./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 11:18:10,578 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 11:18:10,685 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 11:18:10,692 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 11:18:10,693 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 11:18:10,725 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 11:18:10,726 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 11:18:10,726 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 11:18:10,727 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 11:18:10,727 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 11:18:10,727 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 11:18:10,728 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 11:18:10,728 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 11:18:10,728 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 11:18:10,729 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 11:18:10,730 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 11:18:10,730 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 11:18:10,730 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 11:18:10,730 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 11:18:10,730 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 11:18:10,730 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 11:18:10,730 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 11:18:10,730 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 11:18:10,730 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 11:18:10,730 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 11:18:10,731 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 11:18:10,731 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 11:18:10,731 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 11:18:10,731 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 11:18:10,731 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 11:18:10,731 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 11:18:10,731 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 11:18:10,731 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 11:18:10,731 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 11:18:10,731 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 11:18:10,731 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 11:18:10,731 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 11:18:10,731 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 11:18:10,731 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 11:18:10,731 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 11:18:10,731 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 11:18:10,732 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 11:18:10,732 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 [2024-11-07 11:18:11,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 11:18:11,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 11:18:11,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 11:18:11,036 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 11:18:11,036 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 11:18:11,038 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2024-11-07 11:18:12,301 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 11:18:12,630 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 11:18:12,635 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2024-11-07 11:18:12,651 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8bcfbfec1/b0cf3df92b304e3cae0a193947db0304/FLAG10d051ee3 [2024-11-07 11:18:12,671 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8bcfbfec1/b0cf3df92b304e3cae0a193947db0304 [2024-11-07 11:18:12,675 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 11:18:12,676 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 11:18:12,679 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 11:18:12,680 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 11:18:12,684 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 11:18:12,685 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:18:12" (1/1) ... [2024-11-07 11:18:12,686 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d6caefa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:12, skipping insertion in model container [2024-11-07 11:18:12,687 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:18:12" (1/1) ... [2024-11-07 11:18:12,719 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 11:18:12,869 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i[1115,1128] [2024-11-07 11:18:13,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 11:18:13,039 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 11:18:13,048 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i[1115,1128] [2024-11-07 11:18:13,105 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 11:18:13,147 INFO L204 MainTranslator]: Completed translation [2024-11-07 11:18:13,148 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:13 WrapperNode [2024-11-07 11:18:13,148 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 11:18:13,149 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 11:18:13,151 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 11:18:13,151 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 11:18:13,156 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:13" (1/1) ... [2024-11-07 11:18:13,176 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:13" (1/1) ... [2024-11-07 11:18:13,201 INFO L138 Inliner]: procedures = 165, calls = 34, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 119 [2024-11-07 11:18:13,204 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 11:18:13,205 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 11:18:13,205 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 11:18:13,205 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 11:18:13,212 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:13" (1/1) ... [2024-11-07 11:18:13,213 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:13" (1/1) ... [2024-11-07 11:18:13,216 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:13" (1/1) ... [2024-11-07 11:18:13,236 INFO L175 MemorySlicer]: Split 18 memory accesses to 2 slices as follows [2, 16]. 89 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 6]. The 3 writes are split as follows [0, 3]. [2024-11-07 11:18:13,239 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:13" (1/1) ... [2024-11-07 11:18:13,241 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:13" (1/1) ... [2024-11-07 11:18:13,250 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:13" (1/1) ... [2024-11-07 11:18:13,255 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:13" (1/1) ... [2024-11-07 11:18:13,256 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:13" (1/1) ... [2024-11-07 11:18:13,260 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:13" (1/1) ... [2024-11-07 11:18:13,261 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 11:18:13,266 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 11:18:13,267 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 11:18:13,267 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 11:18:13,268 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:13" (1/1) ... [2024-11-07 11:18:13,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 11:18:13,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 11:18:13,302 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 11:18:13,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 11:18:13,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 11:18:13,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 11:18:13,330 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2024-11-07 11:18:13,330 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2024-11-07 11:18:13,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 11:18:13,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 11:18:13,330 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-07 11:18:13,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 11:18:13,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 11:18:13,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 11:18:13,330 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-07 11:18:13,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 11:18:13,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 11:18:13,332 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-07 11:18:13,456 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 11:18:13,458 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 11:18:13,680 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 11:18:13,681 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 11:18:13,830 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 11:18:13,830 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-07 11:18:13,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:18:13 BoogieIcfgContainer [2024-11-07 11:18:13,831 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 11:18:13,833 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 11:18:13,833 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 11:18:13,837 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 11:18:13,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:18:12" (1/3) ... [2024-11-07 11:18:13,839 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d6fd2c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:18:13, skipping insertion in model container [2024-11-07 11:18:13,839 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:13" (2/3) ... [2024-11-07 11:18:13,839 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d6fd2c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:18:13, skipping insertion in model container [2024-11-07 11:18:13,840 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:18:13" (3/3) ... [2024-11-07 11:18:13,841 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2024-11-07 11:18:13,853 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 11:18:13,854 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 11:18:13,854 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 11:18:13,904 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-07 11:18:13,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 34 places, 37 transitions, 78 flow [2024-11-07 11:18:13,971 INFO L124 PetriNetUnfolderBase]: 7/36 cut-off events. [2024-11-07 11:18:13,973 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 11:18:13,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 36 events. 7/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 34. Up to 2 conditions per place. [2024-11-07 11:18:13,975 INFO L82 GeneralOperation]: Start removeDead. Operand has 34 places, 37 transitions, 78 flow [2024-11-07 11:18:13,978 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 36 transitions, 75 flow [2024-11-07 11:18:13,984 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 11:18:13,997 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5cc86aa2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 11:18:13,998 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-07 11:18:14,008 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 11:18:14,008 INFO L124 PetriNetUnfolderBase]: 5/26 cut-off events. [2024-11-07 11:18:14,008 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 11:18:14,009 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:18:14,010 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:18:14,010 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-07 11:18:14,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:18:14,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1096289878, now seen corresponding path program 1 times [2024-11-07 11:18:14,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:18:14,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566379005] [2024-11-07 11:18:14,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:18:14,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:18:14,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:18:14,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:18:14,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:18:14,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566379005] [2024-11-07 11:18:14,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566379005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:18:14,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:18:14,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 11:18:14,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603762590] [2024-11-07 11:18:14,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:18:14,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:18:14,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:18:14,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:18:14,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:18:14,564 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 37 [2024-11-07 11:18:14,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 36 transitions, 75 flow. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:18:14,567 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:18:14,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 37 [2024-11-07 11:18:14,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:18:14,868 INFO L124 PetriNetUnfolderBase]: 218/450 cut-off events. [2024-11-07 11:18:14,869 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 11:18:14,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 860 conditions, 450 events. 218/450 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1932 event pairs, 20 based on Foata normal form. 37/406 useless extension candidates. Maximal degree in co-relation 851. Up to 241 conditions per place. [2024-11-07 11:18:14,876 INFO L140 encePairwiseOnDemand]: 22/37 looper letters, 47 selfloop transitions, 15 changer transitions 0/69 dead transitions. [2024-11-07 11:18:14,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 69 transitions, 265 flow [2024-11-07 11:18:14,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 11:18:14,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 11:18:14,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 119 transitions. [2024-11-07 11:18:14,892 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.536036036036036 [2024-11-07 11:18:14,895 INFO L175 Difference]: Start difference. First operand has 33 places, 36 transitions, 75 flow. Second operand 6 states and 119 transitions. [2024-11-07 11:18:14,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 69 transitions, 265 flow [2024-11-07 11:18:14,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 69 transitions, 264 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 11:18:14,903 INFO L231 Difference]: Finished difference. Result has 41 places, 44 transitions, 168 flow [2024-11-07 11:18:14,906 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=168, PETRI_PLACES=41, PETRI_TRANSITIONS=44} [2024-11-07 11:18:14,911 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 8 predicate places. [2024-11-07 11:18:14,912 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 44 transitions, 168 flow [2024-11-07 11:18:14,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:18:14,913 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:18:14,913 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:18:14,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 11:18:14,913 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-07 11:18:14,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:18:14,914 INFO L85 PathProgramCache]: Analyzing trace with hash 374721697, now seen corresponding path program 1 times [2024-11-07 11:18:14,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:18:14,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19250931] [2024-11-07 11:18:14,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:18:14,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:18:14,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:18:15,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:18:15,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:18:15,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19250931] [2024-11-07 11:18:15,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19250931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:18:15,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:18:15,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:18:15,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696416571] [2024-11-07 11:18:15,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:18:15,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:18:15,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:18:15,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:18:15,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:18:15,064 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 37 [2024-11-07 11:18:15,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 44 transitions, 168 flow. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:18:15,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:18:15,065 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 37 [2024-11-07 11:18:15,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:18:15,304 INFO L124 PetriNetUnfolderBase]: 278/559 cut-off events. [2024-11-07 11:18:15,304 INFO L125 PetriNetUnfolderBase]: For 185/187 co-relation queries the response was YES. [2024-11-07 11:18:15,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1397 conditions, 559 events. 278/559 cut-off events. For 185/187 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2448 event pairs, 60 based on Foata normal form. 20/538 useless extension candidates. Maximal degree in co-relation 1382. Up to 303 conditions per place. [2024-11-07 11:18:15,313 INFO L140 encePairwiseOnDemand]: 25/37 looper letters, 58 selfloop transitions, 25 changer transitions 0/89 dead transitions. [2024-11-07 11:18:15,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 89 transitions, 474 flow [2024-11-07 11:18:15,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 11:18:15,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 11:18:15,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 108 transitions. [2024-11-07 11:18:15,315 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4864864864864865 [2024-11-07 11:18:15,315 INFO L175 Difference]: Start difference. First operand has 41 places, 44 transitions, 168 flow. Second operand 6 states and 108 transitions. [2024-11-07 11:18:15,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 89 transitions, 474 flow [2024-11-07 11:18:15,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 89 transitions, 474 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 11:18:15,334 INFO L231 Difference]: Finished difference. Result has 51 places, 60 transitions, 366 flow [2024-11-07 11:18:15,334 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=366, PETRI_PLACES=51, PETRI_TRANSITIONS=60} [2024-11-07 11:18:15,334 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 18 predicate places. [2024-11-07 11:18:15,335 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 60 transitions, 366 flow [2024-11-07 11:18:15,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:18:15,335 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:18:15,335 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:18:15,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 11:18:15,335 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-07 11:18:15,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:18:15,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1532167700, now seen corresponding path program 1 times [2024-11-07 11:18:15,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:18:15,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430707424] [2024-11-07 11:18:15,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:18:15,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:18:15,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:18:15,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:18:15,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:18:15,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430707424] [2024-11-07 11:18:15,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430707424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:18:15,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:18:15,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 11:18:15,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427903119] [2024-11-07 11:18:15,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:18:15,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 11:18:15,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:18:15,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 11:18:15,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 11:18:15,632 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 37 [2024-11-07 11:18:15,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 60 transitions, 366 flow. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:18:15,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:18:15,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 37 [2024-11-07 11:18:15,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:18:15,996 INFO L124 PetriNetUnfolderBase]: 399/859 cut-off events. [2024-11-07 11:18:15,996 INFO L125 PetriNetUnfolderBase]: For 1246/1263 co-relation queries the response was YES. [2024-11-07 11:18:15,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2742 conditions, 859 events. 399/859 cut-off events. For 1246/1263 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 4790 event pairs, 87 based on Foata normal form. 16/819 useless extension candidates. Maximal degree in co-relation 2722. Up to 360 conditions per place. [2024-11-07 11:18:16,003 INFO L140 encePairwiseOnDemand]: 28/37 looper letters, 87 selfloop transitions, 27 changer transitions 0/127 dead transitions. [2024-11-07 11:18:16,003 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 127 transitions, 942 flow [2024-11-07 11:18:16,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 11:18:16,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 11:18:16,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 159 transitions. [2024-11-07 11:18:16,005 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6138996138996139 [2024-11-07 11:18:16,005 INFO L175 Difference]: Start difference. First operand has 51 places, 60 transitions, 366 flow. Second operand 7 states and 159 transitions. [2024-11-07 11:18:16,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 127 transitions, 942 flow [2024-11-07 11:18:16,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 127 transitions, 942 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 11:18:16,016 INFO L231 Difference]: Finished difference. Result has 60 places, 76 transitions, 588 flow [2024-11-07 11:18:16,017 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=588, PETRI_PLACES=60, PETRI_TRANSITIONS=76} [2024-11-07 11:18:16,018 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 27 predicate places. [2024-11-07 11:18:16,018 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 76 transitions, 588 flow [2024-11-07 11:18:16,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:18:16,019 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:18:16,019 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:18:16,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 11:18:16,019 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-07 11:18:16,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:18:16,020 INFO L85 PathProgramCache]: Analyzing trace with hash -178204838, now seen corresponding path program 2 times [2024-11-07 11:18:16,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:18:16,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649801166] [2024-11-07 11:18:16,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:18:16,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:18:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:18:16,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:18:16,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:18:16,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649801166] [2024-11-07 11:18:16,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649801166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:18:16,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:18:16,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 11:18:16,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993881890] [2024-11-07 11:18:16,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:18:16,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 11:18:16,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:18:16,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 11:18:16,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-07 11:18:16,576 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 37 [2024-11-07 11:18:16,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 76 transitions, 588 flow. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:18:16,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:18:16,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 37 [2024-11-07 11:18:16,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:18:17,066 INFO L124 PetriNetUnfolderBase]: 485/974 cut-off events. [2024-11-07 11:18:17,067 INFO L125 PetriNetUnfolderBase]: For 2052/2052 co-relation queries the response was YES. [2024-11-07 11:18:17,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3572 conditions, 974 events. 485/974 cut-off events. For 2052/2052 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 5063 event pairs, 125 based on Foata normal form. 1/974 useless extension candidates. Maximal degree in co-relation 3547. Up to 623 conditions per place. [2024-11-07 11:18:17,075 INFO L140 encePairwiseOnDemand]: 24/37 looper letters, 77 selfloop transitions, 67 changer transitions 0/150 dead transitions. [2024-11-07 11:18:17,076 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 150 transitions, 1398 flow [2024-11-07 11:18:17,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 11:18:17,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-07 11:18:17,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 189 transitions. [2024-11-07 11:18:17,078 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39293139293139295 [2024-11-07 11:18:17,078 INFO L175 Difference]: Start difference. First operand has 60 places, 76 transitions, 588 flow. Second operand 13 states and 189 transitions. [2024-11-07 11:18:17,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 150 transitions, 1398 flow [2024-11-07 11:18:17,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 150 transitions, 1358 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 11:18:17,095 INFO L231 Difference]: Finished difference. Result has 76 places, 116 transitions, 1098 flow [2024-11-07 11:18:17,096 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=569, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1098, PETRI_PLACES=76, PETRI_TRANSITIONS=116} [2024-11-07 11:18:17,096 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 43 predicate places. [2024-11-07 11:18:17,096 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 116 transitions, 1098 flow [2024-11-07 11:18:17,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:18:17,097 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:18:17,097 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:18:17,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 11:18:17,097 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-07 11:18:17,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:18:17,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1362561722, now seen corresponding path program 3 times [2024-11-07 11:18:17,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:18:17,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078701808] [2024-11-07 11:18:17,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:18:17,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:18:17,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:18:17,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:18:17,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:18:17,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078701808] [2024-11-07 11:18:17,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078701808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:18:17,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:18:17,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:18:17,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999160339] [2024-11-07 11:18:17,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:18:17,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 11:18:17,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:18:17,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 11:18:17,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-07 11:18:17,355 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 37 [2024-11-07 11:18:17,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 116 transitions, 1098 flow. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:18:17,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:18:17,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 37 [2024-11-07 11:18:17,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:18:17,657 INFO L124 PetriNetUnfolderBase]: 466/1016 cut-off events. [2024-11-07 11:18:17,657 INFO L125 PetriNetUnfolderBase]: For 2829/2866 co-relation queries the response was YES. [2024-11-07 11:18:17,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4059 conditions, 1016 events. 466/1016 cut-off events. For 2829/2866 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 5724 event pairs, 83 based on Foata normal form. 48/1053 useless extension candidates. Maximal degree in co-relation 4028. Up to 415 conditions per place. [2024-11-07 11:18:17,669 INFO L140 encePairwiseOnDemand]: 27/37 looper letters, 141 selfloop transitions, 25 changer transitions 0/189 dead transitions. [2024-11-07 11:18:17,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 189 transitions, 1941 flow [2024-11-07 11:18:17,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 11:18:17,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 11:18:17,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 135 transitions. [2024-11-07 11:18:17,671 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6081081081081081 [2024-11-07 11:18:17,671 INFO L175 Difference]: Start difference. First operand has 76 places, 116 transitions, 1098 flow. Second operand 6 states and 135 transitions. [2024-11-07 11:18:17,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 189 transitions, 1941 flow [2024-11-07 11:18:17,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 189 transitions, 1919 flow, removed 11 selfloop flow, removed 0 redundant places. [2024-11-07 11:18:17,695 INFO L231 Difference]: Finished difference. Result has 84 places, 125 transitions, 1204 flow [2024-11-07 11:18:17,695 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=981, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1204, PETRI_PLACES=84, PETRI_TRANSITIONS=125} [2024-11-07 11:18:17,696 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 51 predicate places. [2024-11-07 11:18:17,697 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 125 transitions, 1204 flow [2024-11-07 11:18:17,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:18:17,698 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:18:17,698 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:18:17,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 11:18:17,698 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-07 11:18:17,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:18:17,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1394856322, now seen corresponding path program 4 times [2024-11-07 11:18:17,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:18:17,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710382126] [2024-11-07 11:18:17,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:18:17,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:18:17,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:18:17,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:18:17,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:18:17,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710382126] [2024-11-07 11:18:17,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710382126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:18:17,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:18:17,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 11:18:17,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640602128] [2024-11-07 11:18:17,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:18:17,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 11:18:17,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:18:17,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 11:18:17,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 11:18:17,937 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 37 [2024-11-07 11:18:17,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 125 transitions, 1204 flow. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:18:17,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:18:17,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 37 [2024-11-07 11:18:17,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:18:18,378 INFO L124 PetriNetUnfolderBase]: 674/1469 cut-off events. [2024-11-07 11:18:18,378 INFO L125 PetriNetUnfolderBase]: For 5661/5689 co-relation queries the response was YES. [2024-11-07 11:18:18,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6676 conditions, 1469 events. 674/1469 cut-off events. For 5661/5689 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 8676 event pairs, 175 based on Foata normal form. 21/1482 useless extension candidates. Maximal degree in co-relation 6640. Up to 763 conditions per place. [2024-11-07 11:18:18,397 INFO L140 encePairwiseOnDemand]: 28/37 looper letters, 134 selfloop transitions, 45 changer transitions 0/197 dead transitions. [2024-11-07 11:18:18,397 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 197 transitions, 2105 flow [2024-11-07 11:18:18,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 11:18:18,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 11:18:18,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 166 transitions. [2024-11-07 11:18:18,398 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.640926640926641 [2024-11-07 11:18:18,399 INFO L175 Difference]: Start difference. First operand has 84 places, 125 transitions, 1204 flow. Second operand 7 states and 166 transitions. [2024-11-07 11:18:18,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 197 transitions, 2105 flow [2024-11-07 11:18:18,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 197 transitions, 2096 flow, removed 4 selfloop flow, removed 1 redundant places. [2024-11-07 11:18:18,443 INFO L231 Difference]: Finished difference. Result has 91 places, 135 transitions, 1449 flow [2024-11-07 11:18:18,444 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=1201, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1449, PETRI_PLACES=91, PETRI_TRANSITIONS=135} [2024-11-07 11:18:18,444 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 58 predicate places. [2024-11-07 11:18:18,444 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 135 transitions, 1449 flow [2024-11-07 11:18:18,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:18:18,445 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:18:18,445 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:18:18,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 11:18:18,445 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-07 11:18:18,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:18:18,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1697026510, now seen corresponding path program 5 times [2024-11-07 11:18:18,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:18:18,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641295103] [2024-11-07 11:18:18,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:18:18,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:18:18,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:18:18,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:18:18,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:18:18,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641295103] [2024-11-07 11:18:18,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641295103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:18:18,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:18:18,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 11:18:18,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243633096] [2024-11-07 11:18:18,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:18:18,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 11:18:18,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:18:18,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 11:18:18,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 11:18:18,641 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 37 [2024-11-07 11:18:18,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 135 transitions, 1449 flow. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:18:18,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:18:18,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 37 [2024-11-07 11:18:18,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:18:19,113 INFO L124 PetriNetUnfolderBase]: 835/1837 cut-off events. [2024-11-07 11:18:19,113 INFO L125 PetriNetUnfolderBase]: For 8545/8570 co-relation queries the response was YES. [2024-11-07 11:18:19,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8564 conditions, 1837 events. 835/1837 cut-off events. For 8545/8570 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 11105 event pairs, 212 based on Foata normal form. 24/1855 useless extension candidates. Maximal degree in co-relation 8525. Up to 621 conditions per place. [2024-11-07 11:18:19,129 INFO L140 encePairwiseOnDemand]: 28/37 looper letters, 162 selfloop transitions, 48 changer transitions 0/228 dead transitions. [2024-11-07 11:18:19,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 228 transitions, 2565 flow [2024-11-07 11:18:19,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 11:18:19,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 11:18:19,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 168 transitions. [2024-11-07 11:18:19,130 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6486486486486487 [2024-11-07 11:18:19,131 INFO L175 Difference]: Start difference. First operand has 91 places, 135 transitions, 1449 flow. Second operand 7 states and 168 transitions. [2024-11-07 11:18:19,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 228 transitions, 2565 flow [2024-11-07 11:18:19,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 228 transitions, 2510 flow, removed 13 selfloop flow, removed 2 redundant places. [2024-11-07 11:18:19,160 INFO L231 Difference]: Finished difference. Result has 98 places, 148 transitions, 1728 flow [2024-11-07 11:18:19,160 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=1394, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1728, PETRI_PLACES=98, PETRI_TRANSITIONS=148} [2024-11-07 11:18:19,161 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 65 predicate places. [2024-11-07 11:18:19,161 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 148 transitions, 1728 flow [2024-11-07 11:18:19,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:18:19,161 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:18:19,161 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:18:19,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 11:18:19,161 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-07 11:18:19,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:18:19,162 INFO L85 PathProgramCache]: Analyzing trace with hash -369696630, now seen corresponding path program 6 times [2024-11-07 11:18:19,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:18:19,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408561381] [2024-11-07 11:18:19,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:18:19,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:18:19,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:18:19,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:18:19,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:18:19,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408561381] [2024-11-07 11:18:19,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408561381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:18:19,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:18:19,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 11:18:19,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465752086] [2024-11-07 11:18:19,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:18:19,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 11:18:19,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:18:19,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 11:18:19,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-07 11:18:19,572 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 37 [2024-11-07 11:18:19,573 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 148 transitions, 1728 flow. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:18:19,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:18:19,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 37 [2024-11-07 11:18:19,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:18:20,034 INFO L124 PetriNetUnfolderBase]: 927/1931 cut-off events. [2024-11-07 11:18:20,034 INFO L125 PetriNetUnfolderBase]: For 10042/10125 co-relation queries the response was YES. [2024-11-07 11:18:20,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9295 conditions, 1931 events. 927/1931 cut-off events. For 10042/10125 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 11197 event pairs, 232 based on Foata normal form. 80/1995 useless extension candidates. Maximal degree in co-relation 9253. Up to 1355 conditions per place. [2024-11-07 11:18:20,055 INFO L140 encePairwiseOnDemand]: 23/37 looper letters, 111 selfloop transitions, 69 changer transitions 0/193 dead transitions. [2024-11-07 11:18:20,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 193 transitions, 2443 flow [2024-11-07 11:18:20,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 11:18:20,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 11:18:20,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 150 transitions. [2024-11-07 11:18:20,056 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45045045045045046 [2024-11-07 11:18:20,056 INFO L175 Difference]: Start difference. First operand has 98 places, 148 transitions, 1728 flow. Second operand 9 states and 150 transitions. [2024-11-07 11:18:20,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 193 transitions, 2443 flow [2024-11-07 11:18:20,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 193 transitions, 2317 flow, removed 34 selfloop flow, removed 3 redundant places. [2024-11-07 11:18:20,091 INFO L231 Difference]: Finished difference. Result has 107 places, 165 transitions, 2034 flow [2024-11-07 11:18:20,092 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=1614, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2034, PETRI_PLACES=107, PETRI_TRANSITIONS=165} [2024-11-07 11:18:20,092 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 74 predicate places. [2024-11-07 11:18:20,092 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 165 transitions, 2034 flow [2024-11-07 11:18:20,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:18:20,093 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:18:20,093 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:18:20,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 11:18:20,093 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-07 11:18:20,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:18:20,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1428128358, now seen corresponding path program 7 times [2024-11-07 11:18:20,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:18:20,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326078380] [2024-11-07 11:18:20,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:18:20,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:18:20,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:18:20,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:18:20,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:18:20,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326078380] [2024-11-07 11:18:20,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326078380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:18:20,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:18:20,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 11:18:20,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229986069] [2024-11-07 11:18:20,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:18:20,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 11:18:20,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:18:20,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 11:18:20,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-07 11:18:20,289 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 37 [2024-11-07 11:18:20,289 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 165 transitions, 2034 flow. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:18:20,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:18:20,290 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 37 [2024-11-07 11:18:20,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:18:20,661 INFO L124 PetriNetUnfolderBase]: 715/1613 cut-off events. [2024-11-07 11:18:20,662 INFO L125 PetriNetUnfolderBase]: For 8287/8360 co-relation queries the response was YES. [2024-11-07 11:18:20,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7831 conditions, 1613 events. 715/1613 cut-off events. For 8287/8360 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 9931 event pairs, 62 based on Foata normal form. 88/1687 useless extension candidates. Maximal degree in co-relation 7785. Up to 631 conditions per place. [2024-11-07 11:18:20,677 INFO L140 encePairwiseOnDemand]: 27/37 looper letters, 141 selfloop transitions, 67 changer transitions 0/230 dead transitions. [2024-11-07 11:18:20,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 230 transitions, 2859 flow [2024-11-07 11:18:20,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 11:18:20,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 11:18:20,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 130 transitions. [2024-11-07 11:18:20,679 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5855855855855856 [2024-11-07 11:18:20,679 INFO L175 Difference]: Start difference. First operand has 107 places, 165 transitions, 2034 flow. Second operand 6 states and 130 transitions. [2024-11-07 11:18:20,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 230 transitions, 2859 flow [2024-11-07 11:18:20,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 230 transitions, 2675 flow, removed 39 selfloop flow, removed 7 redundant places. [2024-11-07 11:18:20,709 INFO L231 Difference]: Finished difference. Result has 107 places, 164 transitions, 1937 flow [2024-11-07 11:18:20,710 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=1406, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1937, PETRI_PLACES=107, PETRI_TRANSITIONS=164} [2024-11-07 11:18:20,710 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 74 predicate places. [2024-11-07 11:18:20,710 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 164 transitions, 1937 flow [2024-11-07 11:18:20,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:18:20,711 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:18:20,711 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:18:20,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 11:18:20,711 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-07 11:18:20,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:18:20,711 INFO L85 PathProgramCache]: Analyzing trace with hash 307488961, now seen corresponding path program 1 times [2024-11-07 11:18:20,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:18:20,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49886554] [2024-11-07 11:18:20,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:18:20,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:18:20,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:18:21,072 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:18:21,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:18:21,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49886554] [2024-11-07 11:18:21,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49886554] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 11:18:21,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [624752661] [2024-11-07 11:18:21,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:18:21,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 11:18:21,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 11:18:21,076 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 11:18:21,078 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 11:18:21,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:18:21,177 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-07 11:18:21,182 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 11:18:21,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2024-11-07 11:18:21,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-07 11:18:21,559 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:18:21,559 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 11:18:21,780 INFO L349 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2024-11-07 11:18:21,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 1 [2024-11-07 11:18:21,782 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:18:21,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [624752661] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-07 11:18:21,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-07 11:18:21,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9, 8] total 21 [2024-11-07 11:18:21,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987747615] [2024-11-07 11:18:21,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:18:21,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 11:18:21,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:18:21,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 11:18:21,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2024-11-07 11:18:21,807 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 37 [2024-11-07 11:18:21,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 164 transitions, 1937 flow. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:18:21,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:18:21,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 37 [2024-11-07 11:18:21,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:18:22,433 INFO L124 PetriNetUnfolderBase]: 1155/2496 cut-off events. [2024-11-07 11:18:22,434 INFO L125 PetriNetUnfolderBase]: For 13498/13548 co-relation queries the response was YES. [2024-11-07 11:18:22,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12922 conditions, 2496 events. 1155/2496 cut-off events. For 13498/13548 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 16116 event pairs, 88 based on Foata normal form. 27/2514 useless extension candidates. Maximal degree in co-relation 12875. Up to 827 conditions per place. [2024-11-07 11:18:22,459 INFO L140 encePairwiseOnDemand]: 27/37 looper letters, 145 selfloop transitions, 126 changer transitions 0/285 dead transitions. [2024-11-07 11:18:22,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 285 transitions, 3748 flow [2024-11-07 11:18:22,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 11:18:22,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 11:18:22,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 132 transitions. [2024-11-07 11:18:22,461 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5096525096525096 [2024-11-07 11:18:22,461 INFO L175 Difference]: Start difference. First operand has 107 places, 164 transitions, 1937 flow. Second operand 7 states and 132 transitions. [2024-11-07 11:18:22,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 285 transitions, 3748 flow [2024-11-07 11:18:22,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 285 transitions, 3596 flow, removed 71 selfloop flow, removed 2 redundant places. [2024-11-07 11:18:22,509 INFO L231 Difference]: Finished difference. Result has 115 places, 224 transitions, 3013 flow [2024-11-07 11:18:22,509 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=1871, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3013, PETRI_PLACES=115, PETRI_TRANSITIONS=224} [2024-11-07 11:18:22,510 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 82 predicate places. [2024-11-07 11:18:22,510 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 224 transitions, 3013 flow [2024-11-07 11:18:22,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:18:22,511 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:18:22,511 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:18:22,529 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 11:18:22,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-07 11:18:22,712 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-07 11:18:22,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:18:22,712 INFO L85 PathProgramCache]: Analyzing trace with hash 555639181, now seen corresponding path program 2 times [2024-11-07 11:18:22,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:18:22,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569847147] [2024-11-07 11:18:22,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:18:22,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:18:22,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:18:23,168 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:18:23,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:18:23,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569847147] [2024-11-07 11:18:23,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569847147] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 11:18:23,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124437735] [2024-11-07 11:18:23,169 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 11:18:23,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 11:18:23,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 11:18:23,171 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 11:18:23,175 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 11:18:23,261 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 11:18:23,261 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 11:18:23,265 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 11:18:23,267 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 11:18:23,371 INFO L349 Elim1Store]: treesize reduction 18, result has 60.9 percent of original size [2024-11-07 11:18:23,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 43 [2024-11-07 11:18:23,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-07 11:18:23,530 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 11:18:23,530 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 11:18:23,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124437735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:18:23,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 11:18:23,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 15 [2024-11-07 11:18:23,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849043124] [2024-11-07 11:18:23,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:18:23,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:18:23,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:18:23,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:18:23,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-11-07 11:18:23,549 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 37 [2024-11-07 11:18:23,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 224 transitions, 3013 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:18:23,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:18:23,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 37 [2024-11-07 11:18:23,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:18:24,021 INFO L124 PetriNetUnfolderBase]: 1095/2371 cut-off events. [2024-11-07 11:18:24,022 INFO L125 PetriNetUnfolderBase]: For 16593/16636 co-relation queries the response was YES. [2024-11-07 11:18:24,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13368 conditions, 2371 events. 1095/2371 cut-off events. For 16593/16636 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 15107 event pairs, 141 based on Foata normal form. 61/2425 useless extension candidates. Maximal degree in co-relation 13318. Up to 964 conditions per place. [2024-11-07 11:18:24,052 INFO L140 encePairwiseOnDemand]: 29/37 looper letters, 128 selfloop transitions, 122 changer transitions 0/263 dead transitions. [2024-11-07 11:18:24,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 263 transitions, 3839 flow [2024-11-07 11:18:24,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 11:18:24,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 11:18:24,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 91 transitions. [2024-11-07 11:18:24,054 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4918918918918919 [2024-11-07 11:18:24,055 INFO L175 Difference]: Start difference. First operand has 115 places, 224 transitions, 3013 flow. Second operand 5 states and 91 transitions. [2024-11-07 11:18:24,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 263 transitions, 3839 flow [2024-11-07 11:18:24,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 263 transitions, 3759 flow, removed 24 selfloop flow, removed 2 redundant places. [2024-11-07 11:18:24,110 INFO L231 Difference]: Finished difference. Result has 115 places, 222 transitions, 3167 flow [2024-11-07 11:18:24,110 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=2923, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3167, PETRI_PLACES=115, PETRI_TRANSITIONS=222} [2024-11-07 11:18:24,111 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 82 predicate places. [2024-11-07 11:18:24,111 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 222 transitions, 3167 flow [2024-11-07 11:18:24,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:18:24,111 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:18:24,111 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:18:24,130 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 11:18:24,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 11:18:24,312 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-07 11:18:24,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:18:24,313 INFO L85 PathProgramCache]: Analyzing trace with hash 2123911676, now seen corresponding path program 1 times [2024-11-07 11:18:24,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:18:24,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183423041] [2024-11-07 11:18:24,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:18:24,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:18:24,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:18:24,408 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:18:24,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:18:24,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183423041] [2024-11-07 11:18:24,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183423041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:18:24,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:18:24,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 11:18:24,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625789272] [2024-11-07 11:18:24,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:18:24,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:18:24,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:18:24,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:18:24,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:18:24,412 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 37 [2024-11-07 11:18:24,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 222 transitions, 3167 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:18:24,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:18:24,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 37 [2024-11-07 11:18:24,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:18:24,812 INFO L124 PetriNetUnfolderBase]: 1028/2196 cut-off events. [2024-11-07 11:18:24,812 INFO L125 PetriNetUnfolderBase]: For 17235/17329 co-relation queries the response was YES. [2024-11-07 11:18:24,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12843 conditions, 2196 events. 1028/2196 cut-off events. For 17235/17329 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 13230 event pairs, 270 based on Foata normal form. 9/2180 useless extension candidates. Maximal degree in co-relation 12793. Up to 1873 conditions per place. [2024-11-07 11:18:24,832 INFO L140 encePairwiseOnDemand]: 31/37 looper letters, 158 selfloop transitions, 8 changer transitions 22/197 dead transitions. [2024-11-07 11:18:24,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 197 transitions, 3029 flow [2024-11-07 11:18:24,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 11:18:24,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 11:18:24,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 95 transitions. [2024-11-07 11:18:24,833 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5135135135135135 [2024-11-07 11:18:24,833 INFO L175 Difference]: Start difference. First operand has 115 places, 222 transitions, 3167 flow. Second operand 5 states and 95 transitions. [2024-11-07 11:18:24,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 197 transitions, 3029 flow [2024-11-07 11:18:24,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 197 transitions, 2824 flow, removed 34 selfloop flow, removed 5 redundant places. [2024-11-07 11:18:24,872 INFO L231 Difference]: Finished difference. Result has 116 places, 174 transitions, 2225 flow [2024-11-07 11:18:24,872 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=2406, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2225, PETRI_PLACES=116, PETRI_TRANSITIONS=174} [2024-11-07 11:18:24,872 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 83 predicate places. [2024-11-07 11:18:24,872 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 174 transitions, 2225 flow [2024-11-07 11:18:24,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:18:24,873 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:18:24,873 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:18:24,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 11:18:24,873 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-07 11:18:24,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:18:24,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1655239682, now seen corresponding path program 1 times [2024-11-07 11:18:24,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:18:24,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140019161] [2024-11-07 11:18:24,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:18:24,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:18:24,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:18:25,189 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 11:18:25,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:18:25,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140019161] [2024-11-07 11:18:25,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140019161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:18:25,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:18:25,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 11:18:25,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684624647] [2024-11-07 11:18:25,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:18:25,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 11:18:25,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:18:25,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 11:18:25,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-07 11:18:25,206 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 37 [2024-11-07 11:18:25,206 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 174 transitions, 2225 flow. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:18:25,206 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:18:25,206 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 37 [2024-11-07 11:18:25,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:18:25,692 INFO L124 PetriNetUnfolderBase]: 1108/2269 cut-off events. [2024-11-07 11:18:25,693 INFO L125 PetriNetUnfolderBase]: For 14874/14936 co-relation queries the response was YES. [2024-11-07 11:18:25,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12263 conditions, 2269 events. 1108/2269 cut-off events. For 14874/14936 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 13363 event pairs, 104 based on Foata normal form. 51/2319 useless extension candidates. Maximal degree in co-relation 12212. Up to 963 conditions per place. [2024-11-07 11:18:25,713 INFO L140 encePairwiseOnDemand]: 28/37 looper letters, 244 selfloop transitions, 27 changer transitions 0/276 dead transitions. [2024-11-07 11:18:25,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 276 transitions, 3881 flow [2024-11-07 11:18:25,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 11:18:25,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 11:18:25,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 103 transitions. [2024-11-07 11:18:25,715 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46396396396396394 [2024-11-07 11:18:25,715 INFO L175 Difference]: Start difference. First operand has 116 places, 174 transitions, 2225 flow. Second operand 6 states and 103 transitions. [2024-11-07 11:18:25,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 276 transitions, 3881 flow [2024-11-07 11:18:25,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 276 transitions, 3734 flow, removed 31 selfloop flow, removed 17 redundant places. [2024-11-07 11:18:25,751 INFO L231 Difference]: Finished difference. Result has 99 places, 181 transitions, 2265 flow [2024-11-07 11:18:25,752 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=2122, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2265, PETRI_PLACES=99, PETRI_TRANSITIONS=181} [2024-11-07 11:18:25,752 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 66 predicate places. [2024-11-07 11:18:25,753 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 181 transitions, 2265 flow [2024-11-07 11:18:25,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:18:25,753 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:18:25,753 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:18:25,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 11:18:25,753 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-07 11:18:25,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:18:25,754 INFO L85 PathProgramCache]: Analyzing trace with hash 799663309, now seen corresponding path program 1 times [2024-11-07 11:18:25,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:18:25,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73296369] [2024-11-07 11:18:25,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:18:25,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:18:25,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:18:26,064 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:18:26,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:18:26,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73296369] [2024-11-07 11:18:26,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73296369] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 11:18:26,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589135081] [2024-11-07 11:18:26,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:18:26,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 11:18:26,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 11:18:26,069 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 11:18:26,071 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 11:18:26,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:18:26,166 INFO L255 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-07 11:18:26,169 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 11:18:26,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-07 11:18:26,427 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:18:26,428 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 11:18:26,723 INFO L349 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2024-11-07 11:18:26,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 55 [2024-11-07 11:18:26,770 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:18:26,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589135081] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 11:18:26,771 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 11:18:26,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 26 [2024-11-07 11:18:26,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948827229] [2024-11-07 11:18:26,771 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 11:18:26,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-07 11:18:26,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:18:26,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-07 11:18:26,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=530, Unknown=0, NotChecked=0, Total=650 [2024-11-07 11:18:26,790 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 37 [2024-11-07 11:18:26,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 181 transitions, 2265 flow. Second operand has 26 states, 26 states have (on average 9.5) internal successors, (247), 26 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:18:26,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:18:26,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 37 [2024-11-07 11:18:26,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:18:28,594 INFO L124 PetriNetUnfolderBase]: 1695/3502 cut-off events. [2024-11-07 11:18:28,595 INFO L125 PetriNetUnfolderBase]: For 24884/24988 co-relation queries the response was YES. [2024-11-07 11:18:28,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19871 conditions, 3502 events. 1695/3502 cut-off events. For 24884/24988 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 22374 event pairs, 171 based on Foata normal form. 114/3615 useless extension candidates. Maximal degree in co-relation 19829. Up to 1053 conditions per place. [2024-11-07 11:18:28,621 INFO L140 encePairwiseOnDemand]: 22/37 looper letters, 236 selfloop transitions, 282 changer transitions 17/540 dead transitions. [2024-11-07 11:18:28,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 540 transitions, 6950 flow [2024-11-07 11:18:28,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-07 11:18:28,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2024-11-07 11:18:28,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 490 transitions. [2024-11-07 11:18:28,627 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38950715421303655 [2024-11-07 11:18:28,628 INFO L175 Difference]: Start difference. First operand has 99 places, 181 transitions, 2265 flow. Second operand 34 states and 490 transitions. [2024-11-07 11:18:28,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 540 transitions, 6950 flow [2024-11-07 11:18:28,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 540 transitions, 6837 flow, removed 7 selfloop flow, removed 2 redundant places. [2024-11-07 11:18:28,679 INFO L231 Difference]: Finished difference. Result has 152 places, 339 transitions, 5227 flow [2024-11-07 11:18:28,679 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=2247, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=124, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=5227, PETRI_PLACES=152, PETRI_TRANSITIONS=339} [2024-11-07 11:18:28,680 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 119 predicate places. [2024-11-07 11:18:28,680 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 339 transitions, 5227 flow [2024-11-07 11:18:28,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.5) internal successors, (247), 26 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:18:28,681 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:18:28,681 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:18:28,698 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 11:18:28,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 11:18:28,885 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-07 11:18:28,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:18:28,886 INFO L85 PathProgramCache]: Analyzing trace with hash 2125400354, now seen corresponding path program 1 times [2024-11-07 11:18:28,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:18:28,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724011192] [2024-11-07 11:18:28,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:18:28,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:18:28,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:18:29,150 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:18:29,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:18:29,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724011192] [2024-11-07 11:18:29,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724011192] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 11:18:29,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [682840012] [2024-11-07 11:18:29,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:18:29,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 11:18:29,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 11:18:29,153 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 11:18:29,154 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 11:18:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:18:29,284 INFO L255 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-07 11:18:29,287 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 11:18:29,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-07 11:18:29,393 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:18:29,394 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 11:18:29,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2024-11-07 11:18:29,446 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:18:29,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [682840012] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 11:18:29,447 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 11:18:29,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 14 [2024-11-07 11:18:29,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746706428] [2024-11-07 11:18:29,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 11:18:29,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 11:18:29,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:18:29,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 11:18:29,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-07 11:18:29,472 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 37 [2024-11-07 11:18:29,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 339 transitions, 5227 flow. Second operand has 14 states, 14 states have (on average 15.357142857142858) internal successors, (215), 14 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:18:29,473 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:18:29,473 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 37 [2024-11-07 11:18:29,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:18:30,084 INFO L124 PetriNetUnfolderBase]: 422/1095 cut-off events. [2024-11-07 11:18:30,084 INFO L125 PetriNetUnfolderBase]: For 18182/18254 co-relation queries the response was YES. [2024-11-07 11:18:30,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8124 conditions, 1095 events. 422/1095 cut-off events. For 18182/18254 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 6209 event pairs, 35 based on Foata normal form. 125/1212 useless extension candidates. Maximal degree in co-relation 8069. Up to 344 conditions per place. [2024-11-07 11:18:30,094 INFO L140 encePairwiseOnDemand]: 27/37 looper letters, 0 selfloop transitions, 0 changer transitions 279/279 dead transitions. [2024-11-07 11:18:30,094 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 279 transitions, 4950 flow [2024-11-07 11:18:30,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-07 11:18:30,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-07 11:18:30,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 250 transitions. [2024-11-07 11:18:30,096 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4222972972972973 [2024-11-07 11:18:30,096 INFO L175 Difference]: Start difference. First operand has 152 places, 339 transitions, 5227 flow. Second operand 16 states and 250 transitions. [2024-11-07 11:18:30,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 279 transitions, 4950 flow [2024-11-07 11:18:30,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 279 transitions, 4201 flow, removed 149 selfloop flow, removed 19 redundant places. [2024-11-07 11:18:30,148 INFO L231 Difference]: Finished difference. Result has 134 places, 0 transitions, 0 flow [2024-11-07 11:18:30,148 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=3223, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=0, PETRI_PLACES=134, PETRI_TRANSITIONS=0} [2024-11-07 11:18:30,149 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 101 predicate places. [2024-11-07 11:18:30,150 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 0 transitions, 0 flow [2024-11-07 11:18:30,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 15.357142857142858) internal successors, (215), 14 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:18:30,152 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2024-11-07 11:18:30,153 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-11-07 11:18:30,153 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2024-11-07 11:18:30,153 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2024-11-07 11:18:30,153 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-11-07 11:18:30,171 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 11:18:30,354 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,SelfDestructingSolverStorable14 [2024-11-07 11:18:30,354 INFO L407 BasicCegarLoop]: Path program histogram: [7, 2, 1, 1, 1, 1, 1, 1] [2024-11-07 11:18:30,361 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-07 11:18:30,361 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 11:18:30,366 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 11:18:30 BasicIcfg [2024-11-07 11:18:30,366 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 11:18:30,367 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 11:18:30,367 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 11:18:30,367 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 11:18:30,367 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:18:13" (3/4) ... [2024-11-07 11:18:30,369 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-07 11:18:30,371 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure worker [2024-11-07 11:18:30,374 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2024-11-07 11:18:30,374 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-07 11:18:30,374 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-07 11:18:30,374 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-07 11:18:30,448 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-07 11:18:30,449 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-07 11:18:30,449 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 11:18:30,450 INFO L158 Benchmark]: Toolchain (without parser) took 17773.91ms. Allocated memory was 100.7MB in the beginning and 302.0MB in the end (delta: 201.3MB). Free memory was 75.3MB in the beginning and 78.3MB in the end (delta: -3.1MB). Peak memory consumption was 195.5MB. Max. memory is 16.1GB. [2024-11-07 11:18:30,450 INFO L158 Benchmark]: CDTParser took 1.35ms. Allocated memory is still 83.9MB. Free memory is still 48.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 11:18:30,451 INFO L158 Benchmark]: CACSL2BoogieTranslator took 469.25ms. Allocated memory is still 100.7MB. Free memory was 75.1MB in the beginning and 55.1MB in the end (delta: 20.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 11:18:30,451 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.05ms. Allocated memory is still 100.7MB. Free memory was 55.1MB in the beginning and 53.1MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 11:18:30,451 INFO L158 Benchmark]: Boogie Preprocessor took 56.78ms. Allocated memory is still 100.7MB. Free memory was 53.1MB in the beginning and 51.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 11:18:30,452 INFO L158 Benchmark]: RCFGBuilder took 564.31ms. Allocated memory is still 100.7MB. Free memory was 51.1MB in the beginning and 58.0MB in the end (delta: -6.9MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2024-11-07 11:18:30,452 INFO L158 Benchmark]: TraceAbstraction took 16532.75ms. Allocated memory was 100.7MB in the beginning and 302.0MB in the end (delta: 201.3MB). Free memory was 57.5MB in the beginning and 81.7MB in the end (delta: -24.1MB). Peak memory consumption was 174.4MB. Max. memory is 16.1GB. [2024-11-07 11:18:30,452 INFO L158 Benchmark]: Witness Printer took 82.59ms. Allocated memory is still 302.0MB. Free memory was 81.7MB in the beginning and 78.3MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 11:18:30,454 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.35ms. Allocated memory is still 83.9MB. Free memory is still 48.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 469.25ms. Allocated memory is still 100.7MB. Free memory was 75.1MB in the beginning and 55.1MB in the end (delta: 20.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.05ms. Allocated memory is still 100.7MB. Free memory was 55.1MB in the beginning and 53.1MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.78ms. Allocated memory is still 100.7MB. Free memory was 53.1MB in the beginning and 51.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 564.31ms. Allocated memory is still 100.7MB. Free memory was 51.1MB in the beginning and 58.0MB in the end (delta: -6.9MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. * TraceAbstraction took 16532.75ms. Allocated memory was 100.7MB in the beginning and 302.0MB in the end (delta: 201.3MB). Free memory was 57.5MB in the beginning and 81.7MB in the end (delta: -24.1MB). Peak memory consumption was 174.4MB. Max. memory is 16.1GB. * Witness Printer took 82.59ms. Allocated memory is still 302.0MB. Free memory was 81.7MB in the beginning and 78.3MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 54 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 16.4s, OverallIterations: 15, TraceHistogramMax: 2, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 8.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1174 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1123 mSDsluCounter, 272 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 212 mSDsCounter, 96 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3694 IncrementalHoareTripleChecker+Invalid, 3790 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 96 mSolverCounterUnsat, 60 mSDtfsCounter, 3694 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 381 GetRequests, 191 SyntacticMatches, 2 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1042 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5227occurred in iteration=14, InterpolantAutomatonStates: 140, 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, 0.3s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 363 NumberOfCodeBlocks, 354 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 419 ConstructedInterpolants, 5 QuantifiedInterpolants, 3268 SizeOfPredicates, 53 NumberOfNonLiveVariables, 679 ConjunctsInSsa, 97 ConjunctsInUnsatCore, 22 InterpolantComputations, 13 PerfectInterpolantSequences, 39/64 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-07 11:18:30,482 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE