/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc /storage/repos/CAV22/benchmarks/AutomizerCInline.xml -i /storage/repos/CAV22/benchmarks/increased_bounds/pthread-wmm_mix036_pso.opt_tso.opt_bound2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-19404b3-m [2023-08-03 23:38:09,350 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-03 23:38:09,395 INFO L114 SettingsManager]: Loading settings from /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-03 23:38:09,399 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-03 23:38:09,399 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-08-03 23:38:09,400 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2023-08-03 23:38:09,400 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-03 23:38:09,418 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-03 23:38:09,419 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-03 23:38:09,419 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-03 23:38:09,420 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-03 23:38:09,420 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-03 23:38:09,420 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-03 23:38:09,421 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-03 23:38:09,421 INFO L153 SettingsManager]: * Use SBE=true [2023-08-03 23:38:09,421 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-03 23:38:09,422 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-03 23:38:09,422 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-03 23:38:09,422 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-03 23:38:09,423 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-03 23:38:09,423 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-03 23:38:09,423 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-03 23:38:09,424 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-03 23:38:09,424 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-03 23:38:09,424 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-03 23:38:09,425 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-03 23:38:09,425 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-03 23:38:09,425 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-03 23:38:09,426 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-03 23:38:09,426 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-03 23:38:09,426 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 23:38:09,426 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-03 23:38:09,427 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-03 23:38:09,427 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-03 23:38:09,427 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-03 23:38:09,428 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-03 23:38:09,428 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-03 23:38:09,428 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-03 23:38:09,428 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-03 23:38:09,429 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-03 23:38:09,429 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-03 23:38:09,435 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST [2023-08-03 23:38:09,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-03 23:38:09,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-03 23:38:09,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-03 23:38:09,705 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-03 23:38:09,705 INFO L274 PluginConnector]: CDTParser initialized [2023-08-03 23:38:09,706 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/CAV22/benchmarks/increased_bounds/pthread-wmm_mix036_pso.opt_tso.opt_bound2.i [2023-08-03 23:38:10,881 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-03 23:38:11,144 INFO L384 CDTParser]: Found 1 translation units. [2023-08-03 23:38:11,145 INFO L180 CDTParser]: Scanning /storage/repos/CAV22/benchmarks/increased_bounds/pthread-wmm_mix036_pso.opt_tso.opt_bound2.i [2023-08-03 23:38:11,162 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f429e060/e7e68cc10c594c459f7a520f4496780f/FLAG8d65b9316 [2023-08-03 23:38:11,173 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f429e060/e7e68cc10c594c459f7a520f4496780f [2023-08-03 23:38:11,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-03 23:38:11,177 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-03 23:38:11,178 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-03 23:38:11,178 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-03 23:38:11,184 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-03 23:38:11,185 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 11:38:11" (1/1) ... [2023-08-03 23:38:11,185 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@275e6ba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 11:38:11, skipping insertion in model container [2023-08-03 23:38:11,186 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 11:38:11" (1/1) ... [2023-08-03 23:38:11,229 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-03 23:38:11,372 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/increased_bounds/pthread-wmm_mix036_pso.opt_tso.opt_bound2.i[956,969] [2023-08-03 23:38:11,598 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 23:38:11,607 INFO L201 MainTranslator]: Completed pre-run [2023-08-03 23:38:11,618 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/increased_bounds/pthread-wmm_mix036_pso.opt_tso.opt_bound2.i[956,969] [2023-08-03 23:38:11,634 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-03 23:38:11,636 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-03 23:38:11,672 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 23:38:11,698 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-03 23:38:11,698 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-03 23:38:11,704 INFO L206 MainTranslator]: Completed translation [2023-08-03 23:38:11,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 11:38:11 WrapperNode [2023-08-03 23:38:11,706 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-03 23:38:11,708 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-03 23:38:11,708 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-03 23:38:11,708 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-03 23:38:11,714 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 11:38:11" (1/1) ... [2023-08-03 23:38:11,744 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 11:38:11" (1/1) ... [2023-08-03 23:38:11,785 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 185 [2023-08-03 23:38:11,785 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-03 23:38:11,786 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-03 23:38:11,786 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-03 23:38:11,786 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-03 23:38:11,794 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 11:38:11" (1/1) ... [2023-08-03 23:38:11,794 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 11:38:11" (1/1) ... [2023-08-03 23:38:11,798 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 11:38:11" (1/1) ... [2023-08-03 23:38:11,799 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 11:38:11" (1/1) ... [2023-08-03 23:38:11,806 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 11:38:11" (1/1) ... [2023-08-03 23:38:11,809 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 11:38:11" (1/1) ... [2023-08-03 23:38:11,811 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 11:38:11" (1/1) ... [2023-08-03 23:38:11,813 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 11:38:11" (1/1) ... [2023-08-03 23:38:11,816 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-03 23:38:11,817 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-03 23:38:11,817 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-03 23:38:11,817 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-03 23:38:11,817 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 11:38:11" (1/1) ... [2023-08-03 23:38:11,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 23:38:11,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 23:38:11,878 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-03 23:38:11,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-03 23:38:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-03 23:38:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-03 23:38:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-03 23:38:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-03 23:38:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-03 23:38:11,920 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-03 23:38:11,920 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-03 23:38:11,920 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-03 23:38:11,920 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-03 23:38:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-03 23:38:11,921 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-03 23:38:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-08-03 23:38:11,921 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-08-03 23:38:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-03 23:38:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-03 23:38:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-03 23:38:11,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-03 23:38:11,923 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-03 23:38:12,075 INFO L236 CfgBuilder]: Building ICFG [2023-08-03 23:38:12,077 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-03 23:38:12,327 INFO L277 CfgBuilder]: Performing block encoding [2023-08-03 23:38:12,439 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-03 23:38:12,439 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-03 23:38:12,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 11:38:12 BoogieIcfgContainer [2023-08-03 23:38:12,442 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-03 23:38:12,446 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-03 23:38:12,446 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-03 23:38:12,449 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-03 23:38:12,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.08 11:38:11" (1/3) ... [2023-08-03 23:38:12,449 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5548f1ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 11:38:12, skipping insertion in model container [2023-08-03 23:38:12,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 11:38:11" (2/3) ... [2023-08-03 23:38:12,450 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5548f1ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 11:38:12, skipping insertion in model container [2023-08-03 23:38:12,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 11:38:12" (3/3) ... [2023-08-03 23:38:12,451 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-wmm_mix036_pso.opt_tso.opt_bound2.i [2023-08-03 23:38:12,457 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-03 23:38:12,467 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-03 23:38:12,467 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-03 23:38:12,467 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-03 23:38:12,536 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-03 23:38:12,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 159 transitions, 338 flow [2023-08-03 23:38:12,834 INFO L124 PetriNetUnfolderBase]: 62/943 cut-off events. [2023-08-03 23:38:12,834 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 23:38:12,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 993 conditions, 943 events. 62/943 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5871 event pairs, 0 based on Foata normal form. 0/827 useless extension candidates. Maximal degree in co-relation 548. Up to 32 conditions per place. [2023-08-03 23:38:12,842 INFO L82 GeneralOperation]: Start removeDead. Operand has 162 places, 159 transitions, 338 flow [2023-08-03 23:38:12,851 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 128 transitions, 276 flow [2023-08-03 23:38:12,854 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 23:38:12,873 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 128 transitions, 276 flow [2023-08-03 23:38:12,875 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 128 transitions, 276 flow [2023-08-03 23:38:12,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 128 transitions, 276 flow [2023-08-03 23:38:12,932 INFO L124 PetriNetUnfolderBase]: 14/447 cut-off events. [2023-08-03 23:38:12,932 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 23:38:12,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 497 conditions, 447 events. 14/447 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2074 event pairs, 0 based on Foata normal form. 0/411 useless extension candidates. Maximal degree in co-relation 300. Up to 16 conditions per place. [2023-08-03 23:38:12,955 INFO L119 LiptonReduction]: Number of co-enabled transitions 2216 [2023-08-03 23:38:16,566 INFO L134 LiptonReduction]: Checked pairs total: 4360 [2023-08-03 23:38:16,567 INFO L136 LiptonReduction]: Total number of compositions: 102 [2023-08-03 23:38:16,579 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-03 23:38:16,584 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5201ea22, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 23:38:16,584 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-03 23:38:16,588 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 23:38:16,589 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2023-08-03 23:38:16,589 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 23:38:16,589 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 23:38:16,589 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-03 23:38:16,590 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-03 23:38:16,594 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 23:38:16,594 INFO L85 PathProgramCache]: Analyzing trace with hash 990585874, now seen corresponding path program 1 times [2023-08-03 23:38:16,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 23:38:16,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29447113] [2023-08-03 23:38:16,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 23:38:16,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 23:38:16,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 23:38:16,736 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-03 23:38:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 23:38:16,794 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-03 23:38:16,796 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-03 23:38:16,797 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2023-08-03 23:38:16,799 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-08-03 23:38:16,799 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-08-03 23:38:16,799 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-08-03 23:38:16,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-03 23:38:16,800 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-03 23:38:16,802 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN (1/2) [2023-08-03 23:38:16,803 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-03 23:38:16,803 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-03 23:38:16,834 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-03 23:38:16,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 202 places, 191 transitions, 430 flow [2023-08-03 23:38:17,407 INFO L124 PetriNetUnfolderBase]: 282/4407 cut-off events. [2023-08-03 23:38:17,408 INFO L125 PetriNetUnfolderBase]: For 80/80 co-relation queries the response was YES. [2023-08-03 23:38:17,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4696 conditions, 4407 events. 282/4407 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 43280 event pairs, 0 based on Foata normal form. 0/3870 useless extension candidates. Maximal degree in co-relation 3148. Up to 162 conditions per place. [2023-08-03 23:38:17,440 INFO L82 GeneralOperation]: Start removeDead. Operand has 202 places, 191 transitions, 430 flow [2023-08-03 23:38:17,447 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 174 places, 160 transitions, 368 flow [2023-08-03 23:38:17,448 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 23:38:17,448 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 174 places, 160 transitions, 368 flow [2023-08-03 23:38:17,449 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 174 places, 160 transitions, 368 flow [2023-08-03 23:38:17,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 174 places, 160 transitions, 368 flow [2023-08-03 23:38:17,696 INFO L124 PetriNetUnfolderBase]: 39/1896 cut-off events. [2023-08-03 23:38:17,696 INFO L125 PetriNetUnfolderBase]: For 80/80 co-relation queries the response was YES. [2023-08-03 23:38:17,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2185 conditions, 1896 events. 39/1896 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 15284 event pairs, 0 based on Foata normal form. 0/1764 useless extension candidates. Maximal degree in co-relation 1474. Up to 81 conditions per place. [2023-08-03 23:38:17,736 INFO L119 LiptonReduction]: Number of co-enabled transitions 6200 [2023-08-03 23:38:21,512 INFO L134 LiptonReduction]: Checked pairs total: 19932 [2023-08-03 23:38:21,512 INFO L136 LiptonReduction]: Total number of compositions: 109 [2023-08-03 23:38:21,514 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-03 23:38:21,516 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5201ea22, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 23:38:21,516 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-03 23:38:21,526 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 23:38:21,526 INFO L124 PetriNetUnfolderBase]: 0/102 cut-off events. [2023-08-03 23:38:21,526 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-08-03 23:38:21,526 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 23:38:21,526 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 23:38:21,527 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-03 23:38:21,527 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 23:38:21,527 INFO L85 PathProgramCache]: Analyzing trace with hash 753856613, now seen corresponding path program 1 times [2023-08-03 23:38:21,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 23:38:21,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607232482] [2023-08-03 23:38:21,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 23:38:21,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 23:38:21,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 23:38:21,651 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-08-03 23:38:21,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 23:38:21,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607232482] [2023-08-03 23:38:21,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607232482] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 23:38:21,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 23:38:21,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-03 23:38:21,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248413493] [2023-08-03 23:38:21,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 23:38:21,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 23:38:21,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 23:38:21,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 23:38:21,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 23:38:21,710 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 300 [2023-08-03 23:38:21,715 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 59 transitions, 166 flow. Second operand has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 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) [2023-08-03 23:38:21,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 23:38:21,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 300 [2023-08-03 23:38:21,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 23:40:21,442 INFO L124 PetriNetUnfolderBase]: 947916/1201450 cut-off events. [2023-08-03 23:40:21,443 INFO L125 PetriNetUnfolderBase]: For 56424/56424 co-relation queries the response was YES. [2023-08-03 23:40:27,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2424195 conditions, 1201450 events. 947916/1201450 cut-off events. For 56424/56424 co-relation queries the response was YES. Maximal size of possible extension queue 31237. Compared 8550165 event pairs, 807918 based on Foata normal form. 0/1093962 useless extension candidates. Maximal degree in co-relation 714726. Up to 1157914 conditions per place. [2023-08-03 23:40:34,798 INFO L140 encePairwiseOnDemand]: 297/300 looper letters, 43 selfloop transitions, 2 changer transitions 0/63 dead transitions. [2023-08-03 23:40:34,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 63 transitions, 264 flow [2023-08-03 23:40:34,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 23:40:34,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 23:40:34,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 535 transitions. [2023-08-03 23:40:34,820 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5944444444444444 [2023-08-03 23:40:34,822 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 535 transitions. [2023-08-03 23:40:34,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 535 transitions. [2023-08-03 23:40:34,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 23:40:34,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 535 transitions. [2023-08-03 23:40:34,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 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) [2023-08-03 23:40:34,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 300.0) internal successors, (1200), 4 states have internal predecessors, (1200), 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) [2023-08-03 23:40:34,859 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 300.0) internal successors, (1200), 4 states have internal predecessors, (1200), 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) [2023-08-03 23:40:34,861 INFO L175 Difference]: Start difference. First operand has 76 places, 59 transitions, 166 flow. Second operand 3 states and 535 transitions. [2023-08-03 23:40:34,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 63 transitions, 264 flow [2023-08-03 23:40:34,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 63 transitions, 256 flow, removed 4 selfloop flow, removed 0 redundant places. [2023-08-03 23:40:34,982 INFO L231 Difference]: Finished difference. Result has 79 places, 60 transitions, 170 flow [2023-08-03 23:40:34,986 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=300, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=79, PETRI_TRANSITIONS=60} [2023-08-03 23:40:34,989 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 3 predicate places. [2023-08-03 23:40:34,993 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 60 transitions, 170 flow [2023-08-03 23:40:34,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 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) [2023-08-03 23:40:34,994 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 23:40:34,994 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-03 23:40:34,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-03 23:40:34,995 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-03 23:40:34,995 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 23:40:34,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1714617229, now seen corresponding path program 1 times [2023-08-03 23:40:34,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 23:40:34,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608140672] [2023-08-03 23:40:34,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 23:40:34,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 23:40:35,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 23:40:35,131 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-03 23:40:35,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 23:40:35,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608140672] [2023-08-03 23:40:35,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608140672] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 23:40:35,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730809051] [2023-08-03 23:40:35,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 23:40:35,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 23:40:35,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 23:40:35,161 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-03 23:40:35,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process