./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '55711f117aca8cc6da45707674eed41f8615ce4fb09ace088988b9afc0dc0851'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --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 55711f117aca8cc6da45707674eed41f8615ce4fb09ace088988b9afc0dc0851 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 11:14:43,323 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 11:14:43,399 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 11:14:43,403 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 11:14:43,404 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 11:14:43,426 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 11:14:43,428 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 11:14:43,429 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 11:14:43,429 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 11:14:43,429 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 11:14:43,429 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 11:14:43,430 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 11:14:43,430 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 11:14:43,430 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 11:14:43,430 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 11:14:43,431 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 11:14:43,431 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 11:14:43,431 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 11:14:43,431 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 11:14:43,431 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 11:14:43,431 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 11:14:43,431 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 11:14:43,432 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 11:14:43,432 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 11:14:43,432 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 11:14:43,432 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 11:14:43,432 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 11:14:43,432 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 11:14:43,432 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 11:14:43,432 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 11:14:43,432 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 11:14:43,432 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 11:14:43,432 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 11:14:43,432 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 11:14:43,432 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 11:14:43,432 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 11:14:43,432 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 11:14:43,432 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 11:14:43,433 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 11:14:43,433 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 11:14:43,433 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 11:14:43,433 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 11:14:43,433 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> 55711f117aca8cc6da45707674eed41f8615ce4fb09ace088988b9afc0dc0851 [2024-11-07 11:14:43,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 11:14:43,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 11:14:43,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 11:14:43,643 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 11:14:43,643 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 11:14:43,644 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-07 11:14:44,772 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 11:14:45,080 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 11:14:45,087 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-07 11:14:45,100 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6ac756ec3/3eaa265a24984f25b0bd73416fa51e9b/FLAG55f937ff8 [2024-11-07 11:14:45,363 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6ac756ec3/3eaa265a24984f25b0bd73416fa51e9b [2024-11-07 11:14:45,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 11:14:45,366 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 11:14:45,369 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 11:14:45,369 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 11:14:45,373 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 11:14:45,374 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:14:45" (1/1) ... [2024-11-07 11:14:45,376 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d5380fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:14:45, skipping insertion in model container [2024-11-07 11:14:45,377 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:14:45" (1/1) ... [2024-11-07 11:14:45,416 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 11:14:45,548 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-11-07 11:14:45,689 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 11:14:45,700 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 11:14:45,708 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-11-07 11:14:45,732 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 11:14:45,761 INFO L204 MainTranslator]: Completed translation [2024-11-07 11:14:45,762 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:14:45 WrapperNode [2024-11-07 11:14:45,762 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 11:14:45,763 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 11:14:45,764 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 11:14:45,764 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 11:14:45,768 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:14:45" (1/1) ... [2024-11-07 11:14:45,779 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:14:45" (1/1) ... [2024-11-07 11:14:45,794 INFO L138 Inliner]: procedures = 176, calls = 46, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2024-11-07 11:14:45,795 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 11:14:45,795 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 11:14:45,796 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 11:14:45,796 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 11:14:45,800 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:14:45" (1/1) ... [2024-11-07 11:14:45,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:14:45" (1/1) ... [2024-11-07 11:14:45,806 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:14:45" (1/1) ... [2024-11-07 11:14:45,824 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-07 11:14:45,828 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:14:45" (1/1) ... [2024-11-07 11:14:45,828 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:14:45" (1/1) ... [2024-11-07 11:14:45,836 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:14:45" (1/1) ... [2024-11-07 11:14:45,838 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:14:45" (1/1) ... [2024-11-07 11:14:45,840 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:14:45" (1/1) ... [2024-11-07 11:14:45,841 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:14:45" (1/1) ... [2024-11-07 11:14:45,842 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 11:14:45,843 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 11:14:45,843 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 11:14:45,843 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 11:14:45,844 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:14:45" (1/1) ... [2024-11-07 11:14:45,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 11:14:45,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 11:14:45,876 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 11:14:45,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 11:14:45,905 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-07 11:14:45,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 11:14:45,907 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-07 11:14:45,907 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-07 11:14:45,907 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-07 11:14:45,907 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-07 11:14:45,907 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-07 11:14:45,907 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-07 11:14:45,907 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-07 11:14:45,907 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-07 11:14:45,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 11:14:45,908 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-07 11:14:45,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 11:14:45,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 11:14:45,909 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-07 11:14:46,006 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 11:14:46,008 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 11:14:46,146 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 11:14:46,146 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 11:14:46,217 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 11:14:46,218 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 11:14:46,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:14:46 BoogieIcfgContainer [2024-11-07 11:14:46,218 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 11:14:46,219 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 11:14:46,220 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 11:14:46,223 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 11:14:46,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:14:45" (1/3) ... [2024-11-07 11:14:46,224 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@451b668d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:14:46, skipping insertion in model container [2024-11-07 11:14:46,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:14:45" (2/3) ... [2024-11-07 11:14:46,225 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@451b668d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:14:46, skipping insertion in model container [2024-11-07 11:14:46,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:14:46" (3/3) ... [2024-11-07 11:14:46,226 INFO L112 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-07 11:14:46,236 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 11:14:46,237 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 11:14:46,237 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 11:14:46,278 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-07 11:14:46,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 45 transitions, 106 flow [2024-11-07 11:14:46,334 INFO L124 PetriNetUnfolderBase]: 1/41 cut-off events. [2024-11-07 11:14:46,337 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 11:14:46,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 41 events. 1/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 79 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2024-11-07 11:14:46,341 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 45 transitions, 106 flow [2024-11-07 11:14:46,343 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 38 transitions, 88 flow [2024-11-07 11:14:46,354 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 11:14:46,367 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@205ff53e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 11:14:46,367 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-07 11:14:46,385 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 11:14:46,387 INFO L124 PetriNetUnfolderBase]: 0/37 cut-off events. [2024-11-07 11:14:46,387 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 11:14:46,388 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:14:46,388 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:14:46,389 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 11:14:46,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:14:46,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1535385628, now seen corresponding path program 1 times [2024-11-07 11:14:46,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:14:46,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277013565] [2024-11-07 11:14:46,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:14:46,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:14:46,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:14:46,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:14:46,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:14:46,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277013565] [2024-11-07 11:14:46,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277013565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:14:46,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:14:46,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 11:14:46,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235965289] [2024-11-07 11:14:46,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:14:46,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:14:46,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:14:46,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:14:46,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:14:46,871 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 45 [2024-11-07 11:14:46,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 38 transitions, 88 flow. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:14:46,874 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:14:46,874 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 45 [2024-11-07 11:14:46,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:14:47,863 INFO L124 PetriNetUnfolderBase]: 5226/8789 cut-off events. [2024-11-07 11:14:47,863 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2024-11-07 11:14:47,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16357 conditions, 8789 events. 5226/8789 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 566. Compared 66880 event pairs, 1643 based on Foata normal form. 244/8848 useless extension candidates. Maximal degree in co-relation 16345. Up to 3470 conditions per place. [2024-11-07 11:14:47,989 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 36 selfloop transitions, 7 changer transitions 43/101 dead transitions. [2024-11-07 11:14:47,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 101 transitions, 395 flow [2024-11-07 11:14:47,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 11:14:47,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 11:14:47,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 221 transitions. [2024-11-07 11:14:48,001 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7015873015873015 [2024-11-07 11:14:48,003 INFO L175 Difference]: Start difference. First operand has 51 places, 38 transitions, 88 flow. Second operand 7 states and 221 transitions. [2024-11-07 11:14:48,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 101 transitions, 395 flow [2024-11-07 11:14:48,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 101 transitions, 388 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-07 11:14:48,018 INFO L231 Difference]: Finished difference. Result has 59 places, 44 transitions, 170 flow [2024-11-07 11:14:48,020 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=170, PETRI_PLACES=59, PETRI_TRANSITIONS=44} [2024-11-07 11:14:48,023 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 8 predicate places. [2024-11-07 11:14:48,025 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 44 transitions, 170 flow [2024-11-07 11:14:48,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:14:48,025 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:14:48,025 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:14:48,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 11:14:48,026 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 11:14:48,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:14:48,026 INFO L85 PathProgramCache]: Analyzing trace with hash -2027653339, now seen corresponding path program 1 times [2024-11-07 11:14:48,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:14:48,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763672469] [2024-11-07 11:14:48,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:14:48,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:14:48,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:14:48,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:14:48,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:14:48,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763672469] [2024-11-07 11:14:48,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763672469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:14:48,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:14:48,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:14:48,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224020360] [2024-11-07 11:14:48,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:14:48,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 11:14:48,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:14:48,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 11:14:48,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 11:14:48,317 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 45 [2024-11-07 11:14:48,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 44 transitions, 170 flow. Second operand has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:14:48,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:14:48,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 45 [2024-11-07 11:14:48,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:14:49,313 INFO L124 PetriNetUnfolderBase]: 4702/8148 cut-off events. [2024-11-07 11:14:49,314 INFO L125 PetriNetUnfolderBase]: For 10285/10293 co-relation queries the response was YES. [2024-11-07 11:14:49,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23292 conditions, 8148 events. 4702/8148 cut-off events. For 10285/10293 co-relation queries the response was YES. Maximal size of possible extension queue 520. Compared 62719 event pairs, 619 based on Foata normal form. 249/8287 useless extension candidates. Maximal degree in co-relation 23276. Up to 2759 conditions per place. [2024-11-07 11:14:49,366 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 45 selfloop transitions, 11 changer transitions 68/139 dead transitions. [2024-11-07 11:14:49,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 139 transitions, 908 flow [2024-11-07 11:14:49,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 11:14:49,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 11:14:49,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 304 transitions. [2024-11-07 11:14:49,373 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6755555555555556 [2024-11-07 11:14:49,373 INFO L175 Difference]: Start difference. First operand has 59 places, 44 transitions, 170 flow. Second operand 10 states and 304 transitions. [2024-11-07 11:14:49,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 139 transitions, 908 flow [2024-11-07 11:14:49,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 139 transitions, 838 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 11:14:49,408 INFO L231 Difference]: Finished difference. Result has 71 places, 52 transitions, 290 flow [2024-11-07 11:14:49,408 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=290, PETRI_PLACES=71, PETRI_TRANSITIONS=52} [2024-11-07 11:14:49,408 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 20 predicate places. [2024-11-07 11:14:49,408 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 52 transitions, 290 flow [2024-11-07 11:14:49,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:14:49,409 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:14:49,409 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:14:49,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 11:14:49,409 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 11:14:49,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:14:49,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1525257915, now seen corresponding path program 1 times [2024-11-07 11:14:49,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:14:49,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570703076] [2024-11-07 11:14:49,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:14:49,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:14:49,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:14:49,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:14:49,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:14:49,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570703076] [2024-11-07 11:14:49,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570703076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:14:49,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:14:49,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:14:49,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538710722] [2024-11-07 11:14:49,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:14:49,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 11:14:49,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:14:49,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 11:14:49,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 11:14:49,696 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 45 [2024-11-07 11:14:49,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 52 transitions, 290 flow. Second operand has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:14:49,696 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:14:49,696 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 45 [2024-11-07 11:14:49,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:14:50,959 INFO L124 PetriNetUnfolderBase]: 4085/7019 cut-off events. [2024-11-07 11:14:50,962 INFO L125 PetriNetUnfolderBase]: For 21673/21703 co-relation queries the response was YES. [2024-11-07 11:14:51,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23517 conditions, 7019 events. 4085/7019 cut-off events. For 21673/21703 co-relation queries the response was YES. Maximal size of possible extension queue 425. Compared 51890 event pairs, 903 based on Foata normal form. 203/7150 useless extension candidates. Maximal degree in co-relation 23492. Up to 2622 conditions per place. [2024-11-07 11:14:51,066 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 57 selfloop transitions, 18 changer transitions 66/156 dead transitions. [2024-11-07 11:14:51,066 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 156 transitions, 1244 flow [2024-11-07 11:14:51,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 11:14:51,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 11:14:51,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 310 transitions. [2024-11-07 11:14:51,071 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6888888888888889 [2024-11-07 11:14:51,071 INFO L175 Difference]: Start difference. First operand has 71 places, 52 transitions, 290 flow. Second operand 10 states and 310 transitions. [2024-11-07 11:14:51,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 156 transitions, 1244 flow [2024-11-07 11:14:51,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 156 transitions, 1212 flow, removed 16 selfloop flow, removed 0 redundant places. [2024-11-07 11:14:51,143 INFO L231 Difference]: Finished difference. Result has 83 places, 64 transitions, 502 flow [2024-11-07 11:14:51,144 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=502, PETRI_PLACES=83, PETRI_TRANSITIONS=64} [2024-11-07 11:14:51,144 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 32 predicate places. [2024-11-07 11:14:51,144 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 64 transitions, 502 flow [2024-11-07 11:14:51,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:14:51,144 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:14:51,144 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:14:51,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 11:14:51,145 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 11:14:51,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:14:51,145 INFO L85 PathProgramCache]: Analyzing trace with hash 419521526, now seen corresponding path program 1 times [2024-11-07 11:14:51,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:14:51,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528976323] [2024-11-07 11:14:51,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:14:51,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:14:51,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:14:51,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:14:51,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:14:51,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528976323] [2024-11-07 11:14:51,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528976323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:14:51,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:14:51,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:14:51,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278349098] [2024-11-07 11:14:51,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:14:51,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 11:14:51,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:14:51,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 11:14:51,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 11:14:51,487 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 45 [2024-11-07 11:14:51,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 64 transitions, 502 flow. Second operand has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:14:51,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:14:51,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 45 [2024-11-07 11:14:51,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:14:52,210 INFO L124 PetriNetUnfolderBase]: 3539/6159 cut-off events. [2024-11-07 11:14:52,210 INFO L125 PetriNetUnfolderBase]: For 28767/28797 co-relation queries the response was YES. [2024-11-07 11:14:52,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23206 conditions, 6159 events. 3539/6159 cut-off events. For 28767/28797 co-relation queries the response was YES. Maximal size of possible extension queue 357. Compared 45317 event pairs, 467 based on Foata normal form. 122/6200 useless extension candidates. Maximal degree in co-relation 23170. Up to 2214 conditions per place. [2024-11-07 11:14:52,244 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 56 selfloop transitions, 21 changer transitions 52/144 dead transitions. [2024-11-07 11:14:52,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 144 transitions, 1356 flow [2024-11-07 11:14:52,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 11:14:52,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 11:14:52,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 292 transitions. [2024-11-07 11:14:52,246 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6488888888888888 [2024-11-07 11:14:52,246 INFO L175 Difference]: Start difference. First operand has 83 places, 64 transitions, 502 flow. Second operand 10 states and 292 transitions. [2024-11-07 11:14:52,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 144 transitions, 1356 flow [2024-11-07 11:14:52,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 144 transitions, 1284 flow, removed 36 selfloop flow, removed 4 redundant places. [2024-11-07 11:14:52,293 INFO L231 Difference]: Finished difference. Result has 91 places, 71 transitions, 660 flow [2024-11-07 11:14:52,293 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=660, PETRI_PLACES=91, PETRI_TRANSITIONS=71} [2024-11-07 11:14:52,294 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 40 predicate places. [2024-11-07 11:14:52,294 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 71 transitions, 660 flow [2024-11-07 11:14:52,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:14:52,294 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:14:52,294 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:14:52,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 11:14:52,294 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 11:14:52,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:14:52,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1833840239, now seen corresponding path program 1 times [2024-11-07 11:14:52,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:14:52,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669370524] [2024-11-07 11:14:52,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:14:52,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:14:52,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:14:52,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:14:52,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:14:52,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669370524] [2024-11-07 11:14:52,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669370524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:14:52,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:14:52,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 11:14:52,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602058423] [2024-11-07 11:14:52,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:14:52,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:14:52,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:14:52,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:14:52,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:14:52,403 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 45 [2024-11-07 11:14:52,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 71 transitions, 660 flow. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:14:52,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:14:52,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 45 [2024-11-07 11:14:52,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:14:53,144 INFO L124 PetriNetUnfolderBase]: 1922/3676 cut-off events. [2024-11-07 11:14:53,144 INFO L125 PetriNetUnfolderBase]: For 17325/17657 co-relation queries the response was YES. [2024-11-07 11:14:53,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13258 conditions, 3676 events. 1922/3676 cut-off events. For 17325/17657 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 27851 event pairs, 836 based on Foata normal form. 182/3540 useless extension candidates. Maximal degree in co-relation 13215. Up to 1866 conditions per place. [2024-11-07 11:14:53,231 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 27 selfloop transitions, 5 changer transitions 21/103 dead transitions. [2024-11-07 11:14:53,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 103 transitions, 912 flow [2024-11-07 11:14:53,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 11:14:53,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 11:14:53,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 218 transitions. [2024-11-07 11:14:53,236 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.692063492063492 [2024-11-07 11:14:53,236 INFO L175 Difference]: Start difference. First operand has 91 places, 71 transitions, 660 flow. Second operand 7 states and 218 transitions. [2024-11-07 11:14:53,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 103 transitions, 912 flow [2024-11-07 11:14:53,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 103 transitions, 871 flow, removed 18 selfloop flow, removed 7 redundant places. [2024-11-07 11:14:53,323 INFO L231 Difference]: Finished difference. Result has 89 places, 71 transitions, 656 flow [2024-11-07 11:14:53,323 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=631, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=656, PETRI_PLACES=89, PETRI_TRANSITIONS=71} [2024-11-07 11:14:53,324 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 38 predicate places. [2024-11-07 11:14:53,324 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 71 transitions, 656 flow [2024-11-07 11:14:53,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:14:53,326 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:14:53,326 INFO L204 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] [2024-11-07 11:14:53,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 11:14:53,326 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 11:14:53,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:14:53,328 INFO L85 PathProgramCache]: Analyzing trace with hash -384186726, now seen corresponding path program 1 times [2024-11-07 11:14:53,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:14:53,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820914809] [2024-11-07 11:14:53,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:14:53,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:14:53,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:14:53,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:14:53,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:14:53,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820914809] [2024-11-07 11:14:53,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820914809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:14:53,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:14:53,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 11:14:53,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907907386] [2024-11-07 11:14:53,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:14:53,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 11:14:53,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:14:53,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 11:14:53,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 11:14:53,521 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 45 [2024-11-07 11:14:53,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 71 transitions, 656 flow. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:14:53,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:14:53,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 45 [2024-11-07 11:14:53,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:14:54,269 INFO L124 PetriNetUnfolderBase]: 3599/6586 cut-off events. [2024-11-07 11:14:54,269 INFO L125 PetriNetUnfolderBase]: For 32471/32471 co-relation queries the response was YES. [2024-11-07 11:14:54,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24709 conditions, 6586 events. 3599/6586 cut-off events. For 32471/32471 co-relation queries the response was YES. Maximal size of possible extension queue 367. Compared 52582 event pairs, 602 based on Foata normal form. 100/6521 useless extension candidates. Maximal degree in co-relation 24666. Up to 2009 conditions per place. [2024-11-07 11:14:54,304 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 55 selfloop transitions, 29 changer transitions 37/136 dead transitions. [2024-11-07 11:14:54,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 136 transitions, 1299 flow [2024-11-07 11:14:54,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 11:14:54,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 11:14:54,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 283 transitions. [2024-11-07 11:14:54,307 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6288888888888889 [2024-11-07 11:14:54,307 INFO L175 Difference]: Start difference. First operand has 89 places, 71 transitions, 656 flow. Second operand 10 states and 283 transitions. [2024-11-07 11:14:54,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 136 transitions, 1299 flow [2024-11-07 11:14:54,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 136 transitions, 1237 flow, removed 25 selfloop flow, removed 10 redundant places. [2024-11-07 11:14:54,440 INFO L231 Difference]: Finished difference. Result has 93 places, 73 transitions, 802 flow [2024-11-07 11:14:54,441 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=628, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=802, PETRI_PLACES=93, PETRI_TRANSITIONS=73} [2024-11-07 11:14:54,442 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 42 predicate places. [2024-11-07 11:14:54,445 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 73 transitions, 802 flow [2024-11-07 11:14:54,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:14:54,445 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:14:54,446 INFO L204 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] [2024-11-07 11:14:54,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 11:14:54,446 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 11:14:54,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:14:54,446 INFO L85 PathProgramCache]: Analyzing trace with hash 198144813, now seen corresponding path program 1 times [2024-11-07 11:14:54,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:14:54,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597675614] [2024-11-07 11:14:54,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:14:54,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:14:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:14:54,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:14:54,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:14:54,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597675614] [2024-11-07 11:14:54,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597675614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:14:54,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:14:54,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 11:14:54,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239117366] [2024-11-07 11:14:54,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:14:54,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 11:14:54,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:14:54,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 11:14:54,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-07 11:14:54,608 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 45 [2024-11-07 11:14:54,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 73 transitions, 802 flow. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 7 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:14:54,609 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:14:54,609 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 45 [2024-11-07 11:14:54,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:14:55,185 INFO L124 PetriNetUnfolderBase]: 4795/8713 cut-off events. [2024-11-07 11:14:55,185 INFO L125 PetriNetUnfolderBase]: For 57995/58036 co-relation queries the response was YES. [2024-11-07 11:14:55,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34429 conditions, 8713 events. 4795/8713 cut-off events. For 57995/58036 co-relation queries the response was YES. Maximal size of possible extension queue 557. Compared 72612 event pairs, 1100 based on Foata normal form. 132/8624 useless extension candidates. Maximal degree in co-relation 34385. Up to 2572 conditions per place. [2024-11-07 11:14:55,237 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 54 selfloop transitions, 20 changer transitions 51/140 dead transitions. [2024-11-07 11:14:55,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 140 transitions, 1732 flow [2024-11-07 11:14:55,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 11:14:55,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 11:14:55,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 213 transitions. [2024-11-07 11:14:55,238 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6761904761904762 [2024-11-07 11:14:55,238 INFO L175 Difference]: Start difference. First operand has 93 places, 73 transitions, 802 flow. Second operand 7 states and 213 transitions. [2024-11-07 11:14:55,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 140 transitions, 1732 flow [2024-11-07 11:14:55,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 140 transitions, 1672 flow, removed 30 selfloop flow, removed 5 redundant places. [2024-11-07 11:14:55,498 INFO L231 Difference]: Finished difference. Result has 92 places, 62 transitions, 679 flow [2024-11-07 11:14:55,498 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=778, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=679, PETRI_PLACES=92, PETRI_TRANSITIONS=62} [2024-11-07 11:14:55,500 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 41 predicate places. [2024-11-07 11:14:55,500 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 62 transitions, 679 flow [2024-11-07 11:14:55,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 7 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:14:55,500 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:14:55,501 INFO L204 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] [2024-11-07 11:14:55,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 11:14:55,501 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 11:14:55,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:14:55,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1954474989, now seen corresponding path program 2 times [2024-11-07 11:14:55,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:14:55,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736415879] [2024-11-07 11:14:55,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:14:55,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:14:55,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:14:55,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:14:55,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:14:55,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736415879] [2024-11-07 11:14:55,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736415879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:14:55,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:14:55,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 11:14:55,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050790897] [2024-11-07 11:14:55,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:14:55,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 11:14:55,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:14:55,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 11:14:55,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 11:14:55,600 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 45 [2024-11-07 11:14:55,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 62 transitions, 679 flow. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:14:55,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:14:55,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 45 [2024-11-07 11:14:55,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:14:56,006 INFO L124 PetriNetUnfolderBase]: 2881/5344 cut-off events. [2024-11-07 11:14:56,006 INFO L125 PetriNetUnfolderBase]: For 31916/31916 co-relation queries the response was YES. [2024-11-07 11:14:56,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19893 conditions, 5344 events. 2881/5344 cut-off events. For 31916/31916 co-relation queries the response was YES. Maximal size of possible extension queue 362. Compared 42646 event pairs, 687 based on Foata normal form. 116/5337 useless extension candidates. Maximal degree in co-relation 19848. Up to 1609 conditions per place. [2024-11-07 11:14:56,036 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 46 selfloop transitions, 21 changer transitions 39/121 dead transitions. [2024-11-07 11:14:56,036 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 121 transitions, 1262 flow [2024-11-07 11:14:56,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 11:14:56,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 11:14:56,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 281 transitions. [2024-11-07 11:14:56,037 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6244444444444445 [2024-11-07 11:14:56,038 INFO L175 Difference]: Start difference. First operand has 92 places, 62 transitions, 679 flow. Second operand 10 states and 281 transitions. [2024-11-07 11:14:56,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 121 transitions, 1262 flow [2024-11-07 11:14:56,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 121 transitions, 1124 flow, removed 23 selfloop flow, removed 10 redundant places. [2024-11-07 11:14:56,066 INFO L231 Difference]: Finished difference. Result has 96 places, 60 transitions, 621 flow [2024-11-07 11:14:56,066 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=592, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=621, PETRI_PLACES=96, PETRI_TRANSITIONS=60} [2024-11-07 11:14:56,066 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 45 predicate places. [2024-11-07 11:14:56,066 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 60 transitions, 621 flow [2024-11-07 11:14:56,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:14:56,067 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:14:56,067 INFO L204 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] [2024-11-07 11:14:56,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 11:14:56,067 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 11:14:56,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:14:56,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1274937684, now seen corresponding path program 1 times [2024-11-07 11:14:56,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:14:56,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326709705] [2024-11-07 11:14:56,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:14:56,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:14:56,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:14:56,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:14:56,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:14:56,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326709705] [2024-11-07 11:14:56,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326709705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:14:56,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:14:56,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 11:14:56,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694229299] [2024-11-07 11:14:56,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:14:56,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 11:14:56,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:14:56,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 11:14:56,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 11:14:56,130 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 45 [2024-11-07 11:14:56,131 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 60 transitions, 621 flow. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:14:56,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:14:56,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 45 [2024-11-07 11:14:56,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:14:56,825 INFO L124 PetriNetUnfolderBase]: 6831/11392 cut-off events. [2024-11-07 11:14:56,825 INFO L125 PetriNetUnfolderBase]: For 21491/21818 co-relation queries the response was YES. [2024-11-07 11:14:56,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27944 conditions, 11392 events. 6831/11392 cut-off events. For 21491/21818 co-relation queries the response was YES. Maximal size of possible extension queue 838. Compared 90914 event pairs, 2060 based on Foata normal form. 504/11440 useless extension candidates. Maximal degree in co-relation 27899. Up to 5207 conditions per place. [2024-11-07 11:14:56,888 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 32 selfloop transitions, 6 changer transitions 0/78 dead transitions. [2024-11-07 11:14:56,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 78 transitions, 737 flow [2024-11-07 11:14:56,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 11:14:56,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 11:14:56,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 132 transitions. [2024-11-07 11:14:56,894 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2024-11-07 11:14:56,894 INFO L175 Difference]: Start difference. First operand has 96 places, 60 transitions, 621 flow. Second operand 4 states and 132 transitions. [2024-11-07 11:14:56,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 78 transitions, 737 flow [2024-11-07 11:14:56,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 78 transitions, 711 flow, removed 13 selfloop flow, removed 7 redundant places. [2024-11-07 11:14:56,969 INFO L231 Difference]: Finished difference. Result has 88 places, 65 transitions, 641 flow [2024-11-07 11:14:56,970 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=595, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=641, PETRI_PLACES=88, PETRI_TRANSITIONS=65} [2024-11-07 11:14:56,970 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 37 predicate places. [2024-11-07 11:14:56,970 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 65 transitions, 641 flow [2024-11-07 11:14:56,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:14:56,971 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:14:56,971 INFO L204 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] [2024-11-07 11:14:56,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 11:14:56,971 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 11:14:56,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:14:56,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1856788295, now seen corresponding path program 1 times [2024-11-07 11:14:56,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:14:56,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661324633] [2024-11-07 11:14:56,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:14:56,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:14:56,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:14:57,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:14:57,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:14:57,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661324633] [2024-11-07 11:14:57,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661324633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:14:57,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:14:57,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 11:14:57,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546330970] [2024-11-07 11:14:57,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:14:57,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:14:57,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:14:57,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:14:57,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:14:57,091 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 45 [2024-11-07 11:14:57,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 65 transitions, 641 flow. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:14:57,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:14:57,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 45 [2024-11-07 11:14:57,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:14:58,057 INFO L124 PetriNetUnfolderBase]: 6803/11284 cut-off events. [2024-11-07 11:14:58,057 INFO L125 PetriNetUnfolderBase]: For 11115/14142 co-relation queries the response was YES. [2024-11-07 11:14:58,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29856 conditions, 11284 events. 6803/11284 cut-off events. For 11115/14142 co-relation queries the response was YES. Maximal size of possible extension queue 914. Compared 87483 event pairs, 1080 based on Foata normal form. 546/11416 useless extension candidates. Maximal degree in co-relation 29814. Up to 5516 conditions per place. [2024-11-07 11:14:58,103 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 40 selfloop transitions, 10 changer transitions 0/90 dead transitions. [2024-11-07 11:14:58,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 90 transitions, 816 flow [2024-11-07 11:14:58,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 11:14:58,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 11:14:58,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 167 transitions. [2024-11-07 11:14:58,105 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7422222222222222 [2024-11-07 11:14:58,105 INFO L175 Difference]: Start difference. First operand has 88 places, 65 transitions, 641 flow. Second operand 5 states and 167 transitions. [2024-11-07 11:14:58,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 90 transitions, 816 flow [2024-11-07 11:14:58,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 90 transitions, 764 flow, removed 14 selfloop flow, removed 5 redundant places. [2024-11-07 11:14:58,118 INFO L231 Difference]: Finished difference. Result has 89 places, 70 transitions, 657 flow [2024-11-07 11:14:58,119 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=590, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=657, PETRI_PLACES=89, PETRI_TRANSITIONS=70} [2024-11-07 11:14:58,121 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 38 predicate places. [2024-11-07 11:14:58,121 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 70 transitions, 657 flow [2024-11-07 11:14:58,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:14:58,122 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:14:58,122 INFO L204 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] [2024-11-07 11:14:58,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 11:14:58,122 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 11:14:58,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:14:58,123 INFO L85 PathProgramCache]: Analyzing trace with hash -439237678, now seen corresponding path program 1 times [2024-11-07 11:14:58,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:14:58,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753393480] [2024-11-07 11:14:58,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:14:58,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:14:58,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:14:58,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:14:58,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:14:58,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753393480] [2024-11-07 11:14:58,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753393480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:14:58,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:14:58,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:14:58,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046235278] [2024-11-07 11:14:58,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:14:58,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 11:14:58,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:14:58,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 11:14:58,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-07 11:14:58,237 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 45 [2024-11-07 11:14:58,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 70 transitions, 657 flow. Second operand has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:14:58,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:14:58,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 45 [2024-11-07 11:14:58,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:14:58,860 INFO L124 PetriNetUnfolderBase]: 6084/9836 cut-off events. [2024-11-07 11:14:58,860 INFO L125 PetriNetUnfolderBase]: For 14754/20340 co-relation queries the response was YES. [2024-11-07 11:14:58,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30332 conditions, 9836 events. 6084/9836 cut-off events. For 14754/20340 co-relation queries the response was YES. Maximal size of possible extension queue 760. Compared 72303 event pairs, 339 based on Foata normal form. 526/10028 useless extension candidates. Maximal degree in co-relation 30291. Up to 4816 conditions per place. [2024-11-07 11:14:58,927 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 48 selfloop transitions, 14 changer transitions 0/102 dead transitions. [2024-11-07 11:14:58,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 102 transitions, 890 flow [2024-11-07 11:14:58,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 11:14:58,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 11:14:58,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 202 transitions. [2024-11-07 11:14:58,928 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7481481481481481 [2024-11-07 11:14:58,928 INFO L175 Difference]: Start difference. First operand has 89 places, 70 transitions, 657 flow. Second operand 6 states and 202 transitions. [2024-11-07 11:14:58,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 102 transitions, 890 flow [2024-11-07 11:14:58,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 102 transitions, 870 flow, removed 6 selfloop flow, removed 2 redundant places. [2024-11-07 11:14:58,940 INFO L231 Difference]: Finished difference. Result has 94 places, 75 transitions, 723 flow [2024-11-07 11:14:58,940 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=723, PETRI_PLACES=94, PETRI_TRANSITIONS=75} [2024-11-07 11:14:58,940 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 43 predicate places. [2024-11-07 11:14:58,941 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 75 transitions, 723 flow [2024-11-07 11:14:58,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:14:58,941 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:14:58,941 INFO L204 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] [2024-11-07 11:14:58,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 11:14:58,941 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 11:14:58,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:14:58,941 INFO L85 PathProgramCache]: Analyzing trace with hash 996294986, now seen corresponding path program 1 times [2024-11-07 11:14:58,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:14:58,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722559471] [2024-11-07 11:14:58,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:14:58,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:14:58,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:14:59,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:14:59,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:14:59,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722559471] [2024-11-07 11:14:59,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722559471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:14:59,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:14:59,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 11:14:59,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160848325] [2024-11-07 11:14:59,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:14:59,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 11:14:59,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:14:59,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 11:14:59,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 11:14:59,071 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 45 [2024-11-07 11:14:59,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 75 transitions, 723 flow. Second operand has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 7 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:14:59,071 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:14:59,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 45 [2024-11-07 11:14:59,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:14:59,993 INFO L124 PetriNetUnfolderBase]: 5484/8580 cut-off events. [2024-11-07 11:14:59,993 INFO L125 PetriNetUnfolderBase]: For 24008/29619 co-relation queries the response was YES. [2024-11-07 11:15:00,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30791 conditions, 8580 events. 5484/8580 cut-off events. For 24008/29619 co-relation queries the response was YES. Maximal size of possible extension queue 745. Compared 59508 event pairs, 203 based on Foata normal form. 381/8643 useless extension candidates. Maximal degree in co-relation 30748. Up to 3616 conditions per place. [2024-11-07 11:15:00,058 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 44 selfloop transitions, 18 changer transitions 16/104 dead transitions. [2024-11-07 11:15:00,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 104 transitions, 924 flow [2024-11-07 11:15:00,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 11:15:00,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 11:15:00,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 227 transitions. [2024-11-07 11:15:00,059 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7206349206349206 [2024-11-07 11:15:00,059 INFO L175 Difference]: Start difference. First operand has 94 places, 75 transitions, 723 flow. Second operand 7 states and 227 transitions. [2024-11-07 11:15:00,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 104 transitions, 924 flow [2024-11-07 11:15:00,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 104 transitions, 868 flow, removed 16 selfloop flow, removed 7 redundant places. [2024-11-07 11:15:00,084 INFO L231 Difference]: Finished difference. Result has 95 places, 62 transitions, 517 flow [2024-11-07 11:15:00,084 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=668, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=517, PETRI_PLACES=95, PETRI_TRANSITIONS=62} [2024-11-07 11:15:00,085 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 44 predicate places. [2024-11-07 11:15:00,085 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 62 transitions, 517 flow [2024-11-07 11:15:00,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 7 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:15:00,085 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:15:00,085 INFO L204 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] [2024-11-07 11:15:00,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 11:15:00,086 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 11:15:00,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:15:00,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1348082285, now seen corresponding path program 1 times [2024-11-07 11:15:00,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:15:00,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130268120] [2024-11-07 11:15:00,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:15:00,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:15:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:15:00,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:15:00,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:15:00,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130268120] [2024-11-07 11:15:00,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130268120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:15:00,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:15:00,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:15:00,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867554252] [2024-11-07 11:15:00,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:15:00,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 11:15:00,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:15:00,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 11:15:00,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 11:15:00,177 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 45 [2024-11-07 11:15:00,177 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 62 transitions, 517 flow. Second operand has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:15:00,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:15:00,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 45 [2024-11-07 11:15:00,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:15:00,376 INFO L124 PetriNetUnfolderBase]: 1130/2168 cut-off events. [2024-11-07 11:15:00,376 INFO L125 PetriNetUnfolderBase]: For 8339/8590 co-relation queries the response was YES. [2024-11-07 11:15:00,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7717 conditions, 2168 events. 1130/2168 cut-off events. For 8339/8590 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 14990 event pairs, 411 based on Foata normal form. 27/1837 useless extension candidates. Maximal degree in co-relation 7676. Up to 1323 conditions per place. [2024-11-07 11:15:00,389 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 0 selfloop transitions, 0 changer transitions 73/73 dead transitions. [2024-11-07 11:15:00,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 73 transitions, 615 flow [2024-11-07 11:15:00,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 11:15:00,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 11:15:00,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 166 transitions. [2024-11-07 11:15:00,390 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6148148148148148 [2024-11-07 11:15:00,390 INFO L175 Difference]: Start difference. First operand has 95 places, 62 transitions, 517 flow. Second operand 6 states and 166 transitions. [2024-11-07 11:15:00,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 73 transitions, 615 flow [2024-11-07 11:15:00,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 73 transitions, 456 flow, removed 19 selfloop flow, removed 19 redundant places. [2024-11-07 11:15:00,402 INFO L231 Difference]: Finished difference. Result has 79 places, 0 transitions, 0 flow [2024-11-07 11:15:00,403 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=79, PETRI_TRANSITIONS=0} [2024-11-07 11:15:00,403 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 28 predicate places. [2024-11-07 11:15:00,403 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 0 transitions, 0 flow [2024-11-07 11:15:00,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:15:00,405 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2024-11-07 11:15:00,406 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2024-11-07 11:15:00,406 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-07 11:15:00,406 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-07 11:15:00,406 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-11-07 11:15:00,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 11:15:00,407 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:15:00,409 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-07 11:15:00,409 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 11:15:00,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 11:15:00 BasicIcfg [2024-11-07 11:15:00,413 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 11:15:00,413 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 11:15:00,413 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 11:15:00,413 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 11:15:00,414 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:14:46" (3/4) ... [2024-11-07 11:15:00,416 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-07 11:15:00,418 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-07 11:15:00,418 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-07 11:15:00,418 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-07 11:15:00,418 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2024-11-07 11:15:00,423 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2024-11-07 11:15:00,423 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-07 11:15:00,423 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-07 11:15:00,423 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-07 11:15:00,484 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-07 11:15:00,485 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-07 11:15:00,485 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 11:15:00,485 INFO L158 Benchmark]: Toolchain (without parser) took 15119.11ms. Allocated memory was 100.7MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 76.1MB in the beginning and 604.0MB in the end (delta: -527.9MB). Peak memory consumption was 936.3MB. Max. memory is 16.1GB. [2024-11-07 11:15:00,485 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 83.9MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 11:15:00,486 INFO L158 Benchmark]: CACSL2BoogieTranslator took 393.95ms. Allocated memory is still 100.7MB. Free memory was 75.9MB in the beginning and 55.7MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-07 11:15:00,486 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.09ms. Allocated memory is still 100.7MB. Free memory was 55.7MB in the beginning and 54.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 11:15:00,486 INFO L158 Benchmark]: Boogie Preprocessor took 46.98ms. Allocated memory is still 100.7MB. Free memory was 54.0MB in the beginning and 52.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 11:15:00,486 INFO L158 Benchmark]: RCFGBuilder took 375.30ms. Allocated memory is still 100.7MB. Free memory was 52.2MB in the beginning and 71.9MB in the end (delta: -19.7MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2024-11-07 11:15:00,486 INFO L158 Benchmark]: TraceAbstraction took 14193.38ms. Allocated memory was 100.7MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 71.0MB in the beginning and 608.2MB in the end (delta: -537.2MB). Peak memory consumption was 931.9MB. Max. memory is 16.1GB. [2024-11-07 11:15:00,486 INFO L158 Benchmark]: Witness Printer took 71.43ms. Allocated memory is still 1.6GB. Free memory was 608.2MB in the beginning and 604.0MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 11:15:00,487 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 83.9MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 393.95ms. Allocated memory is still 100.7MB. Free memory was 75.9MB in the beginning and 55.7MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.09ms. Allocated memory is still 100.7MB. Free memory was 55.7MB in the beginning and 54.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 46.98ms. Allocated memory is still 100.7MB. Free memory was 54.0MB in the beginning and 52.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 375.30ms. Allocated memory is still 100.7MB. Free memory was 52.2MB in the beginning and 71.9MB in the end (delta: -19.7MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * TraceAbstraction took 14193.38ms. Allocated memory was 100.7MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 71.0MB in the beginning and 608.2MB in the end (delta: -537.2MB). Peak memory consumption was 931.9MB. Max. memory is 16.1GB. * Witness Printer took 71.43ms. Allocated memory is still 1.6GB. Free memory was 608.2MB in the beginning and 604.0MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 75 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 14.1s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 11.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 771 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 695 mSDsluCounter, 465 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 324 mSDsCounter, 60 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1501 IncrementalHoareTripleChecker+Invalid, 1561 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 60 mSolverCounterUnsat, 141 mSDtfsCounter, 1501 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=802occurred in iteration=6, InterpolantAutomatonStates: 99, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 305 NumberOfCodeBlocks, 305 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 292 ConstructedInterpolants, 0 QuantifiedInterpolants, 1136 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-07 11:15:00,514 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE