20:14:06,144 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:14:06,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 20:14:06,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:06,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 20:14:06,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-25 20:14:06,145 INFO L87 Difference]: Start difference. First operand 2801 states and 12498 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:06,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:06,296 INFO L93 Difference]: Finished difference Result 4152 states and 17593 transitions. [2021-11-25 20:14:06,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-25 20:14:06,297 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-25 20:14:06,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:06,378 INFO L225 Difference]: With dead ends: 4152 [2021-11-25 20:14:06,378 INFO L226 Difference]: Without dead ends: 4152 [2021-11-25 20:14:06,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-11-25 20:14:06,379 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 184 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:06,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 7 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:14:06,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4152 states. [2021-11-25 20:14:06,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4152 to 3652. [2021-11-25 20:14:06,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3652 states, 3645 states have (on average 4.3465020576131685) internal successors, (15843), 3651 states have internal predecessors, (15843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:06,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3652 states to 3652 states and 15843 transitions. [2021-11-25 20:14:06,528 INFO L78 Accepts]: Start accepts. Automaton has 3652 states and 15843 transitions. Word has length 7 [2021-11-25 20:14:06,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:06,528 INFO L470 AbstractCegarLoop]: Abstraction has 3652 states and 15843 transitions. [2021-11-25 20:14:06,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:06,528 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 15843 transitions. [2021-11-25 20:14:06,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-25 20:14:06,529 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:06,529 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:06,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-25 20:14:06,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-11-25 20:14:06,756 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:14:06,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:06,757 INFO L85 PathProgramCache]: Analyzing trace with hash -822367698, now seen corresponding path program 1 times [2021-11-25 20:14:06,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:06,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185227062] [2021-11-25 20:14:06,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:06,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:06,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:06,790 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:06,790 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:06,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185227062] [2021-11-25 20:14:06,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185227062] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:14:06,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518956865] [2021-11-25 20:14:06,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:06,791 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:06,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:14:06,792 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:14:06,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-25 20:14:06,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:06,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-25 20:14:06,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:14:06,950 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 20:14:06,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:14:07,013 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 20:14:07,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518956865] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:14:07,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1715911729] [2021-11-25 20:14:07,014 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 20:14:07,014 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:14:07,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 11 [2021-11-25 20:14:07,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290388094] [2021-11-25 20:14:07,016 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:14:07,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-25 20:14:07,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:07,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-25 20:14:07,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2021-11-25 20:14:07,017 INFO L87 Difference]: Start difference. First operand 3652 states and 15843 transitions. Second operand has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:07,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:07,344 INFO L93 Difference]: Finished difference Result 4902 states and 20626 transitions. [2021-11-25 20:14:07,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-25 20:14:07,345 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-25 20:14:07,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:07,373 INFO L225 Difference]: With dead ends: 4902 [2021-11-25 20:14:07,373 INFO L226 Difference]: Without dead ends: 4902 [2021-11-25 20:14:07,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=194, Invalid=456, Unknown=0, NotChecked=0, Total=650 [2021-11-25 20:14:07,374 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 305 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:07,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 13 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:14:07,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4902 states. [2021-11-25 20:14:07,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4902 to 3986. [2021-11-25 20:14:07,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3986 states, 3982 states have (on average 4.36815670517328) internal successors, (17394), 3985 states have internal predecessors, (17394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:07,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3986 states to 3986 states and 17394 transitions. [2021-11-25 20:14:07,565 INFO L78 Accepts]: Start accepts. Automaton has 3986 states and 17394 transitions. Word has length 15 [2021-11-25 20:14:07,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:07,566 INFO L470 AbstractCegarLoop]: Abstraction has 3986 states and 17394 transitions. [2021-11-25 20:14:07,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:07,566 INFO L276 IsEmpty]: Start isEmpty. Operand 3986 states and 17394 transitions. [2021-11-25 20:14:07,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-25 20:14:07,569 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:07,569 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:07,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-25 20:14:07,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-11-25 20:14:07,792 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:14:07,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:07,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1691468589, now seen corresponding path program 1 times [2021-11-25 20:14:07,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:07,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423930407] [2021-11-25 20:14:07,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:07,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:07,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:07,864 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:07,864 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:07,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423930407] [2021-11-25 20:14:07,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423930407] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:14:07,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874767398] [2021-11-25 20:14:07,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:07,865 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:07,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:14:07,868 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:14:07,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-25 20:14:07,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:08,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 20:14:08,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:14:08,073 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-25 20:14:08,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:14:08,164 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-25 20:14:08,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874767398] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:14:08,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1727996920] [2021-11-25 20:14:08,165 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 20:14:08,166 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:14:08,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 15 [2021-11-25 20:14:08,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797074921] [2021-11-25 20:14:08,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:14:08,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-25 20:14:08,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:08,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-25 20:14:08,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-11-25 20:14:08,168 INFO L87 Difference]: Start difference. First operand 3986 states and 17394 transitions. Second operand has 17 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:08,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:08,501 INFO L93 Difference]: Finished difference Result 4592 states and 19475 transitions. [2021-11-25 20:14:08,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-25 20:14:08,502 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-25 20:14:08,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:08,528 INFO L225 Difference]: With dead ends: 4592 [2021-11-25 20:14:08,529 INFO L226 Difference]: Without dead ends: 4592 [2021-11-25 20:14:08,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=342, Invalid=780, Unknown=0, NotChecked=0, Total=1122 [2021-11-25 20:14:08,530 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 487 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:08,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [487 Valid, 21 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 20:14:08,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4592 states. [2021-11-25 20:14:08,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4592 to 2299. [2021-11-25 20:14:08,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2299 states, 2298 states have (on average 4.455613577023499) internal successors, (10239), 2298 states have internal predecessors, (10239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:08,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 10239 transitions. [2021-11-25 20:14:08,726 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 10239 transitions. Word has length 27 [2021-11-25 20:14:08,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:08,727 INFO L470 AbstractCegarLoop]: Abstraction has 2299 states and 10239 transitions. [2021-11-25 20:14:08,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:08,727 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 10239 transitions. [2021-11-25 20:14:08,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-25 20:14:08,733 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:08,733 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:08,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-25 20:14:08,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:08,960 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:14:08,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:08,961 INFO L85 PathProgramCache]: Analyzing trace with hash -591820522, now seen corresponding path program 1 times [2021-11-25 20:14:08,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:08,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721361089] [2021-11-25 20:14:08,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:08,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:08,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 20:14:08,971 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 20:14:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 20:14:08,988 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-25 20:14:08,988 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 20:14:08,988 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-25 20:14:08,989 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-25 20:14:08,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-25 20:14:08,989 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-25 20:14:08,989 WARN L234 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-25 20:14:08,989 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2021-11-25 20:14:09,001 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,002 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,002 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,002 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,002 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,002 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,002 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,002 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,003 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,003 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,003 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,003 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,003 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,003 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,003 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,004 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,004 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,004 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,004 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,004 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,004 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,004 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,005 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,005 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,005 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,005 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,005 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,005 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,005 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,005 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,006 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,006 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,006 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,006 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,006 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,006 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,006 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,007 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,007 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,007 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,007 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,007 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,007 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,007 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,008 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,008 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,008 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,008 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,008 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,008 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,008 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,008 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,009 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,009 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,009 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,009 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,009 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,009 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,009 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,010 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,010 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,010 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,010 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,010 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,010 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,010 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,011 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,011 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,011 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,011 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,011 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,011 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,011 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,011 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,012 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,012 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,012 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,012 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,012 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,012 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,012 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,013 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,013 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,013 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,013 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,013 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,013 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,013 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,013 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,014 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,014 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,014 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,014 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,014 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,014 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,014 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,015 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,015 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,015 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,015 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,015 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,015 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,015 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,016 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,016 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,016 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,016 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,016 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,016 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,016 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,016 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,017 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,017 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,017 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,017 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,017 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,017 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,017 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,018 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,018 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,018 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,018 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,018 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,018 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,018 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,018 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,019 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,019 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,019 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,019 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,019 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,019 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,019 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,019 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,020 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,020 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,020 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,020 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,020 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,020 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,021 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,021 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,021 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,021 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,021 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,021 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,021 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,021 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,022 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,022 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,022 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,022 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,022 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,022 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,022 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,022 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,023 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,023 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,023 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,023 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,023 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,023 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,023 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,024 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,024 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,024 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,024 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,024 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,024 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,024 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,025 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,025 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,025 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,025 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,025 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,025 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,025 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,025 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,026 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,026 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,026 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,026 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,026 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,027 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,027 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,027 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,027 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,027 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,028 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,028 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,028 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,028 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,028 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,029 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,029 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,029 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,029 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,029 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,029 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,030 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,030 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,030 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,030 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,030 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,031 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,031 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,031 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,031 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,031 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,031 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,032 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,032 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,032 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,032 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,032 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,033 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,033 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,033 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,033 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,033 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,034 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,034 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,034 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,034 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,034 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:09,036 INFO L148 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2021-11-25 20:14:09,037 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:14:09,037 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:14:09,038 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 20:14:09,039 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-25 20:14:09,039 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 122 places, 115 transitions, 374 flow [2021-11-25 20:14:09,039 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 122 places, 115 transitions, 374 flow [2021-11-25 20:14:09,040 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 122 places, 115 transitions, 374 flow [2021-11-25 20:14:10,565 INFO L129 PetriNetUnfolder]: 2334/9708 cut-off events. [2021-11-25 20:14:10,565 INFO L130 PetriNetUnfolder]: For 2460/2460 co-relation queries the response was YES. [2021-11-25 20:14:10,727 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12085 conditions, 9708 events. 2334/9708 cut-off events. For 2460/2460 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 91119 event pairs, 1291 based on Foata normal form. 0/8644 useless extension candidates. Maximal degree in co-relation 5891. Up to 2304 conditions per place. [2021-11-25 20:14:10,945 INFO L116 LiptonReduction]: Number of co-enabled transitions 5760 [2021-11-25 20:14:12,876 INFO L131 LiptonReduction]: Checked pairs total: 10747 [2021-11-25 20:14:12,876 INFO L133 LiptonReduction]: Total number of compositions: 82 [2021-11-25 20:14:12,877 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 48 places, 38 transitions, 220 flow [2021-11-25 20:14:13,140 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5626 states, 5615 states have (on average 4.969367764915405) internal successors, (27903), 5625 states have internal predecessors, (27903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:13,153 INFO L276 IsEmpty]: Start isEmpty. Operand has 5626 states, 5615 states have (on average 4.969367764915405) internal successors, (27903), 5625 states have internal predecessors, (27903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:13,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-25 20:14:13,153 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:13,153 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-25 20:14:13,153 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:14:13,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:13,154 INFO L85 PathProgramCache]: Analyzing trace with hash 49699, now seen corresponding path program 1 times [2021-11-25 20:14:13,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:13,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139211552] [2021-11-25 20:14:13,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:13,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:13,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:13,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:13,167 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:13,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139211552] [2021-11-25 20:14:13,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139211552] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:14:13,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:14:13,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:14:13,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831233318] [2021-11-25 20:14:13,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:14:13,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:14:13,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:13,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:14:13,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:14:13,181 INFO L87 Difference]: Start difference. First operand has 5626 states, 5615 states have (on average 4.969367764915405) internal successors, (27903), 5625 states have internal predecessors, (27903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:13,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:13,260 INFO L93 Difference]: Finished difference Result 5616 states and 27848 transitions. [2021-11-25 20:14:13,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:14:13,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-11-25 20:14:13,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:13,290 INFO L225 Difference]: With dead ends: 5616 [2021-11-25 20:14:13,290 INFO L226 Difference]: Without dead ends: 5616 [2021-11-25 20:14:13,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:14:13,291 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 13 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:13,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 4 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:14:13,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5616 states. [2021-11-25 20:14:13,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5616 to 5616. [2021-11-25 20:14:13,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5616 states, 5606 states have (on average 4.967534784159829) internal successors, (27848), 5615 states have internal predecessors, (27848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:13,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5616 states to 5616 states and 27848 transitions. [2021-11-25 20:14:13,499 INFO L78 Accepts]: Start accepts. Automaton has 5616 states and 27848 transitions. Word has length 2 [2021-11-25 20:14:13,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:13,499 INFO L470 AbstractCegarLoop]: Abstraction has 5616 states and 27848 transitions. [2021-11-25 20:14:13,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:13,499 INFO L276 IsEmpty]: Start isEmpty. Operand 5616 states and 27848 transitions. [2021-11-25 20:14:13,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 20:14:13,499 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:13,500 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:13,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-11-25 20:14:13,500 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:14:13,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:13,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1096605118, now seen corresponding path program 1 times [2021-11-25 20:14:13,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:13,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141143282] [2021-11-25 20:14:13,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:13,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:13,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:13,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:13,540 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:13,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141143282] [2021-11-25 20:14:13,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141143282] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:14:13,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183176782] [2021-11-25 20:14:13,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:13,540 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:13,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:14:13,541 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:14:13,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-25 20:14:13,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:13,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-25 20:14:13,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:14:13,692 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:13,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:14:13,721 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:13,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183176782] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:14:13,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1051685444] [2021-11-25 20:14:13,722 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 20:14:13,723 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:14:13,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2021-11-25 20:14:13,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921340299] [2021-11-25 20:14:13,725 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:14:13,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 20:14:13,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:13,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 20:14:13,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-25 20:14:13,726 INFO L87 Difference]: Start difference. First operand 5616 states and 27848 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:13,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:13,878 INFO L93 Difference]: Finished difference Result 8372 states and 39612 transitions. [2021-11-25 20:14:13,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 20:14:13,879 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-25 20:14:13,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:13,926 INFO L225 Difference]: With dead ends: 8372 [2021-11-25 20:14:13,926 INFO L226 Difference]: Without dead ends: 8372 [2021-11-25 20:14:13,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2021-11-25 20:14:13,927 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 182 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:13,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 6 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:14:13,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8372 states. [2021-11-25 20:14:14,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8372 to 7360. [2021-11-25 20:14:14,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7360 states, 7351 states have (on average 4.838525370697864) internal successors, (35568), 7359 states have internal predecessors, (35568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:14,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7360 states to 7360 states and 35568 transitions. [2021-11-25 20:14:14,342 INFO L78 Accepts]: Start accepts. Automaton has 7360 states and 35568 transitions. Word has length 7 [2021-11-25 20:14:14,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:14,343 INFO L470 AbstractCegarLoop]: Abstraction has 7360 states and 35568 transitions. [2021-11-25 20:14:14,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:14,343 INFO L276 IsEmpty]: Start isEmpty. Operand 7360 states and 35568 transitions. [2021-11-25 20:14:14,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-25 20:14:14,344 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:14,344 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2021-11-25 20:14:14,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-25 20:14:14,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-11-25 20:14:14,560 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:14:14,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:14,561 INFO L85 PathProgramCache]: Analyzing trace with hash -2075703836, now seen corresponding path program 1 times [2021-11-25 20:14:14,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:14,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188201853] [2021-11-25 20:14:14,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:14,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:14,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:14,709 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:14,710 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:14,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188201853] [2021-11-25 20:14:14,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188201853] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:14:14,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337037531] [2021-11-25 20:14:14,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:14,711 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:14,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:14:14,712 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:14:14,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-25 20:14:14,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:14,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-25 20:14:14,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:14:14,898 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:14,898 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:14:14,954 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:14,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337037531] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:14:14,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [563041958] [2021-11-25 20:14:14,955 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 20:14:14,956 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:14:14,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4] total 10 [2021-11-25 20:14:14,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541702968] [2021-11-25 20:14:14,957 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:14:14,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-25 20:14:14,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:14,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-25 20:14:14,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-11-25 20:14:14,959 INFO L87 Difference]: Start difference. First operand 7360 states and 35568 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:15,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:15,253 INFO L93 Difference]: Finished difference Result 10046 states and 47085 transitions. [2021-11-25 20:14:15,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-25 20:14:15,254 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-25 20:14:15,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:15,295 INFO L225 Difference]: With dead ends: 10046 [2021-11-25 20:14:15,295 INFO L226 Difference]: Without dead ends: 10046 [2021-11-25 20:14:15,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=150, Invalid=356, Unknown=0, NotChecked=0, Total=506 [2021-11-25 20:14:15,296 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 205 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:15,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 17 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:14:15,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10046 states. [2021-11-25 20:14:15,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10046 to 8158. [2021-11-25 20:14:15,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8158 states, 8152 states have (on average 4.852428851815505) internal successors, (39557), 8157 states have internal predecessors, (39557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:15,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8158 states to 8158 states and 39557 transitions. [2021-11-25 20:14:15,608 INFO L78 Accepts]: Start accepts. Automaton has 8158 states and 39557 transitions. Word has length 11 [2021-11-25 20:14:15,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:15,608 INFO L470 AbstractCegarLoop]: Abstraction has 8158 states and 39557 transitions. [2021-11-25 20:14:15,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:15,609 INFO L276 IsEmpty]: Start isEmpty. Operand 8158 states and 39557 transitions. [2021-11-25 20:14:15,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-25 20:14:15,610 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:15,610 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:15,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-25 20:14:15,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:15,836 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:14:15,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:15,837 INFO L85 PathProgramCache]: Analyzing trace with hash 343373856, now seen corresponding path program 1 times [2021-11-25 20:14:15,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:15,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532684141] [2021-11-25 20:14:15,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:15,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:15,902 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:15,902 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:15,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532684141] [2021-11-25 20:14:15,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532684141] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:14:15,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180182377] [2021-11-25 20:14:15,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:15,903 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:15,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:14:15,904 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:14:15,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-25 20:14:16,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:16,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 20:14:16,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:14:16,117 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-25 20:14:16,117 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:14:16,213 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-25 20:14:16,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1180182377] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:14:16,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1498359120] [2021-11-25 20:14:16,214 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 20:14:16,215 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:14:16,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 14 [2021-11-25 20:14:16,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954179280] [2021-11-25 20:14:16,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:14:16,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-25 20:14:16,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:16,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-25 20:14:16,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2021-11-25 20:14:16,217 INFO L87 Difference]: Start difference. First operand 8158 states and 39557 transitions. Second operand has 16 states, 15 states have (on average 3.6) internal successors, (54), 15 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:16,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:16,775 INFO L93 Difference]: Finished difference Result 10120 states and 48080 transitions. [2021-11-25 20:14:16,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-25 20:14:16,776 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.6) internal successors, (54), 15 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-25 20:14:16,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:16,808 INFO L225 Difference]: With dead ends: 10120 [2021-11-25 20:14:16,808 INFO L226 Difference]: Without dead ends: 10120 [2021-11-25 20:14:16,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=796, Unknown=0, NotChecked=0, Total=1122 [2021-11-25 20:14:16,809 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 481 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:16,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [481 Valid, 24 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 20:14:16,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10120 states. [2021-11-25 20:14:17,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10120 to 8026. [2021-11-25 20:14:17,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8026 states, 8024 states have (on average 4.897931206380857) internal successors, (39301), 8025 states have internal predecessors, (39301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:17,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8026 states to 8026 states and 39301 transitions. [2021-11-25 20:14:17,174 INFO L78 Accepts]: Start accepts. Automaton has 8026 states and 39301 transitions. Word has length 23 [2021-11-25 20:14:17,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:17,174 INFO L470 AbstractCegarLoop]: Abstraction has 8026 states and 39301 transitions. [2021-11-25 20:14:17,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.6) internal successors, (54), 15 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:17,175 INFO L276 IsEmpty]: Start isEmpty. Operand 8026 states and 39301 transitions. [2021-11-25 20:14:17,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-25 20:14:17,198 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:17,198 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:17,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-11-25 20:14:17,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2021-11-25 20:14:17,418 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:14:17,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:17,419 INFO L85 PathProgramCache]: Analyzing trace with hash -559349503, now seen corresponding path program 1 times [2021-11-25 20:14:17,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:17,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478558706] [2021-11-25 20:14:17,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:17,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:17,536 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:17,536 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:17,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478558706] [2021-11-25 20:14:17,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478558706] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:14:17,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234087968] [2021-11-25 20:14:17,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:17,538 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:17,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:14:17,545 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:14:17,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-25 20:14:17,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:17,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-25 20:14:17,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:14:17,802 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-25 20:14:17,802 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:14:17,947 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-25 20:14:17,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1234087968] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:14:17,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [807981301] [2021-11-25 20:14:17,947 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 20:14:17,948 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:14:17,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6] total 19 [2021-11-25 20:14:17,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429211544] [2021-11-25 20:14:17,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:14:17,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-25 20:14:17,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:17,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-25 20:14:17,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=274, Unknown=0, NotChecked=0, Total=420 [2021-11-25 20:14:17,949 INFO L87 Difference]: Start difference. First operand 8026 states and 39301 transitions. Second operand has 21 states, 20 states have (on average 4.0) internal successors, (80), 20 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:18,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:18,401 INFO L93 Difference]: Finished difference Result 9608 states and 45828 transitions. [2021-11-25 20:14:18,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-25 20:14:18,402 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 4.0) internal successors, (80), 20 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-25 20:14:18,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:18,437 INFO L225 Difference]: With dead ends: 9608 [2021-11-25 20:14:18,438 INFO L226 Difference]: Without dead ends: 9608 [2021-11-25 20:14:18,438 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=472, Invalid=1010, Unknown=0, NotChecked=0, Total=1482 [2021-11-25 20:14:18,439 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 525 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:18,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [525 Valid, 19 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 20:14:18,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9608 states. [2021-11-25 20:14:18,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9608 to 4603. [2021-11-25 20:14:18,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4603 states, 4602 states have (on average 4.950673620165146) internal successors, (22783), 4602 states have internal predecessors, (22783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:18,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4603 states to 4603 states and 22783 transitions. [2021-11-25 20:14:18,838 INFO L78 Accepts]: Start accepts. Automaton has 4603 states and 22783 transitions. Word has length 39 [2021-11-25 20:14:18,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:18,838 INFO L470 AbstractCegarLoop]: Abstraction has 4603 states and 22783 transitions. [2021-11-25 20:14:18,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 4.0) internal successors, (80), 20 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:18,839 INFO L276 IsEmpty]: Start isEmpty. Operand 4603 states and 22783 transitions. [2021-11-25 20:14:18,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-25 20:14:18,847 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:18,848 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:18,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-11-25 20:14:19,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2021-11-25 20:14:19,060 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:14:19,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:19,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1103562257, now seen corresponding path program 1 times [2021-11-25 20:14:19,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:19,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441610156] [2021-11-25 20:14:19,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:19,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:19,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 20:14:19,081 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 20:14:19,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 20:14:19,104 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-25 20:14:19,104 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 20:14:19,104 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-25 20:14:19,104 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-25 20:14:19,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-11-25 20:14:19,105 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-25 20:14:19,105 WARN L234 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-25 20:14:19,105 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2021-11-25 20:14:19,118 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,118 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,118 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,118 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,118 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,118 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,119 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,119 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,119 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,119 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,119 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,119 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,119 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,120 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,120 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,120 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,120 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,120 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,121 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,121 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,121 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,121 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,121 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,121 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,121 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,122 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,122 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,122 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,122 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,122 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,122 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,122 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,122 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,123 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,123 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,123 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,123 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,123 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,123 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,123 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,124 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,124 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,124 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,124 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,124 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,124 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,124 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,124 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,125 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,125 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,125 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,125 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,125 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,125 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,125 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,126 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,126 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,126 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,126 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,126 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,126 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,126 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,126 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,127 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,127 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,127 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,127 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,127 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,127 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,127 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,127 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,128 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,128 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,128 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,128 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,128 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,128 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,128 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,129 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,129 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,129 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,129 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,129 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,129 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,129 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,129 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,130 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,130 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,130 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,130 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,130 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,130 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,130 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,130 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,131 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,131 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,131 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,131 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,131 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,131 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,131 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,132 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,132 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,132 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,132 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,132 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,132 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,132 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,133 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,133 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,133 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,133 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,133 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,133 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,133 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,133 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,134 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,134 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,134 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,134 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,134 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,134 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,134 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,134 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,135 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,135 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,135 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,135 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,135 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,135 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,135 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,135 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,135 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,136 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,136 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,136 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,136 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,136 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,136 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,136 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,136 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,136 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,136 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,136 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,136 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,136 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,136 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,136 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,137 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,137 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,137 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,137 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,137 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,137 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,137 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,137 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,137 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,137 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,137 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,137 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,137 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,137 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,137 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,137 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,137 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,138 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,138 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,138 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,138 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,138 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,138 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,138 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,138 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,138 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,138 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,138 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,138 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,138 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,138 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,138 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,139 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,139 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,139 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,139 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,140 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,140 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,140 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,140 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,140 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,140 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,140 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,141 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,141 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,141 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,141 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,141 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,141 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,141 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,141 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,142 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,142 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,142 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,142 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,142 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,142 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,142 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,143 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,143 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,143 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,143 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,143 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,143 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,144 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,144 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,144 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,144 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,144 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,145 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,145 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,145 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,145 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,145 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,146 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,146 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,146 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,146 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,146 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,146 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,147 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,147 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,147 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,147 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,147 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,148 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,148 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,148 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,148 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,148 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,148 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,149 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,149 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,149 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,149 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,149 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,150 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,150 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,150 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,150 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,150 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,150 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:19,152 INFO L148 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2021-11-25 20:14:19,153 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:14:19,154 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:14:19,154 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 20:14:19,155 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-25 20:14:19,155 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 130 places, 122 transitions, 414 flow [2021-11-25 20:14:19,156 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 130 places, 122 transitions, 414 flow [2021-11-25 20:14:19,156 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 130 places, 122 transitions, 414 flow [2021-11-25 20:14:22,478 INFO L129 PetriNetUnfolder]: 5153/19715 cut-off events. [2021-11-25 20:14:22,478 INFO L130 PetriNetUnfolder]: For 5330/5330 co-relation queries the response was YES. [2021-11-25 20:14:22,589 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24921 conditions, 19715 events. 5153/19715 cut-off events. For 5330/5330 co-relation queries the response was YES. Maximal size of possible extension queue 390. Compared 207422 event pairs, 3084 based on Foata normal form. 0/17623 useless extension candidates. Maximal degree in co-relation 12070. Up to 5120 conditions per place. [2021-11-25 20:14:22,949 INFO L116 LiptonReduction]: Number of co-enabled transitions 6800 [2021-11-25 20:14:24,957 INFO L131 LiptonReduction]: Checked pairs total: 11854 [2021-11-25 20:14:24,957 INFO L133 LiptonReduction]: Total number of compositions: 86 [2021-11-25 20:14:24,958 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 52 places, 41 transitions, 252 flow [2021-11-25 20:14:25,403 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 11258 states, 11246 states have (on average 5.463186910901654) internal successors, (61439), 11257 states have internal predecessors, (61439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:25,429 INFO L276 IsEmpty]: Start isEmpty. Operand has 11258 states, 11246 states have (on average 5.463186910901654) internal successors, (61439), 11257 states have internal predecessors, (61439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:25,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-25 20:14:25,429 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:25,429 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-25 20:14:25,430 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:14:25,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:25,430 INFO L85 PathProgramCache]: Analyzing trace with hash 56575, now seen corresponding path program 1 times [2021-11-25 20:14:25,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:25,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720994779] [2021-11-25 20:14:25,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:25,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:25,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:25,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:25,442 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:25,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720994779] [2021-11-25 20:14:25,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720994779] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:14:25,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:14:25,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:14:25,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196682154] [2021-11-25 20:14:25,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:14:25,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:14:25,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:25,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:14:25,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:14:25,468 INFO L87 Difference]: Start difference. First operand has 11258 states, 11246 states have (on average 5.463186910901654) internal successors, (61439), 11257 states have internal predecessors, (61439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:25,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:25,725 INFO L93 Difference]: Finished difference Result 11257 states and 61438 transitions. [2021-11-25 20:14:25,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:14:25,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-11-25 20:14:25,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:25,779 INFO L225 Difference]: With dead ends: 11257 [2021-11-25 20:14:25,779 INFO L226 Difference]: Without dead ends: 11257 [2021-11-25 20:14:25,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:14:25,780 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:25,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:14:25,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11257 states. [2021-11-25 20:14:26,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11257 to 11257. [2021-11-25 20:14:26,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11257 states, 11246 states have (on average 5.4630979903965855) internal successors, (61438), 11256 states have internal predecessors, (61438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:26,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11257 states to 11257 states and 61438 transitions. [2021-11-25 20:14:26,460 INFO L78 Accepts]: Start accepts. Automaton has 11257 states and 61438 transitions. Word has length 2 [2021-11-25 20:14:26,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:26,461 INFO L470 AbstractCegarLoop]: Abstraction has 11257 states and 61438 transitions. [2021-11-25 20:14:26,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:26,461 INFO L276 IsEmpty]: Start isEmpty. Operand 11257 states and 61438 transitions. [2021-11-25 20:14:26,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-25 20:14:26,461 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:26,462 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-25 20:14:26,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-11-25 20:14:26,462 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:14:26,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:26,480 INFO L85 PathProgramCache]: Analyzing trace with hash 775467494, now seen corresponding path program 1 times [2021-11-25 20:14:26,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:26,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556057652] [2021-11-25 20:14:26,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:26,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:26,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:26,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:14:26,507 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:26,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556057652] [2021-11-25 20:14:26,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556057652] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:14:26,507 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:14:26,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:14:26,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732295195] [2021-11-25 20:14:26,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:14:26,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:14:26,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:26,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:14:26,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:14:26,510 INFO L87 Difference]: Start difference. First operand 11257 states and 61438 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:26,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:26,648 INFO L93 Difference]: Finished difference Result 11247 states and 61373 transitions. [2021-11-25 20:14:26,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:14:26,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-25 20:14:26,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:26,716 INFO L225 Difference]: With dead ends: 11247 [2021-11-25 20:14:26,717 INFO L226 Difference]: Without dead ends: 11247 [2021-11-25 20:14:26,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:14:26,719 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 10 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:26,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 4 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:14:26,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11247 states. [2021-11-25 20:14:27,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11247 to 11247. [2021-11-25 20:14:27,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11247 states, 11236 states have (on average 5.462175151299395) internal successors, (61373), 11246 states have internal predecessors, (61373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:27,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11247 states to 11247 states and 61373 transitions. [2021-11-25 20:14:27,293 INFO L78 Accepts]: Start accepts. Automaton has 11247 states and 61373 transitions. Word has length 6 [2021-11-25 20:14:27,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:27,294 INFO L470 AbstractCegarLoop]: Abstraction has 11247 states and 61373 transitions. [2021-11-25 20:14:27,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:27,294 INFO L276 IsEmpty]: Start isEmpty. Operand 11247 states and 61373 transitions. [2021-11-25 20:14:27,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 20:14:27,294 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:27,294 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:27,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-11-25 20:14:27,294 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:14:27,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:27,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1725891420, now seen corresponding path program 1 times [2021-11-25 20:14:27,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:27,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826226333] [2021-11-25 20:14:27,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:27,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:27,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:27,312 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:27,313 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:27,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826226333] [2021-11-25 20:14:27,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826226333] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:14:27,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689126795] [2021-11-25 20:14:27,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:27,313 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:27,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:14:27,329 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:14:27,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-25 20:14:27,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:27,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-25 20:14:27,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:14:27,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:27,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:14:27,509 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:27,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689126795] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:14:27,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [324415940] [2021-11-25 20:14:27,510 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 20:14:27,511 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:14:27,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3, 3] total 7 [2021-11-25 20:14:27,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637738259] [2021-11-25 20:14:27,512 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:14:27,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 20:14:27,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:27,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 20:14:27,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-25 20:14:27,514 INFO L87 Difference]: Start difference. First operand 11247 states and 61373 transitions. Second operand has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:27,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:27,808 INFO L93 Difference]: Finished difference Result 16810 states and 87922 transitions. [2021-11-25 20:14:27,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-25 20:14:27,809 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-25 20:14:27,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:27,902 INFO L225 Difference]: With dead ends: 16810 [2021-11-25 20:14:27,903 INFO L226 Difference]: Without dead ends: 16810 [2021-11-25 20:14:27,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2021-11-25 20:14:27,906 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 140 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:27,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 10 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:14:27,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16810 states. [2021-11-25 20:14:28,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16810 to 14776. [2021-11-25 20:14:28,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14776 states, 14767 states have (on average 5.334123383219341) internal successors, (78769), 14775 states have internal predecessors, (78769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:28,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14776 states to 14776 states and 78769 transitions. [2021-11-25 20:14:28,629 INFO L78 Accepts]: Start accepts. Automaton has 14776 states and 78769 transitions. Word has length 7 [2021-11-25 20:14:28,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:28,629 INFO L470 AbstractCegarLoop]: Abstraction has 14776 states and 78769 transitions. [2021-11-25 20:14:28,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:28,629 INFO L276 IsEmpty]: Start isEmpty. Operand 14776 states and 78769 transitions. [2021-11-25 20:14:28,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-25 20:14:28,629 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:28,630 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:28,832 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forcibly destroying the process [2021-11-25 20:14:28,833 WARN L724 oredProcess$PipePump]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] The stream was forcibly closed: stdIn [2021-11-25 20:14:28,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-11-25 20:14:28,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:28,833 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:14:28,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:28,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1227201065, now seen corresponding path program 1 times [2021-11-25 20:14:28,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:28,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022824414] [2021-11-25 20:14:28,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:28,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:28,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:28,897 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:28,897 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:28,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022824414] [2021-11-25 20:14:28,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022824414] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:14:28,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593303055] [2021-11-25 20:14:28,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:28,898 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:28,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:14:28,899 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:14:28,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-11-25 20:14:29,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:29,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 20:14:29,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:14:29,079 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:29,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:14:29,144 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:29,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1593303055] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:14:29,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1156503953] [2021-11-25 20:14:29,145 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 20:14:29,145 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:14:29,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 11 [2021-11-25 20:14:29,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704146312] [2021-11-25 20:14:29,146 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:14:29,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-25 20:14:29,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:29,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-25 20:14:29,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2021-11-25 20:14:29,147 INFO L87 Difference]: Start difference. First operand 14776 states and 78769 transitions. Second operand has 13 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:29,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:29,556 INFO L93 Difference]: Finished difference Result 20136 states and 104605 transitions. [2021-11-25 20:14:29,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-25 20:14:29,557 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-25 20:14:29,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:29,644 INFO L225 Difference]: With dead ends: 20136 [2021-11-25 20:14:29,644 INFO L226 Difference]: Without dead ends: 20136 [2021-11-25 20:14:29,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=206, Invalid=496, Unknown=0, NotChecked=0, Total=702 [2021-11-25 20:14:29,645 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 279 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:29,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 16 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:14:29,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20136 states. [2021-11-25 20:14:30,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20136 to 16378. [2021-11-25 20:14:30,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16378 states, 16373 states have (on average 5.353936358639223) internal successors, (87660), 16377 states have internal predecessors, (87660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:30,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16378 states to 16378 states and 87660 transitions. [2021-11-25 20:14:30,452 INFO L78 Accepts]: Start accepts. Automaton has 16378 states and 87660 transitions. Word has length 15 [2021-11-25 20:14:30,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:30,452 INFO L470 AbstractCegarLoop]: Abstraction has 16378 states and 87660 transitions. [2021-11-25 20:14:30,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:30,452 INFO L276 IsEmpty]: Start isEmpty. Operand 16378 states and 87660 transitions. [2021-11-25 20:14:30,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-25 20:14:30,456 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:30,456 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:30,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2021-11-25 20:14:30,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-11-25 20:14:30,684 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:14:30,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:30,685 INFO L85 PathProgramCache]: Analyzing trace with hash 479040613, now seen corresponding path program 1 times [2021-11-25 20:14:30,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:30,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110644985] [2021-11-25 20:14:30,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:30,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:30,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:30,759 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:30,759 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:30,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110644985] [2021-11-25 20:14:30,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110644985] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:14:30,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641126483] [2021-11-25 20:14:30,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:30,760 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:30,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:14:30,761 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:14:30,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-11-25 20:14:30,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:30,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-25 20:14:30,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:14:30,982 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 73 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-25 20:14:30,982 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:14:31,117 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 73 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-25 20:14:31,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641126483] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:14:31,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1070355035] [2021-11-25 20:14:31,118 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 20:14:31,118 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:14:31,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 16 [2021-11-25 20:14:31,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100773242] [2021-11-25 20:14:31,119 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:14:31,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-25 20:14:31,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:31,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-25 20:14:31,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2021-11-25 20:14:31,120 INFO L87 Difference]: Start difference. First operand 16378 states and 87660 transitions. Second operand has 18 states, 17 states have (on average 3.823529411764706) internal successors, (65), 17 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:31,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:31,643 INFO L93 Difference]: Finished difference Result 18940 states and 99061 transitions. [2021-11-25 20:14:31,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-25 20:14:31,643 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.823529411764706) internal successors, (65), 17 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-25 20:14:31,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:31,706 INFO L225 Difference]: With dead ends: 18940 [2021-11-25 20:14:31,706 INFO L226 Difference]: Without dead ends: 18940 [2021-11-25 20:14:31,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=426, Invalid=980, Unknown=0, NotChecked=0, Total=1406 [2021-11-25 20:14:31,708 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 441 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:31,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [441 Valid, 22 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 20:14:31,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18940 states. [2021-11-25 20:14:32,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18940 to 9211. [2021-11-25 20:14:32,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9211 states, 9210 states have (on average 5.447882736156352) internal successors, (50175), 9210 states have internal predecessors, (50175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:32,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9211 states to 9211 states and 50175 transitions. [2021-11-25 20:14:32,328 INFO L78 Accepts]: Start accepts. Automaton has 9211 states and 50175 transitions. Word has length 31 [2021-11-25 20:14:32,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:32,328 INFO L470 AbstractCegarLoop]: Abstraction has 9211 states and 50175 transitions. [2021-11-25 20:14:32,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.823529411764706) internal successors, (65), 17 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:32,329 INFO L276 IsEmpty]: Start isEmpty. Operand 9211 states and 50175 transitions. [2021-11-25 20:14:32,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-25 20:14:32,340 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:32,340 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:32,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-11-25 20:14:32,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-11-25 20:14:32,541 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:14:32,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:32,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1114723927, now seen corresponding path program 1 times [2021-11-25 20:14:32,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:32,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978649456] [2021-11-25 20:14:32,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:32,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:32,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 20:14:32,567 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 20:14:32,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 20:14:32,585 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-25 20:14:32,586 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 20:14:32,586 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-25 20:14:32,586 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-25 20:14:32,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-11-25 20:14:32,587 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-25 20:14:32,587 WARN L234 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-25 20:14:32,587 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2021-11-25 20:14:32,600 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,601 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,601 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,601 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,601 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,601 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,601 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,601 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,602 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,602 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,602 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,602 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,602 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,602 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,602 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,602 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,603 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,603 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,603 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,603 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,603 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,603 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,603 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,604 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,604 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,604 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,604 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,604 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,604 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,604 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,604 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,605 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,605 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,605 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,605 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,605 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,605 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,605 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,606 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,606 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,606 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,606 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,606 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,606 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,606 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,606 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,607 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,607 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,607 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,607 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,607 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,607 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,607 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,608 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,608 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,608 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,608 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,608 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,608 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,608 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,609 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,609 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,609 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,609 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,609 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,609 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,609 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,609 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,610 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,610 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,610 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,610 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,610 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,610 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,610 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,610 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,611 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,611 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,611 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,611 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,611 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,611 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,611 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,612 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,612 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,612 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,612 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,612 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,612 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,612 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,613 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,613 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,613 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,613 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,613 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,613 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,613 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,613 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,614 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,614 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,614 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,614 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,614 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,614 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,614 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,615 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,615 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,615 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,615 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,615 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,615 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,615 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,615 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,616 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,616 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,616 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,616 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,616 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,616 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,616 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,617 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,617 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,617 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,617 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,617 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,617 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,617 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,617 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,618 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,618 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,618 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,618 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,618 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,618 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,618 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,619 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,619 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,619 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,619 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,619 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,619 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,619 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,619 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,620 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,620 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,620 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,620 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,620 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,620 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,620 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,621 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,621 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,621 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,621 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,621 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,621 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,621 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,621 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,622 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,622 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,622 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,622 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,622 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,622 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,622 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,623 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,623 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,623 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,623 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,623 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,623 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,623 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,623 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,624 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,624 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,624 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,624 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,624 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,624 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,624 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,625 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,625 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,625 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,625 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,625 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,625 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,625 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,625 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,626 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,626 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,626 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,626 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,626 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,626 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,626 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,626 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,627 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,627 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,627 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,627 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,627 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,627 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,627 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,628 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,628 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,628 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,628 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,628 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,628 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,628 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,628 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,629 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,629 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,629 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,629 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,629 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,629 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,629 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,630 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,630 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,630 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,630 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,630 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,630 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,631 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,631 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,631 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,632 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,632 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,632 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,632 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,632 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,633 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,633 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,633 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,633 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,633 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,633 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,634 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,634 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,634 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,634 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,634 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,634 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,635 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,635 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,635 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,635 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,635 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,635 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,636 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,636 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,636 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,636 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,636 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,637 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,637 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,637 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,637 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,637 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,638 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,638 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,638 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,638 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,638 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,638 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,639 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,639 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,639 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,639 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,640 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,640 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,640 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,640 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,640 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 20:14:32,642 INFO L148 ThreadInstanceAdder]: Constructed 11 joinOtherThreadTransitions. [2021-11-25 20:14:32,643 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:14:32,644 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:14:32,644 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 20:14:32,645 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-25 20:14:32,645 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 138 places, 129 transitions, 456 flow [2021-11-25 20:14:32,645 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 138 places, 129 transitions, 456 flow [2021-11-25 20:14:32,646 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 138 places, 129 transitions, 456 flow [2021-11-25 20:14:39,329 INFO L129 PetriNetUnfolder]: 11300/40218 cut-off events. [2021-11-25 20:14:39,329 INFO L130 PetriNetUnfolder]: For 11539/11539 co-relation queries the response was YES. [2021-11-25 20:14:39,654 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51582 conditions, 40218 events. 11300/40218 cut-off events. For 11539/11539 co-relation queries the response was YES. Maximal size of possible extension queue 763. Compared 472350 event pairs, 7181 based on Foata normal form. 0/36074 useless extension candidates. Maximal degree in co-relation 24906. Up to 11264 conditions per place. [2021-11-25 20:14:40,501 INFO L116 LiptonReduction]: Number of co-enabled transitions 7920 [2021-11-25 20:14:42,652 INFO L131 LiptonReduction]: Checked pairs total: 13114 [2021-11-25 20:14:42,652 INFO L133 LiptonReduction]: Total number of compositions: 90 [2021-11-25 20:14:42,653 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 44 transitions, 286 flow [2021-11-25 20:14:43,653 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 22522 states, 22509 states have (on average 5.959527300191034) internal successors, (134143), 22521 states have internal predecessors, (134143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:43,691 INFO L276 IsEmpty]: Start isEmpty. Operand has 22522 states, 22509 states have (on average 5.959527300191034) internal successors, (134143), 22521 states have internal predecessors, (134143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:43,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-25 20:14:43,692 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:43,692 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-25 20:14:43,692 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:14:43,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:43,692 INFO L85 PathProgramCache]: Analyzing trace with hash 63813, now seen corresponding path program 1 times [2021-11-25 20:14:43,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:43,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133821811] [2021-11-25 20:14:43,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:43,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:43,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:43,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:43,701 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:43,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133821811] [2021-11-25 20:14:43,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133821811] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:14:43,702 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:14:43,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:14:43,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170532224] [2021-11-25 20:14:43,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:14:43,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:14:43,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:43,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:14:43,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:14:43,748 INFO L87 Difference]: Start difference. First operand has 22522 states, 22509 states have (on average 5.959527300191034) internal successors, (134143), 22521 states have internal predecessors, (134143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:44,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:44,192 INFO L93 Difference]: Finished difference Result 22521 states and 134142 transitions. [2021-11-25 20:14:44,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:14:44,192 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-11-25 20:14:44,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:44,290 INFO L225 Difference]: With dead ends: 22521 [2021-11-25 20:14:44,290 INFO L226 Difference]: Without dead ends: 22521 [2021-11-25 20:14:44,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:14:44,290 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:44,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:14:44,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22521 states. [2021-11-25 20:14:44,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22521 to 22521. [2021-11-25 20:14:44,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22521 states, 22509 states have (on average 5.95948287351726) internal successors, (134142), 22520 states have internal predecessors, (134142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:45,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22521 states to 22521 states and 134142 transitions. [2021-11-25 20:14:45,448 INFO L78 Accepts]: Start accepts. Automaton has 22521 states and 134142 transitions. Word has length 2 [2021-11-25 20:14:45,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:45,449 INFO L470 AbstractCegarLoop]: Abstraction has 22521 states and 134142 transitions. [2021-11-25 20:14:45,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:45,449 INFO L276 IsEmpty]: Start isEmpty. Operand 22521 states and 134142 transitions. [2021-11-25 20:14:45,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-25 20:14:45,449 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:45,449 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-25 20:14:45,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-11-25 20:14:45,450 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:14:45,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:45,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1132489220, now seen corresponding path program 1 times [2021-11-25 20:14:45,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:45,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12835824] [2021-11-25 20:14:45,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:45,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:45,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:45,467 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:14:45,467 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:45,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12835824] [2021-11-25 20:14:45,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12835824] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:14:45,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:14:45,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:14:45,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40957171] [2021-11-25 20:14:45,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:14:45,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:14:45,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:45,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:14:45,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:14:45,469 INFO L87 Difference]: Start difference. First operand 22521 states and 134142 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:45,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:45,642 INFO L93 Difference]: Finished difference Result 22510 states and 134065 transitions. [2021-11-25 20:14:45,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:14:45,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-25 20:14:45,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:45,747 INFO L225 Difference]: With dead ends: 22510 [2021-11-25 20:14:45,747 INFO L226 Difference]: Without dead ends: 22510 [2021-11-25 20:14:45,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:14:45,748 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 11 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:45,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 4 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:14:45,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22510 states. [2021-11-25 20:14:46,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22510 to 22510. [2021-11-25 20:14:46,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22510 states, 22498 states have (on average 5.9589741310338695) internal successors, (134065), 22509 states have internal predecessors, (134065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:46,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22510 states to 22510 states and 134065 transitions. [2021-11-25 20:14:46,923 INFO L78 Accepts]: Start accepts. Automaton has 22510 states and 134065 transitions. Word has length 6 [2021-11-25 20:14:46,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:46,924 INFO L470 AbstractCegarLoop]: Abstraction has 22510 states and 134065 transitions. [2021-11-25 20:14:46,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:46,924 INFO L276 IsEmpty]: Start isEmpty. Operand 22510 states and 134065 transitions. [2021-11-25 20:14:46,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 20:14:46,924 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:46,924 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:46,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-11-25 20:14:46,924 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:14:46,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:46,925 INFO L85 PathProgramCache]: Analyzing trace with hash -747425236, now seen corresponding path program 1 times [2021-11-25 20:14:46,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:46,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666879869] [2021-11-25 20:14:46,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:46,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:46,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:46,959 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:46,959 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:46,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666879869] [2021-11-25 20:14:46,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666879869] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:14:46,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995016290] [2021-11-25 20:14:46,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:46,960 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:46,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:14:46,976 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:14:46,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-11-25 20:14:47,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:47,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 20:14:47,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:14:47,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:47,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:14:47,136 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:47,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995016290] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:14:47,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1090683286] [2021-11-25 20:14:47,137 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 20:14:47,138 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:14:47,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2021-11-25 20:14:47,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219409334] [2021-11-25 20:14:47,138 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:14:47,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 20:14:47,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:47,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 20:14:47,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-25 20:14:47,139 INFO L87 Difference]: Start difference. First operand 22510 states and 134065 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:47,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:47,393 INFO L93 Difference]: Finished difference Result 22499 states and 134043 transitions. [2021-11-25 20:14:47,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:14:47,394 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-25 20:14:47,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:47,525 INFO L225 Difference]: With dead ends: 22499 [2021-11-25 20:14:47,525 INFO L226 Difference]: Without dead ends: 22499 [2021-11-25 20:14:47,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-25 20:14:47,526 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 43 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:47,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 8 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:14:47,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22499 states. [2021-11-25 20:14:48,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22499 to 22499. [2021-11-25 20:14:48,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22499 states, 22490 states have (on average 5.960115606936416) internal successors, (134043), 22498 states have internal predecessors, (134043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:48,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22499 states to 22499 states and 134043 transitions. [2021-11-25 20:14:48,727 INFO L78 Accepts]: Start accepts. Automaton has 22499 states and 134043 transitions. Word has length 7 [2021-11-25 20:14:48,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:48,728 INFO L470 AbstractCegarLoop]: Abstraction has 22499 states and 134043 transitions. [2021-11-25 20:14:48,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:48,728 INFO L276 IsEmpty]: Start isEmpty. Operand 22499 states and 134043 transitions. [2021-11-25 20:14:48,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-25 20:14:48,728 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:48,728 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:48,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-11-25 20:14:48,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:48,929 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:14:48,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:48,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1213946771, now seen corresponding path program 1 times [2021-11-25 20:14:48,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:48,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264234833] [2021-11-25 20:14:48,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:48,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:48,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:48,979 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-25 20:14:48,979 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:48,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264234833] [2021-11-25 20:14:48,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264234833] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:14:48,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656071812] [2021-11-25 20:14:48,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:48,979 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:48,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:14:48,980 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:14:48,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-11-25 20:14:49,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:49,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-25 20:14:49,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:14:49,175 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-25 20:14:49,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:14:49,238 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-25 20:14:49,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656071812] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:14:49,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2056945301] [2021-11-25 20:14:49,239 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 20:14:49,240 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:14:49,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2021-11-25 20:14:49,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320904096] [2021-11-25 20:14:49,241 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:14:49,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 20:14:49,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:49,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 20:14:49,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-25 20:14:49,241 INFO L87 Difference]: Start difference. First operand 22499 states and 134043 transitions. Second operand has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:50,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:50,202 INFO L93 Difference]: Finished difference Result 33690 states and 193045 transitions. [2021-11-25 20:14:50,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 20:14:50,203 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-25 20:14:50,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:50,344 INFO L225 Difference]: With dead ends: 33690 [2021-11-25 20:14:50,344 INFO L226 Difference]: Without dead ends: 33690 [2021-11-25 20:14:50,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2021-11-25 20:14:50,344 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 258 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:50,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [258 Valid, 6 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:14:50,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33690 states. [2021-11-25 20:14:51,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33690 to 29612. [2021-11-25 20:14:51,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29612 states, 29603 states have (on average 5.831908928149174) internal successors, (172642), 29611 states have internal predecessors, (172642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:51,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29612 states to 29612 states and 172642 transitions. [2021-11-25 20:14:51,643 INFO L78 Accepts]: Start accepts. Automaton has 29612 states and 172642 transitions. Word has length 19 [2021-11-25 20:14:51,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:51,643 INFO L470 AbstractCegarLoop]: Abstraction has 29612 states and 172642 transitions. [2021-11-25 20:14:51,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:51,644 INFO L276 IsEmpty]: Start isEmpty. Operand 29612 states and 172642 transitions. [2021-11-25 20:14:51,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-25 20:14:51,644 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:51,644 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:51,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2021-11-25 20:14:51,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2021-11-25 20:14:51,845 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:14:51,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:51,845 INFO L85 PathProgramCache]: Analyzing trace with hash -647955055, now seen corresponding path program 1 times [2021-11-25 20:14:51,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:51,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701675081] [2021-11-25 20:14:51,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:51,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:51,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:51,894 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:51,895 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:51,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701675081] [2021-11-25 20:14:51,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701675081] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:14:51,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616577004] [2021-11-25 20:14:51,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:51,896 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:51,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:14:51,897 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:14:51,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-11-25 20:14:52,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:52,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-25 20:14:52,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:14:52,137 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-25 20:14:52,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:14:52,210 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-25 20:14:52,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616577004] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:14:52,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [40928935] [2021-11-25 20:14:52,211 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 20:14:52,212 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:14:52,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 12 [2021-11-25 20:14:52,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499017014] [2021-11-25 20:14:52,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:14:52,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-25 20:14:52,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:52,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-25 20:14:52,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2021-11-25 20:14:52,214 INFO L87 Difference]: Start difference. First operand 29612 states and 172642 transitions. Second operand has 14 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:52,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:52,745 INFO L93 Difference]: Finished difference Result 40598 states and 230879 transitions. [2021-11-25 20:14:52,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-25 20:14:52,746 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-25 20:14:52,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:53,630 INFO L225 Difference]: With dead ends: 40598 [2021-11-25 20:14:53,630 INFO L226 Difference]: Without dead ends: 40598 [2021-11-25 20:14:53,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=244, Invalid=568, Unknown=0, NotChecked=0, Total=812 [2021-11-25 20:14:53,631 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 274 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:53,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [274 Valid, 20 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:14:53,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40598 states. [2021-11-25 20:14:54,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40598 to 32998. [2021-11-25 20:14:54,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32998 states, 32992 states have (on average 5.848660281280311) internal successors, (192959), 32997 states have internal predecessors, (192959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:55,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32998 states to 32998 states and 192959 transitions. [2021-11-25 20:14:55,449 INFO L78 Accepts]: Start accepts. Automaton has 32998 states and 192959 transitions. Word has length 19 [2021-11-25 20:14:55,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:55,449 INFO L470 AbstractCegarLoop]: Abstraction has 32998 states and 192959 transitions. [2021-11-25 20:14:55,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:55,449 INFO L276 IsEmpty]: Start isEmpty. Operand 32998 states and 192959 transitions. [2021-11-25 20:14:55,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-25 20:14:55,453 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:55,453 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:55,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-11-25 20:14:55,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2021-11-25 20:14:55,669 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:14:55,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:55,669 INFO L85 PathProgramCache]: Analyzing trace with hash 656578110, now seen corresponding path program 1 times [2021-11-25 20:14:55,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:55,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673099630] [2021-11-25 20:14:55,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:55,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:55,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:55,747 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:55,747 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:55,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673099630] [2021-11-25 20:14:55,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673099630] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:14:55,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032680601] [2021-11-25 20:14:55,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:55,748 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:55,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:14:55,752 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:14:55,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-11-25 20:14:55,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:55,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 20:14:55,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:14:55,994 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-25 20:14:55,995 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:14:56,082 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-25 20:14:56,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032680601] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:14:56,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [28112729] [2021-11-25 20:14:56,083 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 20:14:56,083 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:14:56,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 16 [2021-11-25 20:14:56,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754553577] [2021-11-25 20:14:56,083 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:14:56,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-25 20:14:56,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:56,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-25 20:14:56,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2021-11-25 20:14:56,085 INFO L87 Difference]: Start difference. First operand 32998 states and 192959 transitions. Second operand has 18 states, 17 states have (on average 4.0) internal successors, (68), 17 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:56,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:56,751 INFO L93 Difference]: Finished difference Result 41168 states and 236638 transitions. [2021-11-25 20:14:56,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-25 20:14:56,751 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 4.0) internal successors, (68), 17 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-25 20:14:56,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:56,916 INFO L225 Difference]: With dead ends: 41168 [2021-11-25 20:14:56,916 INFO L226 Difference]: Without dead ends: 41168 [2021-11-25 20:14:56,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=460, Invalid=1100, Unknown=0, NotChecked=0, Total=1560 [2021-11-25 20:14:56,917 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 555 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:56,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [555 Valid, 26 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 20:14:57,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41168 states. [2021-11-25 20:14:58,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41168 to 32738. [2021-11-25 20:14:58,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32738 states, 32736 states have (on average 5.89342008797654) internal successors, (192927), 32737 states have internal predecessors, (192927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:58,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32738 states to 32738 states and 192927 transitions. [2021-11-25 20:14:58,540 INFO L78 Accepts]: Start accepts. Automaton has 32738 states and 192927 transitions. Word has length 31 [2021-11-25 20:14:58,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:58,540 INFO L470 AbstractCegarLoop]: Abstraction has 32738 states and 192927 transitions. [2021-11-25 20:14:58,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 4.0) internal successors, (68), 17 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:58,540 INFO L276 IsEmpty]: Start isEmpty. Operand 32738 states and 192927 transitions. [2021-11-25 20:14:58,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-25 20:14:58,596 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:58,596 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:58,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-11-25 20:14:58,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:58,797 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-25 20:14:58,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:58,797 INFO L85 PathProgramCache]: Analyzing trace with hash 762512521, now seen corresponding path program 1 times [2021-11-25 20:14:58,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:58,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91169857] [2021-11-25 20:14:58,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:58,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:59,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:59,500 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:59,500 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:59,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91169857] [2021-11-25 20:14:59,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91169857] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:14:59,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567673334] [2021-11-25 20:14:59,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:59,501 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:59,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:14:59,525 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:14:59,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_653b271a-ecff-4def-919a-d564a8256569/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-11-25 20:14:59,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:59,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-25 20:14:59,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:14:59,808 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-11-25 20:14:59,808 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:14:59,958 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-11-25 20:14:59,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [567673334] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:14:59,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [125122819] [2021-11-25 20:14:59,959 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 20:14:59,960 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:14:59,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7, 7] total 22 [2021-11-25 20:14:59,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459478864] [2021-11-25 20:14:59,961 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:14:59,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-25 20:14:59,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:59,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-25 20:14:59,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=352, Unknown=0, NotChecked=0, Total=552 [2021-11-25 20:14:59,962 INFO L87 Difference]: Start difference. First operand 32738 states and 192927 transitions. Second operand has 24 states, 23 states have (on average 4.260869565217392) internal successors, (98), 23 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:15:00,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:15:00,617 INFO L93 Difference]: Finished difference Result 39632 states and 228346 transitions. [2021-11-25 20:15:00,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-25 20:15:00,617 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.260869565217392) internal successors, (98), 23 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-11-25 20:15:00,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:15:00,773 INFO L225 Difference]: With dead ends: 39632 [2021-11-25 20:15:00,773 INFO L226 Difference]: Without dead ends: 39632 [2021-11-25 20:15:00,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=631, Invalid=1349, Unknown=0, NotChecked=0, Total=1980 [2021-11-25 20:15:00,774 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 743 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:15:00,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [743 Valid, 23 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 20:15:00,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39632 states.