/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.automaton.type.used.in.concurrency.analysis FINITE_AUTOMATA -i ../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-13 18:05:47,171 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-13 18:05:47,211 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2025-04-13 18:05:47,214 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-13 18:05:47,214 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-13 18:05:47,238 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-13 18:05:47,238 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-13 18:05:47,238 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-13 18:05:47,240 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-13 18:05:47,240 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-13 18:05:47,240 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-13 18:05:47,240 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-13 18:05:47,241 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-13 18:05:47,241 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-13 18:05:47,241 INFO L153 SettingsManager]: * Use SBE=true [2025-04-13 18:05:47,241 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-13 18:05:47,241 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-13 18:05:47,242 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-13 18:05:47,242 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-13 18:05:47,242 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-13 18:05:47,242 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-13 18:05:47,242 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-13 18:05:47,242 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-13 18:05:47,242 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-13 18:05:47,242 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-13 18:05:47,242 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-13 18:05:47,242 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-13 18:05:47,242 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-13 18:05:47,242 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-13 18:05:47,242 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 18:05:47,243 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 18:05:47,243 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 18:05:47,243 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 18:05:47,243 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-13 18:05:47,243 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 18:05:47,243 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 18:05:47,243 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 18:05:47,243 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 18:05:47,243 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-13 18:05:47,243 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-13 18:05:47,243 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-13 18:05:47,243 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-13 18:05:47,243 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-13 18:05:47,243 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-13 18:05:47,243 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-13 18:05:47,243 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-13 18:05:47,243 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-13 18:05:47,243 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Automaton type used in concurrency analysis -> FINITE_AUTOMATA [2025-04-13 18:05:47,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-13 18:05:47,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-13 18:05:47,487 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-13 18:05:47,488 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-13 18:05:47,489 INFO L274 PluginConnector]: CDTParser initialized [2025-04-13 18:05:47,490 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c [2025-04-13 18:05:48,799 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87f1e0754/cf10394808dc427c881d5f4584b42a64/FLAG35e61252e [2025-04-13 18:05:49,018 INFO L389 CDTParser]: Found 1 translation units. [2025-04-13 18:05:49,019 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c [2025-04-13 18:05:49,027 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87f1e0754/cf10394808dc427c881d5f4584b42a64/FLAG35e61252e [2025-04-13 18:05:49,849 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87f1e0754/cf10394808dc427c881d5f4584b42a64 [2025-04-13 18:05:49,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-13 18:05:49,852 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-13 18:05:49,853 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-13 18:05:49,853 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-13 18:05:49,856 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-13 18:05:49,859 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 06:05:49" (1/1) ... [2025-04-13 18:05:49,860 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ce4fcd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:05:49, skipping insertion in model container [2025-04-13 18:05:49,860 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 06:05:49" (1/1) ... [2025-04-13 18:05:49,872 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-13 18:05:50,055 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c[4450,4463] [2025-04-13 18:05:50,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 18:05:50,078 INFO L200 MainTranslator]: Completed pre-run [2025-04-13 18:05:50,123 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c[4450,4463] [2025-04-13 18:05:50,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 18:05:50,142 INFO L204 MainTranslator]: Completed translation [2025-04-13 18:05:50,142 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:05:50 WrapperNode [2025-04-13 18:05:50,143 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-13 18:05:50,143 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-13 18:05:50,143 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-13 18:05:50,143 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-13 18:05:50,148 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:05:50" (1/1) ... [2025-04-13 18:05:50,161 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:05:50" (1/1) ... [2025-04-13 18:05:50,182 INFO L138 Inliner]: procedures = 28, calls = 65, calls flagged for inlining = 21, calls inlined = 27, statements flattened = 292 [2025-04-13 18:05:50,183 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-13 18:05:50,183 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-13 18:05:50,183 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-13 18:05:50,183 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-13 18:05:50,189 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:05:50" (1/1) ... [2025-04-13 18:05:50,190 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:05:50" (1/1) ... [2025-04-13 18:05:50,193 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:05:50" (1/1) ... [2025-04-13 18:05:50,209 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2025-04-13 18:05:50,210 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:05:50" (1/1) ... [2025-04-13 18:05:50,210 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:05:50" (1/1) ... [2025-04-13 18:05:50,215 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:05:50" (1/1) ... [2025-04-13 18:05:50,216 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:05:50" (1/1) ... [2025-04-13 18:05:50,218 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:05:50" (1/1) ... [2025-04-13 18:05:50,219 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:05:50" (1/1) ... [2025-04-13 18:05:50,220 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:05:50" (1/1) ... [2025-04-13 18:05:50,224 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-13 18:05:50,225 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-13 18:05:50,225 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-13 18:05:50,225 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-13 18:05:50,226 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:05:50" (1/1) ... [2025-04-13 18:05:50,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 18:05:50,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 18:05:50,254 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-13 18:05:50,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-13 18:05:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-13 18:05:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-04-13 18:05:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-04-13 18:05:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-04-13 18:05:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-04-13 18:05:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-13 18:05:50,272 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-13 18:05:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-13 18:05:50,272 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-13 18:05:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-13 18:05:50,272 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-13 18:05:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-04-13 18:05:50,272 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-04-13 18:05:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-13 18:05:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-13 18:05:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-04-13 18:05:50,272 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-04-13 18:05:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2025-04-13 18:05:50,273 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2025-04-13 18:05:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-13 18:05:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-13 18:05:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-13 18:05:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-13 18:05:50,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-13 18:05:50,274 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-13 18:05:50,369 INFO L234 CfgBuilder]: Building ICFG [2025-04-13 18:05:50,370 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-13 18:05:50,692 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-13 18:05:50,693 INFO L289 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-13 18:05:50,693 INFO L294 CfgBuilder]: Performing block encoding [2025-04-13 18:05:50,997 INFO L313 CfgBuilder]: Removed 4 assume(true) statements. [2025-04-13 18:05:50,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 06:05:50 BoogieIcfgContainer [2025-04-13 18:05:50,998 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-13 18:05:50,999 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-13 18:05:50,999 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-13 18:05:51,003 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-13 18:05:51,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 06:05:49" (1/3) ... [2025-04-13 18:05:51,003 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66afc16d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 06:05:51, skipping insertion in model container [2025-04-13 18:05:51,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:05:50" (2/3) ... [2025-04-13 18:05:51,003 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66afc16d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 06:05:51, skipping insertion in model container [2025-04-13 18:05:51,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 06:05:50" (3/3) ... [2025-04-13 18:05:51,004 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1-dsl.wvr.c [2025-04-13 18:05:51,014 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-13 18:05:51,015 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-parallel-sum-1-dsl.wvr.c that has 7 procedures, 61 locations, 59 edges, 1 initial locations, 5 loop locations, and 1 error locations. [2025-04-13 18:05:51,015 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-13 18:05:51,077 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2025-04-13 18:05:51,116 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 85 places, 75 transitions, 216 flow [2025-04-13 18:05:52,402 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 31630 states, 31629 states have (on average 5.292895760220051) internal successors, (167409), 31629 states have internal predecessors, (167409), 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) [2025-04-13 18:05:52,422 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-13 18:05:52,429 INFO L340 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=FINITE_AUTOMATA, 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;@d37fa36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-13 18:05:52,430 INFO L341 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2025-04-13 18:05:52,586 INFO L278 IsEmpty]: Start isEmpty. Operand has 31630 states, 31629 states have (on average 5.292895760220051) internal successors, (167409), 31629 states have internal predecessors, (167409), 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) [2025-04-13 18:05:52,809 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-04-13 18:05:52,809 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:05:52,809 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:05:52,810 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:05:52,814 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:05:52,814 INFO L85 PathProgramCache]: Analyzing trace with hash 2021616443, now seen corresponding path program 1 times [2025-04-13 18:05:52,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:05:52,819 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501419376] [2025-04-13 18:05:52,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 18:05:52,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:05:52,956 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-04-13 18:05:52,986 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-04-13 18:05:52,986 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 18:05:52,986 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:05:53,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 18:05:53,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:05:53,243 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501419376] [2025-04-13 18:05:53,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501419376] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:05:53,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:05:53,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-13 18:05:53,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41160444] [2025-04-13 18:05:53,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:05:53,248 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-13 18:05:53,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:05:53,261 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-13 18:05:53,261 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-13 18:05:53,332 INFO L87 Difference]: Start difference. First operand has 31630 states, 31629 states have (on average 5.292895760220051) internal successors, (167409), 31629 states have internal predecessors, (167409), 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) Second operand has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 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) [2025-04-13 18:05:55,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:05:55,759 INFO L93 Difference]: Finished difference Result 91624 states and 488367 transitions. [2025-04-13 18:05:55,760 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-13 18:05:55,761 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 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) Word has length 45 [2025-04-13 18:05:55,762 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:05:56,780 INFO L225 Difference]: With dead ends: 91624 [2025-04-13 18:05:56,781 INFO L226 Difference]: Without dead ends: 90541 [2025-04-13 18:05:56,906 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-04-13 18:05:56,909 INFO L437 NwaCegarLoop]: 8 mSDtfsCounter, 90 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-04-13 18:05:56,915 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 18 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-04-13 18:05:57,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90541 states. [2025-04-13 18:05:59,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90541 to 40520. [2025-04-13 18:05:59,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40520 states, 40519 states have (on average 5.269700634270342) internal successors, (213523), 40519 states have internal predecessors, (213523), 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) [2025-04-13 18:06:00,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40520 states to 40520 states and 213523 transitions. [2025-04-13 18:06:00,158 INFO L79 Accepts]: Start accepts. Automaton has 40520 states and 213523 transitions. Word has length 45 [2025-04-13 18:06:00,159 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:06:00,159 INFO L485 AbstractCegarLoop]: Abstraction has 40520 states and 213523 transitions. [2025-04-13 18:06:00,159 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 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) [2025-04-13 18:06:00,159 INFO L278 IsEmpty]: Start isEmpty. Operand 40520 states and 213523 transitions. [2025-04-13 18:06:00,355 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-04-13 18:06:00,355 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:06:00,355 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:06:00,356 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-13 18:06:00,356 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:06:00,356 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:06:00,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1994728965, now seen corresponding path program 2 times [2025-04-13 18:06:00,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:06:00,356 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671408392] [2025-04-13 18:06:00,356 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 18:06:00,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:06:00,371 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 45 statements into 1 equivalence classes. [2025-04-13 18:06:00,390 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-04-13 18:06:00,390 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 18:06:00,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:06:00,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 18:06:00,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:06:00,510 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671408392] [2025-04-13 18:06:00,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671408392] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:06:00,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:06:00,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-13 18:06:00,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982452865] [2025-04-13 18:06:00,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:06:00,511 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-13 18:06:00,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:06:00,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-13 18:06:00,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-13 18:06:00,511 INFO L87 Difference]: Start difference. First operand 40520 states and 213523 transitions. Second operand has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 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) [2025-04-13 18:06:02,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:06:02,622 INFO L93 Difference]: Finished difference Result 99444 states and 529738 transitions. [2025-04-13 18:06:02,622 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-13 18:06:02,622 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 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) Word has length 45 [2025-04-13 18:06:02,623 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:06:03,505 INFO L225 Difference]: With dead ends: 99444 [2025-04-13 18:06:03,505 INFO L226 Difference]: Without dead ends: 98361 [2025-04-13 18:06:03,567 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-04-13 18:06:03,571 INFO L437 NwaCegarLoop]: 10 mSDtfsCounter, 66 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-04-13 18:06:03,572 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 20 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-04-13 18:06:03,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98361 states. [2025-04-13 18:06:05,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98361 to 40700. [2025-04-13 18:06:05,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40700 states, 40699 states have (on average 5.263446276321286) internal successors, (214217), 40699 states have internal predecessors, (214217), 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) [2025-04-13 18:06:05,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40700 states to 40700 states and 214217 transitions. [2025-04-13 18:06:05,919 INFO L79 Accepts]: Start accepts. Automaton has 40700 states and 214217 transitions. Word has length 45 [2025-04-13 18:06:05,920 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:06:05,920 INFO L485 AbstractCegarLoop]: Abstraction has 40700 states and 214217 transitions. [2025-04-13 18:06:05,920 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 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) [2025-04-13 18:06:05,920 INFO L278 IsEmpty]: Start isEmpty. Operand 40700 states and 214217 transitions. [2025-04-13 18:06:06,053 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-04-13 18:06:06,053 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:06:06,053 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:06:06,053 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-13 18:06:06,054 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:06:06,054 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:06:06,054 INFO L85 PathProgramCache]: Analyzing trace with hash 909097928, now seen corresponding path program 1 times [2025-04-13 18:06:06,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:06:06,054 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104895644] [2025-04-13 18:06:06,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 18:06:06,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:06:06,073 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-04-13 18:06:06,089 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-04-13 18:06:06,089 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 18:06:06,089 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:06:06,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 18:06:06,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:06:06,233 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104895644] [2025-04-13 18:06:06,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104895644] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:06:06,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:06:06,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-13 18:06:06,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126746808] [2025-04-13 18:06:06,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:06:06,234 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-13 18:06:06,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:06:06,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-13 18:06:06,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-13 18:06:06,234 INFO L87 Difference]: Start difference. First operand 40700 states and 214217 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-13 18:06:08,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:06:08,682 INFO L93 Difference]: Finished difference Result 102481 states and 542109 transitions. [2025-04-13 18:06:08,683 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-13 18:06:08,683 INFO L79 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2025-04-13 18:06:08,683 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:06:09,494 INFO L225 Difference]: With dead ends: 102481 [2025-04-13 18:06:09,494 INFO L226 Difference]: Without dead ends: 64535 [2025-04-13 18:06:09,569 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-13 18:06:09,574 INFO L437 NwaCegarLoop]: 6 mSDtfsCounter, 88 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-04-13 18:06:09,574 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 18 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-04-13 18:06:09,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64535 states. [2025-04-13 18:06:11,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64535 to 56920. [2025-04-13 18:06:11,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56920 states, 56919 states have (on average 5.176162617052302) internal successors, (294622), 56919 states have internal predecessors, (294622), 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) [2025-04-13 18:06:11,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56920 states to 56920 states and 294622 transitions. [2025-04-13 18:06:12,067 INFO L79 Accepts]: Start accepts. Automaton has 56920 states and 294622 transitions. Word has length 48 [2025-04-13 18:06:12,068 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:06:12,068 INFO L485 AbstractCegarLoop]: Abstraction has 56920 states and 294622 transitions. [2025-04-13 18:06:12,068 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-13 18:06:12,068 INFO L278 IsEmpty]: Start isEmpty. Operand 56920 states and 294622 transitions. [2025-04-13 18:06:12,251 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-04-13 18:06:12,252 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:06:12,252 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:06:12,252 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-13 18:06:12,252 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:06:12,253 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:06:12,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1826825940, now seen corresponding path program 1 times [2025-04-13 18:06:12,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:06:12,253 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217710726] [2025-04-13 18:06:12,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 18:06:12,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:06:12,263 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-04-13 18:06:12,271 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-04-13 18:06:12,271 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 18:06:12,271 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:06:12,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 18:06:12,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:06:12,401 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217710726] [2025-04-13 18:06:12,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217710726] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:06:12,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:06:12,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-13 18:06:12,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142292094] [2025-04-13 18:06:12,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:06:12,402 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-13 18:06:12,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:06:12,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-13 18:06:12,402 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-13 18:06:12,402 INFO L87 Difference]: Start difference. First operand 56920 states and 294622 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-13 18:06:13,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:06:13,943 INFO L93 Difference]: Finished difference Result 68135 states and 349267 transitions. [2025-04-13 18:06:13,943 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-13 18:06:13,943 INFO L79 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2025-04-13 18:06:13,943 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:06:14,208 INFO L225 Difference]: With dead ends: 68135 [2025-04-13 18:06:14,209 INFO L226 Difference]: Without dead ends: 40701 [2025-04-13 18:06:14,257 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-13 18:06:14,258 INFO L437 NwaCegarLoop]: 6 mSDtfsCounter, 55 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-04-13 18:06:14,258 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 18 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-04-13 18:06:14,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40701 states. [2025-04-13 18:06:15,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40701 to 40701. [2025-04-13 18:06:15,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40701 states, 40700 states have (on average 5.2633415233415235) internal successors, (214218), 40700 states have internal predecessors, (214218), 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) [2025-04-13 18:06:15,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40701 states to 40701 states and 214218 transitions. [2025-04-13 18:06:15,999 INFO L79 Accepts]: Start accepts. Automaton has 40701 states and 214218 transitions. Word has length 48 [2025-04-13 18:06:15,999 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:06:15,999 INFO L485 AbstractCegarLoop]: Abstraction has 40701 states and 214218 transitions. [2025-04-13 18:06:16,000 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-13 18:06:16,000 INFO L278 IsEmpty]: Start isEmpty. Operand 40701 states and 214218 transitions. [2025-04-13 18:06:16,133 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2025-04-13 18:06:16,133 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:06:16,133 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:06:16,133 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-13 18:06:16,133 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:06:16,136 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:06:16,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1489350702, now seen corresponding path program 1 times [2025-04-13 18:06:16,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:06:16,136 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176688748] [2025-04-13 18:06:16,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 18:06:16,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:06:16,154 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-04-13 18:06:16,165 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-04-13 18:06:16,166 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 18:06:16,166 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:06:16,283 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 18:06:16,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:06:16,283 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176688748] [2025-04-13 18:06:16,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176688748] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-13 18:06:16,284 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460728209] [2025-04-13 18:06:16,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 18:06:16,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 18:06:16,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 18:06:16,287 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) [2025-04-13 18:06:16,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-04-13 18:06:16,357 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-04-13 18:06:16,682 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-04-13 18:06:16,682 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 18:06:16,682 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:06:16,686 INFO L256 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-04-13 18:06:16,693 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-13 18:06:16,804 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 18:06:16,804 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-13 18:06:16,868 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 18:06:16,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460728209] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-13 18:06:16,868 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-13 18:06:16,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-04-13 18:06:16,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087372376] [2025-04-13 18:06:16,869 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-13 18:06:16,869 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-04-13 18:06:16,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:06:16,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-04-13 18:06:16,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2025-04-13 18:06:16,869 INFO L87 Difference]: Start difference. First operand 40701 states and 214218 transitions. Second operand has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 11 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) [2025-04-13 18:06:19,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:06:19,046 INFO L93 Difference]: Finished difference Result 102482 states and 542110 transitions. [2025-04-13 18:06:19,046 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-13 18:06:19,046 INFO L79 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 11 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) Word has length 49 [2025-04-13 18:06:19,047 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:06:19,651 INFO L225 Difference]: With dead ends: 102482 [2025-04-13 18:06:19,651 INFO L226 Difference]: Without dead ends: 61243 [2025-04-13 18:06:19,719 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 90 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2025-04-13 18:06:19,721 INFO L437 NwaCegarLoop]: 6 mSDtfsCounter, 186 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-04-13 18:06:19,722 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 40 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-04-13 18:06:19,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61243 states. [2025-04-13 18:06:21,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61243 to 46346. [2025-04-13 18:06:21,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46346 states, 46345 states have (on average 5.132657244578703) internal successors, (237873), 46345 states have internal predecessors, (237873), 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) [2025-04-13 18:06:21,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46346 states to 46346 states and 237873 transitions. [2025-04-13 18:06:22,086 INFO L79 Accepts]: Start accepts. Automaton has 46346 states and 237873 transitions. Word has length 49 [2025-04-13 18:06:22,087 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:06:22,087 INFO L485 AbstractCegarLoop]: Abstraction has 46346 states and 237873 transitions. [2025-04-13 18:06:22,087 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 11 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) [2025-04-13 18:06:22,087 INFO L278 IsEmpty]: Start isEmpty. Operand 46346 states and 237873 transitions. [2025-04-13 18:06:22,210 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2025-04-13 18:06:22,210 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:06:22,211 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:06:22,217 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-04-13 18:06:22,412 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 18:06:22,412 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:06:22,412 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:06:22,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1887888582, now seen corresponding path program 1 times [2025-04-13 18:06:22,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:06:22,413 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621978847] [2025-04-13 18:06:22,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 18:06:22,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:06:22,423 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-04-13 18:06:22,433 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-04-13 18:06:22,433 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 18:06:22,433 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:06:22,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 18:06:22,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:06:22,547 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621978847] [2025-04-13 18:06:22,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621978847] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-13 18:06:22,547 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150451401] [2025-04-13 18:06:22,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 18:06:22,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 18:06:22,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 18:06:22,549 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-13 18:06:22,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-13 18:06:22,611 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-04-13 18:06:22,637 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-04-13 18:06:22,637 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 18:06:22,637 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:06:22,638 INFO L256 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-04-13 18:06:22,641 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-13 18:06:22,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 18:06:22,722 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-13 18:06:22,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 18:06:22,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150451401] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-13 18:06:22,778 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-13 18:06:22,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-04-13 18:06:22,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102079944] [2025-04-13 18:06:22,778 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-13 18:06:22,778 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-04-13 18:06:22,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:06:22,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-04-13 18:06:22,779 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2025-04-13 18:06:22,779 INFO L87 Difference]: Start difference. First operand 46346 states and 237873 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 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) [2025-04-13 18:06:24,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:06:24,523 INFO L93 Difference]: Finished difference Result 71826 states and 364498 transitions. [2025-04-13 18:06:24,523 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-13 18:06:24,523 INFO L79 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 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) Word has length 49 [2025-04-13 18:06:24,524 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:06:24,952 INFO L225 Difference]: With dead ends: 71826 [2025-04-13 18:06:24,952 INFO L226 Difference]: Without dead ends: 33323 [2025-04-13 18:06:24,995 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 90 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2025-04-13 18:06:24,996 INFO L437 NwaCegarLoop]: 6 mSDtfsCounter, 107 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-04-13 18:06:24,996 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 42 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-04-13 18:06:25,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33323 states. [2025-04-13 18:06:25,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33323 to 33323. [2025-04-13 18:06:25,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33323 states, 33322 states have (on average 5.071154192425425) internal successors, (168981), 33322 states have internal predecessors, (168981), 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) [2025-04-13 18:06:26,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33323 states to 33323 states and 168981 transitions. [2025-04-13 18:06:26,215 INFO L79 Accepts]: Start accepts. Automaton has 33323 states and 168981 transitions. Word has length 49 [2025-04-13 18:06:26,215 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:06:26,215 INFO L485 AbstractCegarLoop]: Abstraction has 33323 states and 168981 transitions. [2025-04-13 18:06:26,215 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 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) [2025-04-13 18:06:26,215 INFO L278 IsEmpty]: Start isEmpty. Operand 33323 states and 168981 transitions. [2025-04-13 18:06:26,298 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-04-13 18:06:26,298 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:06:26,298 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:06:26,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-04-13 18:06:26,499 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2025-04-13 18:06:26,499 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:06:26,499 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:06:26,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1997649784, now seen corresponding path program 2 times [2025-04-13 18:06:26,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:06:26,500 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117978949] [2025-04-13 18:06:26,500 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 18:06:26,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:06:26,514 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 50 statements into 2 equivalence classes. [2025-04-13 18:06:26,528 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 50 of 50 statements. [2025-04-13 18:06:26,528 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-13 18:06:26,528 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:06:26,610 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-04-13 18:06:26,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:06:26,610 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117978949] [2025-04-13 18:06:26,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117978949] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-13 18:06:26,610 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543520479] [2025-04-13 18:06:26,610 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 18:06:26,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 18:06:26,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 18:06:26,612 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-13 18:06:26,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-04-13 18:06:26,671 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 50 statements into 2 equivalence classes. [2025-04-13 18:06:26,699 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 50 of 50 statements. [2025-04-13 18:06:26,700 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-13 18:06:26,700 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:06:26,701 INFO L256 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-13 18:06:26,702 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-13 18:06:26,762 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-04-13 18:06:26,762 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-13 18:06:26,799 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-04-13 18:06:26,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543520479] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-13 18:06:26,799 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-13 18:06:26,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-04-13 18:06:26,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460625813] [2025-04-13 18:06:26,800 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-13 18:06:26,800 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-04-13 18:06:26,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:06:26,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-04-13 18:06:26,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-04-13 18:06:26,800 INFO L87 Difference]: Start difference. First operand 33323 states and 168981 transitions. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 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) [2025-04-13 18:06:29,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:06:29,066 INFO L93 Difference]: Finished difference Result 89093 states and 452762 transitions. [2025-04-13 18:06:29,066 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-13 18:06:29,066 INFO L79 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 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) Word has length 50 [2025-04-13 18:06:29,066 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:06:29,720 INFO L225 Difference]: With dead ends: 89093 [2025-04-13 18:06:29,720 INFO L226 Difference]: Without dead ends: 72567 [2025-04-13 18:06:29,760 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 95 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2025-04-13 18:06:29,761 INFO L437 NwaCegarLoop]: 12 mSDtfsCounter, 239 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-04-13 18:06:29,761 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 44 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-04-13 18:06:29,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72567 states. [2025-04-13 18:06:31,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72567 to 40907. [2025-04-13 18:06:31,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40907 states, 40906 states have (on average 5.0996675304356325) internal successors, (208607), 40906 states have internal predecessors, (208607), 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) [2025-04-13 18:06:31,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40907 states to 40907 states and 208607 transitions. [2025-04-13 18:06:31,982 INFO L79 Accepts]: Start accepts. Automaton has 40907 states and 208607 transitions. Word has length 50 [2025-04-13 18:06:31,982 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:06:31,983 INFO L485 AbstractCegarLoop]: Abstraction has 40907 states and 208607 transitions. [2025-04-13 18:06:31,983 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 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) [2025-04-13 18:06:31,983 INFO L278 IsEmpty]: Start isEmpty. Operand 40907 states and 208607 transitions. [2025-04-13 18:06:32,087 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-04-13 18:06:32,087 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:06:32,087 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:06:32,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-04-13 18:06:32,287 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 18:06:32,288 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:06:32,288 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:06:32,288 INFO L85 PathProgramCache]: Analyzing trace with hash 984334118, now seen corresponding path program 3 times [2025-04-13 18:06:32,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:06:32,288 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326041566] [2025-04-13 18:06:32,288 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-13 18:06:32,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:06:32,297 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 50 statements into 2 equivalence classes. [2025-04-13 18:06:32,304 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 48 of 50 statements. [2025-04-13 18:06:32,304 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-13 18:06:32,304 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:06:32,380 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-04-13 18:06:32,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:06:32,380 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326041566] [2025-04-13 18:06:32,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326041566] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:06:32,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:06:32,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-04-13 18:06:32,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416496414] [2025-04-13 18:06:32,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:06:32,381 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-13 18:06:32,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:06:32,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-13 18:06:32,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-04-13 18:06:32,381 INFO L87 Difference]: Start difference. First operand 40907 states and 208607 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2025-04-13 18:06:34,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:06:34,647 INFO L93 Difference]: Finished difference Result 78687 states and 395675 transitions. [2025-04-13 18:06:34,648 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-13 18:06:34,648 INFO L79 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) Word has length 50 [2025-04-13 18:06:34,648 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:06:35,050 INFO L225 Difference]: With dead ends: 78687 [2025-04-13 18:06:35,051 INFO L226 Difference]: Without dead ends: 58169 [2025-04-13 18:06:35,093 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-04-13 18:06:35,094 INFO L437 NwaCegarLoop]: 12 mSDtfsCounter, 162 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-04-13 18:06:35,094 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 28 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-04-13 18:06:35,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58169 states. [2025-04-13 18:06:36,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58169 to 38523. [2025-04-13 18:06:36,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38523 states, 38522 states have (on average 5.094569337002232) internal successors, (196253), 38522 states have internal predecessors, (196253), 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) [2025-04-13 18:06:36,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38523 states to 38523 states and 196253 transitions. [2025-04-13 18:06:36,994 INFO L79 Accepts]: Start accepts. Automaton has 38523 states and 196253 transitions. Word has length 50 [2025-04-13 18:06:36,994 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:06:36,994 INFO L485 AbstractCegarLoop]: Abstraction has 38523 states and 196253 transitions. [2025-04-13 18:06:36,994 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2025-04-13 18:06:36,995 INFO L278 IsEmpty]: Start isEmpty. Operand 38523 states and 196253 transitions. [2025-04-13 18:06:37,084 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-04-13 18:06:37,084 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:06:37,084 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:06:37,084 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-04-13 18:06:37,084 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:06:37,084 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:06:37,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1864251940, now seen corresponding path program 2 times [2025-04-13 18:06:37,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:06:37,085 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910934362] [2025-04-13 18:06:37,085 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 18:06:37,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:06:37,092 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 50 statements into 2 equivalence classes. [2025-04-13 18:06:37,098 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 48 of 50 statements. [2025-04-13 18:06:37,098 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 18:06:37,099 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:06:37,148 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-04-13 18:06:37,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:06:37,149 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910934362] [2025-04-13 18:06:37,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910934362] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:06:37,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:06:37,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-13 18:06:37,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884347681] [2025-04-13 18:06:37,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:06:37,149 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-13 18:06:37,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:06:37,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-13 18:06:37,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-13 18:06:37,150 INFO L87 Difference]: Start difference. First operand 38523 states and 196253 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2025-04-13 18:06:39,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:06:39,247 INFO L93 Difference]: Finished difference Result 76616 states and 392542 transitions. [2025-04-13 18:06:39,248 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-13 18:06:39,248 INFO L79 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) Word has length 50 [2025-04-13 18:06:39,248 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:06:39,698 INFO L225 Difference]: With dead ends: 76616 [2025-04-13 18:06:39,698 INFO L226 Difference]: Without dead ends: 66689 [2025-04-13 18:06:39,730 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-13 18:06:39,731 INFO L437 NwaCegarLoop]: 12 mSDtfsCounter, 107 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-04-13 18:06:39,731 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 32 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-04-13 18:06:39,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66689 states. [2025-04-13 18:06:41,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66689 to 40619. [2025-04-13 18:06:41,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40619 states, 40618 states have (on average 5.115884583189719) internal successors, (207797), 40618 states have internal predecessors, (207797), 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) [2025-04-13 18:06:41,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40619 states to 40619 states and 207797 transitions. [2025-04-13 18:06:41,804 INFO L79 Accepts]: Start accepts. Automaton has 40619 states and 207797 transitions. Word has length 50 [2025-04-13 18:06:41,805 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:06:41,805 INFO L485 AbstractCegarLoop]: Abstraction has 40619 states and 207797 transitions. [2025-04-13 18:06:41,805 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2025-04-13 18:06:41,805 INFO L278 IsEmpty]: Start isEmpty. Operand 40619 states and 207797 transitions. [2025-04-13 18:06:41,900 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-04-13 18:06:41,900 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:06:41,900 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:06:41,901 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-04-13 18:06:41,901 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2025-04-13 18:06:41,901 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:06:41,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1047918684, now seen corresponding path program 3 times [2025-04-13 18:06:41,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:06:41,901 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055527973] [2025-04-13 18:06:41,901 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-13 18:06:41,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:06:41,912 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 50 statements into 2 equivalence classes. [2025-04-13 18:06:41,916 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 48 of 50 statements. [2025-04-13 18:06:41,917 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-13 18:06:41,917 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:06:41,962 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-04-13 18:06:41,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:06:41,962 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055527973] [2025-04-13 18:06:41,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055527973] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:06:41,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:06:41,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-13 18:06:41,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251525773] [2025-04-13 18:06:41,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:06:41,962 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-13 18:06:41,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:06:41,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-13 18:06:41,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-13 18:06:41,963 INFO L87 Difference]: Start difference. First operand 40619 states and 207797 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2025-04-13 18:06:44,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:06:44,363 INFO L93 Difference]: Finished difference Result 79384 states and 407131 transitions. [2025-04-13 18:06:44,363 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-13 18:06:44,363 INFO L79 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) Word has length 50 [2025-04-13 18:06:44,363 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:06:44,821 INFO L225 Difference]: With dead ends: 79384 [2025-04-13 18:06:44,822 INFO L226 Difference]: Without dead ends: 69617 [2025-04-13 18:06:44,857 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-13 18:06:44,858 INFO L437 NwaCegarLoop]: 14 mSDtfsCounter, 127 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-04-13 18:06:44,858 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 40 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-04-13 18:06:44,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69617 states.