./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4ae15-0f56-4330-a836-b51142a73258/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4ae15-0f56-4330-a836-b51142a73258/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_fdd4ae15-0f56-4330-a836-b51142a73258/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4ae15-0f56-4330-a836-b51142a73258/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4ae15-0f56-4330-a836-b51142a73258/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_fdd4ae15-0f56-4330-a836-b51142a73258/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 c7095f70ba7104a12a93da2a0b557c5b5c6880d23caa33c7c2fd19334f4cb537 --- 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 20:01:00,711 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:01:00,713 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:01:00,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:01:00,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:01:00,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:01:00,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:01:00,740 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:01:00,742 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:01:00,743 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:01:00,744 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:01:00,745 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:01:00,745 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:01:00,746 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:01:00,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:01:00,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:01:00,750 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:01:00,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:01:00,753 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:01:00,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:01:00,757 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:01:00,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:01:00,760 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:01:00,761 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:01:00,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:01:00,765 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:01:00,765 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:01:00,767 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:01:00,767 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:01:00,768 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:01:00,769 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:01:00,769 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:01:00,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:01:00,771 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:01:00,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:01:00,773 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:01:00,774 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:01:00,774 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:01:00,775 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:01:00,776 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:01:00,777 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:01:00,777 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4ae15-0f56-4330-a836-b51142a73258/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 20:01:00,801 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:01:00,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:01:00,802 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:01:00,802 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:01:00,803 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:01:00,803 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:01:00,804 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:01:00,804 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:01:00,804 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:01:00,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:01:00,805 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:01:00,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:01:00,806 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:01:00,806 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:01:00,806 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:01:00,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:01:00,807 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:01:00,807 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:01:00,807 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:01:00,808 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:01:00,808 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:01:00,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:01:00,808 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:01:00,809 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:01:00,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:01:00,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:01:00,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:01:00,810 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:01:00,810 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:01:00,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:01:00,811 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:01:00,811 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:01:00,811 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:01:00,811 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_fdd4ae15-0f56-4330-a836-b51142a73258/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4ae15-0f56-4330-a836-b51142a73258/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7095f70ba7104a12a93da2a0b557c5b5c6880d23caa33c7c2fd19334f4cb537 [2022-11-18 20:01:01,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:01:01,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:01:01,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:01:01,104 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:01:01,105 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:01:01,106 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4ae15-0f56-4330-a836-b51142a73258/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c [2022-11-18 20:01:01,192 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4ae15-0f56-4330-a836-b51142a73258/bin/uautomizer-TMbwUNV5ro/data/a3d882bd4/0530622b2dde41dfbc6d8679691782fe/FLAG9dee225c9 [2022-11-18 20:01:01,748 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:01:01,749 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4ae15-0f56-4330-a836-b51142a73258/sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c [2022-11-18 20:01:01,767 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4ae15-0f56-4330-a836-b51142a73258/bin/uautomizer-TMbwUNV5ro/data/a3d882bd4/0530622b2dde41dfbc6d8679691782fe/FLAG9dee225c9 [2022-11-18 20:01:02,067 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4ae15-0f56-4330-a836-b51142a73258/bin/uautomizer-TMbwUNV5ro/data/a3d882bd4/0530622b2dde41dfbc6d8679691782fe [2022-11-18 20:01:02,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:01:02,072 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:01:02,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:01:02,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:01:02,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:01:02,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:01:02" (1/1) ... [2022-11-18 20:01:02,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19f94656 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:01:02, skipping insertion in model container [2022-11-18 20:01:02,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:01:02" (1/1) ... [2022-11-18 20:01:02,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:01:02,135 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:01:02,391 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_fdd4ae15-0f56-4330-a836-b51142a73258/sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c[4400,4413] [2022-11-18 20:01:02,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:01:02,411 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:01:02,445 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_fdd4ae15-0f56-4330-a836-b51142a73258/sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c[4400,4413] [2022-11-18 20:01:02,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:01:02,464 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:01:02,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:01:02 WrapperNode [2022-11-18 20:01:02,465 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:01:02,467 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:01:02,467 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:01:02,467 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:01:02,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:01:02" (1/1) ... [2022-11-18 20:01:02,488 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:01:02" (1/1) ... [2022-11-18 20:01:02,519 INFO L138 Inliner]: procedures = 25, calls = 100, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 278 [2022-11-18 20:01:02,519 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:01:02,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:01:02,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:01:02,521 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:01:02,531 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:01:02" (1/1) ... [2022-11-18 20:01:02,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:01:02" (1/1) ... [2022-11-18 20:01:02,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:01:02" (1/1) ... [2022-11-18 20:01:02,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:01:02" (1/1) ... [2022-11-18 20:01:02,544 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:01:02" (1/1) ... [2022-11-18 20:01:02,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:01:02" (1/1) ... [2022-11-18 20:01:02,550 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:01:02" (1/1) ... [2022-11-18 20:01:02,551 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:01:02" (1/1) ... [2022-11-18 20:01:02,555 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:01:02,556 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:01:02,556 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:01:02,556 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:01:02,557 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:01:02" (1/1) ... [2022-11-18 20:01:02,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:01:02,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4ae15-0f56-4330-a836-b51142a73258/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:01:02,607 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4ae15-0f56-4330-a836-b51142a73258/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:01:02,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4ae15-0f56-4330-a836-b51142a73258/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:01:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:01:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:01:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:01:02,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:01:02,661 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 20:01:02,662 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 20:01:02,662 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 20:01:02,668 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 20:01:02,668 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 20:01:02,669 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 20:01:02,669 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-18 20:01:02,669 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-18 20:01:02,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:01:02,669 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-18 20:01:02,670 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-18 20:01:02,670 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-11-18 20:01:02,670 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-11-18 20:01:02,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:01:02,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:01:02,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:01:02,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:01:02,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:01:02,674 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 20:01:02,831 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:01:02,833 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:01:03,307 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:01:03,458 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:01:03,465 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:01:03,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:01:03 BoogieIcfgContainer [2022-11-18 20:01:03,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:01:03,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:01:03,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:01:03,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:01:03,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:01:02" (1/3) ... [2022-11-18 20:01:03,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac99350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:01:03, skipping insertion in model container [2022-11-18 20:01:03,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:01:02" (2/3) ... [2022-11-18 20:01:03,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac99350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:01:03, skipping insertion in model container [2022-11-18 20:01:03,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:01:03" (3/3) ... [2022-11-18 20:01:03,484 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-6.wvr.c [2022-11-18 20:01:03,499 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:01:03,511 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:01:03,512 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:01:03,512 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:01:03,692 INFO L144 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2022-11-18 20:01:03,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 205 places, 188 transitions, 424 flow [2022-11-18 20:01:03,896 INFO L130 PetriNetUnfolder]: 2/182 cut-off events. [2022-11-18 20:01:03,896 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-18 20:01:03,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 182 events. 2/182 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 80 event pairs, 0 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 139. Up to 2 conditions per place. [2022-11-18 20:01:03,903 INFO L82 GeneralOperation]: Start removeDead. Operand has 205 places, 188 transitions, 424 flow [2022-11-18 20:01:03,915 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 182 places, 165 transitions, 366 flow [2022-11-18 20:01:03,937 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:01:03,946 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;@26af720b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:01:03,946 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 20:01:04,020 INFO L130 PetriNetUnfolder]: 2/164 cut-off events. [2022-11-18 20:01:04,021 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-18 20:01:04,021 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:01:04,022 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] [2022-11-18 20:01:04,023 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:01:04,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:01:04,028 INFO L85 PathProgramCache]: Analyzing trace with hash 249938853, now seen corresponding path program 1 times [2022-11-18 20:01:04,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:01:04,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93946249] [2022-11-18 20:01:04,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:01:04,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:01:04,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:07,848 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 20:01:07,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:01:07,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93946249] [2022-11-18 20:01:07,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93946249] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:01:07,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:01:07,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-18 20:01:07,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253901096] [2022-11-18 20:01:07,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:01:07,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 20:01:07,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:01:07,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 20:01:07,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:01:07,932 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 188 [2022-11-18 20:01:07,946 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 165 transitions, 366 flow. Second operand has 13 states, 13 states have (on average 132.23076923076923) internal successors, (1719), 13 states have internal predecessors, (1719), 0 states have call successors, (0), 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 20:01:07,946 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:01:07,947 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 188 [2022-11-18 20:01:07,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:01:47,341 INFO L130 PetriNetUnfolder]: 185942/279317 cut-off events. [2022-11-18 20:01:47,342 INFO L131 PetriNetUnfolder]: For 36645/36645 co-relation queries the response was YES. [2022-11-18 20:01:48,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 540059 conditions, 279317 events. 185942/279317 cut-off events. For 36645/36645 co-relation queries the response was YES. Maximal size of possible extension queue 9695. Compared 2510140 event pairs, 59352 based on Foata normal form. 4/276432 useless extension candidates. Maximal degree in co-relation 467067. Up to 77079 conditions per place. [2022-11-18 20:01:49,755 INFO L137 encePairwiseOnDemand]: 160/188 looper letters, 142 selfloop transitions, 33 changer transitions 27/308 dead transitions. [2022-11-18 20:01:49,756 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 308 transitions, 1152 flow [2022-11-18 20:01:49,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-18 20:01:49,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-18 20:01:49,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2256 transitions. [2022-11-18 20:01:49,787 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.75 [2022-11-18 20:01:49,788 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2256 transitions. [2022-11-18 20:01:49,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2256 transitions. [2022-11-18 20:01:49,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:01:49,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2256 transitions. [2022-11-18 20:01:49,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 141.0) internal successors, (2256), 16 states have internal predecessors, (2256), 0 states have call successors, (0), 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 20:01:49,826 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 188.0) internal successors, (3196), 17 states have internal predecessors, (3196), 0 states have call successors, (0), 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 20:01:49,829 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 188.0) internal successors, (3196), 17 states have internal predecessors, (3196), 0 states have call successors, (0), 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 20:01:49,831 INFO L175 Difference]: Start difference. First operand has 182 places, 165 transitions, 366 flow. Second operand 16 states and 2256 transitions. [2022-11-18 20:01:49,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 308 transitions, 1152 flow [2022-11-18 20:01:53,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 308 transitions, 1064 flow, removed 0 selfloop flow, removed 12 redundant places. [2022-11-18 20:01:53,431 INFO L231 Difference]: Finished difference. Result has 195 places, 186 transitions, 560 flow [2022-11-18 20:01:53,434 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=560, PETRI_PLACES=195, PETRI_TRANSITIONS=186} [2022-11-18 20:01:53,438 INFO L288 CegarLoopForPetriNet]: 182 programPoint places, 13 predicate places. [2022-11-18 20:01:53,438 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 186 transitions, 560 flow [2022-11-18 20:01:53,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 132.23076923076923) internal successors, (1719), 13 states have internal predecessors, (1719), 0 states have call successors, (0), 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 20:01:53,440 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:01:53,441 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] [2022-11-18 20:01:53,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:01:53,442 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 20:01:53,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:01:53,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1123197165, now seen corresponding path program 2 times [2022-11-18 20:01:53,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:01:53,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373383798] [2022-11-18 20:01:53,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:01:53,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:01:53,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:01:53,951 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 20:01:53,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:01:53,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373383798] [2022-11-18 20:01:53,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373383798] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:01:53,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:01:53,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:01:53,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307631916] [2022-11-18 20:01:53,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:01:53,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:01:53,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:01:53,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:01:53,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:01:53,970 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 188 [2022-11-18 20:01:53,971 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 186 transitions, 560 flow. Second operand has 7 states, 7 states have (on average 145.28571428571428) internal successors, (1017), 7 states have internal predecessors, (1017), 0 states have call successors, (0), 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 20:01:53,972 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:01:53,972 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 188 [2022-11-18 20:01:53,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand