./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-deagle/floating_read-25.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-deagle/floating_read-25.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs --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 778e3ae04d32637f959b85d1a08971a3e61432e093e04b2798423806241a3f5a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:05:57,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:05:57,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:05:57,931 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:05:57,932 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:05:57,933 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:05:57,935 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:05:57,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:05:57,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:05:57,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:05:57,946 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:05:57,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:05:57,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:05:57,956 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:05:57,958 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:05:57,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:05:57,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:05:57,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:05:57,970 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:05:57,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:05:57,979 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:05:57,981 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:05:57,983 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:05:57,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:05:57,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:05:57,990 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:05:57,990 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:05:57,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:05:57,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:05:57,994 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:05:57,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:05:57,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:05:57,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:05:57,999 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:05:58,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:05:58,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:05:58,002 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:05:58,003 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:05:58,003 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:05:58,004 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:05:58,005 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:05:58,007 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-19 15:05:58,052 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:05:58,055 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:05:58,058 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:05:58,058 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:05:58,058 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:05:58,059 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:05:58,059 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:05:58,059 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 15:05:58,067 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:05:58,067 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:05:58,068 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 15:05:58,068 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 15:05:58,068 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:05:58,069 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 15:05:58,069 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 15:05:58,070 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 15:05:58,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:05:58,072 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 15:05:58,072 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 15:05:58,072 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 15:05:58,073 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:05:58,073 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:05:58,073 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:05:58,073 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:05:58,074 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:05:58,074 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 15:05:58,074 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:05:58,074 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:05:58,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:05:58,077 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:05:58,077 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:05:58,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:05:58,078 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:05:58,078 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:05:58,079 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:05:58,079 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 15:05:58,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 15:05:58,079 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:05:58,080 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:05:58,080 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:05:58,080 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_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 778e3ae04d32637f959b85d1a08971a3e61432e093e04b2798423806241a3f5a [2021-11-19 15:05:58,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:05:58,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:05:58,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:05:58,412 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:05:58,413 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:05:58,415 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/pthread-deagle/floating_read-25.i [2021-11-19 15:05:58,485 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/data/3c013f214/997b83abf7254caa8680ccbb5472ee18/FLAGd7a27d465 [2021-11-19 15:05:59,139 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:05:59,139 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/sv-benchmarks/c/pthread-deagle/floating_read-25.i [2021-11-19 15:05:59,160 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/data/3c013f214/997b83abf7254caa8680ccbb5472ee18/FLAGd7a27d465 [2021-11-19 15:05:59,367 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/data/3c013f214/997b83abf7254caa8680ccbb5472ee18 [2021-11-19 15:05:59,370 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:05:59,373 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:05:59,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:05:59,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:05:59,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:05:59,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:05:59" (1/1) ... [2021-11-19 15:05:59,386 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36b42e90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:05:59, skipping insertion in model container [2021-11-19 15:05:59,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:05:59" (1/1) ... [2021-11-19 15:05:59,399 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:05:59,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:05:59,899 WARN L1537 CHandler]: Possible shadowing of function thread [2021-11-19 15:05:59,909 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_0fe17b52-da67-4493-b80d-362385618e7d/sv-benchmarks/c/pthread-deagle/floating_read-25.i[31197,31210] [2021-11-19 15:05:59,916 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:05:59,932 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 15:06:00,013 WARN L1537 CHandler]: Possible shadowing of function thread [2021-11-19 15:06:00,019 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_0fe17b52-da67-4493-b80d-362385618e7d/sv-benchmarks/c/pthread-deagle/floating_read-25.i[31197,31210] [2021-11-19 15:06:00,021 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:06:00,075 INFO L208 MainTranslator]: Completed translation [2021-11-19 15:06:00,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:06:00 WrapperNode [2021-11-19 15:06:00,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:06:00,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 15:06:00,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 15:06:00,077 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 15:06:00,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:06:00" (1/1) ... [2021-11-19 15:06:00,118 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:06:00" (1/1) ... [2021-11-19 15:06:00,145 INFO L137 Inliner]: procedures = 162, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2021-11-19 15:06:00,145 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 15:06:00,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 15:06:00,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 15:06:00,147 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 15:06:00,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:06:00" (1/1) ... [2021-11-19 15:06:00,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:06:00" (1/1) ... [2021-11-19 15:06:00,167 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:06:00" (1/1) ... [2021-11-19 15:06:00,167 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:06:00" (1/1) ... [2021-11-19 15:06:00,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:06:00" (1/1) ... [2021-11-19 15:06:00,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:06:00" (1/1) ... [2021-11-19 15:06:00,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:06:00" (1/1) ... [2021-11-19 15:06:00,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 15:06:00,196 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 15:06:00,196 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 15:06:00,196 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 15:06:00,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:06:00" (1/1) ... [2021-11-19 15:06:00,213 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:06:00,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:06:00,242 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 15:06:00,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 15:06:00,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-19 15:06:00,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 15:06:00,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-19 15:06:00,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 15:06:00,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 15:06:00,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 15:06:00,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 15:06:00,288 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-11-19 15:06:00,288 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-11-19 15:06:00,288 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-19 15:06:00,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 15:06:00,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 15:06:00,291 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-19 15:06:00,418 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 15:06:00,420 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 15:06:00,602 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 15:06:00,623 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 15:06:00,623 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-19 15:06:00,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:06:00 BoogieIcfgContainer [2021-11-19 15:06:00,626 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 15:06:00,630 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 15:06:00,630 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 15:06:00,634 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 15:06:00,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:05:59" (1/3) ... [2021-11-19 15:06:00,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cb108a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:06:00, skipping insertion in model container [2021-11-19 15:06:00,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:06:00" (2/3) ... [2021-11-19 15:06:00,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cb108a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:06:00, skipping insertion in model container [2021-11-19 15:06:00,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:06:00" (3/3) ... [2021-11-19 15:06:00,639 INFO L111 eAbstractionObserver]: Analyzing ICFG floating_read-25.i [2021-11-19 15:06:00,645 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-19 15:06:00,646 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 15:06:00,646 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 15:06:00,646 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-19 15:06:00,690 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:00,690 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:00,691 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:00,691 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:00,691 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:00,692 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:00,692 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:00,692 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:00,693 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:00,693 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:00,693 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:00,693 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:00,694 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:00,694 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:00,694 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:00,695 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:00,695 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:00,696 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:00,696 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:00,696 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:00,701 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:00,701 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:00,702 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:00,702 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:00,702 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:00,707 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-19 15:06:00,776 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:06:00,794 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 [2021-11-19 15:06:00,795 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-19 15:06:00,811 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-19 15:06:00,828 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 59 transitions, 126 flow [2021-11-19 15:06:00,832 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 59 transitions, 126 flow [2021-11-19 15:06:00,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 59 transitions, 126 flow [2021-11-19 15:06:00,889 INFO L129 PetriNetUnfolder]: 7/81 cut-off events. [2021-11-19 15:06:00,889 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-19 15:06:00,893 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 81 events. 7/81 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 104 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 42. Up to 4 conditions per place. [2021-11-19 15:06:00,896 INFO L116 LiptonReduction]: Number of co-enabled transitions 280 [2021-11-19 15:06:02,858 INFO L131 LiptonReduction]: Checked pairs total: 352 [2021-11-19 15:06:02,858 INFO L133 LiptonReduction]: Total number of compositions: 52 [2021-11-19 15:06:02,871 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 14 places, 12 transitions, 32 flow [2021-11-19 15:06:02,892 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 14 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:02,894 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:02,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-19 15:06:02,901 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:02,902 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-19 15:06:02,904 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:02,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:02,922 INFO L85 PathProgramCache]: Analyzing trace with hash 7338, now seen corresponding path program 1 times [2021-11-19 15:06:02,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:02,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527417748] [2021-11-19 15:06:02,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:02,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:03,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:03,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:03,116 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:03,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527417748] [2021-11-19 15:06:03,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527417748] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:06:03,118 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:06:03,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-19 15:06:03,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727604244] [2021-11-19 15:06:03,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:06:03,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:06:03,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:03,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:06:03,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:06:03,165 INFO L87 Difference]: Start difference. First operand has 14 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:03,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:03,207 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2021-11-19 15:06:03,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:06:03,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-11-19 15:06:03,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:03,219 INFO L225 Difference]: With dead ends: 12 [2021-11-19 15:06:03,219 INFO L226 Difference]: Without dead ends: 12 [2021-11-19 15:06:03,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:06:03,224 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 4 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:03,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 2 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:06:03,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-11-19 15:06:03,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-11-19 15:06:03,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:03,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2021-11-19 15:06:03,280 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 2 [2021-11-19 15:06:03,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:03,281 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2021-11-19 15:06:03,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:03,281 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2021-11-19 15:06:03,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-19 15:06:03,282 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:03,282 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-19 15:06:03,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 15:06:03,282 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:03,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:03,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1792867688, now seen corresponding path program 1 times [2021-11-19 15:06:03,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:03,284 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992134285] [2021-11-19 15:06:03,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:03,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:03,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:03,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:03,369 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:03,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992134285] [2021-11-19 15:06:03,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992134285] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:06:03,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115990896] [2021-11-19 15:06:03,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:03,373 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:03,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:06:03,387 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:06:03,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-19 15:06:03,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:03,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 15:06:03,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:03,575 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:03,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:03,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:03,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115990896] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:06:03,608 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1313630783] [2021-11-19 15:06:03,616 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) [2021-11-19 15:06:03,618 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:06:03,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2021-11-19 15:06:03,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776003589] [2021-11-19 15:06:03,620 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 15:06:03,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 15:06:03,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:03,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 15:06:03,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:06:03,622 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:03,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:03,641 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2021-11-19 15:06:03,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:06:03,642 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-19 15:06:03,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:03,643 INFO L225 Difference]: With dead ends: 11 [2021-11-19 15:06:03,643 INFO L226 Difference]: Without dead ends: 11 [2021-11-19 15:06:03,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:06:03,645 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:03,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 3 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:06:03,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-11-19 15:06:03,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-11-19 15:06:03,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:03,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2021-11-19 15:06:03,650 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 6 [2021-11-19 15:06:03,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:03,651 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-11-19 15:06:03,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:03,651 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2021-11-19 15:06:03,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-19 15:06:03,652 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:03,652 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2021-11-19 15:06:03,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-19 15:06:03,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:03,886 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:03,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:03,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1792867688, now seen corresponding path program 1 times [2021-11-19 15:06:03,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:03,887 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162665036] [2021-11-19 15:06:03,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:03,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:03,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 15:06:03,921 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 15:06:03,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 15:06:03,998 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-19 15:06:03,998 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 15:06:03,999 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-19 15:06:04,001 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-19 15:06:04,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-19 15:06:04,006 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-19 15:06:04,017 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-19 15:06:04,017 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-11-19 15:06:04,032 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,033 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,033 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,033 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,033 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,033 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,034 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,034 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,034 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,034 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,034 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,035 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,035 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,035 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,035 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,035 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,036 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,036 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,036 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,036 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,037 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,037 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,037 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,037 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,037 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,037 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,038 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,038 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,038 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,038 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,038 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,039 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,039 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,039 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,039 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,040 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,043 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,043 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,043 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,044 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,045 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,046 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,046 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,046 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,048 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,053 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,055 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,056 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,056 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,057 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:04,060 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-11-19 15:06:04,066 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:06:04,068 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 [2021-11-19 15:06:04,068 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-19 15:06:04,071 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-19 15:06:04,071 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 66 transitions, 150 flow [2021-11-19 15:06:04,072 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 66 transitions, 150 flow [2021-11-19 15:06:04,072 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 66 transitions, 150 flow [2021-11-19 15:06:04,104 INFO L129 PetriNetUnfolder]: 13/135 cut-off events. [2021-11-19 15:06:04,104 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-11-19 15:06:04,106 INFO L84 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 135 events. 13/135 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 228 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 83. Up to 8 conditions per place. [2021-11-19 15:06:04,109 INFO L116 LiptonReduction]: Number of co-enabled transitions 720 [2021-11-19 15:06:05,871 INFO L131 LiptonReduction]: Checked pairs total: 917 [2021-11-19 15:06:05,872 INFO L133 LiptonReduction]: Total number of compositions: 54 [2021-11-19 15:06:05,873 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 20 places, 17 transitions, 52 flow [2021-11-19 15:06:05,882 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 38 states, 34 states have (on average 1.8529411764705883) internal successors, (63), 37 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:05,884 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 34 states have (on average 1.8529411764705883) internal successors, (63), 37 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:05,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-19 15:06:05,886 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:05,886 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-19 15:06:05,886 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:05,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:05,892 INFO L85 PathProgramCache]: Analyzing trace with hash 11412, now seen corresponding path program 1 times [2021-11-19 15:06:05,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:05,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185746654] [2021-11-19 15:06:05,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:05,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:05,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:05,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:05,945 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:05,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185746654] [2021-11-19 15:06:05,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185746654] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:06:05,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:06:05,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-19 15:06:05,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621186313] [2021-11-19 15:06:05,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:06:05,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:06:05,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:05,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:06:05,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:06:05,952 INFO L87 Difference]: Start difference. First operand has 38 states, 34 states have (on average 1.8529411764705883) internal successors, (63), 37 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:05,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:05,978 INFO L93 Difference]: Finished difference Result 35 states and 57 transitions. [2021-11-19 15:06:05,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:06:05,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-11-19 15:06:05,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:05,982 INFO L225 Difference]: With dead ends: 35 [2021-11-19 15:06:05,982 INFO L226 Difference]: Without dead ends: 35 [2021-11-19 15:06:05,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:06:05,985 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:05,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 4 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:06:05,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-11-19 15:06:06,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-11-19 15:06:06,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 32 states have (on average 1.78125) internal successors, (57), 34 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:06,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 57 transitions. [2021-11-19 15:06:06,003 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 57 transitions. Word has length 2 [2021-11-19 15:06:06,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:06,004 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 57 transitions. [2021-11-19 15:06:06,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:06,004 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 57 transitions. [2021-11-19 15:06:06,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-19 15:06:06,005 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:06,005 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:06,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-19 15:06:06,006 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:06,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:06,006 INFO L85 PathProgramCache]: Analyzing trace with hash 614783609, now seen corresponding path program 1 times [2021-11-19 15:06:06,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:06,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782567424] [2021-11-19 15:06:06,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:06,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:06,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:06,071 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:06,071 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:06,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782567424] [2021-11-19 15:06:06,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782567424] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:06:06,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247665039] [2021-11-19 15:06:06,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:06,072 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:06,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:06:06,074 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:06:06,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-19 15:06:06,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:06,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 15:06:06,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:06,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:06,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:06,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:06,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247665039] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:06:06,300 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1232996783] [2021-11-19 15:06:06,301 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) [2021-11-19 15:06:06,302 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:06:06,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2021-11-19 15:06:06,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467430120] [2021-11-19 15:06:06,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 15:06:06,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 15:06:06,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:06,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 15:06:06,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-19 15:06:06,305 INFO L87 Difference]: Start difference. First operand 35 states and 57 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:06,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:06,403 INFO L93 Difference]: Finished difference Result 39 states and 58 transitions. [2021-11-19 15:06:06,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 15:06:06,405 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-19 15:06:06,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:06,406 INFO L225 Difference]: With dead ends: 39 [2021-11-19 15:06:06,406 INFO L226 Difference]: Without dead ends: 39 [2021-11-19 15:06:06,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2021-11-19 15:06:06,409 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 49 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:06,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 8 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:06:06,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-11-19 15:06:06,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2021-11-19 15:06:06,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 35 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:06,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 57 transitions. [2021-11-19 15:06:06,418 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 57 transitions. Word has length 7 [2021-11-19 15:06:06,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:06,418 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 57 transitions. [2021-11-19 15:06:06,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:06,419 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 57 transitions. [2021-11-19 15:06:06,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 15:06:06,420 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:06,420 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2021-11-19 15:06:06,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-19 15:06:06,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:06,646 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:06,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:06,646 INFO L85 PathProgramCache]: Analyzing trace with hash 174122691, now seen corresponding path program 1 times [2021-11-19 15:06:06,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:06,647 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437862415] [2021-11-19 15:06:06,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:06,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:06,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:06,761 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:06,761 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:06,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437862415] [2021-11-19 15:06:06,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437862415] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:06:06,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343797765] [2021-11-19 15:06:06,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:06,762 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:06,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:06:06,764 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:06:06,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-19 15:06:06,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:06,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 15:06:06,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:06,913 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:06,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:06,988 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:06,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343797765] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:06:06,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1903520845] [2021-11-19 15:06:06,989 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) [2021-11-19 15:06:06,989 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:06:06,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4] total 10 [2021-11-19 15:06:06,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583681471] [2021-11-19 15:06:06,990 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 15:06:06,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 15:06:06,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:06,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 15:06:06,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-11-19 15:06:06,992 INFO L87 Difference]: Start difference. First operand 36 states and 57 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:07,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:07,085 INFO L93 Difference]: Finished difference Result 36 states and 55 transitions. [2021-11-19 15:06:07,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 15:06:07,085 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-19 15:06:07,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:07,088 INFO L225 Difference]: With dead ends: 36 [2021-11-19 15:06:07,089 INFO L226 Difference]: Without dead ends: 36 [2021-11-19 15:06:07,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-11-19 15:06:07,093 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 45 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:07,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 11 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:06:07,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-11-19 15:06:07,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2021-11-19 15:06:07,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.7) internal successors, (51), 30 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:07,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 51 transitions. [2021-11-19 15:06:07,116 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 51 transitions. Word has length 11 [2021-11-19 15:06:07,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:07,119 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 51 transitions. [2021-11-19 15:06:07,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:07,119 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2021-11-19 15:06:07,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 15:06:07,120 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:07,120 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2021-11-19 15:06:07,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-19 15:06:07,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-19 15:06:07,333 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:07,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:07,334 INFO L85 PathProgramCache]: Analyzing trace with hash 172180620, now seen corresponding path program 1 times [2021-11-19 15:06:07,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:07,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982706989] [2021-11-19 15:06:07,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:07,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:07,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 15:06:07,349 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 15:06:07,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 15:06:07,367 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-19 15:06:07,367 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 15:06:07,367 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-19 15:06:07,367 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-19 15:06:07,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-19 15:06:07,368 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-19 15:06:07,368 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-19 15:06:07,368 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-11-19 15:06:07,376 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,377 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,377 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,377 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,377 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,377 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,377 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,377 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,378 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,378 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,378 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,378 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,378 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,378 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,378 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,379 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,379 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,379 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,379 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,379 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,379 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,379 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,380 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,380 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,380 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,380 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,380 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,380 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,380 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,380 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,381 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,381 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,381 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,381 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,381 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,381 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,381 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,381 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,382 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,382 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,382 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,382 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,382 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,382 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,382 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,383 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,383 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,383 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,383 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,383 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,383 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,383 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,383 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,384 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,384 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,384 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,384 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,384 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,384 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,384 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,385 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,385 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,385 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,385 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,385 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,386 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,386 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,386 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,386 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,387 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,387 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,387 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,387 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,387 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,388 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:07,389 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-11-19 15:06:07,390 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:06:07,391 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 [2021-11-19 15:06:07,391 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-19 15:06:07,393 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-19 15:06:07,393 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 73 transitions, 176 flow [2021-11-19 15:06:07,393 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 73 transitions, 176 flow [2021-11-19 15:06:07,393 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 73 transitions, 176 flow [2021-11-19 15:06:07,469 INFO L129 PetriNetUnfolder]: 24/222 cut-off events. [2021-11-19 15:06:07,470 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2021-11-19 15:06:07,471 INFO L84 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 222 events. 24/222 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 505 event pairs, 1 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 143. Up to 16 conditions per place. [2021-11-19 15:06:07,476 INFO L116 LiptonReduction]: Number of co-enabled transitions 1200 [2021-11-19 15:06:09,192 INFO L131 LiptonReduction]: Checked pairs total: 1580 [2021-11-19 15:06:09,192 INFO L133 LiptonReduction]: Total number of compositions: 58 [2021-11-19 15:06:09,193 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 20 transitions, 70 flow [2021-11-19 15:06:09,201 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 82 states, 77 states have (on average 2.220779220779221) internal successors, (171), 81 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:09,202 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 77 states have (on average 2.220779220779221) internal successors, (171), 81 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:09,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-19 15:06:09,203 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:09,203 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-19 15:06:09,203 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:09,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:09,204 INFO L85 PathProgramCache]: Analyzing trace with hash 15819, now seen corresponding path program 1 times [2021-11-19 15:06:09,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:09,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240441003] [2021-11-19 15:06:09,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:09,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:09,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:09,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:09,223 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:09,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240441003] [2021-11-19 15:06:09,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240441003] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:06:09,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:06:09,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-19 15:06:09,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967541914] [2021-11-19 15:06:09,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:06:09,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:06:09,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:09,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:06:09,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:06:09,226 INFO L87 Difference]: Start difference. First operand has 82 states, 77 states have (on average 2.220779220779221) internal successors, (171), 81 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:09,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:09,261 INFO L93 Difference]: Finished difference Result 81 states and 170 transitions. [2021-11-19 15:06:09,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:06:09,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-11-19 15:06:09,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:09,270 INFO L225 Difference]: With dead ends: 81 [2021-11-19 15:06:09,270 INFO L226 Difference]: Without dead ends: 81 [2021-11-19 15:06:09,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:06:09,272 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:09,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:06:09,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-11-19 15:06:09,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2021-11-19 15:06:09,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 77 states have (on average 2.207792207792208) internal successors, (170), 80 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:09,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 170 transitions. [2021-11-19 15:06:09,290 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 170 transitions. Word has length 2 [2021-11-19 15:06:09,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:09,290 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 170 transitions. [2021-11-19 15:06:09,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:09,290 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 170 transitions. [2021-11-19 15:06:09,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-19 15:06:09,291 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:09,291 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-19 15:06:09,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-19 15:06:09,291 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:09,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:09,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1743099183, now seen corresponding path program 1 times [2021-11-19 15:06:09,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:09,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733527843] [2021-11-19 15:06:09,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:09,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:09,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:09,344 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 15:06:09,345 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:09,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733527843] [2021-11-19 15:06:09,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733527843] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:06:09,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:06:09,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-19 15:06:09,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249768115] [2021-11-19 15:06:09,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:06:09,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:06:09,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:09,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:06:09,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:06:09,347 INFO L87 Difference]: Start difference. First operand 81 states and 170 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:09,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:09,373 INFO L93 Difference]: Finished difference Result 78 states and 161 transitions. [2021-11-19 15:06:09,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:06:09,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-19 15:06:09,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:09,375 INFO L225 Difference]: With dead ends: 78 [2021-11-19 15:06:09,375 INFO L226 Difference]: Without dead ends: 78 [2021-11-19 15:06:09,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:06:09,376 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:09,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 4 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:06:09,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-11-19 15:06:09,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2021-11-19 15:06:09,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 74 states have (on average 2.175675675675676) internal successors, (161), 77 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:09,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 161 transitions. [2021-11-19 15:06:09,386 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 161 transitions. Word has length 6 [2021-11-19 15:06:09,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:09,386 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 161 transitions. [2021-11-19 15:06:09,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:09,387 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 161 transitions. [2021-11-19 15:06:09,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-19 15:06:09,387 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:09,387 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:09,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-19 15:06:09,388 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:09,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:09,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1796427351, now seen corresponding path program 1 times [2021-11-19 15:06:09,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:09,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926345864] [2021-11-19 15:06:09,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:09,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:09,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:09,416 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:09,416 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:09,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926345864] [2021-11-19 15:06:09,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926345864] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:06:09,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588303661] [2021-11-19 15:06:09,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:09,417 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:09,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:06:09,418 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:06:09,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-19 15:06:09,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:09,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 15:06:09,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:09,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:09,554 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:09,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:09,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588303661] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:06:09,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [155289792] [2021-11-19 15:06:09,603 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) [2021-11-19 15:06:09,604 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:06:09,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3, 3] total 8 [2021-11-19 15:06:09,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478920381] [2021-11-19 15:06:09,604 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 15:06:09,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 15:06:09,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:09,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 15:06:09,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-19 15:06:09,605 INFO L87 Difference]: Start difference. First operand 78 states and 161 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:09,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:09,739 INFO L93 Difference]: Finished difference Result 95 states and 180 transitions. [2021-11-19 15:06:09,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 15:06:09,746 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-19 15:06:09,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:09,749 INFO L225 Difference]: With dead ends: 95 [2021-11-19 15:06:09,749 INFO L226 Difference]: Without dead ends: 95 [2021-11-19 15:06:09,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-11-19 15:06:09,751 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 73 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:09,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 8 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:06:09,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-11-19 15:06:09,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 86. [2021-11-19 15:06:09,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 84 states have (on average 2.0357142857142856) internal successors, (171), 85 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:09,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 171 transitions. [2021-11-19 15:06:09,767 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 171 transitions. Word has length 7 [2021-11-19 15:06:09,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:09,768 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 171 transitions. [2021-11-19 15:06:09,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:09,768 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 171 transitions. [2021-11-19 15:06:09,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-19 15:06:09,771 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:09,771 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:09,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-19 15:06:09,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-19 15:06:09,985 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:09,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:09,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1356801213, now seen corresponding path program 1 times [2021-11-19 15:06:09,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:09,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818447593] [2021-11-19 15:06:09,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:09,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:10,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:10,060 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:10,060 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:10,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818447593] [2021-11-19 15:06:10,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818447593] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:06:10,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281384021] [2021-11-19 15:06:10,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:10,061 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:10,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:06:10,069 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:06:10,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-19 15:06:10,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:10,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 15:06:10,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:10,221 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-19 15:06:10,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:10,320 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-19 15:06:10,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1281384021] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:06:10,321 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2009214644] [2021-11-19 15:06:10,321 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) [2021-11-19 15:06:10,323 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:06:10,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 11 [2021-11-19 15:06:10,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432585130] [2021-11-19 15:06:10,327 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 15:06:10,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-19 15:06:10,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:10,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 15:06:10,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2021-11-19 15:06:10,329 INFO L87 Difference]: Start difference. First operand 86 states and 171 transitions. Second operand has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:10,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:10,502 INFO L93 Difference]: Finished difference Result 92 states and 174 transitions. [2021-11-19 15:06:10,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-19 15:06:10,504 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-19 15:06:10,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:10,505 INFO L225 Difference]: With dead ends: 92 [2021-11-19 15:06:10,505 INFO L226 Difference]: Without dead ends: 92 [2021-11-19 15:06:10,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2021-11-19 15:06:10,513 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 112 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:10,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 14 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:06:10,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-11-19 15:06:10,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 67. [2021-11-19 15:06:10,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 66 states have (on average 2.106060606060606) internal successors, (139), 66 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:10,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 139 transitions. [2021-11-19 15:06:10,520 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 139 transitions. Word has length 15 [2021-11-19 15:06:10,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:10,521 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 139 transitions. [2021-11-19 15:06:10,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:10,521 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 139 transitions. [2021-11-19 15:06:10,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-19 15:06:10,522 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:10,522 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2021-11-19 15:06:10,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-19 15:06:10,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:10,737 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:10,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:10,738 INFO L85 PathProgramCache]: Analyzing trace with hash 344461654, now seen corresponding path program 1 times [2021-11-19 15:06:10,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:10,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803383691] [2021-11-19 15:06:10,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:10,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:10,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 15:06:10,757 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 15:06:10,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 15:06:10,792 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-19 15:06:10,792 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 15:06:10,792 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-19 15:06:10,792 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-19 15:06:10,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-19 15:06:10,793 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-19 15:06:10,793 WARN L234 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-19 15:06:10,793 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-11-19 15:06:10,805 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,805 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,805 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,806 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,806 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,806 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,806 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,806 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,807 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,807 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,807 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,807 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,807 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,807 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,807 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,807 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,808 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,808 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,808 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,808 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,809 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,809 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,809 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,809 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,809 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,809 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,810 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,810 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,810 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,810 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,810 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,810 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,810 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,810 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,811 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,811 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,811 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,811 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,811 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,811 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,812 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,812 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,812 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,812 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,812 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,813 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,813 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,813 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,813 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,813 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,813 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,813 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,815 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,816 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,816 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,816 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,816 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,816 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,816 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,817 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,817 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,817 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,817 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,817 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,817 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,817 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,818 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,818 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,818 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,818 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,818 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,818 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,818 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,818 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,819 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,819 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,819 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,819 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,819 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,819 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,820 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,820 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,820 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,820 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,823 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,824 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,824 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,824 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,824 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,824 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,825 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,825 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,825 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,825 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,825 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,826 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,826 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,826 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,826 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,826 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:10,827 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-11-19 15:06:10,829 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:06:10,831 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 [2021-11-19 15:06:10,831 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-19 15:06:10,835 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-19 15:06:10,835 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 80 transitions, 204 flow [2021-11-19 15:06:10,835 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 80 transitions, 204 flow [2021-11-19 15:06:10,835 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 80 transitions, 204 flow [2021-11-19 15:06:10,924 INFO L129 PetriNetUnfolder]: 47/377 cut-off events. [2021-11-19 15:06:10,924 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2021-11-19 15:06:10,927 INFO L84 FinitePrefix]: Finished finitePrefix Result has 432 conditions, 377 events. 47/377 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1190 event pairs, 6 based on Foata normal form. 0/325 useless extension candidates. Maximal degree in co-relation 242. Up to 32 conditions per place. [2021-11-19 15:06:10,937 INFO L116 LiptonReduction]: Number of co-enabled transitions 1760 [2021-11-19 15:06:12,652 INFO L131 LiptonReduction]: Checked pairs total: 2638 [2021-11-19 15:06:12,653 INFO L133 LiptonReduction]: Total number of compositions: 62 [2021-11-19 15:06:12,655 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 23 transitions, 90 flow [2021-11-19 15:06:12,668 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 170 states, 164 states have (on average 2.6280487804878048) internal successors, (431), 169 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:12,669 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 164 states have (on average 2.6280487804878048) internal successors, (431), 169 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:12,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-19 15:06:12,670 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:12,670 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-19 15:06:12,670 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:12,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:12,671 INFO L85 PathProgramCache]: Analyzing trace with hash 20583, now seen corresponding path program 1 times [2021-11-19 15:06:12,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:12,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913801838] [2021-11-19 15:06:12,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:12,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:12,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:12,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:12,688 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:12,688 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913801838] [2021-11-19 15:06:12,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913801838] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:06:12,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:06:12,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-19 15:06:12,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379454933] [2021-11-19 15:06:12,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:06:12,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:06:12,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:12,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:06:12,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:06:12,691 INFO L87 Difference]: Start difference. First operand has 170 states, 164 states have (on average 2.6280487804878048) internal successors, (431), 169 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:12,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:12,714 INFO L93 Difference]: Finished difference Result 169 states and 430 transitions. [2021-11-19 15:06:12,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:06:12,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-11-19 15:06:12,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:12,718 INFO L225 Difference]: With dead ends: 169 [2021-11-19 15:06:12,718 INFO L226 Difference]: Without dead ends: 169 [2021-11-19 15:06:12,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:06:12,719 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:12,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:06:12,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2021-11-19 15:06:12,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2021-11-19 15:06:12,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 2.6219512195121952) internal successors, (430), 168 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:12,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 430 transitions. [2021-11-19 15:06:12,733 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 430 transitions. Word has length 2 [2021-11-19 15:06:12,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:12,734 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 430 transitions. [2021-11-19 15:06:12,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:12,734 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 430 transitions. [2021-11-19 15:06:12,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-19 15:06:12,735 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:12,735 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-19 15:06:12,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-19 15:06:12,735 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:12,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:12,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1854953524, now seen corresponding path program 1 times [2021-11-19 15:06:12,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:12,736 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293571394] [2021-11-19 15:06:12,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:12,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:12,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 15:06:12,755 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:12,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293571394] [2021-11-19 15:06:12,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293571394] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:06:12,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:06:12,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-19 15:06:12,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110266832] [2021-11-19 15:06:12,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:06:12,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:06:12,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:12,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:06:12,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:06:12,757 INFO L87 Difference]: Start difference. First operand 169 states and 430 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:12,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:12,780 INFO L93 Difference]: Finished difference Result 165 states and 416 transitions. [2021-11-19 15:06:12,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:06:12,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-19 15:06:12,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:12,783 INFO L225 Difference]: With dead ends: 165 [2021-11-19 15:06:12,783 INFO L226 Difference]: Without dead ends: 165 [2021-11-19 15:06:12,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:06:12,784 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:12,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:06:12,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-11-19 15:06:12,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2021-11-19 15:06:12,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 160 states have (on average 2.6) internal successors, (416), 164 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:12,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 416 transitions. [2021-11-19 15:06:12,796 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 416 transitions. Word has length 6 [2021-11-19 15:06:12,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:12,797 INFO L470 AbstractCegarLoop]: Abstraction has 165 states and 416 transitions. [2021-11-19 15:06:12,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:12,797 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 416 transitions. [2021-11-19 15:06:12,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-19 15:06:12,797 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:12,798 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:12,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-19 15:06:12,798 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:12,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:12,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1671537524, now seen corresponding path program 1 times [2021-11-19 15:06:12,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:12,799 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152633930] [2021-11-19 15:06:12,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:12,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:12,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:12,826 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:12,826 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:12,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152633930] [2021-11-19 15:06:12,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152633930] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:06:12,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298374739] [2021-11-19 15:06:12,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:12,827 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:12,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:06:12,829 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:06:12,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-19 15:06:12,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:12,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 15:06:12,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:12,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:12,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:13,003 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:13,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [298374739] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:06:13,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1271216674] [2021-11-19 15:06:13,004 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) [2021-11-19 15:06:13,006 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:06:13,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3, 3] total 8 [2021-11-19 15:06:13,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824756830] [2021-11-19 15:06:13,007 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 15:06:13,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 15:06:13,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:13,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 15:06:13,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-19 15:06:13,008 INFO L87 Difference]: Start difference. First operand 165 states and 416 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:13,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:13,165 INFO L93 Difference]: Finished difference Result 220 states and 511 transitions. [2021-11-19 15:06:13,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 15:06:13,165 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-19 15:06:13,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:13,168 INFO L225 Difference]: With dead ends: 220 [2021-11-19 15:06:13,168 INFO L226 Difference]: Without dead ends: 220 [2021-11-19 15:06:13,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-11-19 15:06:13,170 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 78 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:13,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 9 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:06:13,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-11-19 15:06:13,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 196. [2021-11-19 15:06:13,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 193 states have (on average 2.461139896373057) internal successors, (475), 195 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:13,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 475 transitions. [2021-11-19 15:06:13,183 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 475 transitions. Word has length 7 [2021-11-19 15:06:13,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:13,183 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 475 transitions. [2021-11-19 15:06:13,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:13,184 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 475 transitions. [2021-11-19 15:06:13,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-19 15:06:13,185 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:13,185 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:13,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-19 15:06:13,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:13,401 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:13,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:13,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1015369778, now seen corresponding path program 1 times [2021-11-19 15:06:13,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:13,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309903650] [2021-11-19 15:06:13,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:13,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:13,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:13,449 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:13,449 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:13,449 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309903650] [2021-11-19 15:06:13,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309903650] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:06:13,449 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748249614] [2021-11-19 15:06:13,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:13,450 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:13,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:06:13,451 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:06:13,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-19 15:06:13,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:13,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 15:06:13,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:13,618 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-19 15:06:13,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:13,698 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-19 15:06:13,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [748249614] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:06:13,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1792672333] [2021-11-19 15:06:13,698 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) [2021-11-19 15:06:13,699 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:06:13,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 11 [2021-11-19 15:06:13,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330519067] [2021-11-19 15:06:13,700 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 15:06:13,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-19 15:06:13,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:13,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 15:06:13,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2021-11-19 15:06:13,703 INFO L87 Difference]: Start difference. First operand 196 states and 475 transitions. Second operand has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:13,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:13,885 INFO L93 Difference]: Finished difference Result 216 states and 499 transitions. [2021-11-19 15:06:13,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-19 15:06:13,886 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-19 15:06:13,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:13,888 INFO L225 Difference]: With dead ends: 216 [2021-11-19 15:06:13,888 INFO L226 Difference]: Without dead ends: 216 [2021-11-19 15:06:13,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2021-11-19 15:06:13,890 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 165 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:13,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 14 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:06:13,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-19 15:06:13,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 139. [2021-11-19 15:06:13,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 138 states have (on average 2.5434782608695654) internal successors, (351), 138 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:13,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 351 transitions. [2021-11-19 15:06:13,899 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 351 transitions. Word has length 15 [2021-11-19 15:06:13,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:13,899 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 351 transitions. [2021-11-19 15:06:13,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:13,899 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 351 transitions. [2021-11-19 15:06:13,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-19 15:06:13,901 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:13,901 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:13,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-11-19 15:06:14,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-19 15:06:14,118 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:14,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:14,119 INFO L85 PathProgramCache]: Analyzing trace with hash 885254433, now seen corresponding path program 1 times [2021-11-19 15:06:14,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:14,119 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714520220] [2021-11-19 15:06:14,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:14,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:14,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 15:06:14,135 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 15:06:14,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 15:06:14,159 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-19 15:06:14,160 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 15:06:14,160 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-19 15:06:14,160 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-19 15:06:14,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-19 15:06:14,161 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-19 15:06:14,161 WARN L234 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-19 15:06:14,161 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2021-11-19 15:06:14,172 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,172 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,172 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,174 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,174 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,174 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,174 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,174 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,174 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,174 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,175 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,175 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,175 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,175 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,175 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,175 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,175 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,176 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,176 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,176 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,176 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,176 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,176 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,176 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,176 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,177 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,177 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,177 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,177 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,177 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,177 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,177 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,177 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,177 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,178 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,178 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,178 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,178 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,178 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,178 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,178 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,179 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,179 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,179 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,179 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,179 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,179 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,179 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,179 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,179 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,180 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,180 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,180 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,180 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,180 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,180 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,180 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,180 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,181 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,181 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,181 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,181 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,181 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,181 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,181 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,181 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,182 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,182 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,182 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,182 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,182 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,182 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,182 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,182 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,182 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,183 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,183 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,183 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,183 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,183 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,183 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,183 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,183 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,184 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,184 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,184 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,184 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,184 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,184 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,184 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,184 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,184 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,185 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,185 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,185 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,185 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,185 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,185 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,185 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,185 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,186 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,186 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,186 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,186 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,186 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,187 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,187 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,187 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,187 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,187 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,188 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,188 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,188 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,188 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,188 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,189 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,189 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,189 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,189 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,189 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,190 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,190 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,190 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,190 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,190 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:14,192 INFO L148 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2021-11-19 15:06:14,193 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:06:14,194 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 [2021-11-19 15:06:14,194 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-19 15:06:14,196 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-19 15:06:14,196 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 87 transitions, 234 flow [2021-11-19 15:06:14,196 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 87 transitions, 234 flow [2021-11-19 15:06:14,197 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 87 transitions, 234 flow [2021-11-19 15:06:14,284 INFO L129 PetriNetUnfolder]: 98/672 cut-off events. [2021-11-19 15:06:14,285 INFO L130 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2021-11-19 15:06:14,287 INFO L84 FinitePrefix]: Finished finitePrefix Result has 783 conditions, 672 events. 98/672 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2784 event pairs, 23 based on Foata normal form. 0/584 useless extension candidates. Maximal degree in co-relation 422. Up to 80 conditions per place. [2021-11-19 15:06:14,302 INFO L116 LiptonReduction]: Number of co-enabled transitions 2400 [2021-11-19 15:06:16,058 INFO L131 LiptonReduction]: Checked pairs total: 3089 [2021-11-19 15:06:16,058 INFO L133 LiptonReduction]: Total number of compositions: 66 [2021-11-19 15:06:16,059 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 26 transitions, 112 flow [2021-11-19 15:06:16,080 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 346 states, 339 states have (on average 3.0648967551622417) internal successors, (1039), 345 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:16,082 INFO L276 IsEmpty]: Start isEmpty. Operand has 346 states, 339 states have (on average 3.0648967551622417) internal successors, (1039), 345 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:16,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-19 15:06:16,082 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:16,083 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-19 15:06:16,083 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:16,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:16,083 INFO L85 PathProgramCache]: Analyzing trace with hash 25706, now seen corresponding path program 1 times [2021-11-19 15:06:16,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:16,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188652054] [2021-11-19 15:06:16,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:16,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:16,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:16,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:16,096 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:16,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188652054] [2021-11-19 15:06:16,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188652054] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:06:16,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:06:16,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-19 15:06:16,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025299785] [2021-11-19 15:06:16,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:06:16,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:06:16,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:16,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:06:16,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:06:16,099 INFO L87 Difference]: Start difference. First operand has 346 states, 339 states have (on average 3.0648967551622417) internal successors, (1039), 345 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:16,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:16,127 INFO L93 Difference]: Finished difference Result 345 states and 1038 transitions. [2021-11-19 15:06:16,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:06:16,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-11-19 15:06:16,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:16,131 INFO L225 Difference]: With dead ends: 345 [2021-11-19 15:06:16,131 INFO L226 Difference]: Without dead ends: 345 [2021-11-19 15:06:16,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:06:16,133 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:16,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:06:16,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2021-11-19 15:06:16,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2021-11-19 15:06:16,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 339 states have (on average 3.061946902654867) internal successors, (1038), 344 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:16,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 1038 transitions. [2021-11-19 15:06:16,151 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 1038 transitions. Word has length 2 [2021-11-19 15:06:16,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:16,152 INFO L470 AbstractCegarLoop]: Abstraction has 345 states and 1038 transitions. [2021-11-19 15:06:16,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:16,152 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 1038 transitions. [2021-11-19 15:06:16,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-19 15:06:16,153 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:16,153 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-19 15:06:16,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-19 15:06:16,153 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:16,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:16,154 INFO L85 PathProgramCache]: Analyzing trace with hash -2000893746, now seen corresponding path program 1 times [2021-11-19 15:06:16,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:16,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812238629] [2021-11-19 15:06:16,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:16,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:16,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:16,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 15:06:16,197 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:16,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812238629] [2021-11-19 15:06:16,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812238629] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:06:16,198 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:06:16,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-19 15:06:16,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788905318] [2021-11-19 15:06:16,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:06:16,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:06:16,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:16,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:06:16,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:06:16,200 INFO L87 Difference]: Start difference. First operand 345 states and 1038 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:16,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:16,231 INFO L93 Difference]: Finished difference Result 340 states and 1018 transitions. [2021-11-19 15:06:16,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:06:16,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-19 15:06:16,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:16,237 INFO L225 Difference]: With dead ends: 340 [2021-11-19 15:06:16,237 INFO L226 Difference]: Without dead ends: 340 [2021-11-19 15:06:16,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:06:16,240 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 5 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:16,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 4 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:06:16,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2021-11-19 15:06:16,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2021-11-19 15:06:16,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 334 states have (on average 3.0479041916167664) internal successors, (1018), 339 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:16,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 1018 transitions. [2021-11-19 15:06:16,258 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 1018 transitions. Word has length 6 [2021-11-19 15:06:16,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:16,259 INFO L470 AbstractCegarLoop]: Abstraction has 340 states and 1018 transitions. [2021-11-19 15:06:16,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:16,259 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 1018 transitions. [2021-11-19 15:06:16,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-19 15:06:16,261 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:16,262 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:16,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-19 15:06:16,262 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:16,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:16,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1895477050, now seen corresponding path program 1 times [2021-11-19 15:06:16,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:16,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59764666] [2021-11-19 15:06:16,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:16,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:16,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:16,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:16,306 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:16,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59764666] [2021-11-19 15:06:16,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59764666] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:06:16,307 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570007392] [2021-11-19 15:06:16,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:16,308 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:16,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:06:16,309 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:06:16,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-19 15:06:16,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:16,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 15:06:16,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:16,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:16,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:16,481 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:16,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570007392] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:06:16,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [747070922] [2021-11-19 15:06:16,483 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) [2021-11-19 15:06:16,484 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:06:16,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3, 3] total 8 [2021-11-19 15:06:16,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415686472] [2021-11-19 15:06:16,485 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 15:06:16,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 15:06:16,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:16,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 15:06:16,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-19 15:06:16,486 INFO L87 Difference]: Start difference. First operand 340 states and 1018 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:16,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:16,638 INFO L93 Difference]: Finished difference Result 477 states and 1327 transitions. [2021-11-19 15:06:16,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 15:06:16,639 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-19 15:06:16,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:16,645 INFO L225 Difference]: With dead ends: 477 [2021-11-19 15:06:16,645 INFO L226 Difference]: Without dead ends: 477 [2021-11-19 15:06:16,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-11-19 15:06:16,646 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 120 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:16,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 9 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:06:16,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2021-11-19 15:06:16,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 422. [2021-11-19 15:06:16,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 418 states have (on average 2.911483253588517) internal successors, (1217), 421 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:16,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 1217 transitions. [2021-11-19 15:06:16,672 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 1217 transitions. Word has length 7 [2021-11-19 15:06:16,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:16,672 INFO L470 AbstractCegarLoop]: Abstraction has 422 states and 1217 transitions. [2021-11-19 15:06:16,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:16,673 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 1217 transitions. [2021-11-19 15:06:16,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-19 15:06:16,674 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:16,674 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:16,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-11-19 15:06:16,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2021-11-19 15:06:16,893 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:16,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:16,894 INFO L85 PathProgramCache]: Analyzing trace with hash 69739715, now seen corresponding path program 1 times [2021-11-19 15:06:16,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:16,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59840679] [2021-11-19 15:06:16,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:16,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:16,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:16,936 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:16,937 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:16,937 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59840679] [2021-11-19 15:06:16,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59840679] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:06:16,937 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209408274] [2021-11-19 15:06:16,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:16,938 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:16,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:06:16,950 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:06:16,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-19 15:06:17,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:17,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 15:06:17,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:17,125 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-19 15:06:17,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:17,215 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-19 15:06:17,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209408274] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:06:17,215 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [292728290] [2021-11-19 15:06:17,216 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) [2021-11-19 15:06:17,217 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:06:17,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 11 [2021-11-19 15:06:17,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900553997] [2021-11-19 15:06:17,218 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 15:06:17,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-19 15:06:17,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:17,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 15:06:17,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2021-11-19 15:06:17,219 INFO L87 Difference]: Start difference. First operand 422 states and 1217 transitions. Second operand has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:17,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:17,455 INFO L93 Difference]: Finished difference Result 476 states and 1316 transitions. [2021-11-19 15:06:17,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-19 15:06:17,456 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-19 15:06:17,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:17,460 INFO L225 Difference]: With dead ends: 476 [2021-11-19 15:06:17,460 INFO L226 Difference]: Without dead ends: 476 [2021-11-19 15:06:17,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=183, Invalid=417, Unknown=0, NotChecked=0, Total=600 [2021-11-19 15:06:17,462 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 142 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:17,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 14 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:06:17,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2021-11-19 15:06:17,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 283. [2021-11-19 15:06:17,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 282 states have (on average 3.00354609929078) internal successors, (847), 282 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:17,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 847 transitions. [2021-11-19 15:06:17,477 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 847 transitions. Word has length 15 [2021-11-19 15:06:17,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:17,478 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 847 transitions. [2021-11-19 15:06:17,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:17,478 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 847 transitions. [2021-11-19 15:06:17,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-19 15:06:17,480 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:17,480 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:17,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-19 15:06:17,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:17,705 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:17,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:17,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1350942946, now seen corresponding path program 1 times [2021-11-19 15:06:17,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:17,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448306991] [2021-11-19 15:06:17,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:17,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 15:06:17,724 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 15:06:17,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 15:06:17,745 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-19 15:06:17,746 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 15:06:17,746 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-19 15:06:17,746 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-19 15:06:17,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-19 15:06:17,747 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-19 15:06:17,747 WARN L234 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-19 15:06:17,747 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2021-11-19 15:06:17,757 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,758 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,758 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,758 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,758 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,758 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,758 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,759 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,759 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,759 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,759 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,759 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,759 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,760 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,760 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,760 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,760 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,760 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,760 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,761 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,761 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,761 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,761 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,761 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,762 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,762 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,762 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,762 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,762 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,762 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,762 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,763 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,763 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,763 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,763 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,763 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,763 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,764 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,764 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,764 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,764 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,764 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,765 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,765 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,765 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,765 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,765 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,765 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,766 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,766 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,766 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,766 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,766 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,766 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,767 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,767 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,767 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,767 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,767 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,767 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,768 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,768 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,768 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,768 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,768 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,768 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,769 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,769 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,769 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,769 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,769 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,769 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,770 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,770 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,770 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,770 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,770 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,770 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,771 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,771 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,771 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,771 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,771 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,771 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,772 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,772 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,772 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,772 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,772 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,772 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,773 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,773 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,773 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,773 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,773 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,773 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,774 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,774 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,774 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,774 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,774 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,775 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,775 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,775 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,775 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,775 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,775 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,776 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,776 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,776 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,776 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,776 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,776 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,777 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,777 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,777 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,777 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,777 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,777 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,778 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,778 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,778 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,778 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,779 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,779 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,779 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,779 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,780 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,780 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,780 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,780 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,781 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,781 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,781 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,781 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,782 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,782 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,782 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,782 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,782 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,783 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,783 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,783 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,783 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,784 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,784 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,784 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,784 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,785 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,785 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:17,786 INFO L148 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2021-11-19 15:06:17,788 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:06:17,788 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 [2021-11-19 15:06:17,789 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-19 15:06:17,790 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-19 15:06:17,790 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 94 transitions, 266 flow [2021-11-19 15:06:17,790 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 94 transitions, 266 flow [2021-11-19 15:06:17,791 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 94 transitions, 266 flow [2021-11-19 15:06:18,006 INFO L129 PetriNetUnfolder]: 213/1255 cut-off events. [2021-11-19 15:06:18,007 INFO L130 PetriNetUnfolder]: For 242/242 co-relation queries the response was YES. [2021-11-19 15:06:18,012 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1487 conditions, 1255 events. 213/1255 cut-off events. For 242/242 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6802 event pairs, 72 based on Foata normal form. 0/1099 useless extension candidates. Maximal degree in co-relation 771. Up to 192 conditions per place. [2021-11-19 15:06:18,043 INFO L116 LiptonReduction]: Number of co-enabled transitions 3120 [2021-11-19 15:06:19,817 INFO L131 LiptonReduction]: Checked pairs total: 5000 [2021-11-19 15:06:19,817 INFO L133 LiptonReduction]: Total number of compositions: 70 [2021-11-19 15:06:19,818 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 29 transitions, 136 flow [2021-11-19 15:06:19,858 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 698 states, 690 states have (on average 3.5231884057971015) internal successors, (2431), 697 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:19,861 INFO L276 IsEmpty]: Start isEmpty. Operand has 698 states, 690 states have (on average 3.5231884057971015) internal successors, (2431), 697 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:19,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-19 15:06:19,862 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:19,862 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-19 15:06:19,862 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:19,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:19,863 INFO L85 PathProgramCache]: Analyzing trace with hash 31174, now seen corresponding path program 1 times [2021-11-19 15:06:19,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:19,863 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50945617] [2021-11-19 15:06:19,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:19,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:19,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:19,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:19,880 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:19,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50945617] [2021-11-19 15:06:19,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50945617] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:06:19,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:06:19,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-19 15:06:19,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129773360] [2021-11-19 15:06:19,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:06:19,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:06:19,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:19,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:06:19,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:06:19,886 INFO L87 Difference]: Start difference. First operand has 698 states, 690 states have (on average 3.5231884057971015) internal successors, (2431), 697 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:19,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:19,925 INFO L93 Difference]: Finished difference Result 691 states and 2403 transitions. [2021-11-19 15:06:19,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:06:19,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-11-19 15:06:19,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:19,935 INFO L225 Difference]: With dead ends: 691 [2021-11-19 15:06:19,935 INFO L226 Difference]: Without dead ends: 691 [2021-11-19 15:06:19,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:06:19,936 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 10 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:19,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 4 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:06:19,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2021-11-19 15:06:19,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 691. [2021-11-19 15:06:19,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 684 states have (on average 3.513157894736842) internal successors, (2403), 690 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:19,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 2403 transitions. [2021-11-19 15:06:19,976 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 2403 transitions. Word has length 2 [2021-11-19 15:06:19,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:19,977 INFO L470 AbstractCegarLoop]: Abstraction has 691 states and 2403 transitions. [2021-11-19 15:06:19,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:19,977 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 2403 transitions. [2021-11-19 15:06:19,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-19 15:06:19,978 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:19,978 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:19,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-19 15:06:19,978 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:19,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:19,979 INFO L85 PathProgramCache]: Analyzing trace with hash 330708179, now seen corresponding path program 1 times [2021-11-19 15:06:19,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:19,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229384904] [2021-11-19 15:06:19,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:19,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:20,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:20,021 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:20,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229384904] [2021-11-19 15:06:20,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229384904] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:06:20,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802117675] [2021-11-19 15:06:20,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:20,022 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:20,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:06:20,026 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:06:20,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-19 15:06:20,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:20,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 15:06:20,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:20,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:20,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:20,219 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:20,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802117675] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:06:20,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2081747081] [2021-11-19 15:06:20,220 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) [2021-11-19 15:06:20,222 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:06:20,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2021-11-19 15:06:20,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80968942] [2021-11-19 15:06:20,222 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 15:06:20,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 15:06:20,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:20,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 15:06:20,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-19 15:06:20,224 INFO L87 Difference]: Start difference. First operand 691 states and 2403 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:20,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:20,343 INFO L93 Difference]: Finished difference Result 1001 states and 3255 transitions. [2021-11-19 15:06:20,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 15:06:20,344 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-19 15:06:20,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:20,358 INFO L225 Difference]: With dead ends: 1001 [2021-11-19 15:06:20,358 INFO L226 Difference]: Without dead ends: 1001 [2021-11-19 15:06:20,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2021-11-19 15:06:20,359 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 126 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:20,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 8 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:06:20,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2021-11-19 15:06:20,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 882. [2021-11-19 15:06:20,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 876 states have (on average 3.3789954337899544) internal successors, (2960), 881 states have internal predecessors, (2960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:20,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 2960 transitions. [2021-11-19 15:06:20,439 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 2960 transitions. Word has length 7 [2021-11-19 15:06:20,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:20,439 INFO L470 AbstractCegarLoop]: Abstraction has 882 states and 2960 transitions. [2021-11-19 15:06:20,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:20,440 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 2960 transitions. [2021-11-19 15:06:20,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 15:06:20,440 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:20,441 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2021-11-19 15:06:20,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-19 15:06:20,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-11-19 15:06:20,657 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:20,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:20,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1963417120, now seen corresponding path program 1 times [2021-11-19 15:06:20,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:20,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962942293] [2021-11-19 15:06:20,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:20,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:20,715 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:20,715 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:20,716 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962942293] [2021-11-19 15:06:20,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962942293] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:06:20,716 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988397771] [2021-11-19 15:06:20,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:20,716 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:20,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:06:20,718 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:06:20,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-19 15:06:20,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:20,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 15:06:20,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:20,870 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:20,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:20,949 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:20,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [988397771] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:06:20,950 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [117369491] [2021-11-19 15:06:20,950 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) [2021-11-19 15:06:20,951 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:06:20,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4] total 10 [2021-11-19 15:06:20,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734123008] [2021-11-19 15:06:20,952 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 15:06:20,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 15:06:20,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:20,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 15:06:20,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-11-19 15:06:20,953 INFO L87 Difference]: Start difference. First operand 882 states and 2960 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:21,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:21,197 INFO L93 Difference]: Finished difference Result 1140 states and 3685 transitions. [2021-11-19 15:06:21,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-19 15:06:21,198 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-19 15:06:21,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:21,214 INFO L225 Difference]: With dead ends: 1140 [2021-11-19 15:06:21,214 INFO L226 Difference]: Without dead ends: 1140 [2021-11-19 15:06:21,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=150, Invalid=356, Unknown=0, NotChecked=0, Total=506 [2021-11-19 15:06:21,216 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 144 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:21,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 16 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:06:21,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2021-11-19 15:06:21,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 926. [2021-11-19 15:06:21,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 923 states have (on average 3.3976164680390033) internal successors, (3136), 925 states have internal predecessors, (3136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:21,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 3136 transitions. [2021-11-19 15:06:21,276 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 3136 transitions. Word has length 11 [2021-11-19 15:06:21,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:21,277 INFO L470 AbstractCegarLoop]: Abstraction has 926 states and 3136 transitions. [2021-11-19 15:06:21,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:21,278 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 3136 transitions. [2021-11-19 15:06:21,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-19 15:06:21,280 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:21,280 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:21,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-19 15:06:21,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-11-19 15:06:21,494 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:21,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:21,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1998258422, now seen corresponding path program 1 times [2021-11-19 15:06:21,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:21,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375516342] [2021-11-19 15:06:21,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:21,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:21,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:21,588 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:21,589 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:21,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375516342] [2021-11-19 15:06:21,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375516342] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:06:21,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540549805] [2021-11-19 15:06:21,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:21,590 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:21,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:06:21,591 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:06:21,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-19 15:06:21,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:21,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 15:06:21,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:21,792 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-19 15:06:21,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:21,906 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-19 15:06:21,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540549805] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:06:21,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [407557407] [2021-11-19 15:06:21,907 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) [2021-11-19 15:06:21,907 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:06:21,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 14 [2021-11-19 15:06:21,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737096711] [2021-11-19 15:06:21,907 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 15:06:21,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-19 15:06:21,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:21,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-19 15:06:21,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2021-11-19 15:06:21,909 INFO L87 Difference]: Start difference. First operand 926 states and 3136 transitions. Second operand has 16 states, 15 states have (on average 3.6) internal successors, (54), 15 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:22,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:22,257 INFO L93 Difference]: Finished difference Result 1048 states and 3429 transitions. [2021-11-19 15:06:22,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-19 15:06:22,258 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.6) internal successors, (54), 15 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-19 15:06:22,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:22,268 INFO L225 Difference]: With dead ends: 1048 [2021-11-19 15:06:22,269 INFO L226 Difference]: Without dead ends: 1048 [2021-11-19 15:06:22,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=252, Invalid=560, Unknown=0, NotChecked=0, Total=812 [2021-11-19 15:06:22,270 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 227 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:22,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 22 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 15:06:22,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2021-11-19 15:06:22,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 571. [2021-11-19 15:06:22,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 570 states have (on average 3.4789473684210526) internal successors, (1983), 570 states have internal predecessors, (1983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:22,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 1983 transitions. [2021-11-19 15:06:22,309 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 1983 transitions. Word has length 23 [2021-11-19 15:06:22,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:22,310 INFO L470 AbstractCegarLoop]: Abstraction has 571 states and 1983 transitions. [2021-11-19 15:06:22,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.6) internal successors, (54), 15 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:22,311 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 1983 transitions. [2021-11-19 15:06:22,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-19 15:06:22,316 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:22,316 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:22,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-19 15:06:22,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-11-19 15:06:22,541 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:22,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:22,542 INFO L85 PathProgramCache]: Analyzing trace with hash -517177115, now seen corresponding path program 1 times [2021-11-19 15:06:22,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:22,542 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128062640] [2021-11-19 15:06:22,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:22,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:22,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 15:06:22,565 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 15:06:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 15:06:22,605 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-19 15:06:22,608 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 15:06:22,608 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-19 15:06:22,608 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-19 15:06:22,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-19 15:06:22,609 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-19 15:06:22,609 WARN L234 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-19 15:06:22,609 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2021-11-19 15:06:22,631 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,631 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,631 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,632 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,632 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,632 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,632 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,632 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,632 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,633 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,633 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,633 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,633 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,633 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,633 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,633 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,634 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,634 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,634 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,634 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,634 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,635 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,635 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,635 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,635 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,635 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,635 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,635 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,636 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,636 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,636 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,636 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,636 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,636 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,637 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,637 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,637 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,637 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,637 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,637 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,638 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,638 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,638 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,638 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,638 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,638 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,638 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,639 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,639 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,639 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,639 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,639 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,639 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,639 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,640 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,640 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,640 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,640 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,640 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,640 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,641 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,641 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,641 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,641 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,641 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,641 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,641 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,642 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,642 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,642 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,642 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,642 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,642 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,643 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,643 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,643 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,643 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,643 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,643 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,643 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,644 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,644 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,644 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,644 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,644 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,644 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,645 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,645 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,645 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,645 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,645 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,645 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,645 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,646 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,646 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,646 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,646 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,646 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,646 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,647 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,647 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,647 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,647 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,647 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,647 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,648 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,648 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,648 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,648 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,648 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,648 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,649 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,649 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,649 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,649 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,649 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,649 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,649 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,650 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,650 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,650 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,650 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,650 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,650 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,651 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,651 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,651 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,651 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,651 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,651 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,652 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,652 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,652 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,652 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,652 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,653 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,653 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,653 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,653 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,653 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,654 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,654 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,654 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,654 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,654 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,655 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,655 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,655 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,655 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,656 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,656 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,656 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,656 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,656 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,657 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,657 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,657 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,657 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,657 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,658 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,658 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,658 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,658 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,658 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,659 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,659 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,659 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,659 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,659 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,660 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,660 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,660 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,660 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,660 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,661 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:22,662 INFO L148 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2021-11-19 15:06:22,663 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:06:22,664 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 [2021-11-19 15:06:22,664 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-19 15:06:22,665 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-19 15:06:22,665 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 106 places, 101 transitions, 300 flow [2021-11-19 15:06:22,666 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 106 places, 101 transitions, 300 flow [2021-11-19 15:06:22,666 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 101 transitions, 300 flow [2021-11-19 15:06:23,171 INFO L129 PetriNetUnfolder]: 472/2430 cut-off events. [2021-11-19 15:06:23,171 INFO L130 PetriNetUnfolder]: For 525/525 co-relation queries the response was YES. [2021-11-19 15:06:23,186 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2928 conditions, 2430 events. 472/2430 cut-off events. For 525/525 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 16324 event pairs, 201 based on Foata normal form. 0/2142 useless extension candidates. Maximal degree in co-relation 1473. Up to 448 conditions per place. [2021-11-19 15:06:23,239 INFO L116 LiptonReduction]: Number of co-enabled transitions 3920 [2021-11-19 15:06:25,251 INFO L131 LiptonReduction]: Checked pairs total: 6060 [2021-11-19 15:06:25,251 INFO L133 LiptonReduction]: Total number of compositions: 74 [2021-11-19 15:06:25,252 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 32 transitions, 162 flow [2021-11-19 15:06:25,342 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1402 states, 1393 states have (on average 3.996410624551328) internal successors, (5567), 1401 states have internal predecessors, (5567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:25,347 INFO L276 IsEmpty]: Start isEmpty. Operand has 1402 states, 1393 states have (on average 3.996410624551328) internal successors, (5567), 1401 states have internal predecessors, (5567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:25,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-19 15:06:25,347 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:25,347 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-19 15:06:25,348 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:25,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:25,348 INFO L85 PathProgramCache]: Analyzing trace with hash 36999, now seen corresponding path program 1 times [2021-11-19 15:06:25,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:25,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905698102] [2021-11-19 15:06:25,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:25,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:25,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:25,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:25,362 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:25,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905698102] [2021-11-19 15:06:25,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905698102] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:06:25,363 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:06:25,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-19 15:06:25,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775272170] [2021-11-19 15:06:25,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:06:25,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:06:25,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:25,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:06:25,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:06:25,369 INFO L87 Difference]: Start difference. First operand has 1402 states, 1393 states have (on average 3.996410624551328) internal successors, (5567), 1401 states have internal predecessors, (5567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:25,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:25,421 INFO L93 Difference]: Finished difference Result 1394 states and 5531 transitions. [2021-11-19 15:06:25,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:06:25,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-11-19 15:06:25,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:25,442 INFO L225 Difference]: With dead ends: 1394 [2021-11-19 15:06:25,442 INFO L226 Difference]: Without dead ends: 1394 [2021-11-19 15:06:25,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:06:25,443 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 11 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:25,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 4 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:06:25,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2021-11-19 15:06:25,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1394. [2021-11-19 15:06:25,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1386 states have (on average 3.9906204906204907) internal successors, (5531), 1393 states have internal predecessors, (5531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:25,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 5531 transitions. [2021-11-19 15:06:25,519 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 5531 transitions. Word has length 2 [2021-11-19 15:06:25,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:25,519 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 5531 transitions. [2021-11-19 15:06:25,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:25,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 5531 transitions. [2021-11-19 15:06:25,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-19 15:06:25,520 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:25,520 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:25,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-19 15:06:25,521 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:25,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:25,521 INFO L85 PathProgramCache]: Analyzing trace with hash -125385246, now seen corresponding path program 1 times [2021-11-19 15:06:25,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:25,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606260905] [2021-11-19 15:06:25,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:25,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:25,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:25,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:25,562 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:25,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606260905] [2021-11-19 15:06:25,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606260905] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:06:25,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755672223] [2021-11-19 15:06:25,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:25,563 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:25,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:06:25,565 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:06:25,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-19 15:06:25,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:25,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 15:06:25,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:25,705 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:25,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:25,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:25,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755672223] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:06:25,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [532119125] [2021-11-19 15:06:25,749 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) [2021-11-19 15:06:25,750 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:06:25,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2021-11-19 15:06:25,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159320345] [2021-11-19 15:06:25,751 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 15:06:25,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 15:06:25,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:25,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 15:06:25,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-19 15:06:25,752 INFO L87 Difference]: Start difference. First operand 1394 states and 5531 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:25,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:25,882 INFO L93 Difference]: Finished difference Result 2050 states and 7669 transitions. [2021-11-19 15:06:25,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 15:06:25,883 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-19 15:06:25,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:25,909 INFO L225 Difference]: With dead ends: 2050 [2021-11-19 15:06:25,910 INFO L226 Difference]: Without dead ends: 2050 [2021-11-19 15:06:25,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2021-11-19 15:06:25,911 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 87 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:25,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 10 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:06:25,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2050 states. [2021-11-19 15:06:26,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2050 to 1804. [2021-11-19 15:06:26,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1804 states, 1797 states have (on average 3.858653311074012) internal successors, (6934), 1803 states have internal predecessors, (6934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:26,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1804 states to 1804 states and 6934 transitions. [2021-11-19 15:06:26,062 INFO L78 Accepts]: Start accepts. Automaton has 1804 states and 6934 transitions. Word has length 7 [2021-11-19 15:06:26,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:26,062 INFO L470 AbstractCegarLoop]: Abstraction has 1804 states and 6934 transitions. [2021-11-19 15:06:26,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:26,064 INFO L276 IsEmpty]: Start isEmpty. Operand 1804 states and 6934 transitions. [2021-11-19 15:06:26,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 15:06:26,064 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:26,064 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2021-11-19 15:06:26,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-19 15:06:26,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-11-19 15:06:26,283 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:26,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:26,283 INFO L85 PathProgramCache]: Analyzing trace with hash -698774021, now seen corresponding path program 1 times [2021-11-19 15:06:26,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:26,284 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134807355] [2021-11-19 15:06:26,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:26,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:26,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:26,318 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:26,318 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:26,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134807355] [2021-11-19 15:06:26,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134807355] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:06:26,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290073201] [2021-11-19 15:06:26,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:26,319 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:26,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:06:26,321 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:06:26,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-19 15:06:26,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:26,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:06:26,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:26,461 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:26,461 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:26,507 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:26,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290073201] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:06:26,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [576959471] [2021-11-19 15:06:26,508 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) [2021-11-19 15:06:26,510 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:06:26,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2021-11-19 15:06:26,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669543767] [2021-11-19 15:06:26,510 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 15:06:26,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 15:06:26,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:26,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 15:06:26,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-11-19 15:06:26,513 INFO L87 Difference]: Start difference. First operand 1804 states and 6934 transitions. Second operand has 9 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:26,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:26,624 INFO L93 Difference]: Finished difference Result 1752 states and 6778 transitions. [2021-11-19 15:06:26,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 15:06:26,625 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 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 [2021-11-19 15:06:26,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:26,650 INFO L225 Difference]: With dead ends: 1752 [2021-11-19 15:06:26,650 INFO L226 Difference]: Without dead ends: 1752 [2021-11-19 15:06:26,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-11-19 15:06:26,651 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 69 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:26,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 11 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:06:26,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1752 states. [2021-11-19 15:06:26,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1752 to 1752. [2021-11-19 15:06:26,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1752 states, 1749 states have (on average 3.87535734705546) internal successors, (6778), 1751 states have internal predecessors, (6778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:26,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1752 states to 1752 states and 6778 transitions. [2021-11-19 15:06:26,744 INFO L78 Accepts]: Start accepts. Automaton has 1752 states and 6778 transitions. Word has length 11 [2021-11-19 15:06:26,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:26,744 INFO L470 AbstractCegarLoop]: Abstraction has 1752 states and 6778 transitions. [2021-11-19 15:06:26,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:26,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1752 states and 6778 transitions. [2021-11-19 15:06:26,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-19 15:06:26,748 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:26,748 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:26,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-19 15:06:26,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:26,961 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:26,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:26,962 INFO L85 PathProgramCache]: Analyzing trace with hash 428608912, now seen corresponding path program 1 times [2021-11-19 15:06:26,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:26,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555816253] [2021-11-19 15:06:26,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:26,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:26,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:27,034 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:27,034 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:27,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555816253] [2021-11-19 15:06:27,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555816253] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:06:27,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [627179433] [2021-11-19 15:06:27,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:27,035 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:27,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:06:27,043 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:06:27,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-19 15:06:27,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:27,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 15:06:27,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:27,260 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 15:06:27,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:27,380 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 15:06:27,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [627179433] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:06:27,380 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [561800632] [2021-11-19 15:06:27,381 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) [2021-11-19 15:06:27,383 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:06:27,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 15 [2021-11-19 15:06:27,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302496568] [2021-11-19 15:06:27,383 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 15:06:27,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-19 15:06:27,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:27,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-19 15:06:27,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-11-19 15:06:27,385 INFO L87 Difference]: Start difference. First operand 1752 states and 6778 transitions. Second operand has 17 states, 16 states have (on average 4.0) internal successors, (64), 16 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:27,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:27,763 INFO L93 Difference]: Finished difference Result 2084 states and 7762 transitions. [2021-11-19 15:06:27,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-19 15:06:27,764 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.0) internal successors, (64), 16 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-19 15:06:27,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:27,807 INFO L225 Difference]: With dead ends: 2084 [2021-11-19 15:06:27,809 INFO L226 Difference]: Without dead ends: 2084 [2021-11-19 15:06:27,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=309, Invalid=683, Unknown=0, NotChecked=0, Total=992 [2021-11-19 15:06:27,815 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 390 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:27,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [390 Valid, 20 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 15:06:27,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2084 states. [2021-11-19 15:06:27,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2084 to 1147. [2021-11-19 15:06:27,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1147 states, 1146 states have (on average 3.9642233856893543) internal successors, (4543), 1146 states have internal predecessors, (4543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:27,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 4543 transitions. [2021-11-19 15:06:27,888 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 4543 transitions. Word has length 27 [2021-11-19 15:06:27,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:27,888 INFO L470 AbstractCegarLoop]: Abstraction has 1147 states and 4543 transitions. [2021-11-19 15:06:27,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.0) internal successors, (64), 16 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:27,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 4543 transitions. [2021-11-19 15:06:27,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-19 15:06:27,895 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:27,895 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:27,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-19 15:06:28,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:28,114 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:28,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:28,115 INFO L85 PathProgramCache]: Analyzing trace with hash 655513361, now seen corresponding path program 1 times [2021-11-19 15:06:28,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:28,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530907448] [2021-11-19 15:06:28,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:28,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:28,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 15:06:28,141 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 15:06:28,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 15:06:28,177 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-19 15:06:28,177 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 15:06:28,177 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-19 15:06:28,177 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-19 15:06:28,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-19 15:06:28,178 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-19 15:06:28,179 WARN L234 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-19 15:06:28,179 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2021-11-19 15:06:28,192 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,192 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,193 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,193 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,193 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,193 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,193 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,193 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,194 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,194 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,194 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,194 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,194 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,194 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,195 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,195 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,195 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,195 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,195 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,195 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,196 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,196 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,196 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,196 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,196 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,196 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,197 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,197 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,197 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,197 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,197 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,197 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,198 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,198 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,198 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,198 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,198 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,198 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,199 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,199 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,199 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,199 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,199 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,199 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,200 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,200 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,200 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,200 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,200 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,200 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,200 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,201 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,201 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,201 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,201 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,201 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,201 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,202 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,202 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,202 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,202 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,203 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,203 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,203 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,203 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,203 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,203 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,204 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,204 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,204 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,204 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,204 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,204 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,204 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,205 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,205 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,205 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,205 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,205 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,205 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,206 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,206 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,206 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,207 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,207 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,207 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,207 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,207 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,207 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,208 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,208 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,208 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,208 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,208 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,208 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,208 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,209 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,209 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,209 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,209 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,209 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,209 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,210 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,210 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,210 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,210 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,210 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,210 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,211 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,211 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,211 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,211 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,211 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,211 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,211 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,212 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,212 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,212 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,212 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,212 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,212 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,213 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,213 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,213 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,213 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,213 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,213 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,213 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,214 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,214 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,214 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,214 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,214 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,214 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,215 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,215 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,215 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,215 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,215 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,215 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,216 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,216 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,216 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,216 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,216 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,216 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,216 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,217 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,217 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,217 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,217 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,217 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,217 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,217 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,218 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,218 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,218 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,218 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,218 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,218 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,219 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,219 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,219 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,219 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,219 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,220 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,220 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,220 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,220 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,221 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,221 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,221 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,221 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,222 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,222 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,223 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,223 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,223 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,223 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,223 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,224 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,224 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,224 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,224 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,224 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,225 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,225 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,225 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,225 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,225 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,226 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,226 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,226 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,226 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,227 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,227 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,227 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,227 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,227 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,228 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:28,230 INFO L148 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2021-11-19 15:06:28,231 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:06:28,231 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 [2021-11-19 15:06:28,232 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-19 15:06:28,233 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-19 15:06:28,233 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 108 transitions, 336 flow [2021-11-19 15:06:28,234 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 114 places, 108 transitions, 336 flow [2021-11-19 15:06:28,234 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 114 places, 108 transitions, 336 flow [2021-11-19 15:06:29,264 INFO L129 PetriNetUnfolder]: 1051/4821 cut-off events. [2021-11-19 15:06:29,264 INFO L130 PetriNetUnfolder]: For 1136/1136 co-relation queries the response was YES. [2021-11-19 15:06:29,291 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5906 conditions, 4821 events. 1051/4821 cut-off events. For 1136/1136 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 38849 event pairs, 522 based on Foata normal form. 0/4273 useless extension candidates. Maximal degree in co-relation 2913. Up to 1024 conditions per place. [2021-11-19 15:06:29,404 INFO L116 LiptonReduction]: Number of co-enabled transitions 4800 [2021-11-19 15:06:31,346 INFO L131 LiptonReduction]: Checked pairs total: 7070 [2021-11-19 15:06:31,346 INFO L133 LiptonReduction]: Total number of compositions: 78 [2021-11-19 15:06:31,348 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 35 transitions, 190 flow [2021-11-19 15:06:31,544 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2810 states, 2800 states have (on average 4.479642857142857) internal successors, (12543), 2809 states have internal predecessors, (12543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:31,552 INFO L276 IsEmpty]: Start isEmpty. Operand has 2810 states, 2800 states have (on average 4.479642857142857) internal successors, (12543), 2809 states have internal predecessors, (12543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:31,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-19 15:06:31,553 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:31,553 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-19 15:06:31,553 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:31,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:31,554 INFO L85 PathProgramCache]: Analyzing trace with hash 43183, now seen corresponding path program 1 times [2021-11-19 15:06:31,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:31,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630741256] [2021-11-19 15:06:31,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:31,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:31,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:31,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:31,571 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:31,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630741256] [2021-11-19 15:06:31,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630741256] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:06:31,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:06:31,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-19 15:06:31,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602245169] [2021-11-19 15:06:31,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:06:31,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:06:31,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:31,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:06:31,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:06:31,581 INFO L87 Difference]: Start difference. First operand has 2810 states, 2800 states have (on average 4.479642857142857) internal successors, (12543), 2809 states have internal predecessors, (12543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:31,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:31,711 INFO L93 Difference]: Finished difference Result 2809 states and 12542 transitions. [2021-11-19 15:06:31,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:06:31,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-11-19 15:06:31,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:31,743 INFO L225 Difference]: With dead ends: 2809 [2021-11-19 15:06:31,743 INFO L226 Difference]: Without dead ends: 2809 [2021-11-19 15:06:31,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:06:31,745 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:31,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:06:31,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2809 states. [2021-11-19 15:06:31,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2809 to 2809. [2021-11-19 15:06:31,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2809 states, 2800 states have (on average 4.479285714285714) internal successors, (12542), 2808 states have internal predecessors, (12542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:31,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2809 states to 2809 states and 12542 transitions. [2021-11-19 15:06:31,890 INFO L78 Accepts]: Start accepts. Automaton has 2809 states and 12542 transitions. Word has length 2 [2021-11-19 15:06:31,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:31,891 INFO L470 AbstractCegarLoop]: Abstraction has 2809 states and 12542 transitions. [2021-11-19 15:06:31,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:31,891 INFO L276 IsEmpty]: Start isEmpty. Operand 2809 states and 12542 transitions. [2021-11-19 15:06:31,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-19 15:06:31,892 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:31,892 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-19 15:06:31,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-19 15:06:31,892 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:31,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:31,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1249579925, now seen corresponding path program 1 times [2021-11-19 15:06:31,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:31,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523306279] [2021-11-19 15:06:31,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:31,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:31,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:31,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 15:06:31,920 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:31,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523306279] [2021-11-19 15:06:31,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523306279] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:06:31,922 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:06:31,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-19 15:06:31,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701966182] [2021-11-19 15:06:31,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:06:31,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:06:31,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:31,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:06:31,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:06:31,924 INFO L87 Difference]: Start difference. First operand 2809 states and 12542 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:31,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:31,986 INFO L93 Difference]: Finished difference Result 2801 states and 12498 transitions. [2021-11-19 15:06:31,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:06:31,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-19 15:06:31,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:32,007 INFO L225 Difference]: With dead ends: 2801 [2021-11-19 15:06:32,007 INFO L226 Difference]: Without dead ends: 2801 [2021-11-19 15:06:32,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:06:32,009 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 8 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:32,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 4 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:06:32,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2801 states. [2021-11-19 15:06:32,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2801 to 2801. [2021-11-19 15:06:32,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2801 states, 2792 states have (on average 4.476361031518625) internal successors, (12498), 2800 states have internal predecessors, (12498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:32,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2801 states to 2801 states and 12498 transitions. [2021-11-19 15:06:32,204 INFO L78 Accepts]: Start accepts. Automaton has 2801 states and 12498 transitions. Word has length 6 [2021-11-19 15:06:32,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:32,204 INFO L470 AbstractCegarLoop]: Abstraction has 2801 states and 12498 transitions. [2021-11-19 15:06:32,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:32,205 INFO L276 IsEmpty]: Start isEmpty. Operand 2801 states and 12498 transitions. [2021-11-19 15:06:32,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-19 15:06:32,205 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:32,205 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:32,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-19 15:06:32,206 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:32,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:32,206 INFO L85 PathProgramCache]: Analyzing trace with hash 85973101, now seen corresponding path program 1 times [2021-11-19 15:06:32,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:32,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936150151] [2021-11-19 15:06:32,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:32,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:32,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:32,228 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:32,229 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:32,229 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936150151] [2021-11-19 15:06:32,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936150151] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:06:32,229 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016710958] [2021-11-19 15:06:32,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:32,230 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:32,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:06:32,237 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:06:32,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-19 15:06:32,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:32,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 15:06:32,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:32,373 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:32,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:32,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:32,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016710958] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:06:32,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1223770671] [2021-11-19 15:06:32,411 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) [2021-11-19 15:06:32,412 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:06:32,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3, 3] total 8 [2021-11-19 15:06:32,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78368287] [2021-11-19 15:06:32,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 15:06:32,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 15:06:32,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:32,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 15:06:32,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-19 15:06:32,414 INFO L87 Difference]: Start difference. First operand 2801 states and 12498 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:32,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:32,572 INFO L93 Difference]: Finished difference Result 4152 states and 17593 transitions. [2021-11-19 15:06:32,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 15:06:32,572 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-19 15:06:32,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:32,597 INFO L225 Difference]: With dead ends: 4152 [2021-11-19 15:06:32,598 INFO L226 Difference]: Without dead ends: 4152 [2021-11-19 15:06:32,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-11-19 15:06:32,599 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 184 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:32,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 7 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:06:32,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4152 states. [2021-11-19 15:06:32,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4152 to 3652. [2021-11-19 15:06:32,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3652 states, 3645 states have (on average 4.3465020576131685) internal successors, (15843), 3651 states have internal predecessors, (15843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:32,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3652 states to 3652 states and 15843 transitions. [2021-11-19 15:06:32,895 INFO L78 Accepts]: Start accepts. Automaton has 3652 states and 15843 transitions. Word has length 7 [2021-11-19 15:06:32,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:32,896 INFO L470 AbstractCegarLoop]: Abstraction has 3652 states and 15843 transitions. [2021-11-19 15:06:32,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:32,897 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 15843 transitions. [2021-11-19 15:06:32,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-19 15:06:32,897 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:32,898 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:32,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-19 15:06:33,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:33,122 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:33,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:33,123 INFO L85 PathProgramCache]: Analyzing trace with hash -822367698, now seen corresponding path program 1 times [2021-11-19 15:06:33,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:33,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717918967] [2021-11-19 15:06:33,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:33,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:33,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:33,197 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:33,197 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:33,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717918967] [2021-11-19 15:06:33,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717918967] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:06:33,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968940770] [2021-11-19 15:06:33,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:33,198 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:33,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:06:33,210 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:06:33,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-19 15:06:33,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:33,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 15:06:33,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:33,401 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-19 15:06:33,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:33,482 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-19 15:06:33,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [968940770] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:06:33,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1054545294] [2021-11-19 15:06:33,483 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) [2021-11-19 15:06:33,484 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:06:33,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 11 [2021-11-19 15:06:33,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070526745] [2021-11-19 15:06:33,485 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 15:06:33,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-19 15:06:33,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:33,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 15:06:33,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2021-11-19 15:06:33,487 INFO L87 Difference]: Start difference. First operand 3652 states and 15843 transitions. Second operand has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:33,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:33,847 INFO L93 Difference]: Finished difference Result 4902 states and 20626 transitions. [2021-11-19 15:06:33,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-19 15:06:33,848 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-19 15:06:33,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:33,883 INFO L225 Difference]: With dead ends: 4902 [2021-11-19 15:06:33,883 INFO L226 Difference]: Without dead ends: 4902 [2021-11-19 15:06:33,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=194, Invalid=456, Unknown=0, NotChecked=0, Total=650 [2021-11-19 15:06:33,886 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 305 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:33,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 13 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:06:34,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4902 states. [2021-11-19 15:06:34,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4902 to 3986. [2021-11-19 15:06:34,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3986 states, 3982 states have (on average 4.36815670517328) internal successors, (17394), 3985 states have internal predecessors, (17394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:34,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3986 states to 3986 states and 17394 transitions. [2021-11-19 15:06:34,203 INFO L78 Accepts]: Start accepts. Automaton has 3986 states and 17394 transitions. Word has length 15 [2021-11-19 15:06:34,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:34,203 INFO L470 AbstractCegarLoop]: Abstraction has 3986 states and 17394 transitions. [2021-11-19 15:06:34,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:34,204 INFO L276 IsEmpty]: Start isEmpty. Operand 3986 states and 17394 transitions. [2021-11-19 15:06:34,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-19 15:06:34,208 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:34,208 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:34,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-19 15:06:34,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-11-19 15:06:34,425 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:34,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:34,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1691468589, now seen corresponding path program 1 times [2021-11-19 15:06:34,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:34,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78331236] [2021-11-19 15:06:34,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:34,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:34,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:34,518 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:34,518 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:34,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78331236] [2021-11-19 15:06:34,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78331236] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:06:34,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037026135] [2021-11-19 15:06:34,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:34,520 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:34,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:06:34,521 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:06:34,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-19 15:06:34,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:34,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 15:06:34,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:34,745 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-19 15:06:34,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:34,858 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-19 15:06:34,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037026135] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:06:34,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1810561232] [2021-11-19 15:06:34,858 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) [2021-11-19 15:06:34,859 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:06:34,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 15 [2021-11-19 15:06:34,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114397870] [2021-11-19 15:06:34,859 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 15:06:34,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-19 15:06:34,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:34,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-19 15:06:34,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-11-19 15:06:34,860 INFO L87 Difference]: Start difference. First operand 3986 states and 17394 transitions. Second operand has 17 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:35,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:35,295 INFO L93 Difference]: Finished difference Result 4592 states and 19475 transitions. [2021-11-19 15:06:35,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-19 15:06:35,296 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-19 15:06:35,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:35,320 INFO L225 Difference]: With dead ends: 4592 [2021-11-19 15:06:35,321 INFO L226 Difference]: Without dead ends: 4592 [2021-11-19 15:06:35,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=342, Invalid=780, Unknown=0, NotChecked=0, Total=1122 [2021-11-19 15:06:35,324 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 487 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:35,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [487 Valid, 21 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 15:06:35,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4592 states. [2021-11-19 15:06:35,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4592 to 2299. [2021-11-19 15:06:35,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2299 states, 2298 states have (on average 4.455613577023499) internal successors, (10239), 2298 states have internal predecessors, (10239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:35,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 10239 transitions. [2021-11-19 15:06:35,484 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 10239 transitions. Word has length 27 [2021-11-19 15:06:35,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:35,486 INFO L470 AbstractCegarLoop]: Abstraction has 2299 states and 10239 transitions. [2021-11-19 15:06:35,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:35,486 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 10239 transitions. [2021-11-19 15:06:35,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-19 15:06:35,494 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:35,494 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:35,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-19 15:06:35,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-11-19 15:06:35,721 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:35,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:35,722 INFO L85 PathProgramCache]: Analyzing trace with hash -591820522, now seen corresponding path program 1 times [2021-11-19 15:06:35,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:35,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322520833] [2021-11-19 15:06:35,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:35,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:35,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 15:06:35,736 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 15:06:35,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 15:06:35,771 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-19 15:06:35,774 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 15:06:35,774 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-19 15:06:35,776 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-19 15:06:35,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-19 15:06:35,776 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-19 15:06:35,777 WARN L234 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-19 15:06:35,777 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2021-11-19 15:06:35,800 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,800 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,800 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,800 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,801 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,801 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,801 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,801 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,801 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,801 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,801 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,801 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,801 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,801 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,802 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,802 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,802 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,802 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,802 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,802 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,802 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,802 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,802 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,802 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,802 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,802 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,802 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,803 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,803 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,803 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,803 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,803 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,804 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,804 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,804 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,804 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,804 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,804 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,805 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,805 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,805 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,805 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,805 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,805 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,806 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,806 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,806 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,806 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,806 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,806 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,807 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,807 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,807 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,807 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,807 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,807 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,808 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,808 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,808 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,808 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,808 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,809 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,809 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,809 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,809 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,809 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,809 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,810 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,810 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,810 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,810 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,810 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,810 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,811 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,811 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,811 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,811 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,811 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,812 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,812 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,812 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,812 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,812 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,812 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,813 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,813 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,813 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,813 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,813 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,813 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,814 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,814 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,814 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,814 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,814 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,814 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,815 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,815 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,815 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,815 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,815 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,816 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,816 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,816 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,816 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,816 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,816 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,817 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,817 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,817 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,817 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,817 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,817 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,818 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,818 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,818 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,818 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,818 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,818 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,819 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,819 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,819 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,819 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,819 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,819 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,820 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,820 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,820 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,820 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,820 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,820 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,821 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,821 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,821 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,821 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,821 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,822 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,822 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,822 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,822 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,822 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,822 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,823 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,823 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,823 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,823 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,823 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,823 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,824 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,824 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,824 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,824 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,824 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,824 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,825 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,825 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,825 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,825 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,825 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,826 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,826 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,826 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,826 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,826 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,826 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,827 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,827 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,827 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,827 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,827 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,827 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,828 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,828 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,828 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,828 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,828 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,829 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,829 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,829 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,829 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,830 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,830 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,830 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,830 WARN L322 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,830 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,831 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,831 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,831 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,831 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,832 WARN L322 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,832 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,832 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,832 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,833 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,833 WARN L322 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,833 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,833 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,834 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,834 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,834 WARN L322 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,834 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,835 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,835 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,835 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,835 WARN L322 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,836 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,836 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,836 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,836 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,836 WARN L322 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,837 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,837 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,837 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,837 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,838 WARN L322 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,838 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,838 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,838 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,839 WARN L322 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,839 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,839 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,839 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,840 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,840 WARN L322 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,840 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of9ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:35,842 INFO L148 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2021-11-19 15:06:35,843 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:06:35,844 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 [2021-11-19 15:06:35,844 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-19 15:06:35,846 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-19 15:06:35,846 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 122 places, 115 transitions, 374 flow [2021-11-19 15:06:35,846 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 122 places, 115 transitions, 374 flow [2021-11-19 15:06:35,847 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 122 places, 115 transitions, 374 flow [2021-11-19 15:06:37,857 INFO L129 PetriNetUnfolder]: 2334/9708 cut-off events. [2021-11-19 15:06:37,858 INFO L130 PetriNetUnfolder]: For 2460/2460 co-relation queries the response was YES. [2021-11-19 15:06:37,937 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12085 conditions, 9708 events. 2334/9708 cut-off events. For 2460/2460 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 91119 event pairs, 1291 based on Foata normal form. 0/8644 useless extension candidates. Maximal degree in co-relation 5891. Up to 2304 conditions per place. [2021-11-19 15:06:38,163 INFO L116 LiptonReduction]: Number of co-enabled transitions 5760 [2021-11-19 15:06:40,407 INFO L131 LiptonReduction]: Checked pairs total: 10747 [2021-11-19 15:06:40,407 INFO L133 LiptonReduction]: Total number of compositions: 82 [2021-11-19 15:06:40,408 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 48 places, 38 transitions, 220 flow [2021-11-19 15:06:40,691 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5626 states, 5615 states have (on average 4.969367764915405) internal successors, (27903), 5625 states have internal predecessors, (27903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:40,707 INFO L276 IsEmpty]: Start isEmpty. Operand has 5626 states, 5615 states have (on average 4.969367764915405) internal successors, (27903), 5625 states have internal predecessors, (27903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:40,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-19 15:06:40,708 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:40,708 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-19 15:06:40,708 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:40,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:40,709 INFO L85 PathProgramCache]: Analyzing trace with hash 49699, now seen corresponding path program 1 times [2021-11-19 15:06:40,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:40,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164336708] [2021-11-19 15:06:40,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:40,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:40,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:40,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:40,723 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:40,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164336708] [2021-11-19 15:06:40,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164336708] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:06:40,724 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:06:40,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-19 15:06:40,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081360715] [2021-11-19 15:06:40,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:06:40,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:06:40,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:40,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:06:40,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:06:40,743 INFO L87 Difference]: Start difference. First operand has 5626 states, 5615 states have (on average 4.969367764915405) internal successors, (27903), 5625 states have internal predecessors, (27903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:40,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:40,842 INFO L93 Difference]: Finished difference Result 5625 states and 27902 transitions. [2021-11-19 15:06:40,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:06:40,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-11-19 15:06:40,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:40,879 INFO L225 Difference]: With dead ends: 5625 [2021-11-19 15:06:40,880 INFO L226 Difference]: Without dead ends: 5625 [2021-11-19 15:06:40,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:06:40,881 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:40,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:06:40,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5625 states. [2021-11-19 15:06:41,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5625 to 5625. [2021-11-19 15:06:41,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5625 states, 5615 states have (on average 4.969189670525378) internal successors, (27902), 5624 states have internal predecessors, (27902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:41,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5625 states to 5625 states and 27902 transitions. [2021-11-19 15:06:41,312 INFO L78 Accepts]: Start accepts. Automaton has 5625 states and 27902 transitions. Word has length 2 [2021-11-19 15:06:41,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:41,312 INFO L470 AbstractCegarLoop]: Abstraction has 5625 states and 27902 transitions. [2021-11-19 15:06:41,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:41,313 INFO L276 IsEmpty]: Start isEmpty. Operand 5625 states and 27902 transitions. [2021-11-19 15:06:41,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-19 15:06:41,313 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:41,313 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-19 15:06:41,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-11-19 15:06:41,314 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:41,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:41,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1282430947, now seen corresponding path program 1 times [2021-11-19 15:06:41,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:41,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225029369] [2021-11-19 15:06:41,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:41,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:41,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:41,333 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 15:06:41,333 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:41,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225029369] [2021-11-19 15:06:41,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225029369] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:06:41,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:06:41,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-19 15:06:41,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401341176] [2021-11-19 15:06:41,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:06:41,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:06:41,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:41,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:06:41,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:06:41,336 INFO L87 Difference]: Start difference. First operand 5625 states and 27902 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:41,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:41,445 INFO L93 Difference]: Finished difference Result 5616 states and 27848 transitions. [2021-11-19 15:06:41,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:06:41,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-19 15:06:41,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:41,483 INFO L225 Difference]: With dead ends: 5616 [2021-11-19 15:06:41,483 INFO L226 Difference]: Without dead ends: 5616 [2021-11-19 15:06:41,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:06:41,484 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:41,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 4 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:06:41,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5616 states. [2021-11-19 15:06:41,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5616 to 5616. [2021-11-19 15:06:41,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5616 states, 5606 states have (on average 4.967534784159829) internal successors, (27848), 5615 states have internal predecessors, (27848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:41,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5616 states to 5616 states and 27848 transitions. [2021-11-19 15:06:41,894 INFO L78 Accepts]: Start accepts. Automaton has 5616 states and 27848 transitions. Word has length 6 [2021-11-19 15:06:41,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:41,894 INFO L470 AbstractCegarLoop]: Abstraction has 5616 states and 27848 transitions. [2021-11-19 15:06:41,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:41,894 INFO L276 IsEmpty]: Start isEmpty. Operand 5616 states and 27848 transitions. [2021-11-19 15:06:41,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-19 15:06:41,895 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:41,895 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:41,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-11-19 15:06:41,896 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:41,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:41,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1096605118, now seen corresponding path program 1 times [2021-11-19 15:06:41,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:41,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372155014] [2021-11-19 15:06:41,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:41,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:41,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:41,918 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:41,918 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:41,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372155014] [2021-11-19 15:06:41,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372155014] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:06:41,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014249931] [2021-11-19 15:06:41,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:41,919 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:41,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:06:41,921 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:06:41,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-19 15:06:42,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:42,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 15:06:42,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:42,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:42,088 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:42,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:42,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2014249931] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:06:42,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1414552397] [2021-11-19 15:06:42,127 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-19 15:06:42,129 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:06:42,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3, 3] total 8 [2021-11-19 15:06:42,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239116323] [2021-11-19 15:06:42,129 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 15:06:42,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 15:06:42,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:42,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 15:06:42,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-19 15:06:42,133 INFO L87 Difference]: Start difference. First operand 5616 states and 27848 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:42,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:42,474 INFO L93 Difference]: Finished difference Result 8369 states and 39609 transitions. [2021-11-19 15:06:42,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 15:06:42,475 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-19 15:06:42,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:42,506 INFO L225 Difference]: With dead ends: 8369 [2021-11-19 15:06:42,506 INFO L226 Difference]: Without dead ends: 8369 [2021-11-19 15:06:42,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-11-19 15:06:42,507 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 200 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:42,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 10 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:06:42,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8369 states. [2021-11-19 15:06:42,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8369 to 7358. [2021-11-19 15:06:42,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7358 states, 7350 states have (on average 4.838775510204082) internal successors, (35565), 7357 states have internal predecessors, (35565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:42,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7358 states to 7358 states and 35565 transitions. [2021-11-19 15:06:42,993 INFO L78 Accepts]: Start accepts. Automaton has 7358 states and 35565 transitions. Word has length 7 [2021-11-19 15:06:42,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:42,993 INFO L470 AbstractCegarLoop]: Abstraction has 7358 states and 35565 transitions. [2021-11-19 15:06:42,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:42,994 INFO L276 IsEmpty]: Start isEmpty. Operand 7358 states and 35565 transitions. [2021-11-19 15:06:42,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-19 15:06:42,994 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:42,994 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:43,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-19 15:06:43,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:43,209 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:43,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:43,210 INFO L85 PathProgramCache]: Analyzing trace with hash -444773348, now seen corresponding path program 1 times [2021-11-19 15:06:43,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:43,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286600859] [2021-11-19 15:06:43,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:43,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:43,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:43,249 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:43,249 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:43,249 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286600859] [2021-11-19 15:06:43,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286600859] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:06:43,250 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120153160] [2021-11-19 15:06:43,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:43,250 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:43,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:06:43,251 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:06:43,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-19 15:06:43,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:43,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 15:06:43,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:43,421 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-19 15:06:43,421 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:43,489 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-19 15:06:43,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120153160] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:06:43,490 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1903929154] [2021-11-19 15:06:43,490 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) [2021-11-19 15:06:43,491 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:06:43,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 11 [2021-11-19 15:06:43,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63937797] [2021-11-19 15:06:43,491 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 15:06:43,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-19 15:06:43,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:43,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 15:06:43,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2021-11-19 15:06:43,492 INFO L87 Difference]: Start difference. First operand 7358 states and 35565 transitions. Second operand has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:43,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:43,847 INFO L93 Difference]: Finished difference Result 10004 states and 46968 transitions. [2021-11-19 15:06:43,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-19 15:06:43,847 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-19 15:06:43,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:43,885 INFO L225 Difference]: With dead ends: 10004 [2021-11-19 15:06:43,885 INFO L226 Difference]: Without dead ends: 10004 [2021-11-19 15:06:43,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=194, Invalid=456, Unknown=0, NotChecked=0, Total=650 [2021-11-19 15:06:43,886 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 196 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:43,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 20 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 15:06:44,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10004 states. [2021-11-19 15:06:44,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10004 to 8130. [2021-11-19 15:06:44,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8130 states, 8125 states have (on average 4.857230769230769) internal successors, (39465), 8129 states have internal predecessors, (39465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:44,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8130 states to 8130 states and 39465 transitions. [2021-11-19 15:06:44,666 INFO L78 Accepts]: Start accepts. Automaton has 8130 states and 39465 transitions. Word has length 15 [2021-11-19 15:06:44,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:44,667 INFO L470 AbstractCegarLoop]: Abstraction has 8130 states and 39465 transitions. [2021-11-19 15:06:44,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:44,667 INFO L276 IsEmpty]: Start isEmpty. Operand 8130 states and 39465 transitions. [2021-11-19 15:06:44,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-19 15:06:44,684 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:44,684 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:44,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-11-19 15:06:44,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:44,889 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:44,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:44,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1584177803, now seen corresponding path program 1 times [2021-11-19 15:06:44,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:44,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937356828] [2021-11-19 15:06:44,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:44,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:44,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:44,964 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:44,965 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:44,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937356828] [2021-11-19 15:06:44,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937356828] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:06:44,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186956789] [2021-11-19 15:06:44,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:44,967 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:44,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:06:44,974 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:06:44,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-19 15:06:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:45,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 15:06:45,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:45,222 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-19 15:06:45,222 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:45,378 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-19 15:06:45,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [186956789] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:06:45,379 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1498273162] [2021-11-19 15:06:45,379 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) [2021-11-19 15:06:45,381 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:06:45,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 15 [2021-11-19 15:06:45,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374368666] [2021-11-19 15:06:45,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 15:06:45,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-19 15:06:45,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:45,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-19 15:06:45,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-11-19 15:06:45,383 INFO L87 Difference]: Start difference. First operand 8130 states and 39465 transitions. Second operand has 17 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:45,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:45,847 INFO L93 Difference]: Finished difference Result 9364 states and 44336 transitions. [2021-11-19 15:06:45,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-19 15:06:45,847 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-19 15:06:45,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:45,876 INFO L225 Difference]: With dead ends: 9364 [2021-11-19 15:06:45,876 INFO L226 Difference]: Without dead ends: 9364 [2021-11-19 15:06:45,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=376, Invalid=884, Unknown=0, NotChecked=0, Total=1260 [2021-11-19 15:06:45,878 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 567 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:45,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [567 Valid, 20 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 15:06:45,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9364 states. [2021-11-19 15:06:46,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9364 to 4603. [2021-11-19 15:06:46,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4603 states, 4602 states have (on average 4.950673620165146) internal successors, (22783), 4602 states have internal predecessors, (22783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:46,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4603 states to 4603 states and 22783 transitions. [2021-11-19 15:06:46,237 INFO L78 Accepts]: Start accepts. Automaton has 4603 states and 22783 transitions. Word has length 27 [2021-11-19 15:06:46,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:46,237 INFO L470 AbstractCegarLoop]: Abstraction has 4603 states and 22783 transitions. [2021-11-19 15:06:46,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:46,237 INFO L276 IsEmpty]: Start isEmpty. Operand 4603 states and 22783 transitions. [2021-11-19 15:06:46,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-19 15:06:46,249 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:46,250 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:46,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-11-19 15:06:46,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:46,477 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:46,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:46,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1103562257, now seen corresponding path program 1 times [2021-11-19 15:06:46,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:46,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638305798] [2021-11-19 15:06:46,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:46,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:46,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 15:06:46,495 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 15:06:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 15:06:46,520 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-19 15:06:46,521 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 15:06:46,521 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-19 15:06:46,521 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-19 15:06:46,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-11-19 15:06:46,522 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-19 15:06:46,522 WARN L234 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-19 15:06:46,522 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2021-11-19 15:06:46,538 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,539 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,539 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,539 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,539 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,539 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,539 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,540 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,540 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,540 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,540 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,540 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,540 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,541 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,541 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,541 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,541 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,541 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,542 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,542 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,542 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,542 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,542 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,542 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,543 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,543 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,543 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,543 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,543 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,543 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,544 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,544 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,544 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,544 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,544 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,544 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,545 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,545 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,545 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,545 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,545 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,545 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,546 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,546 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,546 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,546 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,546 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,546 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,547 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,547 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,547 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,547 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,547 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,547 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,548 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,548 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,548 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,548 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,548 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,548 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,549 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,549 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,549 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,549 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,549 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,549 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,550 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,550 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,550 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,550 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,550 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,550 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,551 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,551 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,551 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,551 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,551 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,551 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,552 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,552 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,552 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,552 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,552 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,552 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,553 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,553 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,553 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,553 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,553 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,553 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,554 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,554 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,554 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,554 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,554 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,554 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,555 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,555 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,555 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,555 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,555 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,555 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,556 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,556 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,556 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,556 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,556 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,556 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,556 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,557 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,557 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,557 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,557 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,557 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,557 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,558 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,558 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,558 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,558 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,558 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,558 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,559 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,559 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,559 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,559 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,559 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,559 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,559 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,560 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,560 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,560 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,560 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,560 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,560 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,561 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,561 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,561 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,561 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,561 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,561 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,562 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,562 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,562 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,562 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,562 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,562 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,563 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,563 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,563 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,563 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,563 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,563 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,564 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,564 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,564 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,564 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,564 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,564 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,565 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,565 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,565 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,565 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,565 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,565 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,566 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,566 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,566 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,566 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,566 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,566 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,566 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,567 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,567 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,567 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,567 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,567 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,567 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,568 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,568 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,568 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,568 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,568 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,568 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,569 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,569 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,569 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,569 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,569 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,569 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,569 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,570 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,570 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,570 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,570 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,570 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,570 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,571 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,571 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,571 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,571 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,571 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,572 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,572 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,572 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,572 WARN L322 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,573 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,573 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,573 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,573 WARN L322 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,573 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,574 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,574 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,574 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,574 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,574 WARN L322 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,575 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,575 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,575 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,575 WARN L322 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,575 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,576 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,576 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,576 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,576 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,576 WARN L322 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,577 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,577 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,577 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,577 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,578 WARN L322 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,578 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,579 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,579 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,579 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,579 WARN L322 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,580 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,580 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,580 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,580 WARN L322 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,580 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,581 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,581 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,581 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,581 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,581 WARN L322 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,582 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,582 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,582 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,582 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of10ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,582 WARN L322 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:06:46,586 INFO L148 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2021-11-19 15:06:46,587 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:06:46,588 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 [2021-11-19 15:06:46,588 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-19 15:06:46,589 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-19 15:06:46,590 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 130 places, 122 transitions, 414 flow [2021-11-19 15:06:46,590 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 130 places, 122 transitions, 414 flow [2021-11-19 15:06:46,590 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 130 places, 122 transitions, 414 flow [2021-11-19 15:06:50,384 INFO L129 PetriNetUnfolder]: 5153/19715 cut-off events. [2021-11-19 15:06:50,385 INFO L130 PetriNetUnfolder]: For 5330/5330 co-relation queries the response was YES. [2021-11-19 15:06:50,531 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24921 conditions, 19715 events. 5153/19715 cut-off events. For 5330/5330 co-relation queries the response was YES. Maximal size of possible extension queue 390. Compared 207422 event pairs, 3084 based on Foata normal form. 0/17623 useless extension candidates. Maximal degree in co-relation 12070. Up to 5120 conditions per place. [2021-11-19 15:06:50,910 INFO L116 LiptonReduction]: Number of co-enabled transitions 6800 [2021-11-19 15:06:53,321 INFO L131 LiptonReduction]: Checked pairs total: 11854 [2021-11-19 15:06:53,322 INFO L133 LiptonReduction]: Total number of compositions: 86 [2021-11-19 15:06:53,323 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 52 places, 41 transitions, 252 flow [2021-11-19 15:06:54,009 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 11258 states, 11246 states have (on average 5.463186910901654) internal successors, (61439), 11257 states have internal predecessors, (61439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:54,031 INFO L276 IsEmpty]: Start isEmpty. Operand has 11258 states, 11246 states have (on average 5.463186910901654) internal successors, (61439), 11257 states have internal predecessors, (61439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:54,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-19 15:06:54,031 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:54,031 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-19 15:06:54,032 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:54,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:54,032 INFO L85 PathProgramCache]: Analyzing trace with hash 56575, now seen corresponding path program 1 times [2021-11-19 15:06:54,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:54,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975504264] [2021-11-19 15:06:54,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:54,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:54,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:54,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:54,047 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:54,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975504264] [2021-11-19 15:06:54,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975504264] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:06:54,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:06:54,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-19 15:06:54,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017332208] [2021-11-19 15:06:54,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:06:54,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:06:54,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:54,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:06:54,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:06:54,078 INFO L87 Difference]: Start difference. First operand has 11258 states, 11246 states have (on average 5.463186910901654) internal successors, (61439), 11257 states have internal predecessors, (61439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:54,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:54,426 INFO L93 Difference]: Finished difference Result 11247 states and 61373 transitions. [2021-11-19 15:06:54,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:06:54,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-11-19 15:06:54,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:54,490 INFO L225 Difference]: With dead ends: 11247 [2021-11-19 15:06:54,490 INFO L226 Difference]: Without dead ends: 11247 [2021-11-19 15:06:54,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:06:54,493 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 14 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:54,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 4 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:06:54,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11247 states. [2021-11-19 15:06:54,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11247 to 11247. [2021-11-19 15:06:54,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11247 states, 11236 states have (on average 5.462175151299395) internal successors, (61373), 11246 states have internal predecessors, (61373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:54,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11247 states to 11247 states and 61373 transitions. [2021-11-19 15:06:54,867 INFO L78 Accepts]: Start accepts. Automaton has 11247 states and 61373 transitions. Word has length 2 [2021-11-19 15:06:54,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:54,867 INFO L470 AbstractCegarLoop]: Abstraction has 11247 states and 61373 transitions. [2021-11-19 15:06:54,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:54,868 INFO L276 IsEmpty]: Start isEmpty. Operand 11247 states and 61373 transitions. [2021-11-19 15:06:54,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-19 15:06:54,868 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:54,868 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:54,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-11-19 15:06:54,868 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:54,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:54,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1725891420, now seen corresponding path program 1 times [2021-11-19 15:06:54,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:54,869 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631791307] [2021-11-19 15:06:54,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:54,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:54,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:54,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:54,890 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:54,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631791307] [2021-11-19 15:06:54,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631791307] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:06:54,891 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347072523] [2021-11-19 15:06:54,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:54,891 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:54,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:06:54,914 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:06:54,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-19 15:06:55,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:55,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 15:06:55,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:55,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:55,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:55,125 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:55,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347072523] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:06:55,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1583814028] [2021-11-19 15:06:55,125 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) [2021-11-19 15:06:55,126 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:06:55,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3, 3] total 8 [2021-11-19 15:06:55,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562033048] [2021-11-19 15:06:55,126 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 15:06:55,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 15:06:55,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:55,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 15:06:55,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-19 15:06:55,127 INFO L87 Difference]: Start difference. First operand 11247 states and 61373 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:55,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:55,675 INFO L93 Difference]: Finished difference Result 16810 states and 87922 transitions. [2021-11-19 15:06:55,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 15:06:55,675 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-19 15:06:55,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:55,779 INFO L225 Difference]: With dead ends: 16810 [2021-11-19 15:06:55,779 INFO L226 Difference]: Without dead ends: 16810 [2021-11-19 15:06:55,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-11-19 15:06:55,780 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 135 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:55,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 9 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:06:55,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16810 states. [2021-11-19 15:06:56,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16810 to 14776. [2021-11-19 15:06:56,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14776 states, 14767 states have (on average 5.334123383219341) internal successors, (78769), 14775 states have internal predecessors, (78769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:56,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14776 states to 14776 states and 78769 transitions. [2021-11-19 15:06:56,753 INFO L78 Accepts]: Start accepts. Automaton has 14776 states and 78769 transitions. Word has length 7 [2021-11-19 15:06:56,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:56,753 INFO L470 AbstractCegarLoop]: Abstraction has 14776 states and 78769 transitions. [2021-11-19 15:06:56,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:56,754 INFO L276 IsEmpty]: Start isEmpty. Operand 14776 states and 78769 transitions. [2021-11-19 15:06:56,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-19 15:06:56,754 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:56,754 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:56,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-11-19 15:06:56,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-11-19 15:06:56,955 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:56,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:56,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1227201065, now seen corresponding path program 1 times [2021-11-19 15:06:56,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:56,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028068553] [2021-11-19 15:06:56,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:56,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:56,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:57,003 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:57,003 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:57,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028068553] [2021-11-19 15:06:57,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028068553] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:06:57,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473488878] [2021-11-19 15:06:57,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:57,004 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:57,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:06:57,006 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:06:57,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-11-19 15:06:57,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:57,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 15:06:57,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:57,237 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:57,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:57,332 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:57,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473488878] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:06:57,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2098106482] [2021-11-19 15:06:57,333 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) [2021-11-19 15:06:57,334 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:06:57,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 12 [2021-11-19 15:06:57,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68298413] [2021-11-19 15:06:57,335 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 15:06:57,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-19 15:06:57,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:57,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-19 15:06:57,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2021-11-19 15:06:57,338 INFO L87 Difference]: Start difference. First operand 14776 states and 78769 transitions. Second operand has 14 states, 13 states have (on average 3.076923076923077) internal successors, (40), 13 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:57,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:06:57,747 INFO L93 Difference]: Finished difference Result 20136 states and 104605 transitions. [2021-11-19 15:06:57,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-19 15:06:57,748 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.076923076923077) internal successors, (40), 13 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-19 15:06:57,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:06:57,843 INFO L225 Difference]: With dead ends: 20136 [2021-11-19 15:06:57,843 INFO L226 Difference]: Without dead ends: 20136 [2021-11-19 15:06:57,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=216, Invalid=540, Unknown=0, NotChecked=0, Total=756 [2021-11-19 15:06:57,844 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 326 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:06:57,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [326 Valid, 18 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:06:57,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20136 states. [2021-11-19 15:06:58,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20136 to 16378. [2021-11-19 15:06:58,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16378 states, 16373 states have (on average 5.353936358639223) internal successors, (87660), 16377 states have internal predecessors, (87660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:58,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16378 states to 16378 states and 87660 transitions. [2021-11-19 15:06:58,818 INFO L78 Accepts]: Start accepts. Automaton has 16378 states and 87660 transitions. Word has length 15 [2021-11-19 15:06:58,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:06:58,818 INFO L470 AbstractCegarLoop]: Abstraction has 16378 states and 87660 transitions. [2021-11-19 15:06:58,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.076923076923077) internal successors, (40), 13 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:06:58,819 INFO L276 IsEmpty]: Start isEmpty. Operand 16378 states and 87660 transitions. [2021-11-19 15:06:58,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-19 15:06:58,824 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:06:58,825 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:06:58,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-11-19 15:06:59,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-11-19 15:06:59,041 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:06:59,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:06:59,042 INFO L85 PathProgramCache]: Analyzing trace with hash 479040613, now seen corresponding path program 1 times [2021-11-19 15:06:59,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:06:59,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881568062] [2021-11-19 15:06:59,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:59,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:06:59,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:59,129 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:06:59,129 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:06:59,129 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881568062] [2021-11-19 15:06:59,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881568062] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:06:59,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429816292] [2021-11-19 15:06:59,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:06:59,130 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:06:59,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:06:59,131 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:06:59,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-11-19 15:06:59,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:06:59,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 15:06:59,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:06:59,384 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 73 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-19 15:06:59,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:06:59,530 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 73 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-19 15:06:59,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429816292] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:06:59,530 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1775285351] [2021-11-19 15:06:59,530 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) [2021-11-19 15:06:59,532 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:06:59,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 17 [2021-11-19 15:06:59,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419568736] [2021-11-19 15:06:59,532 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 15:06:59,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-19 15:06:59,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:06:59,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-19 15:06:59,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2021-11-19 15:06:59,534 INFO L87 Difference]: Start difference. First operand 16378 states and 87660 transitions. Second operand has 19 states, 18 states have (on average 3.888888888888889) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:07:00,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:07:00,163 INFO L93 Difference]: Finished difference Result 18940 states and 99061 transitions. [2021-11-19 15:07:00,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-19 15:07:00,164 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.888888888888889) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-19 15:07:00,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:07:00,259 INFO L225 Difference]: With dead ends: 18940 [2021-11-19 15:07:00,259 INFO L226 Difference]: Without dead ends: 18940 [2021-11-19 15:07:00,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=441, Invalid=1041, Unknown=0, NotChecked=0, Total=1482 [2021-11-19 15:07:00,261 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 693 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 15:07:00,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [693 Valid, 25 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 15:07:00,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18940 states. [2021-11-19 15:07:01,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18940 to 9211. [2021-11-19 15:07:01,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9211 states, 9210 states have (on average 5.447882736156352) internal successors, (50175), 9210 states have internal predecessors, (50175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:07:01,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9211 states to 9211 states and 50175 transitions. [2021-11-19 15:07:01,072 INFO L78 Accepts]: Start accepts. Automaton has 9211 states and 50175 transitions. Word has length 31 [2021-11-19 15:07:01,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:07:01,072 INFO L470 AbstractCegarLoop]: Abstraction has 9211 states and 50175 transitions. [2021-11-19 15:07:01,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.888888888888889) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:07:01,072 INFO L276 IsEmpty]: Start isEmpty. Operand 9211 states and 50175 transitions. [2021-11-19 15:07:01,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-19 15:07:01,086 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:07:01,086 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:07:01,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2021-11-19 15:07:01,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:07:01,287 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:07:01,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:07:01,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1114723927, now seen corresponding path program 1 times [2021-11-19 15:07:01,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:07:01,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233907448] [2021-11-19 15:07:01,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:07:01,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:07:01,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 15:07:01,303 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 15:07:01,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 15:07:01,328 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-19 15:07:01,329 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 15:07:01,329 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-19 15:07:01,329 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-19 15:07:01,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-11-19 15:07:01,330 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-19 15:07:01,330 WARN L234 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-19 15:07:01,330 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2021-11-19 15:07:01,346 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,346 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,346 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,346 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,346 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,347 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,347 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,347 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,347 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,347 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,347 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,347 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,348 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,348 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,348 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,348 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,348 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,348 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,348 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,349 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,349 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,349 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,349 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,349 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,349 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,349 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,350 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,350 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,350 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,350 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,350 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,350 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,350 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,351 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,351 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,351 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,351 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,351 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,351 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,351 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,352 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,352 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,352 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,352 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,352 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,352 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,352 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,353 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,353 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,353 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,353 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,353 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,353 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,353 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,354 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,354 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,354 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,354 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,354 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,354 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,355 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,355 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,355 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,355 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,355 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,355 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,355 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,355 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,356 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,356 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,356 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,356 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,356 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,356 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,356 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,357 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,357 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,357 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,357 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,357 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,357 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,357 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,358 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,358 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,358 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,358 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,358 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,358 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,359 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,359 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,359 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,359 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,359 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,359 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,359 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,360 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,360 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,360 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,360 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,360 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,360 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,361 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,361 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,361 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,361 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,361 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,361 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,362 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,362 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,362 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,362 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,362 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,362 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,362 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,363 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,363 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,363 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,363 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,363 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,363 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,364 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,364 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,364 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,364 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,364 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,364 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,364 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,365 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,365 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,365 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,365 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,365 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,365 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,365 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,366 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,366 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,366 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,366 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,366 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,366 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,366 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,367 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,367 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,367 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,367 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,367 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,367 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,367 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,368 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,368 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,368 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,368 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,368 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,368 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,368 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,368 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,369 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,369 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,369 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,369 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,369 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,369 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,370 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,370 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,370 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,370 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,370 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,370 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,371 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,371 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,371 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,371 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,371 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,371 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,371 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,372 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,372 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,372 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,372 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,372 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,372 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,373 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,373 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,373 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,373 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,373 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,373 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,373 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,373 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,374 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,374 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,374 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,374 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,374 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,374 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,374 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,375 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,375 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,375 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,375 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,375 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,375 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,376 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,376 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,376 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,376 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,376 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,376 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,376 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,377 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,377 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,377 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,377 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,377 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,377 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,377 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,378 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,378 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,378 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,378 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,378 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,378 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,379 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,379 WARN L322 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,379 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,379 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,380 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,380 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,380 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,380 WARN L322 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,380 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,381 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,381 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,381 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,381 WARN L322 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,381 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,382 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,382 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,382 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,382 WARN L322 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,382 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,383 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,383 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,383 WARN L322 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,383 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,383 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,384 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,384 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,384 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,384 WARN L322 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,384 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,385 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,385 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,385 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,385 WARN L322 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,386 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,386 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,386 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,386 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,386 WARN L322 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,387 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,387 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,387 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,387 WARN L322 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,387 WARN L322 ript$VariableManager]: TermVariabe |threadThread9of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,388 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,388 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,388 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,388 WARN L322 ript$VariableManager]: TermVariabe |threadThread10of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,388 WARN L322 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,389 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,389 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,389 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,389 WARN L322 ript$VariableManager]: TermVariabe |threadThread11of11ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,389 WARN L322 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:07:01,392 INFO L148 ThreadInstanceAdder]: Constructed 11 joinOtherThreadTransitions. [2021-11-19 15:07:01,393 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:07:01,393 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 [2021-11-19 15:07:01,393 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-19 15:07:01,395 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-19 15:07:01,395 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 138 places, 129 transitions, 456 flow [2021-11-19 15:07:01,396 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 138 places, 129 transitions, 456 flow [2021-11-19 15:07:01,396 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 138 places, 129 transitions, 456 flow [2021-11-19 15:07:09,137 INFO L129 PetriNetUnfolder]: 11300/40218 cut-off events. [2021-11-19 15:07:09,137 INFO L130 PetriNetUnfolder]: For 11539/11539 co-relation queries the response was YES. [2021-11-19 15:07:09,503 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51582 conditions, 40218 events. 11300/40218 cut-off events. For 11539/11539 co-relation queries the response was YES. Maximal size of possible extension queue 763. Compared 472350 event pairs, 7181 based on Foata normal form. 0/36074 useless extension candidates. Maximal degree in co-relation 24906. Up to 11264 conditions per place. [2021-11-19 15:07:10,732 INFO L116 LiptonReduction]: Number of co-enabled transitions 7920 [2021-11-19 15:07:12,937 INFO L131 LiptonReduction]: Checked pairs total: 13114 [2021-11-19 15:07:12,938 INFO L133 LiptonReduction]: Total number of compositions: 90 [2021-11-19 15:07:12,939 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 44 transitions, 286 flow [2021-11-19 15:07:14,370 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 22522 states, 22509 states have (on average 5.959527300191034) internal successors, (134143), 22521 states have internal predecessors, (134143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:07:14,407 INFO L276 IsEmpty]: Start isEmpty. Operand has 22522 states, 22509 states have (on average 5.959527300191034) internal successors, (134143), 22521 states have internal predecessors, (134143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:07:14,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-19 15:07:14,407 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:07:14,407 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-19 15:07:14,408 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:07:14,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:07:14,409 INFO L85 PathProgramCache]: Analyzing trace with hash 63813, now seen corresponding path program 1 times [2021-11-19 15:07:14,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:07:14,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423496831] [2021-11-19 15:07:14,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:07:14,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:07:14,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:07:14,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:07:14,425 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:07:14,425 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423496831] [2021-11-19 15:07:14,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423496831] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:07:14,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:07:14,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-19 15:07:14,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935349452] [2021-11-19 15:07:14,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:07:14,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:07:14,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:07:14,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:07:14,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:07:14,474 INFO L87 Difference]: Start difference. First operand has 22522 states, 22509 states have (on average 5.959527300191034) internal successors, (134143), 22521 states have internal predecessors, (134143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:07:14,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:07:14,835 INFO L93 Difference]: Finished difference Result 22521 states and 134142 transitions. [2021-11-19 15:07:14,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:07:14,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-11-19 15:07:14,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:07:15,000 INFO L225 Difference]: With dead ends: 22521 [2021-11-19 15:07:15,000 INFO L226 Difference]: Without dead ends: 22521 [2021-11-19 15:07:15,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:07:15,001 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:07:15,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:07:15,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22521 states. [2021-11-19 15:07:16,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22521 to 22521. [2021-11-19 15:07:16,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22521 states, 22509 states have (on average 5.95948287351726) internal successors, (134142), 22520 states have internal predecessors, (134142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:07:16,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22521 states to 22521 states and 134142 transitions. [2021-11-19 15:07:16,306 INFO L78 Accepts]: Start accepts. Automaton has 22521 states and 134142 transitions. Word has length 2 [2021-11-19 15:07:16,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:07:16,306 INFO L470 AbstractCegarLoop]: Abstraction has 22521 states and 134142 transitions. [2021-11-19 15:07:16,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:07:16,306 INFO L276 IsEmpty]: Start isEmpty. Operand 22521 states and 134142 transitions. [2021-11-19 15:07:16,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-19 15:07:16,307 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:07:16,307 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-19 15:07:16,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-11-19 15:07:16,307 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:07:16,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:07:16,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1132489220, now seen corresponding path program 1 times [2021-11-19 15:07:16,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:07:16,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941347574] [2021-11-19 15:07:16,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:07:16,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:07:16,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:07:16,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 15:07:16,324 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:07:16,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941347574] [2021-11-19 15:07:16,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941347574] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:07:16,324 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:07:16,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-19 15:07:16,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040669687] [2021-11-19 15:07:16,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:07:16,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:07:16,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:07:16,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:07:16,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:07:16,326 INFO L87 Difference]: Start difference. First operand 22521 states and 134142 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:07:16,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:07:16,607 INFO L93 Difference]: Finished difference Result 22510 states and 134065 transitions. [2021-11-19 15:07:16,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:07:16,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-19 15:07:16,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:07:16,744 INFO L225 Difference]: With dead ends: 22510 [2021-11-19 15:07:16,745 INFO L226 Difference]: Without dead ends: 22510 [2021-11-19 15:07:16,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:07:16,745 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 11 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:07:16,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 4 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:07:17,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22510 states. [2021-11-19 15:07:18,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22510 to 22510. [2021-11-19 15:07:18,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22510 states, 22498 states have (on average 5.9589741310338695) internal successors, (134065), 22509 states have internal predecessors, (134065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:07:18,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22510 states to 22510 states and 134065 transitions. [2021-11-19 15:07:18,348 INFO L78 Accepts]: Start accepts. Automaton has 22510 states and 134065 transitions. Word has length 6 [2021-11-19 15:07:18,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:07:18,348 INFO L470 AbstractCegarLoop]: Abstraction has 22510 states and 134065 transitions. [2021-11-19 15:07:18,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:07:18,349 INFO L276 IsEmpty]: Start isEmpty. Operand 22510 states and 134065 transitions. [2021-11-19 15:07:18,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-19 15:07:18,349 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:07:18,349 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:07:18,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-11-19 15:07:18,350 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:07:18,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:07:18,351 INFO L85 PathProgramCache]: Analyzing trace with hash -747425236, now seen corresponding path program 1 times [2021-11-19 15:07:18,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:07:18,351 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449100725] [2021-11-19 15:07:18,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:07:18,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:07:18,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:07:18,373 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:07:18,373 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:07:18,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449100725] [2021-11-19 15:07:18,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449100725] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:07:18,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691141648] [2021-11-19 15:07:18,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:07:18,375 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:07:18,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:07:18,389 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:07:18,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-11-19 15:07:18,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:07:18,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 15:07:18,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:07:18,560 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:07:18,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:07:18,592 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:07:18,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691141648] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:07:18,593 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2002039629] [2021-11-19 15:07:18,594 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) [2021-11-19 15:07:18,595 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:07:18,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2021-11-19 15:07:18,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952917362] [2021-11-19 15:07:18,596 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 15:07:18,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 15:07:18,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:07:18,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 15:07:18,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:07:18,597 INFO L87 Difference]: Start difference. First operand 22510 states and 134065 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:07:19,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:07:19,484 INFO L93 Difference]: Finished difference Result 22499 states and 134043 transitions. [2021-11-19 15:07:19,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 15:07:19,485 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-19 15:07:19,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:07:19,623 INFO L225 Difference]: With dead ends: 22499 [2021-11-19 15:07:19,623 INFO L226 Difference]: Without dead ends: 22499 [2021-11-19 15:07:19,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:07:19,624 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 43 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:07:19,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 8 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:07:19,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22499 states. [2021-11-19 15:07:20,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22499 to 22499. [2021-11-19 15:07:20,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22499 states, 22490 states have (on average 5.960115606936416) internal successors, (134043), 22498 states have internal predecessors, (134043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:07:21,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22499 states to 22499 states and 134043 transitions. [2021-11-19 15:07:21,149 INFO L78 Accepts]: Start accepts. Automaton has 22499 states and 134043 transitions. Word has length 7 [2021-11-19 15:07:21,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:07:21,149 INFO L470 AbstractCegarLoop]: Abstraction has 22499 states and 134043 transitions. [2021-11-19 15:07:21,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:07:21,149 INFO L276 IsEmpty]: Start isEmpty. Operand 22499 states and 134043 transitions. [2021-11-19 15:07:21,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-19 15:07:21,150 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:07:21,150 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:07:21,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-11-19 15:07:21,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:07:21,377 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:07:21,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:07:21,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1213946771, now seen corresponding path program 1 times [2021-11-19 15:07:21,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:07:21,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507452017] [2021-11-19 15:07:21,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:07:21,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:07:21,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:07:21,438 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 15:07:21,439 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:07:21,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507452017] [2021-11-19 15:07:21,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507452017] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:07:21,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242140980] [2021-11-19 15:07:21,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:07:21,440 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:07:21,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:07:21,441 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:07:21,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-11-19 15:07:21,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:07:21,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 15:07:21,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:07:21,678 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 15:07:21,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:07:21,773 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 15:07:21,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1242140980] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:07:21,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [76255647] [2021-11-19 15:07:21,774 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) [2021-11-19 15:07:21,775 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:07:21,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 9 [2021-11-19 15:07:21,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972703485] [2021-11-19 15:07:21,776 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 15:07:21,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-19 15:07:21,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:07:21,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-19 15:07:21,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-11-19 15:07:21,778 INFO L87 Difference]: Start difference. First operand 22499 states and 134043 transitions. Second operand has 11 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:07:22,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:07:22,338 INFO L93 Difference]: Finished difference Result 33690 states and 193045 transitions. [2021-11-19 15:07:22,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 15:07:22,339 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-19 15:07:22,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:07:22,562 INFO L225 Difference]: With dead ends: 33690 [2021-11-19 15:07:22,562 INFO L226 Difference]: Without dead ends: 33690 [2021-11-19 15:07:22,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2021-11-19 15:07:22,563 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 188 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:07:22,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 8 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:07:22,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33690 states. [2021-11-19 15:07:24,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33690 to 29612. [2021-11-19 15:07:24,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29612 states, 29603 states have (on average 5.831908928149174) internal successors, (172642), 29611 states have internal predecessors, (172642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:07:24,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29612 states to 29612 states and 172642 transitions. [2021-11-19 15:07:24,454 INFO L78 Accepts]: Start accepts. Automaton has 29612 states and 172642 transitions. Word has length 19 [2021-11-19 15:07:24,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:07:24,454 INFO L470 AbstractCegarLoop]: Abstraction has 29612 states and 172642 transitions. [2021-11-19 15:07:24,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:07:24,454 INFO L276 IsEmpty]: Start isEmpty. Operand 29612 states and 172642 transitions. [2021-11-19 15:07:24,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-19 15:07:24,455 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:07:24,455 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:07:24,481 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2021-11-19 15:07:24,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:07:24,655 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:07:24,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:07:24,656 INFO L85 PathProgramCache]: Analyzing trace with hash -647955055, now seen corresponding path program 1 times [2021-11-19 15:07:24,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:07:24,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013288230] [2021-11-19 15:07:24,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:07:24,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:07:24,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:07:24,697 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:07:24,697 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:07:24,697 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013288230] [2021-11-19 15:07:24,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013288230] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:07:24,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956537892] [2021-11-19 15:07:24,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:07:24,698 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:07:24,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:07:24,699 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:07:24,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-11-19 15:07:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:07:24,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 15:07:24,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:07:24,899 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-19 15:07:24,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:07:24,992 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-19 15:07:24,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956537892] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:07:24,993 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1807313691] [2021-11-19 15:07:24,993 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) [2021-11-19 15:07:24,993 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:07:24,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 12 [2021-11-19 15:07:24,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618731966] [2021-11-19 15:07:24,997 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 15:07:24,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-19 15:07:24,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:07:24,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-19 15:07:24,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2021-11-19 15:07:24,998 INFO L87 Difference]: Start difference. First operand 29612 states and 172642 transitions. Second operand has 14 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:07:26,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:07:26,376 INFO L93 Difference]: Finished difference Result 40598 states and 230879 transitions. [2021-11-19 15:07:26,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-19 15:07:26,376 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-19 15:07:26,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:07:26,595 INFO L225 Difference]: With dead ends: 40598 [2021-11-19 15:07:26,595 INFO L226 Difference]: Without dead ends: 40598 [2021-11-19 15:07:26,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=244, Invalid=568, Unknown=0, NotChecked=0, Total=812 [2021-11-19 15:07:26,596 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 403 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 15:07:26,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [403 Valid, 20 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 15:07:26,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40598 states. [2021-11-19 15:07:28,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40598 to 32998. [2021-11-19 15:07:28,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32998 states, 32992 states have (on average 5.848660281280311) internal successors, (192959), 32997 states have internal predecessors, (192959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:07:28,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32998 states to 32998 states and 192959 transitions. [2021-11-19 15:07:28,391 INFO L78 Accepts]: Start accepts. Automaton has 32998 states and 192959 transitions. Word has length 19 [2021-11-19 15:07:28,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:07:28,391 INFO L470 AbstractCegarLoop]: Abstraction has 32998 states and 192959 transitions. [2021-11-19 15:07:28,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:07:28,391 INFO L276 IsEmpty]: Start isEmpty. Operand 32998 states and 192959 transitions. [2021-11-19 15:07:28,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-19 15:07:28,394 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:07:28,395 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:07:28,421 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2021-11-19 15:07:28,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:07:28,595 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-19 15:07:28,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:07:28,596 INFO L85 PathProgramCache]: Analyzing trace with hash 656578110, now seen corresponding path program 1 times [2021-11-19 15:07:28,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:07:28,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373708806] [2021-11-19 15:07:28,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:07:28,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:07:28,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:07:28,683 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:07:28,683 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:07:28,683 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373708806] [2021-11-19 15:07:28,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373708806] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:07:28,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330848152] [2021-11-19 15:07:28,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:07:28,684 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:07:28,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:07:28,685 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:07:28,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fe17b52-da67-4493-b80d-362385618e7d/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-11-19 15:07:28,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:07:28,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 15:07:28,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:07:28,916 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-19 15:07:28,916 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:07:29,047 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-19 15:07:29,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330848152] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:07:29,047 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [320763237] [2021-11-19 15:07:29,048 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) [2021-11-19 15:07:29,049 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:07:29,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 16 [2021-11-19 15:07:29,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788809652] [2021-11-19 15:07:29,050 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 15:07:29,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-19 15:07:29,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:07:29,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-19 15:07:29,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2021-11-19 15:07:29,051 INFO L87 Difference]: Start difference. First operand 32998 states and 192959 transitions. Second operand has 18 states, 17 states have (on average 4.0) internal successors, (68), 17 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:07:30,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:07:30,824 INFO L93 Difference]: Finished difference Result 41168 states and 236638 transitions. [2021-11-19 15:07:30,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-19 15:07:30,825 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 4.0) internal successors, (68), 17 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-19 15:07:30,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:07:31,157 INFO L225 Difference]: With dead ends: 41168 [2021-11-19 15:07:31,157 INFO L226 Difference]: Without dead ends: 41168 [2021-11-19 15:07:31,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=460, Invalid=1100, Unknown=0, NotChecked=0, Total=1560 [2021-11-19 15:07:31,158 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 623 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 15:07:31,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [623 Valid, 24 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 15:07:31,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41168 states.