./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.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_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/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_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/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_1ddba502-cb17-4b7f-bc32-71668d9c56ed/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 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:52:16,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:52:16,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:52:17,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:52:17,014 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:52:17,018 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:52:17,020 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:52:17,023 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:52:17,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:52:17,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:52:17,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:52:17,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:52:17,035 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:52:17,038 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:52:17,040 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:52:17,046 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:52:17,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:52:17,049 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:52:17,051 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:52:17,059 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:52:17,061 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:52:17,062 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:52:17,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:52:17,067 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:52:17,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:52:17,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:52:17,076 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:52:17,078 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:52:17,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:52:17,080 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:52:17,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:52:17,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:52:17,084 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:52:17,085 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:52:17,086 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:52:17,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:52:17,087 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:52:17,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:52:17,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:52:17,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:52:17,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:52:17,091 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 18:52:17,133 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:52:17,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:52:17,134 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:52:17,134 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:52:17,141 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:52:17,141 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:52:17,141 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:52:17,142 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:52:17,142 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:52:17,142 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:52:17,143 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:52:17,143 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:52:17,144 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:52:17,144 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:52:17,144 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:52:17,144 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:52:17,144 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:52:17,145 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:52:17,145 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:52:17,146 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 18:52:17,146 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:52:17,146 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 18:52:17,146 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:52:17,147 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:52:17,147 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:52:17,147 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:52:17,149 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 18:52:17,149 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:52:17,149 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:52:17,149 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:52:17,149 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:52:17,150 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:52:17,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:52:17,150 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:52:17,151 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:52:17,151 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:52:17,151 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:52:17,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:52:17,151 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:52:17,152 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:52:17,152 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:52:17,152 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_1ddba502-cb17-4b7f-bc32-71668d9c56ed/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 [2021-11-25 18:52:17,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:52:17,421 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:52:17,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:52:17,433 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:52:17,434 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:52:17,435 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2021-11-25 18:52:17,505 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7/data/6fcbfa768/77f24c231c6440a99aeaa3094fcfb354/FLAGbb6ba1290 [2021-11-25 18:52:18,060 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:52:18,061 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2021-11-25 18:52:18,085 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7/data/6fcbfa768/77f24c231c6440a99aeaa3094fcfb354/FLAGbb6ba1290 [2021-11-25 18:52:18,318 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7/data/6fcbfa768/77f24c231c6440a99aeaa3094fcfb354 [2021-11-25 18:52:18,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:52:18,323 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:52:18,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:52:18,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:52:18,329 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:52:18,330 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:52:18" (1/1) ... [2021-11-25 18:52:18,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31bb3d01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:52:18, skipping insertion in model container [2021-11-25 18:52:18,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:52:18" (1/1) ... [2021-11-25 18:52:18,340 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:52:18,399 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:52:18,588 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_1ddba502-cb17-4b7f-bc32-71668d9c56ed/sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i[1115,1128] [2021-11-25 18:52:18,741 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:52:18,752 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:52:18,764 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_1ddba502-cb17-4b7f-bc32-71668d9c56ed/sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i[1115,1128] [2021-11-25 18:52:18,795 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:52:18,831 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:52:18,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:52:18 WrapperNode [2021-11-25 18:52:18,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:52:18,832 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:52:18,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:52:18,833 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:52:18,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:52:18" (1/1) ... [2021-11-25 18:52:18,854 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:52:18" (1/1) ... [2021-11-25 18:52:18,879 INFO L137 Inliner]: procedures = 165, calls = 35, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 118 [2021-11-25 18:52:18,879 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:52:18,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:52:18,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:52:18,880 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:52:18,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:52:18" (1/1) ... [2021-11-25 18:52:18,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:52:18" (1/1) ... [2021-11-25 18:52:18,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:52:18" (1/1) ... [2021-11-25 18:52:18,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:52:18" (1/1) ... [2021-11-25 18:52:18,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:52:18" (1/1) ... [2021-11-25 18:52:18,904 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:52:18" (1/1) ... [2021-11-25 18:52:18,906 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:52:18" (1/1) ... [2021-11-25 18:52:18,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:52:18,910 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:52:18,910 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:52:18,910 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:52:18,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:52:18" (1/1) ... [2021-11-25 18:52:18,926 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:52:18,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:52:18,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:52:18,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:52:19,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:52:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2021-11-25 18:52:19,011 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2021-11-25 18:52:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:52:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-25 18:52:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:52:19,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:52:19,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:52:19,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:52:19,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:52:19,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:52:19,013 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 18:52:19,199 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:52:19,201 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:52:19,467 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:52:19,476 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:52:19,476 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-25 18:52:19,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:52:19 BoogieIcfgContainer [2021-11-25 18:52:19,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:52:19,480 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:52:19,480 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:52:19,497 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:52:19,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:52:18" (1/3) ... [2021-11-25 18:52:19,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77114ac1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:52:19, skipping insertion in model container [2021-11-25 18:52:19,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:52:18" (2/3) ... [2021-11-25 18:52:19,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77114ac1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:52:19, skipping insertion in model container [2021-11-25 18:52:19,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:52:19" (3/3) ... [2021-11-25 18:52:19,500 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2021-11-25 18:52:19,505 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-25 18:52:19,505 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:52:19,505 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-25 18:52:19,506 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-25 18:52:19,565 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,565 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,565 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,565 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,566 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,566 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,566 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,566 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,566 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,567 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,567 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,567 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,567 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,567 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,567 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,568 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,568 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,568 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,568 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,568 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,568 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,569 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,569 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,569 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,569 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,569 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,569 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,570 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,570 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,570 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,570 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,570 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,570 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,570 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,571 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,571 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,571 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,571 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,571 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,571 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,571 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,572 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,572 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,572 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,572 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,572 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,572 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,573 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,573 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,573 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,573 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,575 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,576 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,576 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,576 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,576 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,576 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,576 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,577 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,577 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,577 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,577 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,577 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,577 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,578 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,578 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,578 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,578 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,579 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,579 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,579 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,579 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,580 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,580 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,580 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,581 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,581 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,584 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,585 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,585 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,585 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,585 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,586 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,587 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,587 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,587 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,593 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,593 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,593 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,593 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,593 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,593 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,594 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,594 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,596 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,597 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,597 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,597 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,597 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,597 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,597 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,598 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,598 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,598 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,598 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,598 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,598 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,599 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,599 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,599 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,600 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,601 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,601 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,601 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,601 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,601 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,601 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,601 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,602 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,602 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,602 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,602 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,602 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,602 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,603 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,603 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,603 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,603 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,603 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,603 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,604 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,604 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,604 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,605 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,605 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,605 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,605 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,605 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,606 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,606 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,606 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,606 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,606 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,606 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,606 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,607 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,607 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,608 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,608 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,608 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,608 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,608 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,609 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,609 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,609 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,609 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,609 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,609 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,609 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,610 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,610 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,610 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,611 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,611 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,611 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,611 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,611 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,611 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,612 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,612 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,619 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,619 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,620 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,620 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,620 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,620 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,620 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,620 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,620 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,621 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,621 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,621 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,621 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,621 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,621 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,622 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~qp#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,622 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#in~qp#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,622 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,622 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,622 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 18:52:19,626 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-25 18:52:19,705 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:52:19,718 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 18:52:19,718 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-25 18:52:19,740 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-25 18:52:19,760 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 136 places, 142 transitions, 289 flow [2021-11-25 18:52:19,767 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 136 places, 142 transitions, 289 flow [2021-11-25 18:52:19,769 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 136 places, 142 transitions, 289 flow [2021-11-25 18:52:19,859 INFO L129 PetriNetUnfolder]: 10/141 cut-off events. [2021-11-25 18:52:19,859 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-25 18:52:19,864 INFO L84 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 141 events. 10/141 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 226 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2021-11-25 18:52:19,872 INFO L116 LiptonReduction]: Number of co-enabled transitions 4712 [2021-11-25 18:52:24,460 INFO L131 LiptonReduction]: Checked pairs total: 6332 [2021-11-25 18:52:24,461 INFO L133 LiptonReduction]: Total number of compositions: 141 [2021-11-25 18:52:24,477 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 28 transitions, 61 flow [2021-11-25 18:52:24,495 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 98 states, 96 states have (on average 2.3958333333333335) internal successors, (230), 97 states have internal predecessors, (230), 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 18:52:24,497 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 96 states have (on average 2.3958333333333335) internal successors, (230), 97 states have internal predecessors, (230), 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 18:52:24,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-25 18:52:24,503 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:52:24,503 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-25 18:52:24,504 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 18:52:24,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:52:24,509 INFO L85 PathProgramCache]: Analyzing trace with hash -571934413, now seen corresponding path program 1 times [2021-11-25 18:52:24,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:52:24,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019267596] [2021-11-25 18:52:24,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:52:24,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:52:24,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:52:24,703 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 18:52:24,704 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:52:24,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019267596] [2021-11-25 18:52:24,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019267596] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:52:24,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:52:24,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:52:24,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784447003] [2021-11-25 18:52:24,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:52:24,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 18:52:24,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:52:24,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 18:52:24,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 18:52:24,737 INFO L87 Difference]: Start difference. First operand has 98 states, 96 states have (on average 2.3958333333333335) internal successors, (230), 97 states have internal predecessors, (230), 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 2 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 18:52:24,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:52:24,806 INFO L93 Difference]: Finished difference Result 98 states and 222 transitions. [2021-11-25 18:52:24,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 18:52:24,808 INFO L78 Accepts]: Start accepts. Automaton has has 2 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 18:52:24,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:52:24,820 INFO L225 Difference]: With dead ends: 98 [2021-11-25 18:52:24,820 INFO L226 Difference]: Without dead ends: 98 [2021-11-25 18:52:24,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 18:52:24,826 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:52:24,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:52:24,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-11-25 18:52:24,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2021-11-25 18:52:24,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 96 states have (on average 2.3125) internal successors, (222), 97 states have internal predecessors, (222), 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 18:52:24,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 222 transitions. [2021-11-25 18:52:24,884 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 222 transitions. Word has length 6 [2021-11-25 18:52:24,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:52:24,885 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 222 transitions. [2021-11-25 18:52:24,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 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 18:52:24,887 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 222 transitions. [2021-11-25 18:52:24,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-25 18:52:24,888 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:52:24,888 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-25 18:52:24,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:52:24,889 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 18:52:24,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:52:24,893 INFO L85 PathProgramCache]: Analyzing trace with hash -571937739, now seen corresponding path program 1 times [2021-11-25 18:52:24,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:52:24,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457428889] [2021-11-25 18:52:24,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:52:24,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:52:24,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:52:25,074 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 18:52:25,074 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:52:25,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457428889] [2021-11-25 18:52:25,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457428889] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:52:25,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:52:25,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:52:25,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766386948] [2021-11-25 18:52:25,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:52:25,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:52:25,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:52:25,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:52:25,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:52:25,078 INFO L87 Difference]: Start difference. First operand 98 states and 222 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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 18:52:25,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:52:25,202 INFO L93 Difference]: Finished difference Result 128 states and 286 transitions. [2021-11-25 18:52:25,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:52:25,202 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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 18:52:25,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:52:25,207 INFO L225 Difference]: With dead ends: 128 [2021-11-25 18:52:25,207 INFO L226 Difference]: Without dead ends: 122 [2021-11-25 18:52:25,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:52:25,212 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 25 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:52:25,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 3 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:52:25,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-25 18:52:25,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 112. [2021-11-25 18:52:25,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 110 states have (on average 2.2818181818181817) internal successors, (251), 111 states have internal predecessors, (251), 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 18:52:25,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 251 transitions. [2021-11-25 18:52:25,232 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 251 transitions. Word has length 6 [2021-11-25 18:52:25,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:52:25,232 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 251 transitions. [2021-11-25 18:52:25,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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 18:52:25,232 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 251 transitions. [2021-11-25 18:52:25,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-25 18:52:25,233 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:52:25,233 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:52:25,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:52:25,233 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 18:52:25,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:52:25,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1798522638, now seen corresponding path program 1 times [2021-11-25 18:52:25,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:52:25,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965395353] [2021-11-25 18:52:25,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:52:25,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:52:25,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:52:25,445 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 18:52:25,445 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:52:25,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965395353] [2021-11-25 18:52:25,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965395353] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:52:25,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:52:25,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:52:25,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083647122] [2021-11-25 18:52:25,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:52:25,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 18:52:25,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:52:25,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 18:52:25,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-25 18:52:25,448 INFO L87 Difference]: Start difference. First operand 112 states and 251 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 18:52:25,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:52:25,689 INFO L93 Difference]: Finished difference Result 154 states and 339 transitions. [2021-11-25 18:52:25,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-25 18:52:25,689 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 18:52:25,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:52:25,693 INFO L225 Difference]: With dead ends: 154 [2021-11-25 18:52:25,693 INFO L226 Difference]: Without dead ends: 150 [2021-11-25 18:52:25,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-11-25 18:52:25,695 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 37 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:52:25,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 8 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 18:52:25,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-11-25 18:52:25,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 118. [2021-11-25 18:52:25,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 116 states have (on average 2.2844827586206895) internal successors, (265), 117 states have internal predecessors, (265), 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 18:52:25,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 265 transitions. [2021-11-25 18:52:25,713 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 265 transitions. Word has length 11 [2021-11-25 18:52:25,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:52:25,714 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 265 transitions. [2021-11-25 18:52:25,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 18:52:25,719 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 265 transitions. [2021-11-25 18:52:25,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-25 18:52:25,720 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:52:25,721 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:52:25,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 18:52:25,725 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 18:52:25,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:52:25,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1797627048, now seen corresponding path program 2 times [2021-11-25 18:52:25,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:52:25,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008989093] [2021-11-25 18:52:25,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:52:25,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:52:25,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:52:25,867 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 18:52:25,867 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:52:25,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008989093] [2021-11-25 18:52:25,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008989093] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:52:25,868 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:52:25,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 18:52:25,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383230075] [2021-11-25 18:52:25,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:52:25,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 18:52:25,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:52:25,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 18:52:25,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-25 18:52:25,869 INFO L87 Difference]: Start difference. First operand 118 states and 265 transitions. Second operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 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 18:52:26,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:52:26,180 INFO L93 Difference]: Finished difference Result 260 states and 570 transitions. [2021-11-25 18:52:26,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 18:52:26,180 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 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 18:52:26,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:52:26,183 INFO L225 Difference]: With dead ends: 260 [2021-11-25 18:52:26,183 INFO L226 Difference]: Without dead ends: 260 [2021-11-25 18:52:26,183 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2021-11-25 18:52:26,184 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 97 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:52:26,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 21 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 18:52:26,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2021-11-25 18:52:26,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 205. [2021-11-25 18:52:26,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 203 states have (on average 2.3596059113300494) internal successors, (479), 204 states have internal predecessors, (479), 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 18:52:26,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 479 transitions. [2021-11-25 18:52:26,200 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 479 transitions. Word has length 11 [2021-11-25 18:52:26,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:52:26,201 INFO L470 AbstractCegarLoop]: Abstraction has 205 states and 479 transitions. [2021-11-25 18:52:26,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 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 18:52:26,201 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 479 transitions. [2021-11-25 18:52:26,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-25 18:52:26,202 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:52:26,202 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:52:26,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 18:52:26,203 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 18:52:26,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:52:26,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1734006566, now seen corresponding path program 3 times [2021-11-25 18:52:26,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:52:26,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829609993] [2021-11-25 18:52:26,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:52:26,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:52:26,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:52:26,372 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 18:52:26,372 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:52:26,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829609993] [2021-11-25 18:52:26,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829609993] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:52:26,373 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:52:26,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:52:26,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851404334] [2021-11-25 18:52:26,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:52:26,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 18:52:26,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:52:26,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 18:52:26,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-25 18:52:26,376 INFO L87 Difference]: Start difference. First operand 205 states and 479 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 18:52:26,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:52:26,473 INFO L93 Difference]: Finished difference Result 215 states and 499 transitions. [2021-11-25 18:52:26,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:52:26,478 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 18:52:26,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:52:26,482 INFO L225 Difference]: With dead ends: 215 [2021-11-25 18:52:26,482 INFO L226 Difference]: Without dead ends: 211 [2021-11-25 18:52:26,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-25 18:52:26,485 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 18 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:52:26,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 4 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:52:26,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2021-11-25 18:52:26,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 199. [2021-11-25 18:52:26,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 197 states have (on average 2.3604060913705585) internal successors, (465), 198 states have internal predecessors, (465), 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 18:52:26,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 465 transitions. [2021-11-25 18:52:26,520 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 465 transitions. Word has length 11 [2021-11-25 18:52:26,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:52:26,520 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 465 transitions. [2021-11-25 18:52:26,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 18:52:26,521 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 465 transitions. [2021-11-25 18:52:26,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 18:52:26,521 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:52:26,522 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:52:26,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 18:52:26,522 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 18:52:26,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:52:26,523 INFO L85 PathProgramCache]: Analyzing trace with hash -108135358, now seen corresponding path program 1 times [2021-11-25 18:52:26,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:52:26,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683244479] [2021-11-25 18:52:26,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:52:26,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:52:26,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:52:26,568 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 18:52:26,569 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:52:26,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683244479] [2021-11-25 18:52:26,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683244479] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:52:26,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:52:26,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:52:26,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241132253] [2021-11-25 18:52:26,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:52:26,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:52:26,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:52:26,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:52:26,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:52:26,572 INFO L87 Difference]: Start difference. First operand 199 states and 465 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 18:52:26,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:52:26,683 INFO L93 Difference]: Finished difference Result 320 states and 733 transitions. [2021-11-25 18:52:26,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:52:26,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2021-11-25 18:52:26,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:52:26,690 INFO L225 Difference]: With dead ends: 320 [2021-11-25 18:52:26,690 INFO L226 Difference]: Without dead ends: 320 [2021-11-25 18:52:26,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:52:26,697 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 30 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:52:26,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 3 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:52:26,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2021-11-25 18:52:26,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 220. [2021-11-25 18:52:26,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 218 states have (on average 2.3440366972477062) internal successors, (511), 219 states have internal predecessors, (511), 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 18:52:26,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 511 transitions. [2021-11-25 18:52:26,712 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 511 transitions. Word has length 12 [2021-11-25 18:52:26,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:52:26,712 INFO L470 AbstractCegarLoop]: Abstraction has 220 states and 511 transitions. [2021-11-25 18:52:26,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 18:52:26,713 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 511 transitions. [2021-11-25 18:52:26,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-25 18:52:26,718 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:52:26,718 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:52:26,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 18:52:26,719 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 18:52:26,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:52:26,719 INFO L85 PathProgramCache]: Analyzing trace with hash -242433331, now seen corresponding path program 1 times [2021-11-25 18:52:26,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:52:26,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582301239] [2021-11-25 18:52:26,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:52:26,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:52:26,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:52:26,830 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:52:26,830 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:52:26,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582301239] [2021-11-25 18:52:26,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582301239] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:52:26,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:52:26,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:52:26,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744132461] [2021-11-25 18:52:26,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:52:26,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:52:26,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:52:26,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:52:26,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:52:26,832 INFO L87 Difference]: Start difference. First operand 220 states and 511 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 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 18:52:26,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:52:26,895 INFO L93 Difference]: Finished difference Result 316 states and 719 transitions. [2021-11-25 18:52:26,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:52:26,895 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 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 16 [2021-11-25 18:52:26,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:52:26,898 INFO L225 Difference]: With dead ends: 316 [2021-11-25 18:52:26,898 INFO L226 Difference]: Without dead ends: 316 [2021-11-25 18:52:26,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:52:26,899 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 36 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:52:26,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 3 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:52:26,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2021-11-25 18:52:26,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 220. [2021-11-25 18:52:26,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 218 states have (on average 2.302752293577982) internal successors, (502), 219 states have internal predecessors, (502), 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 18:52:26,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 502 transitions. [2021-11-25 18:52:26,916 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 502 transitions. Word has length 16 [2021-11-25 18:52:26,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:52:26,916 INFO L470 AbstractCegarLoop]: Abstraction has 220 states and 502 transitions. [2021-11-25 18:52:26,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 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 18:52:26,917 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 502 transitions. [2021-11-25 18:52:26,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-25 18:52:26,922 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:52:26,922 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:52:26,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 18:52:26,923 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 18:52:26,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:52:26,923 INFO L85 PathProgramCache]: Analyzing trace with hash 602066941, now seen corresponding path program 1 times [2021-11-25 18:52:26,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:52:26,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493356023] [2021-11-25 18:52:26,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:52:26,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:52:26,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:52:27,126 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:52:27,126 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:52:27,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493356023] [2021-11-25 18:52:27,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493356023] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:52:27,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134608146] [2021-11-25 18:52:27,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:52:27,127 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:52:27,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:52:27,129 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:52:27,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 18:52:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:52:27,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 41 conjunts are in the unsatisfiable core [2021-11-25 18:52:27,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:52:27,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 18:52:27,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-11-25 18:52:27,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 18:52:27,824 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:52:27,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:52:28,079 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:52:28,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134608146] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-25 18:52:28,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-25 18:52:28,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 8] total 20 [2021-11-25 18:52:28,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015282480] [2021-11-25 18:52:28,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:52:28,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 18:52:28,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:52:28,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 18:52:28,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2021-11-25 18:52:28,081 INFO L87 Difference]: Start difference. First operand 220 states and 502 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 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 18:52:28,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:52:28,222 INFO L93 Difference]: Finished difference Result 402 states and 911 transitions. [2021-11-25 18:52:28,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 18:52:28,222 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 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) Word has length 17 [2021-11-25 18:52:28,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:52:28,225 INFO L225 Difference]: With dead ends: 402 [2021-11-25 18:52:28,226 INFO L226 Difference]: Without dead ends: 402 [2021-11-25 18:52:28,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=105, Invalid=447, Unknown=0, NotChecked=0, Total=552 [2021-11-25 18:52:28,227 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 33 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 118 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:52:28,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 6 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 105 Invalid, 0 Unknown, 118 Unchecked, 0.1s Time] [2021-11-25 18:52:28,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2021-11-25 18:52:28,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 254. [2021-11-25 18:52:28,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 252 states have (on average 2.3253968253968256) internal successors, (586), 253 states have internal predecessors, (586), 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 18:52:28,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 586 transitions. [2021-11-25 18:52:28,241 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 586 transitions. Word has length 17 [2021-11-25 18:52:28,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:52:28,242 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 586 transitions. [2021-11-25 18:52:28,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 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 18:52:28,243 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 586 transitions. [2021-11-25 18:52:28,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-25 18:52:28,244 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:52:28,245 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:52:28,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 18:52:28,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:52:28,466 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 18:52:28,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:52:28,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1686784253, now seen corresponding path program 2 times [2021-11-25 18:52:28,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:52:28,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287321863] [2021-11-25 18:52:28,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:52:28,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:52:28,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:52:28,606 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:52:28,606 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:52:28,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287321863] [2021-11-25 18:52:28,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287321863] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:52:28,607 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:52:28,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 18:52:28,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008430807] [2021-11-25 18:52:28,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:52:28,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 18:52:28,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:52:28,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 18:52:28,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-25 18:52:28,609 INFO L87 Difference]: Start difference. First operand 254 states and 586 transitions. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 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 18:52:29,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:52:29,142 INFO L93 Difference]: Finished difference Result 606 states and 1379 transitions. [2021-11-25 18:52:29,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-25 18:52:29,143 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 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) Word has length 17 [2021-11-25 18:52:29,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:52:29,147 INFO L225 Difference]: With dead ends: 606 [2021-11-25 18:52:29,147 INFO L226 Difference]: Without dead ends: 606 [2021-11-25 18:52:29,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=175, Invalid=377, Unknown=0, NotChecked=0, Total=552 [2021-11-25 18:52:29,150 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 115 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:52:29,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 5 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-25 18:52:29,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2021-11-25 18:52:29,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 354. [2021-11-25 18:52:29,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 352 states have (on average 2.3579545454545454) internal successors, (830), 353 states have internal predecessors, (830), 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 18:52:29,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 830 transitions. [2021-11-25 18:52:29,169 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 830 transitions. Word has length 17 [2021-11-25 18:52:29,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:52:29,169 INFO L470 AbstractCegarLoop]: Abstraction has 354 states and 830 transitions. [2021-11-25 18:52:29,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 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 18:52:29,170 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 830 transitions. [2021-11-25 18:52:29,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-25 18:52:29,172 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:52:29,172 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:52:29,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 18:52:29,173 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 18:52:29,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:52:29,174 INFO L85 PathProgramCache]: Analyzing trace with hash 379446113, now seen corresponding path program 1 times [2021-11-25 18:52:29,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:52:29,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728255112] [2021-11-25 18:52:29,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:52:29,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:52:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:52:29,321 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:52:29,322 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:52:29,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728255112] [2021-11-25 18:52:29,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728255112] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:52:29,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929933904] [2021-11-25 18:52:29,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:52:29,323 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:52:29,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:52:29,326 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:52:29,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 18:52:29,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:52:29,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 71 conjunts are in the unsatisfiable core [2021-11-25 18:52:29,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:52:29,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2021-11-25 18:52:29,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:52:29,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 18:52:29,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-25 18:52:29,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-25 18:52:29,787 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:52:29,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:52:29,944 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:52:29,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929933904] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:52:29,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [323945002] [2021-11-25 18:52:29,952 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 18:52:29,954 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 18:52:29,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 21 [2021-11-25 18:52:29,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64603866] [2021-11-25 18:52:29,955 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 18:52:29,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-25 18:52:29,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:52:29,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-25 18:52:29,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2021-11-25 18:52:29,957 INFO L87 Difference]: Start difference. First operand 354 states and 830 transitions. Second operand has 22 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 22 states have internal predecessors, (56), 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 18:52:31,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:52:31,062 INFO L93 Difference]: Finished difference Result 1001 states and 2173 transitions. [2021-11-25 18:52:31,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-25 18:52:31,064 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 22 states have internal predecessors, (56), 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 18:52:31,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:52:31,071 INFO L225 Difference]: With dead ends: 1001 [2021-11-25 18:52:31,071 INFO L226 Difference]: Without dead ends: 943 [2021-11-25 18:52:31,072 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=282, Invalid=1050, Unknown=0, NotChecked=0, Total=1332 [2021-11-25 18:52:31,073 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 363 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 18:52:31,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [363 Valid, 39 Invalid, 966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-25 18:52:31,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2021-11-25 18:52:31,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 563. [2021-11-25 18:52:31,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 561 states have (on average 2.242424242424242) internal successors, (1258), 562 states have internal predecessors, (1258), 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 18:52:31,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 1258 transitions. [2021-11-25 18:52:31,100 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 1258 transitions. Word has length 19 [2021-11-25 18:52:31,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:52:31,100 INFO L470 AbstractCegarLoop]: Abstraction has 563 states and 1258 transitions. [2021-11-25 18:52:31,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 22 states have internal predecessors, (56), 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 18:52:31,101 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 1258 transitions. [2021-11-25 18:52:31,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-25 18:52:31,102 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:52:31,102 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:52:31,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 18:52:31,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-25 18:52:31,322 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 18:52:31,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:52:31,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1402556404, now seen corresponding path program 3 times [2021-11-25 18:52:31,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:52:31,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981829968] [2021-11-25 18:52:31,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:52:31,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:52:31,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:52:31,555 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:52:31,556 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:52:31,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981829968] [2021-11-25 18:52:31,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981829968] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:52:31,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042065435] [2021-11-25 18:52:31,557 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-25 18:52:31,557 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:52:31,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:52:31,562 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:52:31,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 18:52:31,649 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-25 18:52:31,649 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 18:52:31,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-25 18:52:31,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:52:31,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 18:52:31,706 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 18:52:31,707 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:52:31,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042065435] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:52:31,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 18:52:31,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2021-11-25 18:52:31,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874920271] [2021-11-25 18:52:31,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:52:31,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:52:31,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:52:31,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:52:31,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-25 18:52:31,709 INFO L87 Difference]: Start difference. First operand 563 states and 1258 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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 18:52:31,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:52:31,742 INFO L93 Difference]: Finished difference Result 86 states and 125 transitions. [2021-11-25 18:52:31,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:52:31,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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 22 [2021-11-25 18:52:31,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:52:31,744 INFO L225 Difference]: With dead ends: 86 [2021-11-25 18:52:31,744 INFO L226 Difference]: Without dead ends: 83 [2021-11-25 18:52:31,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-25 18:52:31,745 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 13 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:52:31,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 3 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:52:31,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-11-25 18:52:31,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 68. [2021-11-25 18:52:31,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.462686567164179) internal successors, (98), 67 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 18:52:31,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 98 transitions. [2021-11-25 18:52:31,749 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 98 transitions. Word has length 22 [2021-11-25 18:52:31,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:52:31,751 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 98 transitions. [2021-11-25 18:52:31,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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 18:52:31,751 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 98 transitions. [2021-11-25 18:52:31,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-25 18:52:31,752 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:52:31,752 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:52:31,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 18:52:31,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-25 18:52:31,966 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 18:52:31,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:52:31,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1218166721, now seen corresponding path program 2 times [2021-11-25 18:52:31,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:52:31,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323136821] [2021-11-25 18:52:31,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:52:31,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:52:31,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:52:32,232 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:52:32,233 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:52:32,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323136821] [2021-11-25 18:52:32,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323136821] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:52:32,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905721873] [2021-11-25 18:52:32,233 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 18:52:32,233 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:52:32,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:52:32,234 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:52:32,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 18:52:32,397 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-25 18:52:32,397 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 18:52:32,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 55 conjunts are in the unsatisfiable core [2021-11-25 18:52:32,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:52:32,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-11-25 18:52:32,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2021-11-25 18:52:32,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-11-25 18:52:32,922 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:52:32,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:52:33,297 INFO L354 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2021-11-25 18:52:33,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 36 [2021-11-25 18:52:33,313 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:52:33,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [905721873] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:52:33,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1376666303] [2021-11-25 18:52:33,314 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 18:52:33,314 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 18:52:33,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 33 [2021-11-25 18:52:33,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219651449] [2021-11-25 18:52:33,315 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 18:52:33,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-25 18:52:33,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:52:33,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-25 18:52:33,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=831, Unknown=0, NotChecked=0, Total=1056 [2021-11-25 18:52:33,320 INFO L87 Difference]: Start difference. First operand 68 states and 98 transitions. Second operand has 33 states, 33 states have (on average 2.212121212121212) internal successors, (73), 33 states have internal predecessors, (73), 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 18:52:33,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:52:33,872 INFO L93 Difference]: Finished difference Result 106 states and 150 transitions. [2021-11-25 18:52:33,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-25 18:52:33,882 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.212121212121212) internal successors, (73), 33 states have internal predecessors, (73), 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 29 [2021-11-25 18:52:33,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:52:33,883 INFO L225 Difference]: With dead ends: 106 [2021-11-25 18:52:33,883 INFO L226 Difference]: Without dead ends: 0 [2021-11-25 18:52:33,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=476, Invalid=1330, Unknown=0, NotChecked=0, Total=1806 [2021-11-25 18:52:33,885 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 127 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 88 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:52:33,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 89 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 412 Invalid, 0 Unknown, 88 Unchecked, 0.3s Time] [2021-11-25 18:52:33,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-25 18:52:33,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-25 18:52:33,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 18:52:33,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-25 18:52:33,886 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2021-11-25 18:52:33,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:52:33,887 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-25 18:52:33,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.212121212121212) internal successors, (73), 33 states have internal predecessors, (73), 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 18:52:33,887 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-25 18:52:33,887 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-25 18:52:33,889 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 5 remaining) [2021-11-25 18:52:33,890 INFO L764 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2021-11-25 18:52:33,890 INFO L764 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2021-11-25 18:52:33,890 INFO L764 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2021-11-25 18:52:33,890 INFO L764 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2021-11-25 18:52:33,912 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-25 18:52:34,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:52:34,107 INFO L732 BasicCegarLoop]: Path program histogram: [3, 3, 2, 1, 1, 1, 1] [2021-11-25 18:52:34,111 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-25 18:52:34,111 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 18:52:34,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:52:34 BasicIcfg [2021-11-25 18:52:34,113 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 18:52:34,114 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 18:52:34,114 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 18:52:34,115 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 18:52:34,115 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:52:19" (3/4) ... [2021-11-25 18:52:34,118 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-25 18:52:34,124 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure worker [2021-11-25 18:52:34,128 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-11-25 18:52:34,129 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-25 18:52:34,129 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-25 18:52:34,129 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-25 18:52:34,176 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7/witness.graphml [2021-11-25 18:52:34,176 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 18:52:34,177 INFO L158 Benchmark]: Toolchain (without parser) took 15854.21ms. Allocated memory was 113.2MB in the beginning and 142.6MB in the end (delta: 29.4MB). Free memory was 77.2MB in the beginning and 59.5MB in the end (delta: 17.6MB). Peak memory consumption was 45.9MB. Max. memory is 16.1GB. [2021-11-25 18:52:34,178 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 113.2MB. Free memory was 94.8MB in the beginning and 94.6MB in the end (delta: 129.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 18:52:34,178 INFO L158 Benchmark]: CACSL2BoogieTranslator took 506.98ms. Allocated memory is still 113.2MB. Free memory was 77.0MB in the beginning and 78.9MB in the end (delta: -1.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-25 18:52:34,181 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.79ms. Allocated memory is still 113.2MB. Free memory was 78.9MB in the beginning and 76.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 18:52:34,182 INFO L158 Benchmark]: Boogie Preprocessor took 29.69ms. Allocated memory is still 113.2MB. Free memory was 76.8MB in the beginning and 75.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 18:52:34,182 INFO L158 Benchmark]: RCFGBuilder took 567.95ms. Allocated memory is still 113.2MB. Free memory was 75.2MB in the beginning and 61.3MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-25 18:52:34,182 INFO L158 Benchmark]: TraceAbstraction took 14634.07ms. Allocated memory was 113.2MB in the beginning and 142.6MB in the end (delta: 29.4MB). Free memory was 60.9MB in the beginning and 62.4MB in the end (delta: -1.5MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2021-11-25 18:52:34,183 INFO L158 Benchmark]: Witness Printer took 62.29ms. Allocated memory is still 142.6MB. Free memory was 62.4MB in the beginning and 59.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 18:52:34,185 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 113.2MB. Free memory was 94.8MB in the beginning and 94.6MB in the end (delta: 129.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 506.98ms. Allocated memory is still 113.2MB. Free memory was 77.0MB in the beginning and 78.9MB in the end (delta: -1.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.79ms. Allocated memory is still 113.2MB. Free memory was 78.9MB in the beginning and 76.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.69ms. Allocated memory is still 113.2MB. Free memory was 76.8MB in the beginning and 75.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 567.95ms. Allocated memory is still 113.2MB. Free memory was 75.2MB in the beginning and 61.3MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 14634.07ms. Allocated memory was 113.2MB in the beginning and 142.6MB in the end (delta: 29.4MB). Free memory was 60.9MB in the beginning and 62.4MB in the end (delta: -1.5MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 62.29ms. Allocated memory is still 142.6MB. Free memory was 62.4MB in the beginning and 59.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.7s, 136 PlacesBefore, 26 PlacesAfterwards, 142 TransitionsBefore, 28 TransitionsAfterwards, 4712 CoEnabledTransitionPairs, 6 FixpointIterations, 39 TrivialSequentialCompositions, 71 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 27 ConcurrentYvCompositions, 4 ChoiceCompositions, 141 TotalNumberOfCompositions, 6332 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4864, positive: 4710, positive conditional: 0, positive unconditional: 4710, negative: 154, negative conditional: 0, negative unconditional: 154, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3378, positive: 3314, positive conditional: 0, positive unconditional: 3314, negative: 64, negative conditional: 0, negative unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3378, positive: 3302, positive conditional: 0, positive unconditional: 3302, negative: 76, negative conditional: 0, negative unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 76, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 64, negative conditional: 0, negative unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 227, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 188, negative conditional: 0, negative unconditional: 188, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4864, positive: 1396, positive conditional: 0, positive unconditional: 1396, negative: 90, negative conditional: 0, negative unconditional: 90, unknown: 3378, unknown conditional: 0, unknown unconditional: 3378] , Statistics on independence cache: Total cache size (in pairs): 186, Positive cache size: 165, Positive conditional cache size: 0, Positive unconditional cache size: 165, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 190 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 14.4s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.8s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 894 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 894 mSDsluCounter, 185 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 206 IncrementalHoareTripleChecker+Unchecked, 578 mSDsCounter, 200 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2682 IncrementalHoareTripleChecker+Invalid, 3088 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 200 mSolverCounterUnsat, 29 mSDtfsCounter, 2682 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 305 GetRequests, 144 SyntacticMatches, 2 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1112 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=563occurred in iteration=10, InterpolantAutomatonStates: 116, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 1100 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 264 NumberOfCodeBlocks, 260 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 310 ConstructedInterpolants, 14 QuantifiedInterpolants, 2975 SizeOfPredicates, 75 NumberOfNonLiveVariables, 825 ConjunctsInSsa, 189 ConjunctsInUnsatCore, 19 InterpolantComputations, 10 PerfectInterpolantSequences, 81/103 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-25 18:52:34,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddba502-cb17-4b7f-bc32-71668d9c56ed/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE