./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-match-trans.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_edeb325b-b888-4012-8cd2-d748ac2a4568/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb325b-b888-4012-8cd2-d748ac2a4568/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_edeb325b-b888-4012-8cd2-d748ac2a4568/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb325b-b888-4012-8cd2-d748ac2a4568/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-match-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb325b-b888-4012-8cd2-d748ac2a4568/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_edeb325b-b888-4012-8cd2-d748ac2a4568/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 4221a6bcee4165c3049aa9b16a70613c9e290b9c0a4ff35026a6f2dcff16f9ff --- 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 20:19:02,069 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:19:02,073 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:19:02,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:19:02,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:19:02,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:19:02,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:19:02,116 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:19:02,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:19:02,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:19:02,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:19:02,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:19:02,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:19:02,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:19:02,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:19:02,139 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:19:02,141 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:19:02,142 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:19:02,144 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:19:02,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:19:02,153 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:19:02,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:19:02,155 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:19:02,156 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:19:02,161 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:19:02,162 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:19:02,162 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:19:02,163 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:19:02,163 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:19:02,164 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:19:02,164 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:19:02,165 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:19:02,166 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:19:02,167 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:19:02,168 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:19:02,168 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:19:02,169 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:19:02,169 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:19:02,169 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:19:02,170 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:19:02,175 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:19:02,177 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb325b-b888-4012-8cd2-d748ac2a4568/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 20:19:02,218 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:19:02,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:19:02,219 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:19:02,219 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:19:02,220 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:19:02,220 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:19:02,221 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:19:02,221 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:19:02,221 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:19:02,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:19:02,222 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:19:02,223 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:19:02,223 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:19:02,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:19:02,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:19:02,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:19:02,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:19:02,224 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:19:02,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:19:02,224 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:19:02,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:19:02,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:19:02,224 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:19:02,225 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:19:02,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:19:02,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:19:02,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:19:02,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:19:02,226 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:19:02,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:19:02,227 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:19:02,227 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:19:02,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:19:02,228 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_edeb325b-b888-4012-8cd2-d748ac2a4568/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb325b-b888-4012-8cd2-d748ac2a4568/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4221a6bcee4165c3049aa9b16a70613c9e290b9c0a4ff35026a6f2dcff16f9ff [2022-11-18 20:19:02,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:19:02,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:19:02,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:19:02,570 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:19:02,571 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:19:02,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb325b-b888-4012-8cd2-d748ac2a4568/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/chl-match-trans.wvr.c [2022-11-18 20:19:02,661 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb325b-b888-4012-8cd2-d748ac2a4568/bin/uautomizer-TMbwUNV5ro/data/628ffa606/464fbf89fb1d41bcb1a7ba850000847a/FLAG752807621 [2022-11-18 20:19:03,183 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:19:03,191 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb325b-b888-4012-8cd2-d748ac2a4568/sv-benchmarks/c/weaver/chl-match-trans.wvr.c [2022-11-18 20:19:03,201 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb325b-b888-4012-8cd2-d748ac2a4568/bin/uautomizer-TMbwUNV5ro/data/628ffa606/464fbf89fb1d41bcb1a7ba850000847a/FLAG752807621 [2022-11-18 20:19:03,555 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb325b-b888-4012-8cd2-d748ac2a4568/bin/uautomizer-TMbwUNV5ro/data/628ffa606/464fbf89fb1d41bcb1a7ba850000847a [2022-11-18 20:19:03,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:19:03,560 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:19:03,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:19:03,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:19:03,568 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:19:03,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:19:03" (1/1) ... [2022-11-18 20:19:03,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9e6bd36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:03, skipping insertion in model container [2022-11-18 20:19:03,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:19:03" (1/1) ... [2022-11-18 20:19:03,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:19:03,599 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:19:03,809 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_edeb325b-b888-4012-8cd2-d748ac2a4568/sv-benchmarks/c/weaver/chl-match-trans.wvr.c[2954,2967] [2022-11-18 20:19:03,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:19:03,834 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:19:03,884 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_edeb325b-b888-4012-8cd2-d748ac2a4568/sv-benchmarks/c/weaver/chl-match-trans.wvr.c[2954,2967] [2022-11-18 20:19:03,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:19:03,903 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:19:03,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:03 WrapperNode [2022-11-18 20:19:03,904 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:19:03,905 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:19:03,905 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:19:03,905 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:19:03,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:03" (1/1) ... [2022-11-18 20:19:03,937 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:03" (1/1) ... [2022-11-18 20:19:03,979 INFO L138 Inliner]: procedures = 23, calls = 33, calls flagged for inlining = 11, calls inlined = 21, statements flattened = 202 [2022-11-18 20:19:03,983 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:19:03,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:19:03,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:19:03,984 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:19:03,994 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:03" (1/1) ... [2022-11-18 20:19:03,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:03" (1/1) ... [2022-11-18 20:19:04,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:03" (1/1) ... [2022-11-18 20:19:04,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:03" (1/1) ... [2022-11-18 20:19:04,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:03" (1/1) ... [2022-11-18 20:19:04,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:03" (1/1) ... [2022-11-18 20:19:04,029 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:03" (1/1) ... [2022-11-18 20:19:04,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:03" (1/1) ... [2022-11-18 20:19:04,033 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:19:04,034 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:19:04,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:19:04,035 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:19:04,036 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:03" (1/1) ... [2022-11-18 20:19:04,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:19:04,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb325b-b888-4012-8cd2-d748ac2a4568/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:19:04,068 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb325b-b888-4012-8cd2-d748ac2a4568/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:19:04,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edeb325b-b888-4012-8cd2-d748ac2a4568/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:19:04,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:19:04,126 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 20:19:04,126 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 20:19:04,127 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 20:19:04,127 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 20:19:04,127 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 20:19:04,127 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 20:19:04,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:19:04,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:19:04,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:19:04,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:19:04,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:19:04,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:19:04,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:19:04,132 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 20:19:04,293 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:19:04,296 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:19:04,853 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:19:04,864 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:19:04,864 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:19:04,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:19:04 BoogieIcfgContainer [2022-11-18 20:19:04,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:19:04,870 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:19:04,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:19:04,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:19:04,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:19:03" (1/3) ... [2022-11-18 20:19:04,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ef72c03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:19:04, skipping insertion in model container [2022-11-18 20:19:04,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:03" (2/3) ... [2022-11-18 20:19:04,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ef72c03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:19:04, skipping insertion in model container [2022-11-18 20:19:04,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:19:04" (3/3) ... [2022-11-18 20:19:04,880 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-match-trans.wvr.c [2022-11-18 20:19:04,890 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:19:04,904 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:19:04,904 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:19:04,904 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:19:05,097 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 20:19:05,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 278 places, 281 transitions, 586 flow [2022-11-18 20:19:05,388 INFO L130 PetriNetUnfolder]: 13/278 cut-off events. [2022-11-18 20:19:05,389 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 20:19:05,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 291 conditions, 278 events. 13/278 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 408 event pairs, 0 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 196. Up to 2 conditions per place. [2022-11-18 20:19:05,405 INFO L82 GeneralOperation]: Start removeDead. Operand has 278 places, 281 transitions, 586 flow [2022-11-18 20:19:05,416 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 264 places, 267 transitions, 552 flow [2022-11-18 20:19:05,426 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:19:05,438 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;@5fb12f44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:19:05,439 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-18 20:19:05,526 INFO L130 PetriNetUnfolder]: 13/266 cut-off events. [2022-11-18 20:19:05,526 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 20:19:05,526 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:19:05,527 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:19:05,528 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 1 more)] === [2022-11-18 20:19:05,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:19:05,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1578198430, now seen corresponding path program 1 times [2022-11-18 20:19:05,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:19:05,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947722448] [2022-11-18 20:19:05,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:05,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:19:05,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:11,447 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 20:19:11,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:19:11,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947722448] [2022-11-18 20:19:11,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947722448] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:19:11,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:19:11,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2022-11-18 20:19:11,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193186211] [2022-11-18 20:19:11,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:19:11,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-11-18 20:19:11,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:19:11,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-11-18 20:19:11,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=1723, Unknown=0, NotChecked=0, Total=1806 [2022-11-18 20:19:11,518 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 281 [2022-11-18 20:19:11,531 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 267 transitions, 552 flow. Second operand has 43 states, 43 states have (on average 162.46511627906978) internal successors, (6986), 43 states have internal predecessors, (6986), 0 states have call successors, (0), 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 20:19:11,531 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:19:11,531 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 281 [2022-11-18 20:19:11,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:19:44,887 INFO L130 PetriNetUnfolder]: 36422/80694 cut-off events. [2022-11-18 20:19:44,887 INFO L131 PetriNetUnfolder]: For 2977/2977 co-relation queries the response was YES. [2022-11-18 20:19:45,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139031 conditions, 80694 events. 36422/80694 cut-off events. For 2977/2977 co-relation queries the response was YES. Maximal size of possible extension queue 1107. Compared 869666 event pairs, 1829 based on Foata normal form. 8618/86203 useless extension candidates. Maximal degree in co-relation 138519. Up to 5475 conditions per place. [2022-11-18 20:19:45,464 INFO L137 encePairwiseOnDemand]: 210/281 looper letters, 2234 selfloop transitions, 88 changer transitions 50/2519 dead transitions. [2022-11-18 20:19:45,464 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 2519 transitions, 9974 flow [2022-11-18 20:19:45,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-11-18 20:19:45,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2022-11-18 20:19:45,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 14740 transitions. [2022-11-18 20:19:45,514 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6994068801897984 [2022-11-18 20:19:45,515 INFO L72 ComplementDD]: Start complementDD. Operand 75 states and 14740 transitions. [2022-11-18 20:19:45,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 75 states and 14740 transitions. [2022-11-18 20:19:45,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:19:45,531 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 75 states and 14740 transitions. [2022-11-18 20:19:45,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 76 states, 75 states have (on average 196.53333333333333) internal successors, (14740), 75 states have internal predecessors, (14740), 0 states have call successors, (0), 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 20:19:45,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 76 states, 76 states have (on average 281.0) internal successors, (21356), 76 states have internal predecessors, (21356), 0 states have call successors, (0), 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 20:19:45,635 INFO L81 ComplementDD]: Finished complementDD. Result has 76 states, 76 states have (on average 281.0) internal successors, (21356), 76 states have internal predecessors, (21356), 0 states have call successors, (0), 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 20:19:45,637 INFO L175 Difference]: Start difference. First operand has 264 places, 267 transitions, 552 flow. Second operand 75 states and 14740 transitions. [2022-11-18 20:19:45,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 2519 transitions, 9974 flow [2022-11-18 20:19:45,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 2519 transitions, 9846 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-18 20:19:45,720 INFO L231 Difference]: Finished difference. Result has 386 places, 321 transitions, 1072 flow [2022-11-18 20:19:45,723 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=75, PETRI_FLOW=1072, PETRI_PLACES=386, PETRI_TRANSITIONS=321} [2022-11-18 20:19:45,728 INFO L288 CegarLoopForPetriNet]: 264 programPoint places, 122 predicate places. [2022-11-18 20:19:45,729 INFO L495 AbstractCegarLoop]: Abstraction has has 386 places, 321 transitions, 1072 flow [2022-11-18 20:19:45,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 162.46511627906978) internal successors, (6986), 43 states have internal predecessors, (6986), 0 states have call successors, (0), 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 20:19:45,732 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:19:45,733 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:19:45,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:19:45,734 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 1 more)] === [2022-11-18 20:19:45,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:19:45,736 INFO L85 PathProgramCache]: Analyzing trace with hash 592791826, now seen corresponding path program 2 times [2022-11-18 20:19:45,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:19:45,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060721587] [2022-11-18 20:19:45,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:45,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:19:45,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:51,547 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 20:19:51,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:19:51,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060721587] [2022-11-18 20:19:51,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060721587] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:19:51,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:19:51,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2022-11-18 20:19:51,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946324969] [2022-11-18 20:19:51,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:19:51,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-11-18 20:19:51,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:19:51,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-11-18 20:19:51,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=1723, Unknown=0, NotChecked=0, Total=1806 [2022-11-18 20:19:51,564 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 281 [2022-11-18 20:19:51,581 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 321 transitions, 1072 flow. Second operand has 43 states, 43 states have (on average 162.46511627906978) internal successors, (6986), 43 states have internal predecessors, (6986), 0 states have call successors, (0), 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 20:19:51,581 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:19:51,581 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 281 [2022-11-18 20:19:51,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand