./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread/triangular-longer-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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/AutomizerMemDerefMemtrack.xml', '-i', '../sv-benchmarks/c/pthread/triangular-longer-2.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) )\nCHECK( init(main()), LTL(G valid-deref) )\nCHECK( init(main()), LTL(G valid-memtrack) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '647bb9f2bc4e44b8324ce986a0773d034e56e6ec110a9fd5233f5c8c0dbbeb10'] 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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread/triangular-longer-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 647bb9f2bc4e44b8324ce986a0773d034e56e6ec110a9fd5233f5c8c0dbbeb10 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 19:06:47,405 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 19:06:47,491 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-07 19:06:47,497 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 19:06:47,497 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 19:06:47,526 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 19:06:47,526 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 19:06:47,527 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 19:06:47,527 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 19:06:47,527 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 19:06:47,527 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 19:06:47,527 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 19:06:47,527 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 19:06:47,528 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 19:06:47,528 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 19:06:47,528 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 19:06:47,528 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 19:06:47,528 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 19:06:47,530 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 19:06:47,530 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 19:06:47,530 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-07 19:06:47,530 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-07 19:06:47,531 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-07 19:06:47,531 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 19:06:47,531 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 19:06:47,531 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 19:06:47,531 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 19:06:47,532 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 19:06:47,532 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 19:06:47,532 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 19:06:47,532 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 19:06:47,532 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 19:06:47,532 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 19:06:47,532 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:06:47,533 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 19:06:47,533 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 19:06:47,533 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 19:06:47,533 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 19:06:47,533 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 19:06:47,533 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 19:06:47,533 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 19:06:47,534 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 19:06:47,534 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 647bb9f2bc4e44b8324ce986a0773d034e56e6ec110a9fd5233f5c8c0dbbeb10 [2024-11-07 19:06:47,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 19:06:47,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 19:06:47,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 19:06:47,861 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 19:06:47,862 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 19:06:47,863 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/triangular-longer-2.i [2024-11-07 19:06:49,145 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 19:06:49,384 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 19:06:49,385 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread/triangular-longer-2.i [2024-11-07 19:06:49,395 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/54105b2f3/ae97d572907048d2be62b1078060b6d0/FLAGad420581e [2024-11-07 19:06:49,713 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/54105b2f3/ae97d572907048d2be62b1078060b6d0 [2024-11-07 19:06:49,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 19:06:49,716 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 19:06:49,717 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 19:06:49,718 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 19:06:49,722 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 19:06:49,722 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:06:49" (1/1) ... [2024-11-07 19:06:49,723 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c8ae7a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:06:49, skipping insertion in model container [2024-11-07 19:06:49,723 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:06:49" (1/1) ... [2024-11-07 19:06:49,744 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 19:06:50,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:06:50,077 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 19:06:50,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:06:50,152 INFO L204 MainTranslator]: Completed translation [2024-11-07 19:06:50,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:06:50 WrapperNode [2024-11-07 19:06:50,154 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 19:06:50,155 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 19:06:50,155 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 19:06:50,155 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 19:06:50,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:06:50" (1/1) ... [2024-11-07 19:06:50,180 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:06:50" (1/1) ... [2024-11-07 19:06:50,200 INFO L138 Inliner]: procedures = 168, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 39 [2024-11-07 19:06:50,200 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 19:06:50,202 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 19:06:50,202 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 19:06:50,202 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 19:06:50,209 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:06:50" (1/1) ... [2024-11-07 19:06:50,209 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:06:50" (1/1) ... [2024-11-07 19:06:50,211 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:06:50" (1/1) ... [2024-11-07 19:06:50,230 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 19:06:50,234 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:06:50" (1/1) ... [2024-11-07 19:06:50,234 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:06:50" (1/1) ... [2024-11-07 19:06:50,241 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:06:50" (1/1) ... [2024-11-07 19:06:50,244 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:06:50" (1/1) ... [2024-11-07 19:06:50,246 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:06:50" (1/1) ... [2024-11-07 19:06:50,248 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:06:50" (1/1) ... [2024-11-07 19:06:50,250 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 19:06:50,251 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 19:06:50,251 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 19:06:50,252 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 19:06:50,252 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:06:50" (1/1) ... [2024-11-07 19:06:50,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:06:50,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:06:50,288 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 19:06:50,292 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 19:06:50,318 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-11-07 19:06:50,318 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-11-07 19:06:50,318 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-11-07 19:06:50,318 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-11-07 19:06:50,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-07 19:06:50,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 19:06:50,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 19:06:50,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-07 19:06:50,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 19:06:50,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 19:06:50,320 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 19:06:50,464 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 19:06:50,465 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 19:06:50,599 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 19:06:50,599 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 19:06:50,679 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 19:06:50,679 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-07 19:06:50,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:06:50 BoogieIcfgContainer [2024-11-07 19:06:50,680 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 19:06:50,682 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 19:06:50,682 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 19:06:50,687 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 19:06:50,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:06:49" (1/3) ... [2024-11-07 19:06:50,688 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18c2c0f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:06:50, skipping insertion in model container [2024-11-07 19:06:50,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:06:50" (2/3) ... [2024-11-07 19:06:50,689 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18c2c0f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:06:50, skipping insertion in model container [2024-11-07 19:06:50,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:06:50" (3/3) ... [2024-11-07 19:06:50,692 INFO L112 eAbstractionObserver]: Analyzing ICFG triangular-longer-2.i [2024-11-07 19:06:50,709 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 19:06:50,710 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 19:06:50,710 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 19:06:50,764 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-07 19:06:50,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 29 transitions, 66 flow [2024-11-07 19:06:50,852 INFO L124 PetriNetUnfolderBase]: 4/27 cut-off events. [2024-11-07 19:06:50,857 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 19:06:50,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 27 events. 4/27 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2024-11-07 19:06:50,861 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 29 transitions, 66 flow [2024-11-07 19:06:50,864 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 30 places, 27 transitions, 60 flow [2024-11-07 19:06:50,879 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 19:06:50,889 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=None, 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;@79ed3fc2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 19:06:50,894 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-07 19:06:50,908 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 19:06:50,908 INFO L124 PetriNetUnfolderBase]: 4/24 cut-off events. [2024-11-07 19:06:50,909 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 19:06:50,909 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:06:50,910 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:06:50,910 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:06:50,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:06:50,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1038261642, now seen corresponding path program 1 times [2024-11-07 19:06:50,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:06:50,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098391346] [2024-11-07 19:06:50,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:06:50,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:06:51,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:06:51,129 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 19:06:51,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:06:51,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098391346] [2024-11-07 19:06:51,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098391346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:06:51,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:06:51,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 19:06:51,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152161739] [2024-11-07 19:06:51,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:06:51,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 19:06:51,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:06:51,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 19:06:51,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 19:06:51,174 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 29 [2024-11-07 19:06:51,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 27 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 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 19:06:51,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:06:51,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 29 [2024-11-07 19:06:51,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:06:51,284 INFO L124 PetriNetUnfolderBase]: 70/157 cut-off events. [2024-11-07 19:06:51,284 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-07 19:06:51,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 157 events. 70/157 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 554 event pairs, 44 based on Foata normal form. 15/161 useless extension candidates. Maximal degree in co-relation 272. Up to 113 conditions per place. [2024-11-07 19:06:51,289 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 11 selfloop transitions, 1 changer transitions 1/23 dead transitions. [2024-11-07 19:06:51,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 23 transitions, 78 flow [2024-11-07 19:06:51,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 19:06:51,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 19:06:51,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 52 transitions. [2024-11-07 19:06:51,305 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5977011494252874 [2024-11-07 19:06:51,307 INFO L175 Difference]: Start difference. First operand has 30 places, 27 transitions, 60 flow. Second operand 3 states and 52 transitions. [2024-11-07 19:06:51,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 23 transitions, 78 flow [2024-11-07 19:06:51,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 23 transitions, 76 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 19:06:51,316 INFO L231 Difference]: Finished difference. Result has 28 places, 22 transitions, 50 flow [2024-11-07 19:06:51,319 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=28, PETRI_TRANSITIONS=22} [2024-11-07 19:06:51,324 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, -2 predicate places. [2024-11-07 19:06:51,325 INFO L471 AbstractCegarLoop]: Abstraction has has 28 places, 22 transitions, 50 flow [2024-11-07 19:06:51,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 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 19:06:51,326 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:06:51,326 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:06:51,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 19:06:51,326 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:06:51,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:06:51,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1038262774, now seen corresponding path program 1 times [2024-11-07 19:06:51,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:06:51,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985908760] [2024-11-07 19:06:51,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:06:51,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:06:51,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:06:51,618 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 19:06:51,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:06:51,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985908760] [2024-11-07 19:06:51,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985908760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:06:51,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:06:51,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 19:06:51,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700592373] [2024-11-07 19:06:51,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:06:51,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:06:51,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:06:51,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:06:51,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:06:51,659 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-07 19:06:51,660 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 50 flow. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 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 19:06:51,660 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:06:51,660 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-07 19:06:51,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:06:51,983 INFO L124 PetriNetUnfolderBase]: 328/593 cut-off events. [2024-11-07 19:06:51,984 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 19:06:51,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1126 conditions, 593 events. 328/593 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2597 event pairs, 45 based on Foata normal form. 0/574 useless extension candidates. Maximal degree in co-relation 1120. Up to 243 conditions per place. [2024-11-07 19:06:51,988 INFO L140 encePairwiseOnDemand]: 22/29 looper letters, 29 selfloop transitions, 7 changer transitions 29/69 dead transitions. [2024-11-07 19:06:51,988 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 69 transitions, 274 flow [2024-11-07 19:06:51,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 19:06:51,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-07 19:06:51,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 131 transitions. [2024-11-07 19:06:51,992 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5646551724137931 [2024-11-07 19:06:51,992 INFO L175 Difference]: Start difference. First operand has 28 places, 22 transitions, 50 flow. Second operand 8 states and 131 transitions. [2024-11-07 19:06:51,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 69 transitions, 274 flow [2024-11-07 19:06:51,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 69 transitions, 273 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 19:06:51,995 INFO L231 Difference]: Finished difference. Result has 39 places, 26 transitions, 100 flow [2024-11-07 19:06:51,995 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=49, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=100, PETRI_PLACES=39, PETRI_TRANSITIONS=26} [2024-11-07 19:06:51,996 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 9 predicate places. [2024-11-07 19:06:51,996 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 26 transitions, 100 flow [2024-11-07 19:06:51,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 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 19:06:51,997 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:06:51,997 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:06:51,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 19:06:51,997 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:06:51,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:06:51,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1276324487, now seen corresponding path program 1 times [2024-11-07 19:06:51,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:06:51,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350915806] [2024-11-07 19:06:51,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:06:51,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:06:52,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:06:52,150 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 19:06:52,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:06:52,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350915806] [2024-11-07 19:06:52,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350915806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:06:52,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:06:52,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:06:52,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283069158] [2024-11-07 19:06:52,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:06:52,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 19:06:52,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:06:52,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 19:06:52,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 19:06:52,169 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-07 19:06:52,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 26 transitions, 100 flow. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 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 19:06:52,170 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:06:52,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-07 19:06:52,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:06:52,363 INFO L124 PetriNetUnfolderBase]: 247/454 cut-off events. [2024-11-07 19:06:52,363 INFO L125 PetriNetUnfolderBase]: For 406/406 co-relation queries the response was YES. [2024-11-07 19:06:52,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1183 conditions, 454 events. 247/454 cut-off events. For 406/406 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1826 event pairs, 63 based on Foata normal form. 18/466 useless extension candidates. Maximal degree in co-relation 1170. Up to 190 conditions per place. [2024-11-07 19:06:52,371 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 27 selfloop transitions, 8 changer transitions 15/54 dead transitions. [2024-11-07 19:06:52,371 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 54 transitions, 294 flow [2024-11-07 19:06:52,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 19:06:52,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 19:06:52,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 94 transitions. [2024-11-07 19:06:52,375 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5402298850574713 [2024-11-07 19:06:52,375 INFO L175 Difference]: Start difference. First operand has 39 places, 26 transitions, 100 flow. Second operand 6 states and 94 transitions. [2024-11-07 19:06:52,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 54 transitions, 294 flow [2024-11-07 19:06:52,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 54 transitions, 290 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-07 19:06:52,381 INFO L231 Difference]: Finished difference. Result has 41 places, 29 transitions, 144 flow [2024-11-07 19:06:52,381 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=144, PETRI_PLACES=41, PETRI_TRANSITIONS=29} [2024-11-07 19:06:52,382 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 11 predicate places. [2024-11-07 19:06:52,382 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 29 transitions, 144 flow [2024-11-07 19:06:52,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 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 19:06:52,384 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:06:52,385 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:06:52,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 19:06:52,385 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:06:52,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:06:52,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1117686194, now seen corresponding path program 1 times [2024-11-07 19:06:52,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:06:52,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127552296] [2024-11-07 19:06:52,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:06:52,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:06:52,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:06:52,556 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 19:06:52,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:06:52,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127552296] [2024-11-07 19:06:52,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127552296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:06:52,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:06:52,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:06:52,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801902832] [2024-11-07 19:06:52,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:06:52,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 19:06:52,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:06:52,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 19:06:52,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 19:06:52,572 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-07 19:06:52,573 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 29 transitions, 144 flow. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 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 19:06:52,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:06:52,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-07 19:06:52,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:06:52,836 INFO L124 PetriNetUnfolderBase]: 391/725 cut-off events. [2024-11-07 19:06:52,837 INFO L125 PetriNetUnfolderBase]: For 1142/1142 co-relation queries the response was YES. [2024-11-07 19:06:52,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2131 conditions, 725 events. 391/725 cut-off events. For 1142/1142 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3203 event pairs, 95 based on Foata normal form. 27/748 useless extension candidates. Maximal degree in co-relation 2114. Up to 264 conditions per place. [2024-11-07 19:06:52,847 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 47 selfloop transitions, 11 changer transitions 20/82 dead transitions. [2024-11-07 19:06:52,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 82 transitions, 518 flow [2024-11-07 19:06:52,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:06:52,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:06:52,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 144 transitions. [2024-11-07 19:06:52,850 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5517241379310345 [2024-11-07 19:06:52,850 INFO L175 Difference]: Start difference. First operand has 41 places, 29 transitions, 144 flow. Second operand 9 states and 144 transitions. [2024-11-07 19:06:52,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 82 transitions, 518 flow [2024-11-07 19:06:52,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 82 transitions, 476 flow, removed 20 selfloop flow, removed 3 redundant places. [2024-11-07 19:06:52,860 INFO L231 Difference]: Finished difference. Result has 51 places, 36 transitions, 240 flow [2024-11-07 19:06:52,860 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=240, PETRI_PLACES=51, PETRI_TRANSITIONS=36} [2024-11-07 19:06:52,862 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 21 predicate places. [2024-11-07 19:06:52,862 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 36 transitions, 240 flow [2024-11-07 19:06:52,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 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 19:06:52,863 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:06:52,863 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:06:52,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 19:06:52,865 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:06:52,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:06:52,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1000674482, now seen corresponding path program 2 times [2024-11-07 19:06:52,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:06:52,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111461593] [2024-11-07 19:06:52,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:06:52,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:06:52,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:06:53,010 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 19:06:53,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:06:53,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111461593] [2024-11-07 19:06:53,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111461593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:06:53,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:06:53,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:06:53,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967444967] [2024-11-07 19:06:53,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:06:53,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 19:06:53,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:06:53,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 19:06:53,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 19:06:53,030 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-07 19:06:53,030 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 36 transitions, 240 flow. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 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 19:06:53,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:06:53,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-07 19:06:53,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:06:53,256 INFO L124 PetriNetUnfolderBase]: 328/611 cut-off events. [2024-11-07 19:06:53,256 INFO L125 PetriNetUnfolderBase]: For 1875/1875 co-relation queries the response was YES. [2024-11-07 19:06:53,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2050 conditions, 611 events. 328/611 cut-off events. For 1875/1875 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2579 event pairs, 95 based on Foata normal form. 45/652 useless extension candidates. Maximal degree in co-relation 2027. Up to 234 conditions per place. [2024-11-07 19:06:53,260 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 38 selfloop transitions, 11 changer transitions 28/81 dead transitions. [2024-11-07 19:06:53,260 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 81 transitions, 612 flow [2024-11-07 19:06:53,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 19:06:53,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-07 19:06:53,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 127 transitions. [2024-11-07 19:06:53,262 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5474137931034483 [2024-11-07 19:06:53,262 INFO L175 Difference]: Start difference. First operand has 51 places, 36 transitions, 240 flow. Second operand 8 states and 127 transitions. [2024-11-07 19:06:53,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 81 transitions, 612 flow [2024-11-07 19:06:53,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 81 transitions, 568 flow, removed 22 selfloop flow, removed 2 redundant places. [2024-11-07 19:06:53,269 INFO L231 Difference]: Finished difference. Result has 58 places, 37 transitions, 271 flow [2024-11-07 19:06:53,269 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=271, PETRI_PLACES=58, PETRI_TRANSITIONS=37} [2024-11-07 19:06:53,270 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 28 predicate places. [2024-11-07 19:06:53,270 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 37 transitions, 271 flow [2024-11-07 19:06:53,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 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 19:06:53,270 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:06:53,271 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:06:53,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 19:06:53,271 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:06:53,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:06:53,271 INFO L85 PathProgramCache]: Analyzing trace with hash 392343623, now seen corresponding path program 1 times [2024-11-07 19:06:53,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:06:53,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513825084] [2024-11-07 19:06:53,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:06:53,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:06:53,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:06:53,384 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 19:06:53,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:06:53,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513825084] [2024-11-07 19:06:53,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513825084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:06:53,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:06:53,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 19:06:53,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854574832] [2024-11-07 19:06:53,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:06:53,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 19:06:53,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:06:53,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 19:06:53,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 19:06:53,405 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-07 19:06:53,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 37 transitions, 271 flow. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:06:53,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:06:53,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-07 19:06:53,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:06:53,658 INFO L124 PetriNetUnfolderBase]: 364/670 cut-off events. [2024-11-07 19:06:53,658 INFO L125 PetriNetUnfolderBase]: For 2964/2964 co-relation queries the response was YES. [2024-11-07 19:06:53,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2425 conditions, 670 events. 364/670 cut-off events. For 2964/2964 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2809 event pairs, 65 based on Foata normal form. 27/691 useless extension candidates. Maximal degree in co-relation 2397. Up to 148 conditions per place. [2024-11-07 19:06:53,664 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 40 selfloop transitions, 18 changer transitions 28/90 dead transitions. [2024-11-07 19:06:53,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 90 transitions, 715 flow [2024-11-07 19:06:53,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 19:06:53,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 19:06:53,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 155 transitions. [2024-11-07 19:06:53,666 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5344827586206896 [2024-11-07 19:06:53,666 INFO L175 Difference]: Start difference. First operand has 58 places, 37 transitions, 271 flow. Second operand 10 states and 155 transitions. [2024-11-07 19:06:53,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 90 transitions, 715 flow [2024-11-07 19:06:53,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 90 transitions, 646 flow, removed 25 selfloop flow, removed 7 redundant places. [2024-11-07 19:06:53,676 INFO L231 Difference]: Finished difference. Result has 63 places, 41 transitions, 350 flow [2024-11-07 19:06:53,676 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=350, PETRI_PLACES=63, PETRI_TRANSITIONS=41} [2024-11-07 19:06:53,677 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 33 predicate places. [2024-11-07 19:06:53,677 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 41 transitions, 350 flow [2024-11-07 19:06:53,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:06:53,677 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:06:53,677 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:06:53,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 19:06:53,678 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:06:53,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:06:53,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1337298357, now seen corresponding path program 2 times [2024-11-07 19:06:53,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:06:53,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636191853] [2024-11-07 19:06:53,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:06:53,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:06:53,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:06:53,849 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 19:06:53,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:06:53,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636191853] [2024-11-07 19:06:53,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636191853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:06:53,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:06:53,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 19:06:53,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476473804] [2024-11-07 19:06:53,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:06:53,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 19:06:53,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:06:53,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 19:06:53,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-07 19:06:53,862 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-07 19:06:53,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 41 transitions, 350 flow. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:06:53,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:06:53,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-07 19:06:53,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:06:54,108 INFO L124 PetriNetUnfolderBase]: 409/761 cut-off events. [2024-11-07 19:06:54,109 INFO L125 PetriNetUnfolderBase]: For 4019/4019 co-relation queries the response was YES. [2024-11-07 19:06:54,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2930 conditions, 761 events. 409/761 cut-off events. For 4019/4019 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3401 event pairs, 116 based on Foata normal form. 18/775 useless extension candidates. Maximal degree in co-relation 2900. Up to 348 conditions per place. [2024-11-07 19:06:54,115 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 47 selfloop transitions, 16 changer transitions 21/88 dead transitions. [2024-11-07 19:06:54,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 88 transitions, 782 flow [2024-11-07 19:06:54,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:06:54,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:06:54,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 140 transitions. [2024-11-07 19:06:54,117 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5363984674329502 [2024-11-07 19:06:54,117 INFO L175 Difference]: Start difference. First operand has 63 places, 41 transitions, 350 flow. Second operand 9 states and 140 transitions. [2024-11-07 19:06:54,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 88 transitions, 782 flow [2024-11-07 19:06:54,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 88 transitions, 703 flow, removed 31 selfloop flow, removed 6 redundant places. [2024-11-07 19:06:54,132 INFO L231 Difference]: Finished difference. Result has 66 places, 46 transitions, 404 flow [2024-11-07 19:06:54,132 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=404, PETRI_PLACES=66, PETRI_TRANSITIONS=46} [2024-11-07 19:06:54,133 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 36 predicate places. [2024-11-07 19:06:54,133 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 46 transitions, 404 flow [2024-11-07 19:06:54,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:06:54,134 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:06:54,134 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:06:54,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 19:06:54,134 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:06:54,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:06:54,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1068189068, now seen corresponding path program 1 times [2024-11-07 19:06:54,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:06:54,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125078078] [2024-11-07 19:06:54,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:06:54,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:06:54,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:06:54,272 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:06:54,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:06:54,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125078078] [2024-11-07 19:06:54,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125078078] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:06:54,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975054019] [2024-11-07 19:06:54,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:06:54,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:06:54,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:06:54,323 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:06:54,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 19:06:54,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:06:54,401 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-07 19:06:54,404 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:06:54,515 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:06:54,516 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:06:54,653 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:06:54,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975054019] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:06:54,654 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:06:54,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-07 19:06:54,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328847684] [2024-11-07 19:06:54,654 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:06:54,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 19:06:54,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:06:54,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 19:06:54,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-11-07 19:06:54,675 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-07 19:06:54,676 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 46 transitions, 404 flow. Second operand has 14 states, 14 states have (on average 10.071428571428571) internal successors, (141), 14 states have internal predecessors, (141), 0 states have call successors, (0), 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 19:06:54,676 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:06:54,676 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-07 19:06:54,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:06:55,215 INFO L124 PetriNetUnfolderBase]: 643/1171 cut-off events. [2024-11-07 19:06:55,216 INFO L125 PetriNetUnfolderBase]: For 7902/7902 co-relation queries the response was YES. [2024-11-07 19:06:55,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4724 conditions, 1171 events. 643/1171 cut-off events. For 7902/7902 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 5085 event pairs, 59 based on Foata normal form. 45/1210 useless extension candidates. Maximal degree in co-relation 4693. Up to 182 conditions per place. [2024-11-07 19:06:55,226 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 65 selfloop transitions, 35 changer transitions 56/160 dead transitions. [2024-11-07 19:06:55,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 160 transitions, 1460 flow [2024-11-07 19:06:55,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-07 19:06:55,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-07 19:06:55,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 293 transitions. [2024-11-07 19:06:55,228 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5317604355716878 [2024-11-07 19:06:55,229 INFO L175 Difference]: Start difference. First operand has 66 places, 46 transitions, 404 flow. Second operand 19 states and 293 transitions. [2024-11-07 19:06:55,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 160 transitions, 1460 flow [2024-11-07 19:06:55,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 160 transitions, 1395 flow, removed 26 selfloop flow, removed 4 redundant places. [2024-11-07 19:06:55,247 INFO L231 Difference]: Finished difference. Result has 88 places, 62 transitions, 740 flow [2024-11-07 19:06:55,248 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=369, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=740, PETRI_PLACES=88, PETRI_TRANSITIONS=62} [2024-11-07 19:06:55,249 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 58 predicate places. [2024-11-07 19:06:55,249 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 62 transitions, 740 flow [2024-11-07 19:06:55,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.071428571428571) internal successors, (141), 14 states have internal predecessors, (141), 0 states have call successors, (0), 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 19:06:55,250 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:06:55,250 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:06:55,269 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-07 19:06:55,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:06:55,455 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:06:55,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:06:55,455 INFO L85 PathProgramCache]: Analyzing trace with hash -776155970, now seen corresponding path program 1 times [2024-11-07 19:06:55,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:06:55,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694466729] [2024-11-07 19:06:55,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:06:55,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:06:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:06:55,642 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:06:55,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:06:55,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694466729] [2024-11-07 19:06:55,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694466729] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:06:55,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184630487] [2024-11-07 19:06:55,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:06:55,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:06:55,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:06:55,646 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:06:55,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 19:06:55,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:06:55,716 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-07 19:06:55,718 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:06:55,818 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:06:55,819 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:06:56,044 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:06:56,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184630487] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:06:56,045 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:06:56,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-11-07 19:06:56,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305965209] [2024-11-07 19:06:56,046 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:06:56,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-07 19:06:56,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:06:56,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-07 19:06:56,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2024-11-07 19:06:56,063 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-07 19:06:56,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 62 transitions, 740 flow. Second operand has 17 states, 17 states have (on average 10.294117647058824) internal successors, (175), 17 states have internal predecessors, (175), 0 states have call successors, (0), 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 19:06:56,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:06:56,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-07 19:06:56,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:06:56,798 INFO L124 PetriNetUnfolderBase]: 841/1583 cut-off events. [2024-11-07 19:06:56,798 INFO L125 PetriNetUnfolderBase]: For 19972/19972 co-relation queries the response was YES. [2024-11-07 19:06:56,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7422 conditions, 1583 events. 841/1583 cut-off events. For 19972/19972 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 7015 event pairs, 203 based on Foata normal form. 81/1660 useless extension candidates. Maximal degree in co-relation 7383. Up to 720 conditions per place. [2024-11-07 19:06:56,812 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 92 selfloop transitions, 27 changer transitions 89/212 dead transitions. [2024-11-07 19:06:56,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 212 transitions, 2414 flow [2024-11-07 19:06:56,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-07 19:06:56,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-11-07 19:06:56,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 376 transitions. [2024-11-07 19:06:56,816 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5186206896551724 [2024-11-07 19:06:56,816 INFO L175 Difference]: Start difference. First operand has 88 places, 62 transitions, 740 flow. Second operand 25 states and 376 transitions. [2024-11-07 19:06:56,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 212 transitions, 2414 flow [2024-11-07 19:06:56,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 212 transitions, 1908 flow, removed 238 selfloop flow, removed 10 redundant places. [2024-11-07 19:06:56,845 INFO L231 Difference]: Finished difference. Result has 116 places, 76 transitions, 829 flow [2024-11-07 19:06:56,846 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=829, PETRI_PLACES=116, PETRI_TRANSITIONS=76} [2024-11-07 19:06:56,846 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 86 predicate places. [2024-11-07 19:06:56,847 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 76 transitions, 829 flow [2024-11-07 19:06:56,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 10.294117647058824) internal successors, (175), 17 states have internal predecessors, (175), 0 states have call successors, (0), 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 19:06:56,847 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:06:56,847 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:06:56,864 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-07 19:06:57,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:06:57,048 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:06:57,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:06:57,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1561569822, now seen corresponding path program 2 times [2024-11-07 19:06:57,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:06:57,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464038152] [2024-11-07 19:06:57,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:06:57,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:06:57,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:06:57,223 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:06:57,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:06:57,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464038152] [2024-11-07 19:06:57,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464038152] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:06:57,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5969470] [2024-11-07 19:06:57,224 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:06:57,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:06:57,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:06:57,227 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:06:57,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-07 19:06:57,295 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:06:57,295 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:06:57,297 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-07 19:06:57,299 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:06:57,370 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:06:57,370 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:06:57,570 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:06:57,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [5969470] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:06:57,570 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:06:57,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-11-07 19:06:57,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977676789] [2024-11-07 19:06:57,571 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:06:57,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-07 19:06:57,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:06:57,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-07 19:06:57,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-11-07 19:06:57,584 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-07 19:06:57,585 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 76 transitions, 829 flow. Second operand has 17 states, 17 states have (on average 10.294117647058824) internal successors, (175), 17 states have internal predecessors, (175), 0 states have call successors, (0), 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 19:06:57,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:06:57,585 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-07 19:06:57,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:06:58,642 INFO L124 PetriNetUnfolderBase]: 1453/2768 cut-off events. [2024-11-07 19:06:58,642 INFO L125 PetriNetUnfolderBase]: For 66759/66759 co-relation queries the response was YES. [2024-11-07 19:06:58,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14744 conditions, 2768 events. 1453/2768 cut-off events. For 66759/66759 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 15016 event pairs, 138 based on Foata normal form. 81/2845 useless extension candidates. Maximal degree in co-relation 14691. Up to 484 conditions per place. [2024-11-07 19:06:58,669 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 127 selfloop transitions, 82 changer transitions 91/304 dead transitions. [2024-11-07 19:06:58,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 304 transitions, 3909 flow [2024-11-07 19:06:58,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-07 19:06:58,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2024-11-07 19:06:58,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 489 transitions. [2024-11-07 19:06:58,672 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5269396551724138 [2024-11-07 19:06:58,672 INFO L175 Difference]: Start difference. First operand has 116 places, 76 transitions, 829 flow. Second operand 32 states and 489 transitions. [2024-11-07 19:06:58,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 304 transitions, 3909 flow [2024-11-07 19:06:58,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 304 transitions, 3292 flow, removed 299 selfloop flow, removed 13 redundant places. [2024-11-07 19:06:58,745 INFO L231 Difference]: Finished difference. Result has 148 places, 122 transitions, 1640 flow [2024-11-07 19:06:58,746 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=662, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=1640, PETRI_PLACES=148, PETRI_TRANSITIONS=122} [2024-11-07 19:06:58,746 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 118 predicate places. [2024-11-07 19:06:58,746 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 122 transitions, 1640 flow [2024-11-07 19:06:58,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 10.294117647058824) internal successors, (175), 17 states have internal predecessors, (175), 0 states have call successors, (0), 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 19:06:58,747 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:06:58,747 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:06:58,764 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-07 19:06:58,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:06:58,952 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:06:58,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:06:58,952 INFO L85 PathProgramCache]: Analyzing trace with hash 370234888, now seen corresponding path program 3 times [2024-11-07 19:06:58,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:06:58,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758391080] [2024-11-07 19:06:58,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:06:58,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:06:58,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:06:59,092 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:06:59,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:06:59,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758391080] [2024-11-07 19:06:59,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758391080] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:06:59,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125634181] [2024-11-07 19:06:59,093 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:06:59,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:06:59,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:06:59,096 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:06:59,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-07 19:06:59,154 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-07 19:06:59,154 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:06:59,156 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-07 19:06:59,157 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:06:59,210 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:06:59,210 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:06:59,396 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:06:59,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [125634181] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:06:59,396 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:06:59,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2024-11-07 19:06:59,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313957500] [2024-11-07 19:06:59,397 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:06:59,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-07 19:06:59,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:06:59,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-07 19:06:59,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2024-11-07 19:06:59,413 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-07 19:06:59,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 122 transitions, 1640 flow. Second operand has 18 states, 18 states have (on average 10.277777777777779) internal successors, (185), 18 states have internal predecessors, (185), 0 states have call successors, (0), 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 19:06:59,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:06:59,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-07 19:06:59,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:07:00,833 INFO L124 PetriNetUnfolderBase]: 1840/3477 cut-off events. [2024-11-07 19:07:00,833 INFO L125 PetriNetUnfolderBase]: For 152545/152545 co-relation queries the response was YES. [2024-11-07 19:07:00,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21887 conditions, 3477 events. 1840/3477 cut-off events. For 152545/152545 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 19662 event pairs, 58 based on Foata normal form. 117/3590 useless extension candidates. Maximal degree in co-relation 21819. Up to 509 conditions per place. [2024-11-07 19:07:00,876 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 124 selfloop transitions, 123 changer transitions 115/366 dead transitions. [2024-11-07 19:07:00,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 366 transitions, 5875 flow [2024-11-07 19:07:00,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-07 19:07:00,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2024-11-07 19:07:00,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 551 transitions. [2024-11-07 19:07:00,880 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5277777777777778 [2024-11-07 19:07:00,880 INFO L175 Difference]: Start difference. First operand has 148 places, 122 transitions, 1640 flow. Second operand 36 states and 551 transitions. [2024-11-07 19:07:00,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 366 transitions, 5875 flow [2024-11-07 19:07:01,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 366 transitions, 4973 flow, removed 436 selfloop flow, removed 15 redundant places. [2024-11-07 19:07:01,116 INFO L231 Difference]: Finished difference. Result has 182 places, 157 transitions, 2462 flow [2024-11-07 19:07:01,117 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=1288, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=2462, PETRI_PLACES=182, PETRI_TRANSITIONS=157} [2024-11-07 19:07:01,117 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 152 predicate places. [2024-11-07 19:07:01,117 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 157 transitions, 2462 flow [2024-11-07 19:07:01,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.277777777777779) internal successors, (185), 18 states have internal predecessors, (185), 0 states have call successors, (0), 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 19:07:01,118 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:07:01,118 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:07:01,135 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-07 19:07:01,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-07 19:07:01,319 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:07:01,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:07:01,319 INFO L85 PathProgramCache]: Analyzing trace with hash 759735367, now seen corresponding path program 4 times [2024-11-07 19:07:01,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:07:01,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196481799] [2024-11-07 19:07:01,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:07:01,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:07:01,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:07:01,546 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:07:01,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:07:01,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196481799] [2024-11-07 19:07:01,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196481799] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:07:01,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256997470] [2024-11-07 19:07:01,546 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:07:01,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:07:01,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:07:01,549 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:07:01,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-07 19:07:01,611 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:07:01,611 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:07:01,612 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-07 19:07:01,613 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:07:01,707 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:07:01,707 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:07:01,888 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:07:01,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256997470] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:07:01,888 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:07:01,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 24 [2024-11-07 19:07:01,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928311918] [2024-11-07 19:07:01,889 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:07:01,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-07 19:07:01,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:07:01,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-07 19:07:01,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=462, Unknown=0, NotChecked=0, Total=600 [2024-11-07 19:07:01,901 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-07 19:07:01,902 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 157 transitions, 2462 flow. Second operand has 25 states, 25 states have (on average 10.08) internal successors, (252), 25 states have internal predecessors, (252), 0 states have call successors, (0), 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 19:07:01,902 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:07:01,902 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-07 19:07:01,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:07:04,183 INFO L124 PetriNetUnfolderBase]: 2650/4943 cut-off events. [2024-11-07 19:07:04,185 INFO L125 PetriNetUnfolderBase]: For 334076/334076 co-relation queries the response was YES. [2024-11-07 19:07:04,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37287 conditions, 4943 events. 2650/4943 cut-off events. For 334076/334076 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 26887 event pairs, 89 based on Foata normal form. 99/5036 useless extension candidates. Maximal degree in co-relation 37206. Up to 783 conditions per place. [2024-11-07 19:07:04,246 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 164 selfloop transitions, 178 changer transitions 146/492 dead transitions. [2024-11-07 19:07:04,247 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 492 transitions, 9931 flow [2024-11-07 19:07:04,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-07 19:07:04,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2024-11-07 19:07:04,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 749 transitions. [2024-11-07 19:07:04,250 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5270935960591133 [2024-11-07 19:07:04,250 INFO L175 Difference]: Start difference. First operand has 182 places, 157 transitions, 2462 flow. Second operand 49 states and 749 transitions. [2024-11-07 19:07:04,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 492 transitions, 9931 flow [2024-11-07 19:07:04,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 492 transitions, 8217 flow, removed 824 selfloop flow, removed 20 redundant places. [2024-11-07 19:07:04,660 INFO L231 Difference]: Finished difference. Result has 232 places, 218 transitions, 3956 flow [2024-11-07 19:07:04,660 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=1886, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=120, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=49, PETRI_FLOW=3956, PETRI_PLACES=232, PETRI_TRANSITIONS=218} [2024-11-07 19:07:04,661 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 202 predicate places. [2024-11-07 19:07:04,661 INFO L471 AbstractCegarLoop]: Abstraction has has 232 places, 218 transitions, 3956 flow [2024-11-07 19:07:04,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.08) internal successors, (252), 25 states have internal predecessors, (252), 0 states have call successors, (0), 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 19:07:04,661 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:07:04,662 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:07:04,675 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-07 19:07:04,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-07 19:07:04,865 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:07:04,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:07:04,865 INFO L85 PathProgramCache]: Analyzing trace with hash 703386770, now seen corresponding path program 5 times [2024-11-07 19:07:04,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:07:04,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681056293] [2024-11-07 19:07:04,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:07:04,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:07:04,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:07:05,309 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:07:05,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:07:05,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681056293] [2024-11-07 19:07:05,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681056293] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:07:05,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141553468] [2024-11-07 19:07:05,310 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:07:05,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:07:05,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:07:05,313 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:07:05,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-07 19:07:05,388 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2024-11-07 19:07:05,388 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:07:05,389 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-07 19:07:05,393 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:07:05,579 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:07:05,579 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:07:06,189 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:07:06,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141553468] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:07:06,190 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:07:06,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 40 [2024-11-07 19:07:06,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90208475] [2024-11-07 19:07:06,190 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:07:06,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-07 19:07:06,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:07:06,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-07 19:07:06,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=391, Invalid=1249, Unknown=0, NotChecked=0, Total=1640 [2024-11-07 19:07:06,206 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-07 19:07:06,207 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 218 transitions, 3956 flow. Second operand has 41 states, 41 states have (on average 10.121951219512194) internal successors, (415), 41 states have internal predecessors, (415), 0 states have call successors, (0), 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 19:07:06,207 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:07:06,207 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-07 19:07:06,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:07:07,753 INFO L124 PetriNetUnfolderBase]: 2722/5210 cut-off events. [2024-11-07 19:07:07,753 INFO L125 PetriNetUnfolderBase]: For 521658/521658 co-relation queries the response was YES. [2024-11-07 19:07:07,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42978 conditions, 5210 events. 2722/5210 cut-off events. For 521658/521658 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 29486 event pairs, 1013 based on Foata normal form. 63/5269 useless extension candidates. Maximal degree in co-relation 42875. Up to 3618 conditions per place. [2024-11-07 19:07:07,801 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 261 selfloop transitions, 47 changer transitions 95/407 dead transitions. [2024-11-07 19:07:07,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 407 transitions, 9316 flow [2024-11-07 19:07:07,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-07 19:07:07,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2024-11-07 19:07:07,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 484 transitions. [2024-11-07 19:07:07,805 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5057471264367817 [2024-11-07 19:07:07,805 INFO L175 Difference]: Start difference. First operand has 232 places, 218 transitions, 3956 flow. Second operand 33 states and 484 transitions. [2024-11-07 19:07:07,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 407 transitions, 9316 flow [2024-11-07 19:07:08,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 407 transitions, 6814 flow, removed 1228 selfloop flow, removed 17 redundant places. [2024-11-07 19:07:08,569 INFO L231 Difference]: Finished difference. Result has 251 places, 234 transitions, 3467 flow [2024-11-07 19:07:08,569 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=2840, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=3467, PETRI_PLACES=251, PETRI_TRANSITIONS=234} [2024-11-07 19:07:08,570 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 221 predicate places. [2024-11-07 19:07:08,570 INFO L471 AbstractCegarLoop]: Abstraction has has 251 places, 234 transitions, 3467 flow [2024-11-07 19:07:08,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 10.121951219512194) internal successors, (415), 41 states have internal predecessors, (415), 0 states have call successors, (0), 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 19:07:08,570 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:07:08,570 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:07:08,582 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-07 19:07:08,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-07 19:07:08,771 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:07:08,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:07:08,771 INFO L85 PathProgramCache]: Analyzing trace with hash -508165604, now seen corresponding path program 6 times [2024-11-07 19:07:08,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:07:08,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912697156] [2024-11-07 19:07:08,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:07:08,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:07:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:07:09,227 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 202 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:07:09,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:07:09,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912697156] [2024-11-07 19:07:09,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912697156] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:07:09,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192030668] [2024-11-07 19:07:09,228 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-07 19:07:09,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:07:09,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:07:09,230 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:07:09,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-07 19:07:09,309 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2024-11-07 19:07:09,309 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:07:09,310 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-07 19:07:09,312 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:07:09,497 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 202 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:07:09,498 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:07:10,062 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 202 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:07:10,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192030668] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:07:10,063 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:07:10,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 40 [2024-11-07 19:07:10,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044694827] [2024-11-07 19:07:10,063 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:07:10,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-07 19:07:10,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:07:10,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-07 19:07:10,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=335, Invalid=1305, Unknown=0, NotChecked=0, Total=1640 [2024-11-07 19:07:10,081 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-07 19:07:10,082 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 234 transitions, 3467 flow. Second operand has 41 states, 41 states have (on average 10.121951219512194) internal successors, (415), 41 states have internal predecessors, (415), 0 states have call successors, (0), 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 19:07:10,083 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:07:10,083 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-07 19:07:10,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:07:12,439 INFO L124 PetriNetUnfolderBase]: 3226/6363 cut-off events. [2024-11-07 19:07:12,439 INFO L125 PetriNetUnfolderBase]: For 504577/504577 co-relation queries the response was YES. [2024-11-07 19:07:12,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46658 conditions, 6363 events. 3226/6363 cut-off events. For 504577/504577 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 38292 event pairs, 596 based on Foata normal form. 63/6422 useless extension candidates. Maximal degree in co-relation 46550. Up to 2398 conditions per place. [2024-11-07 19:07:12,499 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 265 selfloop transitions, 167 changer transitions 135/571 dead transitions. [2024-11-07 19:07:12,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 571 transitions, 10350 flow [2024-11-07 19:07:12,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-11-07 19:07:12,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2024-11-07 19:07:12,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 773 transitions. [2024-11-07 19:07:12,508 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5029277813923227 [2024-11-07 19:07:12,508 INFO L175 Difference]: Start difference. First operand has 251 places, 234 transitions, 3467 flow. Second operand 53 states and 773 transitions. [2024-11-07 19:07:12,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 571 transitions, 10350 flow [2024-11-07 19:07:13,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 571 transitions, 9587 flow, removed 354 selfloop flow, removed 21 redundant places. [2024-11-07 19:07:13,325 INFO L231 Difference]: Finished difference. Result has 294 places, 290 transitions, 4639 flow [2024-11-07 19:07:13,325 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=3046, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=119, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=53, PETRI_FLOW=4639, PETRI_PLACES=294, PETRI_TRANSITIONS=290} [2024-11-07 19:07:13,326 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 264 predicate places. [2024-11-07 19:07:13,326 INFO L471 AbstractCegarLoop]: Abstraction has has 294 places, 290 transitions, 4639 flow [2024-11-07 19:07:13,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 10.121951219512194) internal successors, (415), 41 states have internal predecessors, (415), 0 states have call successors, (0), 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 19:07:13,326 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:07:13,327 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:07:13,339 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-07 19:07:13,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:07:13,527 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:07:13,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:07:13,528 INFO L85 PathProgramCache]: Analyzing trace with hash -72621784, now seen corresponding path program 7 times [2024-11-07 19:07:13,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:07:13,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464540325] [2024-11-07 19:07:13,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:07:13,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:07:13,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:07:13,996 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 202 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:07:13,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:07:13,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464540325] [2024-11-07 19:07:13,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464540325] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:07:13,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170907940] [2024-11-07 19:07:13,997 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-07 19:07:13,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:07:13,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:07:14,000 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:07:14,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-07 19:07:14,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:07:14,122 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-07 19:07:14,124 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:07:14,472 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 202 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:07:14,473 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:07:14,922 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 202 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 19:07:14,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170907940] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:07:14,923 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:07:14,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 41 [2024-11-07 19:07:14,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135411711] [2024-11-07 19:07:14,923 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:07:14,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-07 19:07:14,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:07:14,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-07 19:07:14,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=1446, Unknown=0, NotChecked=0, Total=1722 [2024-11-07 19:07:14,962 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-07 19:07:14,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 290 transitions, 4639 flow. Second operand has 42 states, 42 states have (on average 10.142857142857142) internal successors, (426), 42 states have internal predecessors, (426), 0 states have call successors, (0), 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 19:07:14,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:07:14,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-07 19:07:14,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:07:17,941 INFO L124 PetriNetUnfolderBase]: 4117/8380 cut-off events. [2024-11-07 19:07:17,941 INFO L125 PetriNetUnfolderBase]: For 859293/859293 co-relation queries the response was YES. [2024-11-07 19:07:17,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68315 conditions, 8380 events. 4117/8380 cut-off events. For 859293/859293 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 54992 event pairs, 288 based on Foata normal form. 81/8457 useless extension candidates. Maximal degree in co-relation 68194. Up to 1734 conditions per place. [2024-11-07 19:07:18,029 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 239 selfloop transitions, 311 changer transitions 157/711 dead transitions. [2024-11-07 19:07:18,029 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 711 transitions, 14467 flow [2024-11-07 19:07:18,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-11-07 19:07:18,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2024-11-07 19:07:18,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 871 transitions. [2024-11-07 19:07:18,032 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5090590298071304 [2024-11-07 19:07:18,032 INFO L175 Difference]: Start difference. First operand has 294 places, 290 transitions, 4639 flow. Second operand 59 states and 871 transitions. [2024-11-07 19:07:18,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 711 transitions, 14467 flow [2024-11-07 19:07:19,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 711 transitions, 12986 flow, removed 640 selfloop flow, removed 29 redundant places. [2024-11-07 19:07:19,546 INFO L231 Difference]: Finished difference. Result has 339 places, 387 transitions, 6852 flow [2024-11-07 19:07:19,546 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=3874, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=228, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=59, PETRI_FLOW=6852, PETRI_PLACES=339, PETRI_TRANSITIONS=387} [2024-11-07 19:07:19,547 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 309 predicate places. [2024-11-07 19:07:19,547 INFO L471 AbstractCegarLoop]: Abstraction has has 339 places, 387 transitions, 6852 flow [2024-11-07 19:07:19,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 10.142857142857142) internal successors, (426), 42 states have internal predecessors, (426), 0 states have call successors, (0), 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 19:07:19,547 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:07:19,547 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:07:19,560 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-07 19:07:19,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-07 19:07:19,751 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:07:19,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:07:19,752 INFO L85 PathProgramCache]: Analyzing trace with hash 918888282, now seen corresponding path program 8 times [2024-11-07 19:07:19,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:07:19,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544606170] [2024-11-07 19:07:19,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:07:19,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:07:19,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:07:20,182 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:07:20,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:07:20,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544606170] [2024-11-07 19:07:20,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544606170] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:07:20,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563771974] [2024-11-07 19:07:20,183 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:07:20,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:07:20,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:07:20,186 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:07:20,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-07 19:07:20,251 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 19:07:20,252 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:07:20,253 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-07 19:07:20,255 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:07:20,369 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:07:20,369 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:07:20,705 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:07:20,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563771974] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:07:20,705 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:07:20,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 40 [2024-11-07 19:07:20,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334486330] [2024-11-07 19:07:20,705 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:07:20,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-07 19:07:20,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:07:20,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-07 19:07:20,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=1383, Unknown=0, NotChecked=0, Total=1640 [2024-11-07 19:07:20,732 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-07 19:07:20,733 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 387 transitions, 6852 flow. Second operand has 41 states, 41 states have (on average 10.121951219512194) internal successors, (415), 41 states have internal predecessors, (415), 0 states have call successors, (0), 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 19:07:20,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:07:20,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-07 19:07:20,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:07:23,957 INFO L124 PetriNetUnfolderBase]: 5161/10492 cut-off events. [2024-11-07 19:07:23,957 INFO L125 PetriNetUnfolderBase]: For 1483818/1483818 co-relation queries the response was YES. [2024-11-07 19:07:24,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95272 conditions, 10492 events. 5161/10492 cut-off events. For 1483818/1483818 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 72706 event pairs, 150 based on Foata normal form. 81/10569 useless extension candidates. Maximal degree in co-relation 95134. Up to 2286 conditions per place. [2024-11-07 19:07:24,063 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 222 selfloop transitions, 424 changer transitions 157/807 dead transitions. [2024-11-07 19:07:24,063 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 807 transitions, 17707 flow [2024-11-07 19:07:24,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-11-07 19:07:24,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2024-11-07 19:07:24,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 881 transitions. [2024-11-07 19:07:24,065 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5149035651665692 [2024-11-07 19:07:24,065 INFO L175 Difference]: Start difference. First operand has 339 places, 387 transitions, 6852 flow. Second operand 59 states and 881 transitions. [2024-11-07 19:07:24,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 807 transitions, 17707 flow [2024-11-07 19:07:27,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 807 transitions, 15062 flow, removed 1172 selfloop flow, removed 31 redundant places. [2024-11-07 19:07:27,515 INFO L231 Difference]: Finished difference. Result has 383 places, 483 transitions, 8750 flow [2024-11-07 19:07:27,516 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=5411, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=387, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=343, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=59, PETRI_FLOW=8750, PETRI_PLACES=383, PETRI_TRANSITIONS=483} [2024-11-07 19:07:27,516 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 353 predicate places. [2024-11-07 19:07:27,517 INFO L471 AbstractCegarLoop]: Abstraction has has 383 places, 483 transitions, 8750 flow [2024-11-07 19:07:27,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 10.121951219512194) internal successors, (415), 41 states have internal predecessors, (415), 0 states have call successors, (0), 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 19:07:27,517 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:07:27,517 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:07:27,529 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-07 19:07:27,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:07:27,718 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:07:27,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:07:27,718 INFO L85 PathProgramCache]: Analyzing trace with hash -867518256, now seen corresponding path program 9 times [2024-11-07 19:07:27,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:07:27,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414660436] [2024-11-07 19:07:27,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:07:27,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:07:27,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:07:28,093 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:07:28,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:07:28,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414660436] [2024-11-07 19:07:28,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414660436] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:07:28,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583120935] [2024-11-07 19:07:28,094 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:07:28,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:07:28,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:07:28,097 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:07:28,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-07 19:07:28,166 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-11-07 19:07:28,166 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:07:28,167 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-07 19:07:28,169 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:07:28,264 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:07:28,264 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:07:28,674 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:07:28,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1583120935] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:07:28,674 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:07:28,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 41 [2024-11-07 19:07:28,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428122667] [2024-11-07 19:07:28,674 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:07:28,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-07 19:07:28,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:07:28,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-07 19:07:28,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=315, Invalid=1407, Unknown=0, NotChecked=0, Total=1722 [2024-11-07 19:07:28,695 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-07 19:07:28,695 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 483 transitions, 8750 flow. Second operand has 42 states, 42 states have (on average 10.142857142857142) internal successors, (426), 42 states have internal predecessors, (426), 0 states have call successors, (0), 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 19:07:28,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:07:28,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-07 19:07:28,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:07:32,770 INFO L124 PetriNetUnfolderBase]: 5935/11928 cut-off events. [2024-11-07 19:07:32,770 INFO L125 PetriNetUnfolderBase]: For 1948370/1948370 co-relation queries the response was YES. [2024-11-07 19:07:32,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114695 conditions, 11928 events. 5935/11928 cut-off events. For 1948370/1948370 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 84046 event pairs, 66 based on Foata normal form. 90/12014 useless extension candidates. Maximal degree in co-relation 114539. Up to 2607 conditions per place. [2024-11-07 19:07:32,896 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 215 selfloop transitions, 497 changer transitions 162/878 dead transitions. [2024-11-07 19:07:32,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 878 transitions, 20217 flow [2024-11-07 19:07:32,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-07 19:07:32,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2024-11-07 19:07:32,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 907 transitions. [2024-11-07 19:07:32,898 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.521264367816092 [2024-11-07 19:07:32,899 INFO L175 Difference]: Start difference. First operand has 383 places, 483 transitions, 8750 flow. Second operand 60 states and 907 transitions. [2024-11-07 19:07:32,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 878 transitions, 20217 flow [2024-11-07 19:07:37,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 878 transitions, 17679 flow, removed 1081 selfloop flow, removed 34 redundant places. [2024-11-07 19:07:37,640 INFO L231 Difference]: Finished difference. Result has 423 places, 543 transitions, 10359 flow [2024-11-07 19:07:37,640 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=7126, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=483, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=444, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=60, PETRI_FLOW=10359, PETRI_PLACES=423, PETRI_TRANSITIONS=543} [2024-11-07 19:07:37,641 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 393 predicate places. [2024-11-07 19:07:37,641 INFO L471 AbstractCegarLoop]: Abstraction has has 423 places, 543 transitions, 10359 flow [2024-11-07 19:07:37,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 10.142857142857142) internal successors, (426), 42 states have internal predecessors, (426), 0 states have call successors, (0), 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 19:07:37,641 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:07:37,641 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:07:37,653 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-07 19:07:37,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-07 19:07:37,842 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:07:37,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:07:37,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1798425979, now seen corresponding path program 10 times [2024-11-07 19:07:37,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:07:37,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50566965] [2024-11-07 19:07:37,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:07:37,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:07:37,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:07:38,186 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:07:38,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:07:38,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50566965] [2024-11-07 19:07:38,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50566965] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:07:38,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607202868] [2024-11-07 19:07:38,187 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:07:38,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:07:38,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:07:38,190 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:07:38,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-07 19:07:38,253 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:07:38,253 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:07:38,255 INFO L255 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-07 19:07:38,256 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:07:38,347 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:07:38,347 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:07:38,659 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:07:38,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607202868] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:07:38,659 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:07:38,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 42 [2024-11-07 19:07:38,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495960584] [2024-11-07 19:07:38,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:07:38,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-07 19:07:38,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:07:38,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-07 19:07:38,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=394, Invalid=1412, Unknown=0, NotChecked=0, Total=1806 [2024-11-07 19:07:38,672 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-07 19:07:38,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 543 transitions, 10359 flow. Second operand has 43 states, 43 states have (on average 10.13953488372093) internal successors, (436), 43 states have internal predecessors, (436), 0 states have call successors, (0), 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 19:07:38,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:07:38,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-07 19:07:38,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:07:42,935 INFO L124 PetriNetUnfolderBase]: 6070/12269 cut-off events. [2024-11-07 19:07:42,935 INFO L125 PetriNetUnfolderBase]: For 2469013/2469013 co-relation queries the response was YES. [2024-11-07 19:07:43,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125166 conditions, 12269 events. 6070/12269 cut-off events. For 2469013/2469013 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 87119 event pairs, 203 based on Foata normal form. 27/12290 useless extension candidates. Maximal degree in co-relation 124995. Up to 2661 conditions per place. [2024-11-07 19:07:43,182 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 226 selfloop transitions, 481 changer transitions 87/798 dead transitions. [2024-11-07 19:07:43,183 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 798 transitions, 18584 flow [2024-11-07 19:07:43,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-07 19:07:43,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2024-11-07 19:07:43,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 653 transitions. [2024-11-07 19:07:43,185 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5236567762630313 [2024-11-07 19:07:43,185 INFO L175 Difference]: Start difference. First operand has 423 places, 543 transitions, 10359 flow. Second operand 43 states and 653 transitions. [2024-11-07 19:07:43,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 798 transitions, 18584 flow [2024-11-07 19:07:50,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 798 transitions, 15137 flow, removed 1418 selfloop flow, removed 42 redundant places. [2024-11-07 19:07:50,292 INFO L231 Difference]: Finished difference. Result has 420 places, 561 transitions, 10132 flow [2024-11-07 19:07:50,293 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=8330, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=463, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=43, PETRI_FLOW=10132, PETRI_PLACES=420, PETRI_TRANSITIONS=561} [2024-11-07 19:07:50,293 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 390 predicate places. [2024-11-07 19:07:50,294 INFO L471 AbstractCegarLoop]: Abstraction has has 420 places, 561 transitions, 10132 flow [2024-11-07 19:07:50,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 10.13953488372093) internal successors, (436), 43 states have internal predecessors, (436), 0 states have call successors, (0), 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 19:07:50,294 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:07:50,294 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:07:50,308 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-07 19:07:50,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-07 19:07:50,495 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:07:50,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:07:50,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1321530079, now seen corresponding path program 11 times [2024-11-07 19:07:50,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:07:50,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046296312] [2024-11-07 19:07:50,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:07:50,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:07:50,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:07:50,807 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:07:50,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:07:50,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046296312] [2024-11-07 19:07:50,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046296312] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 19:07:50,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199779272] [2024-11-07 19:07:50,807 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 19:07:50,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:07:50,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:07:50,810 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 19:07:50,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-07 19:07:50,876 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-07 19:07:50,876 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:07:50,878 INFO L255 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-07 19:07:50,881 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:07:50,979 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:07:50,979 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 19:07:51,270 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 19:07:51,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199779272] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 19:07:51,270 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 19:07:51,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 43 [2024-11-07 19:07:51,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250366438] [2024-11-07 19:07:51,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 19:07:51,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-07 19:07:51,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:07:51,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-07 19:07:51,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=397, Invalid=1495, Unknown=0, NotChecked=0, Total=1892 [2024-11-07 19:07:51,306 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-07 19:07:51,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 561 transitions, 10132 flow. Second operand has 44 states, 44 states have (on average 10.113636363636363) internal successors, (445), 44 states have internal predecessors, (445), 0 states have call successors, (0), 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 19:07:51,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:07:51,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-07 19:07:51,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:07:55,434 INFO L124 PetriNetUnfolderBase]: 6043/12228 cut-off events. [2024-11-07 19:07:55,434 INFO L125 PetriNetUnfolderBase]: For 1926459/1926459 co-relation queries the response was YES. [2024-11-07 19:07:55,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112857 conditions, 12228 events. 6043/12228 cut-off events. For 1926459/1926459 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 86761 event pairs, 152 based on Foata normal form. 45/12269 useless extension candidates. Maximal degree in co-relation 112688. Up to 2613 conditions per place. [2024-11-07 19:07:55,616 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 212 selfloop transitions, 494 changer transitions 101/811 dead transitions. [2024-11-07 19:07:55,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 811 transitions, 17073 flow [2024-11-07 19:07:55,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-07 19:07:55,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2024-11-07 19:07:55,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 681 transitions. [2024-11-07 19:07:55,618 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5218390804597701 [2024-11-07 19:07:55,618 INFO L175 Difference]: Start difference. First operand has 420 places, 561 transitions, 10132 flow. Second operand 45 states and 681 transitions. [2024-11-07 19:07:55,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 811 transitions, 17073 flow [2024-11-07 19:08:00,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 811 transitions, 15456 flow, removed 651 selfloop flow, removed 24 redundant places. [2024-11-07 19:08:00,982 INFO L231 Difference]: Finished difference. Result has 443 places, 564 transitions, 10627 flow [2024-11-07 19:08:00,982 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=9299, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=561, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=491, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=10627, PETRI_PLACES=443, PETRI_TRANSITIONS=564} [2024-11-07 19:08:00,983 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 413 predicate places. [2024-11-07 19:08:00,983 INFO L471 AbstractCegarLoop]: Abstraction has has 443 places, 564 transitions, 10627 flow [2024-11-07 19:08:00,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 10.113636363636363) internal successors, (445), 44 states have internal predecessors, (445), 0 states have call successors, (0), 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 19:08:00,983 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:08:00,983 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:08:00,994 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-07 19:08:01,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 19:08:01,184 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:08:01,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:08:01,184 INFO L85 PathProgramCache]: Analyzing trace with hash 193418840, now seen corresponding path program 12 times [2024-11-07 19:08:01,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:08:01,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029853796] [2024-11-07 19:08:01,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:08:01,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:08:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 19:08:01,199 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 19:08:01,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 19:08:01,283 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 19:08:01,283 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 19:08:01,284 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-11-07 19:08:01,286 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-11-07 19:08:01,286 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-07 19:08:01,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-07 19:08:01,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 19:08:01,287 INFO L407 BasicCegarLoop]: Path program histogram: [12, 2, 2, 1, 1, 1, 1] [2024-11-07 19:08:01,377 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-07 19:08:01,377 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 19:08:01,386 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 07:08:01 BasicIcfg [2024-11-07 19:08:01,386 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 19:08:01,388 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 19:08:01,388 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 19:08:01,389 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 19:08:01,389 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:06:50" (3/4) ... [2024-11-07 19:08:01,394 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-07 19:08:01,394 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 19:08:01,395 INFO L158 Benchmark]: Toolchain (without parser) took 71678.91ms. Allocated memory was 117.4MB in the beginning and 6.3GB in the end (delta: 6.2GB). Free memory was 90.4MB in the beginning and 4.9GB in the end (delta: -4.9GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2024-11-07 19:08:01,395 INFO L158 Benchmark]: CDTParser took 0.94ms. Allocated memory is still 117.4MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 19:08:01,396 INFO L158 Benchmark]: CACSL2BoogieTranslator took 436.73ms. Allocated memory is still 117.4MB. Free memory was 90.2MB in the beginning and 71.1MB in the end (delta: 19.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 19:08:01,396 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.39ms. Allocated memory is still 117.4MB. Free memory was 71.1MB in the beginning and 69.6MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 19:08:01,396 INFO L158 Benchmark]: Boogie Preprocessor took 48.86ms. Allocated memory is still 117.4MB. Free memory was 69.4MB in the beginning and 68.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 19:08:01,396 INFO L158 Benchmark]: RCFGBuilder took 428.56ms. Allocated memory is still 117.4MB. Free memory was 68.0MB in the beginning and 50.8MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-07 19:08:01,398 INFO L158 Benchmark]: TraceAbstraction took 70703.84ms. Allocated memory was 117.4MB in the beginning and 6.3GB in the end (delta: 6.2GB). Free memory was 50.2MB in the beginning and 4.9GB in the end (delta: -4.9GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2024-11-07 19:08:01,398 INFO L158 Benchmark]: Witness Printer took 6.36ms. Allocated memory is still 6.3GB. Free memory was 4.9GB in the beginning and 4.9GB in the end (delta: 375.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 19:08:01,399 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.94ms. Allocated memory is still 117.4MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 436.73ms. Allocated memory is still 117.4MB. Free memory was 90.2MB in the beginning and 71.1MB in the end (delta: 19.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.39ms. Allocated memory is still 117.4MB. Free memory was 71.1MB in the beginning and 69.6MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.86ms. Allocated memory is still 117.4MB. Free memory was 69.4MB in the beginning and 68.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 428.56ms. Allocated memory is still 117.4MB. Free memory was 68.0MB in the beginning and 50.8MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 70703.84ms. Allocated memory was 117.4MB in the beginning and 6.3GB in the end (delta: 6.2GB). Free memory was 50.2MB in the beginning and 4.9GB in the end (delta: -4.9GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * Witness Printer took 6.36ms. Allocated memory is still 6.3GB. Free memory was 4.9GB in the beginning and 4.9GB in the end (delta: 375.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 693]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 693. Possible FailurePath: [L694] 0 int i = 3, j = 6; [L712] 0 pthread_t id1, id2; [L713] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [\old(arg)={0:0}, \old(argc)=49, \old(argv)={50:51}, argc=49, i=3, id1=-1, j=6] [L696] 1 int k = 0; VAL [\old(arg)={0:0}, arg={0:0}, i=3, j=6, k=0] [L696] COND TRUE 1 k < 10 VAL [\old(arg)={0:0}, arg={0:0}, i=3, j=6, k=0] [L714] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(argc)=49, \old(argv)={50:51}, arg={0:0}, argc=49, i=3, id1=-1, id2=0, j=6, k=0] [L704] 2 int k = 0; VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=3, j=6, k=0, k=0] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=0, k=0] [L696] 1 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=0, k=1] [L704] COND TRUE 2 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=0, k=1] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=7, j=8, k=0, k=1] [L704] 2 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=7, j=8, k=1, k=1] [L696] COND TRUE 1 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=7, j=8, k=1, k=1] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=1, k=1] [L704] COND TRUE 2 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=1, k=1] [L696] 1 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=1, k=2] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=1, k=2] [L696] COND TRUE 1 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=1, k=2] [L704] 2 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=2, k=2] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=2, k=2] [L696] 1 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=2, k=3] [L704] COND TRUE 2 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=2, k=3] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=11, j=12, k=2, k=3] [L704] 2 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=11, j=12, k=3, k=3] [L696] COND TRUE 1 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=11, j=12, k=3, k=3] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=3, k=3] [L704] COND TRUE 2 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=3, k=3] [L696] 1 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=3, k=4] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=13, j=14, k=3, k=4] [L696] COND TRUE 1 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=13, j=14, k=3, k=4] [L704] 2 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=13, j=14, k=4, k=4] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=4, k=4] [L696] 1 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=4, k=5] [L704] COND TRUE 2 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=4, k=5] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=15, j=16, k=4, k=5] [L696] COND TRUE 1 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=15, j=16, k=4, k=5] [L704] 2 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=15, j=16, k=5, k=5] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=17, j=16, k=5, k=5] [L704] COND TRUE 2 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=17, j=16, k=5, k=5] [L696] 1 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=17, j=16, k=5, k=6] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=17, j=18, k=5, k=6] [L696] COND TRUE 1 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=17, j=18, k=5, k=6] [L704] 2 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=17, j=18, k=6, k=6] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=19, j=18, k=6, k=6] [L696] 1 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=19, j=18, k=6, k=7] [L704] COND TRUE 2 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=19, j=18, k=6, k=7] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=19, j=20, k=6, k=7] [L696] COND TRUE 1 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=19, j=20, k=6, k=7] [L704] 2 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=19, j=20, k=7, k=7] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=21, j=20, k=7, k=7] [L696] 1 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=21, j=20, k=7, k=8] [L704] COND TRUE 2 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=21, j=20, k=7, k=8] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=21, j=22, k=7, k=8] [L704] 2 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=21, j=22, k=8, k=8] [L704] COND TRUE 2 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=21, j=22, k=8, k=8] [L696] COND TRUE 1 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=21, j=22, k=8, k=8] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=23, j=22, k=8, k=8] [L696] 1 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=23, j=22, k=8, k=9] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=23, j=24, k=8, k=9] [L704] 2 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=23, j=24, k=9, k=9] [L704] COND TRUE 2 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=23, j=24, k=9, k=9] [L716] 0 int condI = i >= (2*10 +6); VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(argc)=49, \old(argv)={50:51}, arg={0:0}, arg={0:0}, argc=49, condI=0, i=23, id1=-1, id2=0, j=24, k=9, k=9] [L696] COND TRUE 1 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=23, j=24, k=9, k=9] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=25, j=24, k=9, k=9] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=25, j=26, k=9, k=9] [L719] 0 int condJ = j >= (2*10 +6); VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(argc)=49, \old(argv)={50:51}, arg={0:0}, arg={0:0}, argc=49, condI=0, condJ=1, i=25, id1=-1, id2=0, j=26, k=9, k=9] [L721] COND TRUE 0 condI || condJ [L722] CALL 0 reach_error() [L693] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=25, j=26, k=9, k=9] [L693] 0 __assert_fail ("0", "triangular-longer-2.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=25, j=26, k=9, k=9] - UnprovableResult [Line: 711]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 38 locations, 4 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: 70.5s, OverallIterations: 20, TraceHistogramMax: 10, PathProgramHistogramMax: 12, EmptinessCheckTime: 0.0s, AutomataDifference: 56.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7859 SdHoareTripleChecker+Valid, 6.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7836 mSDsluCounter, 129 SdHoareTripleChecker+Invalid, 4.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 118 mSDsCounter, 409 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8745 IncrementalHoareTripleChecker+Invalid, 9154 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 409 mSolverCounterUnsat, 11 mSDtfsCounter, 8745 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1862 GetRequests, 1005 SyntacticMatches, 0 SemanticMatches, 857 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17887 ImplicationChecksByTransitivity, 10.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10627occurred in iteration=19, InterpolantAutomatonStates: 566, 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: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 10.1s InterpolantComputationTime, 1349 NumberOfCodeBlocks, 1349 NumberOfCodeBlocksAsserted, 78 NumberOfCheckSat, 1830 ConstructedInterpolants, 0 QuantifiedInterpolants, 8043 SizeOfPredicates, 160 NumberOfNonLiveVariables, 1702 ConjunctsInSsa, 224 ConjunctsInUnsatCore, 43 InterpolantComputations, 7 PerfectInterpolantSequences, 51/4683 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-07 19:08:01,431 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread/triangular-longer-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 647bb9f2bc4e44b8324ce986a0773d034e56e6ec110a9fd5233f5c8c0dbbeb10 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 19:08:04,171 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 19:08:04,266 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-07 19:08:04,272 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 19:08:04,273 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 19:08:04,292 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 19:08:04,292 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 19:08:04,293 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 19:08:04,293 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 19:08:04,293 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 19:08:04,293 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 19:08:04,293 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 19:08:04,294 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 19:08:04,294 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 19:08:04,294 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 19:08:04,294 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 19:08:04,294 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 19:08:04,294 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 19:08:04,294 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 19:08:04,294 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 19:08:04,295 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-07 19:08:04,295 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-07 19:08:04,295 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-07 19:08:04,295 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 19:08:04,295 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 19:08:04,295 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-07 19:08:04,295 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 19:08:04,295 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-07 19:08:04,295 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 19:08:04,295 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 19:08:04,295 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 19:08:04,295 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 19:08:04,295 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 19:08:04,295 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 19:08:04,295 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 19:08:04,295 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:08:04,296 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 19:08:04,296 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 19:08:04,296 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-07 19:08:04,296 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-07 19:08:04,296 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 19:08:04,296 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 19:08:04,296 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 19:08:04,296 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 19:08:04,296 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 647bb9f2bc4e44b8324ce986a0773d034e56e6ec110a9fd5233f5c8c0dbbeb10 [2024-11-07 19:08:04,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 19:08:04,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 19:08:04,583 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 19:08:04,585 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 19:08:04,586 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 19:08:04,587 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/triangular-longer-2.i [2024-11-07 19:08:05,904 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 19:08:06,149 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 19:08:06,150 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread/triangular-longer-2.i [2024-11-07 19:08:06,162 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cc6c9c09b/200512dedcd24fe4a133f81296ee172f/FLAG29fa9566d [2024-11-07 19:08:06,174 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cc6c9c09b/200512dedcd24fe4a133f81296ee172f [2024-11-07 19:08:06,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 19:08:06,177 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 19:08:06,180 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 19:08:06,180 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 19:08:06,184 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 19:08:06,185 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:08:06" (1/1) ... [2024-11-07 19:08:06,187 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c707bec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:08:06, skipping insertion in model container [2024-11-07 19:08:06,187 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:08:06" (1/1) ... [2024-11-07 19:08:06,212 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 19:08:06,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:08:06,469 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 19:08:06,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:08:06,577 INFO L204 MainTranslator]: Completed translation [2024-11-07 19:08:06,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:08:06 WrapperNode [2024-11-07 19:08:06,578 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 19:08:06,580 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 19:08:06,580 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 19:08:06,580 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 19:08:06,587 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:08:06" (1/1) ... [2024-11-07 19:08:06,602 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:08:06" (1/1) ... [2024-11-07 19:08:06,629 INFO L138 Inliner]: procedures = 169, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 40 [2024-11-07 19:08:06,630 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 19:08:06,631 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 19:08:06,631 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 19:08:06,632 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 19:08:06,639 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:08:06" (1/1) ... [2024-11-07 19:08:06,639 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:08:06" (1/1) ... [2024-11-07 19:08:06,646 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:08:06" (1/1) ... [2024-11-07 19:08:06,662 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 19:08:06,663 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:08:06" (1/1) ... [2024-11-07 19:08:06,663 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:08:06" (1/1) ... [2024-11-07 19:08:06,674 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:08:06" (1/1) ... [2024-11-07 19:08:06,679 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:08:06" (1/1) ... [2024-11-07 19:08:06,680 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:08:06" (1/1) ... [2024-11-07 19:08:06,685 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:08:06" (1/1) ... [2024-11-07 19:08:06,687 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 19:08:06,688 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 19:08:06,688 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 19:08:06,688 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 19:08:06,689 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:08:06" (1/1) ... [2024-11-07 19:08:06,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:08:06,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:08:06,727 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 19:08:06,733 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 19:08:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-11-07 19:08:06,751 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-11-07 19:08:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-11-07 19:08:06,751 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-11-07 19:08:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-07 19:08:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 19:08:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-07 19:08:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-07 19:08:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 19:08:06,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 19:08:06,753 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 19:08:06,893 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 19:08:06,895 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 19:08:07,073 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 19:08:07,073 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 19:08:07,250 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 19:08:07,251 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-07 19:08:07,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:08:07 BoogieIcfgContainer [2024-11-07 19:08:07,251 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 19:08:07,254 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 19:08:07,254 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 19:08:07,259 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 19:08:07,260 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:08:06" (1/3) ... [2024-11-07 19:08:07,260 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea06c57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:08:07, skipping insertion in model container [2024-11-07 19:08:07,260 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:08:06" (2/3) ... [2024-11-07 19:08:07,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea06c57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:08:07, skipping insertion in model container [2024-11-07 19:08:07,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:08:07" (3/3) ... [2024-11-07 19:08:07,262 INFO L112 eAbstractionObserver]: Analyzing ICFG triangular-longer-2.i [2024-11-07 19:08:07,275 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 19:08:07,277 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 19:08:07,277 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 19:08:07,321 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-07 19:08:07,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 29 transitions, 66 flow [2024-11-07 19:08:07,387 INFO L124 PetriNetUnfolderBase]: 4/27 cut-off events. [2024-11-07 19:08:07,389 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 19:08:07,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 27 events. 4/27 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2024-11-07 19:08:07,396 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 29 transitions, 66 flow [2024-11-07 19:08:07,399 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 30 places, 27 transitions, 60 flow [2024-11-07 19:08:07,409 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 19:08:07,420 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=None, 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;@7fb8b79f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 19:08:07,420 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-07 19:08:07,431 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 19:08:07,432 INFO L124 PetriNetUnfolderBase]: 4/24 cut-off events. [2024-11-07 19:08:07,432 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 19:08:07,432 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:08:07,436 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:08:07,436 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:08:07,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:08:07,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1944846646, now seen corresponding path program 1 times [2024-11-07 19:08:07,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:08:07,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1308532031] [2024-11-07 19:08:07,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:08:07,456 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:08:07,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:08:07,458 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:08:07,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-07 19:08:07,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:08:07,554 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 19:08:07,561 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:08:07,610 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 19:08:07,611 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:08:07,611 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:08:07,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1308532031] [2024-11-07 19:08:07,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1308532031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:08:07,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:08:07,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 19:08:07,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984362827] [2024-11-07 19:08:07,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:08:07,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 19:08:07,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:08:07,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 19:08:07,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 19:08:07,649 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 29 [2024-11-07 19:08:07,652 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 27 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 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 19:08:07,652 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:08:07,652 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 29 [2024-11-07 19:08:07,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:08:07,760 INFO L124 PetriNetUnfolderBase]: 70/157 cut-off events. [2024-11-07 19:08:07,760 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-07 19:08:07,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 157 events. 70/157 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 552 event pairs, 44 based on Foata normal form. 15/161 useless extension candidates. Maximal degree in co-relation 272. Up to 113 conditions per place. [2024-11-07 19:08:07,766 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 11 selfloop transitions, 1 changer transitions 1/23 dead transitions. [2024-11-07 19:08:07,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 23 transitions, 78 flow [2024-11-07 19:08:07,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 19:08:07,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 19:08:07,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 52 transitions. [2024-11-07 19:08:07,780 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5977011494252874 [2024-11-07 19:08:07,782 INFO L175 Difference]: Start difference. First operand has 30 places, 27 transitions, 60 flow. Second operand 3 states and 52 transitions. [2024-11-07 19:08:07,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 23 transitions, 78 flow [2024-11-07 19:08:07,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 23 transitions, 76 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 19:08:07,791 INFO L231 Difference]: Finished difference. Result has 28 places, 22 transitions, 50 flow [2024-11-07 19:08:07,795 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=28, PETRI_TRANSITIONS=22} [2024-11-07 19:08:07,799 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, -2 predicate places. [2024-11-07 19:08:07,800 INFO L471 AbstractCegarLoop]: Abstraction has has 28 places, 22 transitions, 50 flow [2024-11-07 19:08:07,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 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 19:08:07,800 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:08:07,800 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:08:07,805 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-07 19:08:08,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:08:08,001 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:08:08,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:08:08,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1944845514, now seen corresponding path program 1 times [2024-11-07 19:08:08,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:08:08,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1712821272] [2024-11-07 19:08:08,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:08:08,003 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:08:08,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:08:08,006 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:08:08,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-07 19:08:08,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:08:08,083 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 19:08:08,084 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:08:08,226 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 19:08:08,227 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:08:08,227 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:08:08,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1712821272] [2024-11-07 19:08:08,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1712821272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:08:08,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:08:08,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 19:08:08,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622147242] [2024-11-07 19:08:08,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:08:08,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:08:08,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:08:08,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:08:08,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:08:08,254 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-07 19:08:08,255 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 50 flow. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 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 19:08:08,255 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:08:08,255 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-07 19:08:08,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:08:08,552 INFO L124 PetriNetUnfolderBase]: 328/593 cut-off events. [2024-11-07 19:08:08,552 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 19:08:08,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1126 conditions, 593 events. 328/593 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2597 event pairs, 45 based on Foata normal form. 0/574 useless extension candidates. Maximal degree in co-relation 1120. Up to 243 conditions per place. [2024-11-07 19:08:08,563 INFO L140 encePairwiseOnDemand]: 22/29 looper letters, 29 selfloop transitions, 7 changer transitions 29/69 dead transitions. [2024-11-07 19:08:08,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 69 transitions, 274 flow [2024-11-07 19:08:08,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 19:08:08,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-07 19:08:08,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 131 transitions. [2024-11-07 19:08:08,568 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5646551724137931 [2024-11-07 19:08:08,568 INFO L175 Difference]: Start difference. First operand has 28 places, 22 transitions, 50 flow. Second operand 8 states and 131 transitions. [2024-11-07 19:08:08,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 69 transitions, 274 flow [2024-11-07 19:08:08,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 69 transitions, 273 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 19:08:08,573 INFO L231 Difference]: Finished difference. Result has 39 places, 26 transitions, 100 flow [2024-11-07 19:08:08,573 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=49, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=100, PETRI_PLACES=39, PETRI_TRANSITIONS=26} [2024-11-07 19:08:08,574 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 9 predicate places. [2024-11-07 19:08:08,574 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 26 transitions, 100 flow [2024-11-07 19:08:08,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 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 19:08:08,575 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:08:08,575 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:08:08,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-07 19:08:08,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:08:08,777 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:08:08,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:08:08,778 INFO L85 PathProgramCache]: Analyzing trace with hash 407958523, now seen corresponding path program 1 times [2024-11-07 19:08:08,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:08:08,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [34244580] [2024-11-07 19:08:08,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:08:08,778 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:08:08,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:08:08,780 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:08:08,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-07 19:08:08,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:08:08,836 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 19:08:08,839 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:08:08,914 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 19:08:08,914 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:08:08,914 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:08:08,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [34244580] [2024-11-07 19:08:08,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [34244580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:08:08,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:08:08,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:08:08,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218413519] [2024-11-07 19:08:08,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:08:08,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 19:08:08,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:08:08,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 19:08:08,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-07 19:08:08,926 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-07 19:08:08,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 26 transitions, 100 flow. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 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 19:08:08,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:08:08,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-07 19:08:08,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:08:09,160 INFO L124 PetriNetUnfolderBase]: 247/454 cut-off events. [2024-11-07 19:08:09,161 INFO L125 PetriNetUnfolderBase]: For 399/399 co-relation queries the response was YES. [2024-11-07 19:08:09,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1183 conditions, 454 events. 247/454 cut-off events. For 399/399 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1806 event pairs, 50 based on Foata normal form. 18/468 useless extension candidates. Maximal degree in co-relation 1170. Up to 190 conditions per place. [2024-11-07 19:08:09,165 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 30 selfloop transitions, 9 changer transitions 16/59 dead transitions. [2024-11-07 19:08:09,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 59 transitions, 316 flow [2024-11-07 19:08:09,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 19:08:09,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 19:08:09,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 110 transitions. [2024-11-07 19:08:09,170 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.541871921182266 [2024-11-07 19:08:09,171 INFO L175 Difference]: Start difference. First operand has 39 places, 26 transitions, 100 flow. Second operand 7 states and 110 transitions. [2024-11-07 19:08:09,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 59 transitions, 316 flow [2024-11-07 19:08:09,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 59 transitions, 312 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-07 19:08:09,176 INFO L231 Difference]: Finished difference. Result has 42 places, 29 transitions, 143 flow [2024-11-07 19:08:09,176 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=143, PETRI_PLACES=42, PETRI_TRANSITIONS=29} [2024-11-07 19:08:09,177 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 12 predicate places. [2024-11-07 19:08:09,177 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 29 transitions, 143 flow [2024-11-07 19:08:09,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 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 19:08:09,177 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:08:09,178 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:08:09,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-07 19:08:09,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:08:09,378 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:08:09,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:08:09,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1492998092, now seen corresponding path program 1 times [2024-11-07 19:08:09,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:08:09,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [969721980] [2024-11-07 19:08:09,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:08:09,380 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:08:09,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:08:09,382 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:08:09,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-07 19:08:09,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:08:09,434 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 19:08:09,435 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:08:09,516 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 19:08:09,516 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:08:09,517 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:08:09,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [969721980] [2024-11-07 19:08:09,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [969721980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:08:09,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:08:09,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:08:09,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923320002] [2024-11-07 19:08:09,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:08:09,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 19:08:09,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:08:09,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 19:08:09,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 19:08:09,532 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-07 19:08:09,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 29 transitions, 143 flow. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 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 19:08:09,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:08:09,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-07 19:08:09,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:08:09,830 INFO L124 PetriNetUnfolderBase]: 391/725 cut-off events. [2024-11-07 19:08:09,830 INFO L125 PetriNetUnfolderBase]: For 1146/1146 co-relation queries the response was YES. [2024-11-07 19:08:09,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2115 conditions, 725 events. 391/725 cut-off events. For 1146/1146 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3195 event pairs, 95 based on Foata normal form. 27/748 useless extension candidates. Maximal degree in co-relation 2098. Up to 264 conditions per place. [2024-11-07 19:08:09,839 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 47 selfloop transitions, 11 changer transitions 20/82 dead transitions. [2024-11-07 19:08:09,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 82 transitions, 517 flow [2024-11-07 19:08:09,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:08:09,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:08:09,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 144 transitions. [2024-11-07 19:08:09,841 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5517241379310345 [2024-11-07 19:08:09,841 INFO L175 Difference]: Start difference. First operand has 42 places, 29 transitions, 143 flow. Second operand 9 states and 144 transitions. [2024-11-07 19:08:09,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 82 transitions, 517 flow [2024-11-07 19:08:09,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 82 transitions, 478 flow, removed 17 selfloop flow, removed 3 redundant places. [2024-11-07 19:08:09,850 INFO L231 Difference]: Finished difference. Result has 52 places, 36 transitions, 236 flow [2024-11-07 19:08:09,850 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=236, PETRI_PLACES=52, PETRI_TRANSITIONS=36} [2024-11-07 19:08:09,852 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 22 predicate places. [2024-11-07 19:08:09,852 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 36 transitions, 236 flow [2024-11-07 19:08:09,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 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 19:08:09,853 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:08:09,853 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:08:09,856 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-07 19:08:10,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:08:10,054 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:08:10,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:08:10,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1610009804, now seen corresponding path program 2 times [2024-11-07 19:08:10,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:08:10,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [54379031] [2024-11-07 19:08:10,055 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:08:10,055 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:08:10,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:08:10,057 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:08:10,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-07 19:08:10,100 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 19:08:10,100 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:08:10,101 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 19:08:10,103 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:08:10,181 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 19:08:10,181 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:08:10,181 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:08:10,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [54379031] [2024-11-07 19:08:10,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [54379031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:08:10,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:08:10,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:08:10,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001622937] [2024-11-07 19:08:10,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:08:10,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 19:08:10,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:08:10,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 19:08:10,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 19:08:10,214 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-07 19:08:10,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 36 transitions, 236 flow. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 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 19:08:10,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:08:10,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-07 19:08:10,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:08:10,495 INFO L124 PetriNetUnfolderBase]: 346/655 cut-off events. [2024-11-07 19:08:10,495 INFO L125 PetriNetUnfolderBase]: For 2058/2058 co-relation queries the response was YES. [2024-11-07 19:08:10,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2189 conditions, 655 events. 346/655 cut-off events. For 2058/2058 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2872 event pairs, 88 based on Foata normal form. 45/696 useless extension candidates. Maximal degree in co-relation 2166. Up to 273 conditions per place. [2024-11-07 19:08:10,501 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 40 selfloop transitions, 12 changer transitions 30/86 dead transitions. [2024-11-07 19:08:10,501 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 86 transitions, 655 flow [2024-11-07 19:08:10,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:08:10,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:08:10,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 140 transitions. [2024-11-07 19:08:10,504 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5363984674329502 [2024-11-07 19:08:10,504 INFO L175 Difference]: Start difference. First operand has 52 places, 36 transitions, 236 flow. Second operand 9 states and 140 transitions. [2024-11-07 19:08:10,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 86 transitions, 655 flow [2024-11-07 19:08:10,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 86 transitions, 595 flow, removed 30 selfloop flow, removed 2 redundant places. [2024-11-07 19:08:10,517 INFO L231 Difference]: Finished difference. Result has 60 places, 39 transitions, 278 flow [2024-11-07 19:08:10,517 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=278, PETRI_PLACES=60, PETRI_TRANSITIONS=39} [2024-11-07 19:08:10,519 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 30 predicate places. [2024-11-07 19:08:10,519 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 39 transitions, 278 flow [2024-11-07 19:08:10,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 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 19:08:10,520 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:08:10,520 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:08:10,524 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-07 19:08:10,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:08:10,721 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:08:10,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:08:10,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1235422649, now seen corresponding path program 1 times [2024-11-07 19:08:10,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:08:10,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1458818434] [2024-11-07 19:08:10,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:08:10,722 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:08:10,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:08:10,725 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:08:10,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-07 19:08:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:08:10,771 INFO L255 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:08:10,772 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:08:10,862 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 19:08:10,862 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:08:10,862 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:08:10,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1458818434] [2024-11-07 19:08:10,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1458818434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:08:10,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:08:10,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 19:08:10,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445861259] [2024-11-07 19:08:10,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:08:10,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 19:08:10,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:08:10,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 19:08:10,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 19:08:10,875 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-07 19:08:10,875 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 39 transitions, 278 flow. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:08:10,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:08:10,875 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-07 19:08:10,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:08:11,181 INFO L124 PetriNetUnfolderBase]: 427/806 cut-off events. [2024-11-07 19:08:11,181 INFO L125 PetriNetUnfolderBase]: For 3492/3492 co-relation queries the response was YES. [2024-11-07 19:08:11,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2902 conditions, 806 events. 427/806 cut-off events. For 3492/3492 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3713 event pairs, 122 based on Foata normal form. 27/829 useless extension candidates. Maximal degree in co-relation 2874. Up to 316 conditions per place. [2024-11-07 19:08:11,188 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 51 selfloop transitions, 12 changer transitions 26/93 dead transitions. [2024-11-07 19:08:11,188 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 93 transitions, 752 flow [2024-11-07 19:08:11,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 19:08:11,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 19:08:11,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 158 transitions. [2024-11-07 19:08:11,190 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5448275862068965 [2024-11-07 19:08:11,190 INFO L175 Difference]: Start difference. First operand has 60 places, 39 transitions, 278 flow. Second operand 10 states and 158 transitions. [2024-11-07 19:08:11,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 93 transitions, 752 flow [2024-11-07 19:08:11,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 93 transitions, 718 flow, removed 11 selfloop flow, removed 4 redundant places. [2024-11-07 19:08:11,198 INFO L231 Difference]: Finished difference. Result has 68 places, 43 transitions, 345 flow [2024-11-07 19:08:11,199 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=345, PETRI_PLACES=68, PETRI_TRANSITIONS=43} [2024-11-07 19:08:11,199 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 38 predicate places. [2024-11-07 19:08:11,199 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 43 transitions, 345 flow [2024-11-07 19:08:11,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:08:11,200 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:08:11,200 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:08:11,204 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-07 19:08:11,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:08:11,401 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 19:08:11,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:08:11,401 INFO L85 PathProgramCache]: Analyzing trace with hash -14089357, now seen corresponding path program 2 times [2024-11-07 19:08:11,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:08:11,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1909888914] [2024-11-07 19:08:11,401 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:08:11,401 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:08:11,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:08:11,404 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:08:11,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-07 19:08:11,452 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 19:08:11,452 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:08:11,455 INFO L255 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 19:08:11,456 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:08:11,521 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 19:08:11,522 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:08:11,522 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:08:11,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1909888914] [2024-11-07 19:08:11,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1909888914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:08:11,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:08:11,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 19:08:11,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523827668] [2024-11-07 19:08:11,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:08:11,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 19:08:11,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:08:11,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 19:08:11,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 19:08:11,535 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-07 19:08:11,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 43 transitions, 345 flow. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:08:11,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:08:11,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-07 19:08:11,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand