./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c0b350b5c7953744a22c8334b20c4dc8efdff09f1ecb36de8b1744d1e20f0260 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:06:40,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:06:40,971 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:06:40,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:06:41,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:06:41,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:06:41,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:06:41,003 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:06:41,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:06:41,006 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:06:41,007 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:06:41,008 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:06:41,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:06:41,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:06:41,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:06:41,012 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:06:41,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:06:41,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:06:41,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:06:41,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:06:41,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:06:41,021 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:06:41,022 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:06:41,023 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:06:41,027 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:06:41,028 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:06:41,028 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:06:41,029 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:06:41,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:06:41,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:06:41,031 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:06:41,032 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:06:41,033 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:06:41,034 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:06:41,035 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:06:41,035 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:06:41,036 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:06:41,036 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:06:41,036 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:06:41,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:06:41,038 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:06:41,039 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 20:06:41,060 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:06:41,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:06:41,061 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:06:41,062 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:06:41,062 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:06:41,063 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:06:41,063 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:06:41,064 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:06:41,064 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:06:41,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:06:41,064 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:06:41,065 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:06:41,065 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:06:41,065 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:06:41,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:06:41,065 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:06:41,066 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:06:41,066 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:06:41,066 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:06:41,066 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:06:41,067 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:06:41,067 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:06:41,067 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:06:41,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:06:41,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:06:41,068 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:06:41,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:06:41,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:06:41,068 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:06:41,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:06:41,069 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:06:41,069 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:06:41,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:06:41,069 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0b350b5c7953744a22c8334b20c4dc8efdff09f1ecb36de8b1744d1e20f0260 [2022-11-18 20:06:41,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:06:41,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:06:41,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:06:41,363 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:06:41,364 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:06:41,365 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c [2022-11-18 20:06:41,438 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/data/c22905234/aecda32c9b6d491d902677217d2db27f/FLAGd70164847 [2022-11-18 20:06:41,987 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:06:41,991 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c [2022-11-18 20:06:42,004 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/data/c22905234/aecda32c9b6d491d902677217d2db27f/FLAGd70164847 [2022-11-18 20:06:42,314 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/data/c22905234/aecda32c9b6d491d902677217d2db27f [2022-11-18 20:06:42,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:06:42,324 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:06:42,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:06:42,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:06:42,331 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:06:42,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:06:42" (1/1) ... [2022-11-18 20:06:42,334 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23adc574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:42, skipping insertion in model container [2022-11-18 20:06:42,334 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:06:42" (1/1) ... [2022-11-18 20:06:42,341 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:06:42,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:06:42,623 WARN L234 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_358ad12b-3ad0-4f13-8777-ae580302c682/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c[4225,4238] [2022-11-18 20:06:42,634 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:06:42,642 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:06:42,674 WARN L234 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_358ad12b-3ad0-4f13-8777-ae580302c682/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c[4225,4238] [2022-11-18 20:06:42,678 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:06:42,694 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:06:42,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:42 WrapperNode [2022-11-18 20:06:42,695 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:06:42,696 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:06:42,696 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:06:42,696 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:06:42,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:42" (1/1) ... [2022-11-18 20:06:42,714 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:42" (1/1) ... [2022-11-18 20:06:42,747 INFO L138 Inliner]: procedures = 29, calls = 88, calls flagged for inlining = 22, calls inlined = 32, statements flattened = 386 [2022-11-18 20:06:42,748 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:06:42,748 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:06:42,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:06:42,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:06:42,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:42" (1/1) ... [2022-11-18 20:06:42,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:42" (1/1) ... [2022-11-18 20:06:42,767 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:42" (1/1) ... [2022-11-18 20:06:42,767 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:42" (1/1) ... [2022-11-18 20:06:42,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:42" (1/1) ... [2022-11-18 20:06:42,797 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:42" (1/1) ... [2022-11-18 20:06:42,815 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:42" (1/1) ... [2022-11-18 20:06:42,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:42" (1/1) ... [2022-11-18 20:06:42,821 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:06:42,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:06:42,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:06:42,822 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:06:42,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:42" (1/1) ... [2022-11-18 20:06:42,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:06:42,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:06:42,855 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:06:42,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:06:42,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:06:42,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:06:42,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:06:42,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:06:42,899 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 20:06:42,899 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 20:06:42,899 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 20:06:42,899 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 20:06:42,899 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 20:06:42,899 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 20:06:42,900 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-18 20:06:42,900 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-18 20:06:42,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:06:42,900 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-18 20:06:42,900 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-18 20:06:42,901 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-11-18 20:06:42,901 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-11-18 20:06:42,901 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:06:42,901 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:06:42,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:06:42,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:06:42,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:06:42,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:06:42,904 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:06:43,036 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:06:43,039 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:06:43,716 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:06:44,071 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:06:44,072 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-18 20:06:44,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:06:44 BoogieIcfgContainer [2022-11-18 20:06:44,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:06:44,082 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:06:44,082 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:06:44,085 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:06:44,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:06:42" (1/3) ... [2022-11-18 20:06:44,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b26e980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:06:44, skipping insertion in model container [2022-11-18 20:06:44,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:42" (2/3) ... [2022-11-18 20:06:44,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b26e980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:06:44, skipping insertion in model container [2022-11-18 20:06:44,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:06:44" (3/3) ... [2022-11-18 20:06:44,090 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-2.wvr.c [2022-11-18 20:06:44,100 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:06:44,111 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:06:44,112 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:06:44,113 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:06:44,273 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-11-18 20:06:44,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 307 places, 311 transitions, 694 flow [2022-11-18 20:06:44,482 INFO L130 PetriNetUnfolder]: 21/265 cut-off events. [2022-11-18 20:06:44,483 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-18 20:06:44,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 265 events. 21/265 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 286 event pairs, 0 based on Foata normal form. 0/243 useless extension candidates. Maximal degree in co-relation 225. Up to 3 conditions per place. [2022-11-18 20:06:44,496 INFO L82 GeneralOperation]: Start removeDead. Operand has 307 places, 311 transitions, 694 flow [2022-11-18 20:06:44,505 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 254 places, 256 transitions, 560 flow [2022-11-18 20:06:44,515 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:06:44,522 INFO L357 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=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3a22bac7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:06:44,522 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-11-18 20:06:44,640 INFO L130 PetriNetUnfolder]: 21/255 cut-off events. [2022-11-18 20:06:44,640 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-18 20:06:44,641 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:06:44,641 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:06:44,642 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-18 20:06:44,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:06:44,648 INFO L85 PathProgramCache]: Analyzing trace with hash -545117691, now seen corresponding path program 1 times [2022-11-18 20:06:44,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:06:44,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733835393] [2022-11-18 20:06:44,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:06:44,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:06:44,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:45,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:06:45,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:06:45,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733835393] [2022-11-18 20:06:45,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733835393] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:06:45,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:06:45,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:06:45,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286387672] [2022-11-18 20:06:45,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:06:45,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:06:45,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:06:45,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:06:45,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:06:45,135 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 315 [2022-11-18 20:06:45,140 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 256 transitions, 560 flow. Second operand has 2 states, 2 states have (on average 273.5) internal successors, (547), 2 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:06:45,140 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:06:45,140 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 315 [2022-11-18 20:06:45,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:06:45,565 INFO L130 PetriNetUnfolder]: 409/1072 cut-off events. [2022-11-18 20:06:45,565 INFO L131 PetriNetUnfolder]: For 345/355 co-relation queries the response was YES. [2022-11-18 20:06:45,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1956 conditions, 1072 events. 409/1072 cut-off events. For 345/355 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 4736 event pairs, 192 based on Foata normal form. 170/1111 useless extension candidates. Maximal degree in co-relation 1710. Up to 553 conditions per place. [2022-11-18 20:06:45,583 INFO L137 encePairwiseOnDemand]: 303/315 looper letters, 26 selfloop transitions, 0 changer transitions 5/244 dead transitions. [2022-11-18 20:06:45,584 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 244 transitions, 588 flow [2022-11-18 20:06:45,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:06:45,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-18 20:06:45,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 566 transitions. [2022-11-18 20:06:45,605 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8984126984126984 [2022-11-18 20:06:45,606 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 566 transitions. [2022-11-18 20:06:45,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 566 transitions. [2022-11-18 20:06:45,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:06:45,615 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 566 transitions. [2022-11-18 20:06:45,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 283.0) internal successors, (566), 2 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:06:45,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 315.0) internal successors, (945), 3 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:06:45,630 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 315.0) internal successors, (945), 3 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:06:45,632 INFO L175 Difference]: Start difference. First operand has 254 places, 256 transitions, 560 flow. Second operand 2 states and 566 transitions. [2022-11-18 20:06:45,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 244 transitions, 588 flow [2022-11-18 20:06:45,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 244 transitions, 556 flow, removed 0 selfloop flow, removed 12 redundant places. [2022-11-18 20:06:45,646 INFO L231 Difference]: Finished difference. Result has 243 places, 239 transitions, 494 flow [2022-11-18 20:06:45,648 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=494, PETRI_PLACES=243, PETRI_TRANSITIONS=239} [2022-11-18 20:06:45,654 INFO L288 CegarLoopForPetriNet]: 254 programPoint places, -11 predicate places. [2022-11-18 20:06:45,655 INFO L495 AbstractCegarLoop]: Abstraction has has 243 places, 239 transitions, 494 flow [2022-11-18 20:06:45,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 273.5) internal successors, (547), 2 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:06:45,656 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:06:45,656 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:06:45,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:06:45,657 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-18 20:06:45,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:06:45,658 INFO L85 PathProgramCache]: Analyzing trace with hash 5049228, now seen corresponding path program 1 times [2022-11-18 20:06:45,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:06:45,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279744384] [2022-11-18 20:06:45,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:06:45,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:06:45,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:47,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:06:47,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:06:47,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279744384] [2022-11-18 20:06:47,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279744384] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:06:47,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:06:47,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-18 20:06:47,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812590561] [2022-11-18 20:06:47,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:06:47,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 20:06:47,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:06:47,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 20:06:47,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:06:47,272 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 315 [2022-11-18 20:06:47,292 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 239 transitions, 494 flow. Second operand has 13 states, 13 states have (on average 212.46153846153845) internal successors, (2762), 13 states have internal predecessors, (2762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:06:47,292 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:06:47,292 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 315 [2022-11-18 20:06:47,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:06:50,206 INFO L130 PetriNetUnfolder]: 2512/6046 cut-off events. [2022-11-18 20:06:50,206 INFO L131 PetriNetUnfolder]: For 512/528 co-relation queries the response was YES. [2022-11-18 20:06:50,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10095 conditions, 6046 events. 2512/6046 cut-off events. For 512/528 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 47052 event pairs, 445 based on Foata normal form. 52/5338 useless extension candidates. Maximal degree in co-relation 10092. Up to 781 conditions per place. [2022-11-18 20:06:50,248 INFO L137 encePairwiseOnDemand]: 297/315 looper letters, 179 selfloop transitions, 16 changer transitions 145/504 dead transitions. [2022-11-18 20:06:50,248 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 504 transitions, 1824 flow [2022-11-18 20:06:50,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 20:06:50,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 20:06:50,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4713 transitions. [2022-11-18 20:06:50,258 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7124716553287982 [2022-11-18 20:06:50,258 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4713 transitions. [2022-11-18 20:06:50,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4713 transitions. [2022-11-18 20:06:50,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:06:50,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4713 transitions. [2022-11-18 20:06:50,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 224.42857142857142) internal successors, (4713), 21 states have internal predecessors, (4713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:06:50,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 315.0) internal successors, (6930), 22 states have internal predecessors, (6930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:06:50,290 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 315.0) internal successors, (6930), 22 states have internal predecessors, (6930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:06:50,291 INFO L175 Difference]: Start difference. First operand has 243 places, 239 transitions, 494 flow. Second operand 21 states and 4713 transitions. [2022-11-18 20:06:50,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 504 transitions, 1824 flow [2022-11-18 20:06:50,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 504 transitions, 1824 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:06:50,304 INFO L231 Difference]: Finished difference. Result has 269 places, 250 transitions, 596 flow [2022-11-18 20:06:50,305 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=596, PETRI_PLACES=269, PETRI_TRANSITIONS=250} [2022-11-18 20:06:50,305 INFO L288 CegarLoopForPetriNet]: 254 programPoint places, 15 predicate places. [2022-11-18 20:06:50,306 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 250 transitions, 596 flow [2022-11-18 20:06:50,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 212.46153846153845) internal successors, (2762), 13 states have internal predecessors, (2762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:06:50,308 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:06:50,308 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:06:50,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:06:50,309 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-18 20:06:50,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:06:50,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1624835207, now seen corresponding path program 1 times [2022-11-18 20:06:50,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:06:50,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444799036] [2022-11-18 20:06:50,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:06:50,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:06:50,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:51,193 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:06:51,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:06:51,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444799036] [2022-11-18 20:06:51,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444799036] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:06:51,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251448378] [2022-11-18 20:06:51,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:06:51,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:06:51,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:06:51,203 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:06:51,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:06:51,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:51,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 20:06:51,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:06:52,199 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:06:52,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:06:52,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:06:52,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251448378] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:06:52,473 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:06:52,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 11] total 19 [2022-11-18 20:06:52,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795817261] [2022-11-18 20:06:52,476 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:06:52,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 20:06:52,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:06:52,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 20:06:52,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-11-18 20:06:52,484 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 315 [2022-11-18 20:06:52,491 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 250 transitions, 596 flow. Second operand has 19 states, 19 states have (on average 224.47368421052633) internal successors, (4265), 19 states have internal predecessors, (4265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:06:52,491 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:06:52,492 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 315 [2022-11-18 20:06:52,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:06:58,355 INFO L130 PetriNetUnfolder]: 8899/19861 cut-off events. [2022-11-18 20:06:58,356 INFO L131 PetriNetUnfolder]: For 7643/7657 co-relation queries the response was YES. [2022-11-18 20:06:58,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39277 conditions, 19861 events. 8899/19861 cut-off events. For 7643/7657 co-relation queries the response was YES. Maximal size of possible extension queue 680. Compared 186529 event pairs, 476 based on Foata normal form. 127/17491 useless extension candidates. Maximal degree in co-relation 39262. Up to 3565 conditions per place. [2022-11-18 20:06:58,541 INFO L137 encePairwiseOnDemand]: 299/315 looper letters, 277 selfloop transitions, 39 changer transitions 172/666 dead transitions. [2022-11-18 20:06:58,541 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 666 transitions, 2932 flow [2022-11-18 20:06:58,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-18 20:06:58,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-11-18 20:06:58,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 6833 transitions. [2022-11-18 20:06:58,687 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7480021893814998 [2022-11-18 20:06:58,687 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 6833 transitions. [2022-11-18 20:06:58,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 6833 transitions. [2022-11-18 20:06:58,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:06:58,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 6833 transitions. [2022-11-18 20:06:58,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 235.6206896551724) internal successors, (6833), 29 states have internal predecessors, (6833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:06:58,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 315.0) internal successors, (9450), 30 states have internal predecessors, (9450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:06:58,723 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 315.0) internal successors, (9450), 30 states have internal predecessors, (9450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:06:58,723 INFO L175 Difference]: Start difference. First operand has 269 places, 250 transitions, 596 flow. Second operand 29 states and 6833 transitions. [2022-11-18 20:06:58,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 666 transitions, 2932 flow [2022-11-18 20:06:58,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 666 transitions, 2718 flow, removed 105 selfloop flow, removed 8 redundant places. [2022-11-18 20:06:58,953 INFO L231 Difference]: Finished difference. Result has 299 places, 282 transitions, 886 flow [2022-11-18 20:06:58,954 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=886, PETRI_PLACES=299, PETRI_TRANSITIONS=282} [2022-11-18 20:06:58,954 INFO L288 CegarLoopForPetriNet]: 254 programPoint places, 45 predicate places. [2022-11-18 20:06:58,955 INFO L495 AbstractCegarLoop]: Abstraction has has 299 places, 282 transitions, 886 flow [2022-11-18 20:06:58,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 224.47368421052633) internal successors, (4265), 19 states have internal predecessors, (4265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:06:58,957 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:06:58,957 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:06:58,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:06:59,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:06:59,164 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-18 20:06:59,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:06:59,165 INFO L85 PathProgramCache]: Analyzing trace with hash -78965756, now seen corresponding path program 1 times [2022-11-18 20:06:59,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:06:59,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344030601] [2022-11-18 20:06:59,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:06:59,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:06:59,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:00,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:07:00,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:07:00,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344030601] [2022-11-18 20:07:00,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344030601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:07:00,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:07:00,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:07:00,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313001994] [2022-11-18 20:07:00,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:07:00,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:07:00,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:07:00,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:07:00,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:07:00,392 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 315 [2022-11-18 20:07:00,396 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 282 transitions, 886 flow. Second operand has 10 states, 10 states have (on average 232.5) internal successors, (2325), 10 states have internal predecessors, (2325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:00,396 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:07:00,397 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 315 [2022-11-18 20:07:00,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:07:03,827 INFO L130 PetriNetUnfolder]: 5520/14462 cut-off events. [2022-11-18 20:07:03,827 INFO L131 PetriNetUnfolder]: For 14393/14441 co-relation queries the response was YES. [2022-11-18 20:07:03,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32083 conditions, 14462 events. 5520/14462 cut-off events. For 14393/14441 co-relation queries the response was YES. Maximal size of possible extension queue 437. Compared 139803 event pairs, 1008 based on Foata normal form. 13/12638 useless extension candidates. Maximal degree in co-relation 32052. Up to 4737 conditions per place. [2022-11-18 20:07:04,019 INFO L137 encePairwiseOnDemand]: 302/315 looper letters, 177 selfloop transitions, 18 changer transitions 8/390 dead transitions. [2022-11-18 20:07:04,020 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 390 transitions, 1803 flow [2022-11-18 20:07:04,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:07:04,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-18 20:07:04,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2411 transitions. [2022-11-18 20:07:04,026 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7653968253968254 [2022-11-18 20:07:04,027 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2411 transitions. [2022-11-18 20:07:04,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2411 transitions. [2022-11-18 20:07:04,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:07:04,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2411 transitions. [2022-11-18 20:07:04,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 241.1) internal successors, (2411), 10 states have internal predecessors, (2411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:04,054 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 315.0) internal successors, (3465), 11 states have internal predecessors, (3465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:04,056 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 315.0) internal successors, (3465), 11 states have internal predecessors, (3465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:04,056 INFO L175 Difference]: Start difference. First operand has 299 places, 282 transitions, 886 flow. Second operand 10 states and 2411 transitions. [2022-11-18 20:07:04,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 390 transitions, 1803 flow [2022-11-18 20:07:04,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 390 transitions, 1755 flow, removed 20 selfloop flow, removed 8 redundant places. [2022-11-18 20:07:04,121 INFO L231 Difference]: Finished difference. Result has 290 places, 290 transitions, 951 flow [2022-11-18 20:07:04,122 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=858, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=951, PETRI_PLACES=290, PETRI_TRANSITIONS=290} [2022-11-18 20:07:04,123 INFO L288 CegarLoopForPetriNet]: 254 programPoint places, 36 predicate places. [2022-11-18 20:07:04,124 INFO L495 AbstractCegarLoop]: Abstraction has has 290 places, 290 transitions, 951 flow [2022-11-18 20:07:04,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 232.5) internal successors, (2325), 10 states have internal predecessors, (2325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:04,125 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:07:04,125 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:07:04,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:07:04,126 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-18 20:07:04,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:04,126 INFO L85 PathProgramCache]: Analyzing trace with hash 926139546, now seen corresponding path program 2 times [2022-11-18 20:07:04,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:04,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414319273] [2022-11-18 20:07:04,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:04,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:04,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:05,129 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:07:05,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:07:05,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414319273] [2022-11-18 20:07:05,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414319273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:07:05,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:07:05,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:07:05,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941187423] [2022-11-18 20:07:05,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:07:05,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:07:05,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:07:05,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:07:05,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:07:05,134 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 315 [2022-11-18 20:07:05,138 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 290 transitions, 951 flow. Second operand has 10 states, 10 states have (on average 232.5) internal successors, (2325), 10 states have internal predecessors, (2325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:05,138 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:07:05,138 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 315 [2022-11-18 20:07:05,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:07:08,131 INFO L130 PetriNetUnfolder]: 5517/14465 cut-off events. [2022-11-18 20:07:08,131 INFO L131 PetriNetUnfolder]: For 14093/14209 co-relation queries the response was YES. [2022-11-18 20:07:08,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33745 conditions, 14465 events. 5517/14465 cut-off events. For 14093/14209 co-relation queries the response was YES. Maximal size of possible extension queue 437. Compared 139744 event pairs, 1047 based on Foata normal form. 24/12653 useless extension candidates. Maximal degree in co-relation 33714. Up to 4737 conditions per place. [2022-11-18 20:07:08,331 INFO L137 encePairwiseOnDemand]: 302/315 looper letters, 169 selfloop transitions, 20 changer transitions 8/384 dead transitions. [2022-11-18 20:07:08,332 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 384 transitions, 1810 flow [2022-11-18 20:07:08,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:07:08,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-18 20:07:08,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2405 transitions. [2022-11-18 20:07:08,337 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7634920634920634 [2022-11-18 20:07:08,337 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2405 transitions. [2022-11-18 20:07:08,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2405 transitions. [2022-11-18 20:07:08,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:07:08,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2405 transitions. [2022-11-18 20:07:08,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 240.5) internal successors, (2405), 10 states have internal predecessors, (2405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:08,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 315.0) internal successors, (3465), 11 states have internal predecessors, (3465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:08,351 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 315.0) internal successors, (3465), 11 states have internal predecessors, (3465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:08,351 INFO L175 Difference]: Start difference. First operand has 290 places, 290 transitions, 951 flow. Second operand 10 states and 2405 transitions. [2022-11-18 20:07:08,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 384 transitions, 1810 flow [2022-11-18 20:07:08,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 384 transitions, 1784 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-18 20:07:08,395 INFO L231 Difference]: Finished difference. Result has 294 places, 291 transitions, 996 flow [2022-11-18 20:07:08,395 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=931, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=996, PETRI_PLACES=294, PETRI_TRANSITIONS=291} [2022-11-18 20:07:08,399 INFO L288 CegarLoopForPetriNet]: 254 programPoint places, 40 predicate places. [2022-11-18 20:07:08,399 INFO L495 AbstractCegarLoop]: Abstraction has has 294 places, 291 transitions, 996 flow [2022-11-18 20:07:08,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 232.5) internal successors, (2325), 10 states have internal predecessors, (2325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:08,400 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:07:08,400 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:07:08,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:07:08,401 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-18 20:07:08,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:08,402 INFO L85 PathProgramCache]: Analyzing trace with hash -486989834, now seen corresponding path program 1 times [2022-11-18 20:07:08,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:08,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422078644] [2022-11-18 20:07:08,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:08,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:08,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:09,373 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:07:09,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:07:09,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422078644] [2022-11-18 20:07:09,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422078644] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:07:09,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:07:09,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 20:07:09,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355988519] [2022-11-18 20:07:09,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:07:09,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 20:07:09,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:07:09,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 20:07:09,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:07:09,379 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 315 [2022-11-18 20:07:09,382 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 291 transitions, 996 flow. Second operand has 11 states, 11 states have (on average 217.36363636363637) internal successors, (2391), 11 states have internal predecessors, (2391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:09,383 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:07:09,383 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 315 [2022-11-18 20:07:09,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:07:12,707 INFO L130 PetriNetUnfolder]: 4561/12088 cut-off events. [2022-11-18 20:07:12,707 INFO L131 PetriNetUnfolder]: For 14757/14834 co-relation queries the response was YES. [2022-11-18 20:07:12,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28875 conditions, 12088 events. 4561/12088 cut-off events. For 14757/14834 co-relation queries the response was YES. Maximal size of possible extension queue 349. Compared 113180 event pairs, 1025 based on Foata normal form. 41/10647 useless extension candidates. Maximal degree in co-relation 28843. Up to 2266 conditions per place. [2022-11-18 20:07:12,801 INFO L137 encePairwiseOnDemand]: 301/315 looper letters, 189 selfloop transitions, 13 changer transitions 22/393 dead transitions. [2022-11-18 20:07:12,801 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 393 transitions, 1937 flow [2022-11-18 20:07:12,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:07:12,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-18 20:07:12,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2490 transitions. [2022-11-18 20:07:12,807 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7186147186147186 [2022-11-18 20:07:12,807 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2490 transitions. [2022-11-18 20:07:12,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2490 transitions. [2022-11-18 20:07:12,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:07:12,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2490 transitions. [2022-11-18 20:07:12,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 226.36363636363637) internal successors, (2490), 11 states have internal predecessors, (2490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:12,818 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 315.0) internal successors, (3780), 12 states have internal predecessors, (3780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:12,820 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 315.0) internal successors, (3780), 12 states have internal predecessors, (3780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:12,820 INFO L175 Difference]: Start difference. First operand has 294 places, 291 transitions, 996 flow. Second operand 11 states and 2490 transitions. [2022-11-18 20:07:12,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 393 transitions, 1937 flow [2022-11-18 20:07:12,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 393 transitions, 1865 flow, removed 24 selfloop flow, removed 7 redundant places. [2022-11-18 20:07:12,867 INFO L231 Difference]: Finished difference. Result has 294 places, 283 transitions, 917 flow [2022-11-18 20:07:12,868 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=919, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=917, PETRI_PLACES=294, PETRI_TRANSITIONS=283} [2022-11-18 20:07:12,868 INFO L288 CegarLoopForPetriNet]: 254 programPoint places, 40 predicate places. [2022-11-18 20:07:12,868 INFO L495 AbstractCegarLoop]: Abstraction has has 294 places, 283 transitions, 917 flow [2022-11-18 20:07:12,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 217.36363636363637) internal successors, (2391), 11 states have internal predecessors, (2391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:12,869 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:07:12,870 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:07:12,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:07:12,870 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-18 20:07:12,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:12,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1175413460, now seen corresponding path program 1 times [2022-11-18 20:07:12,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:12,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181674059] [2022-11-18 20:07:12,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:12,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:13,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:13,885 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:07:13,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:07:13,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181674059] [2022-11-18 20:07:13,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181674059] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:07:13,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628400021] [2022-11-18 20:07:13,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:13,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:07:13,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:07:13,891 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:07:13,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:07:14,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:14,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-18 20:07:14,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:07:14,970 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:07:14,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:07:15,578 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:07:15,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628400021] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:07:15,579 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:07:15,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15, 14] total 35 [2022-11-18 20:07:15,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596084112] [2022-11-18 20:07:15,579 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:07:15,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-18 20:07:15,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:07:15,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-18 20:07:15,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=1025, Unknown=0, NotChecked=0, Total=1190 [2022-11-18 20:07:15,588 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 315 [2022-11-18 20:07:15,594 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 283 transitions, 917 flow. Second operand has 35 states, 35 states have (on average 211.6) internal successors, (7406), 35 states have internal predecessors, (7406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:15,595 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:07:15,595 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 315 [2022-11-18 20:07:15,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:07:20,037 INFO L130 PetriNetUnfolder]: 7775/20082 cut-off events. [2022-11-18 20:07:20,037 INFO L131 PetriNetUnfolder]: For 26967/27047 co-relation queries the response was YES. [2022-11-18 20:07:20,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48239 conditions, 20082 events. 7775/20082 cut-off events. For 26967/27047 co-relation queries the response was YES. Maximal size of possible extension queue 574. Compared 205727 event pairs, 1877 based on Foata normal form. 191/17825 useless extension candidates. Maximal degree in co-relation 48209. Up to 4872 conditions per place. [2022-11-18 20:07:20,251 INFO L137 encePairwiseOnDemand]: 296/315 looper letters, 281 selfloop transitions, 28 changer transitions 1/472 dead transitions. [2022-11-18 20:07:20,251 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 472 transitions, 2471 flow [2022-11-18 20:07:20,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 20:07:20,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-18 20:07:20,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 4356 transitions. [2022-11-18 20:07:20,261 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6914285714285714 [2022-11-18 20:07:20,261 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 4356 transitions. [2022-11-18 20:07:20,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 4356 transitions. [2022-11-18 20:07:20,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:07:20,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 4356 transitions. [2022-11-18 20:07:20,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 217.8) internal successors, (4356), 20 states have internal predecessors, (4356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:20,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 315.0) internal successors, (6615), 21 states have internal predecessors, (6615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:20,707 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 315.0) internal successors, (6615), 21 states have internal predecessors, (6615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:20,718 INFO L175 Difference]: Start difference. First operand has 294 places, 283 transitions, 917 flow. Second operand 20 states and 4356 transitions. [2022-11-18 20:07:20,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 472 transitions, 2471 flow [2022-11-18 20:07:20,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 472 transitions, 2413 flow, removed 13 selfloop flow, removed 10 redundant places. [2022-11-18 20:07:20,834 INFO L231 Difference]: Finished difference. Result has 307 places, 299 transitions, 1082 flow [2022-11-18 20:07:20,834 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=879, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=1082, PETRI_PLACES=307, PETRI_TRANSITIONS=299} [2022-11-18 20:07:20,835 INFO L288 CegarLoopForPetriNet]: 254 programPoint places, 53 predicate places. [2022-11-18 20:07:20,835 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 299 transitions, 1082 flow [2022-11-18 20:07:20,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 211.6) internal successors, (7406), 35 states have internal predecessors, (7406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:20,837 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:07:20,837 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:07:20,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:07:21,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:07:21,044 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-18 20:07:21,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:21,045 INFO L85 PathProgramCache]: Analyzing trace with hash 187070608, now seen corresponding path program 1 times [2022-11-18 20:07:21,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:21,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216921166] [2022-11-18 20:07:21,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:21,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:21,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:21,891 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:07:21,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:07:21,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216921166] [2022-11-18 20:07:21,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216921166] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:07:21,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:07:21,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 20:07:21,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571515680] [2022-11-18 20:07:21,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:07:21,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:07:21,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:07:21,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:07:21,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:07:21,896 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 315 [2022-11-18 20:07:21,898 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 299 transitions, 1082 flow. Second operand has 8 states, 8 states have (on average 230.0) internal successors, (1840), 8 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:21,898 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:07:21,899 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 315 [2022-11-18 20:07:21,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:07:26,305 INFO L130 PetriNetUnfolder]: 9017/21865 cut-off events. [2022-11-18 20:07:26,306 INFO L131 PetriNetUnfolder]: For 36661/36749 co-relation queries the response was YES. [2022-11-18 20:07:26,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57119 conditions, 21865 events. 9017/21865 cut-off events. For 36661/36749 co-relation queries the response was YES. Maximal size of possible extension queue 682. Compared 219877 event pairs, 1862 based on Foata normal form. 122/19310 useless extension candidates. Maximal degree in co-relation 57081. Up to 8293 conditions per place. [2022-11-18 20:07:26,504 INFO L137 encePairwiseOnDemand]: 304/315 looper letters, 167 selfloop transitions, 26 changer transitions 24/402 dead transitions. [2022-11-18 20:07:26,504 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 402 transitions, 2148 flow [2022-11-18 20:07:26,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:07:26,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-18 20:07:26,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1921 transitions. [2022-11-18 20:07:26,508 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7623015873015873 [2022-11-18 20:07:26,508 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1921 transitions. [2022-11-18 20:07:26,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1921 transitions. [2022-11-18 20:07:26,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:07:26,509 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1921 transitions. [2022-11-18 20:07:26,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 240.125) internal successors, (1921), 8 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:26,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 315.0) internal successors, (2835), 9 states have internal predecessors, (2835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:26,517 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 315.0) internal successors, (2835), 9 states have internal predecessors, (2835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:26,518 INFO L175 Difference]: Start difference. First operand has 307 places, 299 transitions, 1082 flow. Second operand 8 states and 1921 transitions. [2022-11-18 20:07:26,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 402 transitions, 2148 flow [2022-11-18 20:07:26,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 402 transitions, 2074 flow, removed 29 selfloop flow, removed 7 redundant places. [2022-11-18 20:07:26,655 INFO L231 Difference]: Finished difference. Result has 311 places, 309 transitions, 1222 flow [2022-11-18 20:07:26,655 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=1040, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1222, PETRI_PLACES=311, PETRI_TRANSITIONS=309} [2022-11-18 20:07:26,657 INFO L288 CegarLoopForPetriNet]: 254 programPoint places, 57 predicate places. [2022-11-18 20:07:26,658 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 309 transitions, 1222 flow [2022-11-18 20:07:26,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 230.0) internal successors, (1840), 8 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:26,658 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:07:26,659 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:07:26,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:07:26,659 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-18 20:07:26,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:26,660 INFO L85 PathProgramCache]: Analyzing trace with hash -581006550, now seen corresponding path program 2 times [2022-11-18 20:07:26,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:26,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104301264] [2022-11-18 20:07:26,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:26,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:26,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:27,722 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:07:27,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:07:27,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104301264] [2022-11-18 20:07:27,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104301264] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:07:27,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446302170] [2022-11-18 20:07:27,723 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:07:27,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:07:27,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:07:27,726 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:07:27,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:07:27,967 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:07:27,967 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:07:27,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 20:07:27,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:07:28,506 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:07:28,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:07:28,839 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:07:28,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [446302170] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:07:28,840 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:07:28,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 29 [2022-11-18 20:07:28,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52626943] [2022-11-18 20:07:28,841 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:07:28,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-18 20:07:28,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:07:28,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-18 20:07:28,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2022-11-18 20:07:28,848 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 315 [2022-11-18 20:07:28,853 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 309 transitions, 1222 flow. Second operand has 29 states, 29 states have (on average 208.0) internal successors, (6032), 29 states have internal predecessors, (6032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:28,854 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:07:28,854 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 315 [2022-11-18 20:07:28,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:07:40,172 INFO L130 PetriNetUnfolder]: 13445/31365 cut-off events. [2022-11-18 20:07:40,172 INFO L131 PetriNetUnfolder]: For 71629/71647 co-relation queries the response was YES. [2022-11-18 20:07:40,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86179 conditions, 31365 events. 13445/31365 cut-off events. For 71629/71647 co-relation queries the response was YES. Maximal size of possible extension queue 1054. Compared 328207 event pairs, 1201 based on Foata normal form. 211/27935 useless extension candidates. Maximal degree in co-relation 86138. Up to 4880 conditions per place. [2022-11-18 20:07:40,454 INFO L137 encePairwiseOnDemand]: 292/315 looper letters, 515 selfloop transitions, 101 changer transitions 253/1028 dead transitions. [2022-11-18 20:07:40,454 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 1028 transitions, 6951 flow [2022-11-18 20:07:40,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-18 20:07:40,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2022-11-18 20:07:40,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 10708 transitions. [2022-11-18 20:07:40,469 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6937479753806285 [2022-11-18 20:07:40,469 INFO L72 ComplementDD]: Start complementDD. Operand 49 states and 10708 transitions. [2022-11-18 20:07:40,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 10708 transitions. [2022-11-18 20:07:40,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:07:40,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 49 states and 10708 transitions. [2022-11-18 20:07:40,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 50 states, 49 states have (on average 218.53061224489795) internal successors, (10708), 49 states have internal predecessors, (10708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:40,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 50 states, 50 states have (on average 315.0) internal successors, (15750), 50 states have internal predecessors, (15750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:40,687 INFO L81 ComplementDD]: Finished complementDD. Result has 50 states, 50 states have (on average 315.0) internal successors, (15750), 50 states have internal predecessors, (15750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:40,687 INFO L175 Difference]: Start difference. First operand has 311 places, 309 transitions, 1222 flow. Second operand 49 states and 10708 transitions. [2022-11-18 20:07:40,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 1028 transitions, 6951 flow [2022-11-18 20:07:40,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 1028 transitions, 6637 flow, removed 153 selfloop flow, removed 7 redundant places. [2022-11-18 20:07:40,949 INFO L231 Difference]: Finished difference. Result has 379 places, 362 transitions, 2181 flow [2022-11-18 20:07:40,950 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=1081, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=49, PETRI_FLOW=2181, PETRI_PLACES=379, PETRI_TRANSITIONS=362} [2022-11-18 20:07:40,951 INFO L288 CegarLoopForPetriNet]: 254 programPoint places, 125 predicate places. [2022-11-18 20:07:40,951 INFO L495 AbstractCegarLoop]: Abstraction has has 379 places, 362 transitions, 2181 flow [2022-11-18 20:07:40,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 208.0) internal successors, (6032), 29 states have internal predecessors, (6032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:40,953 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:07:40,953 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:07:40,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:07:41,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-18 20:07:41,160 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-18 20:07:41,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:41,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1536776322, now seen corresponding path program 2 times [2022-11-18 20:07:41,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:41,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637545839] [2022-11-18 20:07:41,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:41,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:41,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:42,196 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:07:42,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:07:42,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637545839] [2022-11-18 20:07:42,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637545839] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:07:42,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797863844] [2022-11-18 20:07:42,196 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:07:42,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:07:42,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:07:42,199 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:07:42,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:07:42,456 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:07:42,456 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:07:42,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 20:07:42,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:07:43,150 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-18 20:07:43,150 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:07:43,521 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-18 20:07:43,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797863844] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:07:43,521 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:07:43,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 11] total 31 [2022-11-18 20:07:43,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930110367] [2022-11-18 20:07:43,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:07:43,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-11-18 20:07:43,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:07:43,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-11-18 20:07:43,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=839, Unknown=0, NotChecked=0, Total=930 [2022-11-18 20:07:43,531 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 315 [2022-11-18 20:07:43,535 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 362 transitions, 2181 flow. Second operand has 31 states, 31 states have (on average 207.7741935483871) internal successors, (6441), 31 states have internal predecessors, (6441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:43,536 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:07:43,536 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 315 [2022-11-18 20:07:43,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:07:54,885 INFO L130 PetriNetUnfolder]: 13682/31654 cut-off events. [2022-11-18 20:07:54,885 INFO L131 PetriNetUnfolder]: For 161138/161150 co-relation queries the response was YES. [2022-11-18 20:07:55,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101926 conditions, 31654 events. 13682/31654 cut-off events. For 161138/161150 co-relation queries the response was YES. Maximal size of possible extension queue 1010. Compared 329167 event pairs, 1840 based on Foata normal form. 156/28065 useless extension candidates. Maximal degree in co-relation 101857. Up to 8008 conditions per place. [2022-11-18 20:07:55,437 INFO L137 encePairwiseOnDemand]: 290/315 looper letters, 289 selfloop transitions, 95 changer transitions 248/791 dead transitions. [2022-11-18 20:07:55,437 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 791 transitions, 6322 flow [2022-11-18 20:07:55,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-18 20:07:55,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-11-18 20:07:55,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 8216 transitions. [2022-11-18 20:07:55,452 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6863826232247285 [2022-11-18 20:07:55,453 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 8216 transitions. [2022-11-18 20:07:55,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 8216 transitions. [2022-11-18 20:07:55,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:07:55,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 8216 transitions. [2022-11-18 20:07:55,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 216.21052631578948) internal successors, (8216), 38 states have internal predecessors, (8216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:55,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 315.0) internal successors, (12285), 39 states have internal predecessors, (12285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:55,498 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 315.0) internal successors, (12285), 39 states have internal predecessors, (12285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:55,499 INFO L175 Difference]: Start difference. First operand has 379 places, 362 transitions, 2181 flow. Second operand 38 states and 8216 transitions. [2022-11-18 20:07:55,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 791 transitions, 6322 flow [2022-11-18 20:07:56,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 791 transitions, 5149 flow, removed 511 selfloop flow, removed 37 redundant places. [2022-11-18 20:07:56,340 INFO L231 Difference]: Finished difference. Result has 369 places, 368 transitions, 2075 flow [2022-11-18 20:07:56,341 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=1642, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=2075, PETRI_PLACES=369, PETRI_TRANSITIONS=368} [2022-11-18 20:07:56,342 INFO L288 CegarLoopForPetriNet]: 254 programPoint places, 115 predicate places. [2022-11-18 20:07:56,342 INFO L495 AbstractCegarLoop]: Abstraction has has 369 places, 368 transitions, 2075 flow [2022-11-18 20:07:56,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 207.7741935483871) internal successors, (6441), 31 states have internal predecessors, (6441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:56,343 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:07:56,343 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:07:56,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:07:56,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 20:07:56,544 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-18 20:07:56,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:56,545 INFO L85 PathProgramCache]: Analyzing trace with hash 2005424925, now seen corresponding path program 1 times [2022-11-18 20:07:56,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:56,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289748865] [2022-11-18 20:07:56,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:56,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:56,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:01,437 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:08:01,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:01,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289748865] [2022-11-18 20:08:01,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289748865] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:08:01,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143410556] [2022-11-18 20:08:01,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:01,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:08:01,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:08:01,439 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:08:01,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358ad12b-3ad0-4f13-8777-ae580302c682/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:08:01,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:01,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 121 conjunts are in the unsatisfiable core [2022-11-18 20:08:01,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:08:02,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-18 20:08:04,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-18 20:08:04,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-18 20:08:04,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-18 20:08:05,167 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-18 20:08:05,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-18 20:08:05,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:08:05,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-18 20:08:06,682 INFO L321 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2022-11-18 20:08:06,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 12 [2022-11-18 20:08:07,909 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:08:07,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:10:30,935 WARN L837 $PredicateComparison]: unable to prove that (or (let ((.cse2 (+ (* c_~n~0 4) c_~x~0.offset)) (.cse1 (+ c_~x~0.offset 4 (* c_~i1~0 4)))) (and (forall ((v_ArrVal_513 (Array Int Int)) (|v_thread4Thread1of1ForFork3_~#t5~0#1.base_26| Int) (v_ArrVal_514 (Array Int Int))) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork3_~#t5~0#1.base_26|)) (forall ((|v_thread4Thread1of1ForFork3_~#t6~0#1.base_26| Int)) (or (forall ((v_ArrVal_515 (Array Int Int)) (v_ArrVal_516 (Array Int Int)) (|v_thread1Thread1of1ForFork1_~#t2~0#1.base_26| Int)) (or (forall ((|v_thread1Thread1of1ForFork1_~#t3~0#1.base_26| Int)) (or (not (< |c_#StackHeapBarrier| |v_thread1Thread1of1ForFork1_~#t3~0#1.base_26|)) (forall ((v_ArrVal_517 (Array Int Int)) (v_ArrVal_518 (Array Int Int))) (let ((.cse0 (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_513) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_514) |v_thread4Thread1of1ForFork3_~#t5~0#1.base_26| v_ArrVal_515) |v_thread4Thread1of1ForFork3_~#t6~0#1.base_26| v_ArrVal_516) |v_thread1Thread1of1ForFork1_~#t2~0#1.base_26| v_ArrVal_517))) (<= (+ c_~s11~0 (select (select .cse0 c_~x~0.base) .cse1) c_~s21~0) (+ c_~s22~0 c_~s12~0 (select (select (store .cse0 |v_thread1Thread1of1ForFork1_~#t3~0#1.base_26| v_ArrVal_518) c_~x~0.base) .cse2))))))) (not (< |c_#StackHeapBarrier| |v_thread1Thread1of1ForFork1_~#t2~0#1.base_26|)))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork3_~#t6~0#1.base_26|)))))) (forall ((v_ArrVal_513 (Array Int Int)) (|v_thread4Thread1of1ForFork3_~#t5~0#1.base_26| Int) (v_ArrVal_514 (Array Int Int))) (or (forall ((|v_thread4Thread1of1ForFork3_~#t6~0#1.base_26| Int)) (or (forall ((v_ArrVal_515 (Array Int Int)) (v_ArrVal_516 (Array Int Int)) (|v_thread1Thread1of1ForFork1_~#t2~0#1.base_26| Int)) (or (not (< |c_#StackHeapBarrier| |v_thread1Thread1of1ForFork1_~#t2~0#1.base_26|)) (forall ((|v_thread1Thread1of1ForFork1_~#t3~0#1.base_26| Int)) (or (forall ((v_ArrVal_517 (Array Int Int)) (v_ArrVal_518 (Array Int Int))) (let ((.cse3 (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_513) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_514) |v_thread4Thread1of1ForFork3_~#t5~0#1.base_26| v_ArrVal_515) |v_thread4Thread1of1ForFork3_~#t6~0#1.base_26| v_ArrVal_516) |v_thread1Thread1of1ForFork1_~#t2~0#1.base_26| v_ArrVal_517))) (<= (+ c_~s22~0 c_~s12~0 (select (select (store .cse3 |v_thread1Thread1of1ForFork1_~#t3~0#1.base_26| v_ArrVal_518) c_~x~0.base) .cse2)) (+ c_~s11~0 (select (select .cse3 c_~x~0.base) .cse1) c_~s21~0)))) (not (< |c_#StackHeapBarrier| |v_thread1Thread1of1ForFork1_~#t3~0#1.base_26|)))))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork3_~#t6~0#1.base_26|)))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork3_~#t5~0#1.base_26|)))))) (not (= c_~n~0 (+ c_~i1~0 1))) (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (not (= (+ c_~i2~0 1) c_~n~0))) is different from false [2022-11-18 20:11:29,346 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:11:29,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 65 [2022-11-18 20:11:29,535 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-18 20:11:29,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 210501622 treesize of output 207880186