./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c --full-output --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6f232940 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aee5edffc06a346ddce4a9cfa75b4213bee8ccd3009aa5307dc09037d26d7f28 --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6f23294-m [2025-03-19 13:44:03,036 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-19 13:44:03,112 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-03-19 13:44:03,117 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-19 13:44:03,117 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-19 13:44:03,131 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-19 13:44:03,132 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-19 13:44:03,132 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-19 13:44:03,132 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-19 13:44:03,132 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-19 13:44:03,133 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-19 13:44:03,133 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-19 13:44:03,133 INFO L153 SettingsManager]: * Use SBE=true [2025-03-19 13:44:03,133 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-19 13:44:03,133 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-19 13:44:03,133 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-19 13:44:03,133 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-19 13:44:03,133 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-19 13:44:03,133 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-19 13:44:03,134 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-19 13:44:03,134 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-19 13:44:03,134 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-19 13:44:03,134 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-19 13:44:03,134 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-19 13:44:03,134 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-19 13:44:03,134 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-19 13:44:03,134 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-19 13:44:03,134 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-19 13:44:03,134 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-19 13:44:03,134 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-19 13:44:03,134 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-19 13:44:03,134 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-19 13:44:03,134 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-19 13:44:03,134 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-19 13:44:03,134 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-03-19 13:44:03,134 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-19 13:44:03,134 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-19 13:44:03,134 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-03-19 13:44:03,134 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-19 13:44:03,134 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-03-19 13:44:03,134 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-03-19 13:44:03,135 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-03-19 13:44:03,135 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aee5edffc06a346ddce4a9cfa75b4213bee8ccd3009aa5307dc09037d26d7f28 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NONE [2025-03-19 13:44:03,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-19 13:44:03,365 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-19 13:44:03,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-19 13:44:03,368 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-19 13:44:03,368 INFO L274 PluginConnector]: CDTParser initialized [2025-03-19 13:44:03,368 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c [2025-03-19 13:44:04,667 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/d9b891fef/7f001e828fbb4aca8b1365f20b16916f/FLAGff66864e6 [2025-03-19 13:44:04,841 INFO L389 CDTParser]: Found 1 translation units. [2025-03-19 13:44:04,843 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c [2025-03-19 13:44:04,850 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/d9b891fef/7f001e828fbb4aca8b1365f20b16916f/FLAGff66864e6 [2025-03-19 13:44:06,768 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/d9b891fef/7f001e828fbb4aca8b1365f20b16916f [2025-03-19 13:44:06,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-19 13:44:06,771 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-19 13:44:06,772 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-19 13:44:06,772 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-19 13:44:06,776 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-19 13:44:06,776 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 01:44:06" (1/1) ... [2025-03-19 13:44:06,777 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43c68061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:44:06, skipping insertion in model container [2025-03-19 13:44:06,777 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 01:44:06" (1/1) ... [2025-03-19 13:44:06,788 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-19 13:44:06,931 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c[4303,4316] [2025-03-19 13:44:06,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-19 13:44:06,948 INFO L200 MainTranslator]: Completed pre-run [2025-03-19 13:44:06,974 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c[4303,4316] [2025-03-19 13:44:06,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-19 13:44:06,989 INFO L204 MainTranslator]: Completed translation [2025-03-19 13:44:06,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:44:06 WrapperNode [2025-03-19 13:44:06,989 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-19 13:44:06,990 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-19 13:44:06,990 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-19 13:44:06,990 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-19 13:44:06,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:44:06" (1/1) ... [2025-03-19 13:44:07,003 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:44:06" (1/1) ... [2025-03-19 13:44:07,023 INFO L138 Inliner]: procedures = 28, calls = 58, calls flagged for inlining = 22, calls inlined = 32, statements flattened = 370 [2025-03-19 13:44:07,023 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-19 13:44:07,023 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-19 13:44:07,023 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-19 13:44:07,023 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-19 13:44:07,028 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:44:06" (1/1) ... [2025-03-19 13:44:07,028 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:44:06" (1/1) ... [2025-03-19 13:44:07,030 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:44:06" (1/1) ... [2025-03-19 13:44:07,030 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:44:06" (1/1) ... [2025-03-19 13:44:07,040 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:44:06" (1/1) ... [2025-03-19 13:44:07,042 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:44:06" (1/1) ... [2025-03-19 13:44:07,048 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:44:06" (1/1) ... [2025-03-19 13:44:07,049 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:44:06" (1/1) ... [2025-03-19 13:44:07,050 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:44:06" (1/1) ... [2025-03-19 13:44:07,057 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-19 13:44:07,058 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-19 13:44:07,058 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-19 13:44:07,058 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-19 13:44:07,058 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:44:06" (1/1) ... [2025-03-19 13:44:07,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-19 13:44:07,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 13:44:07,082 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-03-19 13:44:07,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-03-19 13:44:07,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-19 13:44:07,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-19 13:44:07,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-19 13:44:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-19 13:44:07,099 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-19 13:44:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-19 13:44:07,099 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-19 13:44:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-19 13:44:07,099 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-19 13:44:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-03-19 13:44:07,099 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-03-19 13:44:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-19 13:44:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-03-19 13:44:07,099 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-03-19 13:44:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2025-03-19 13:44:07,099 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2025-03-19 13:44:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-19 13:44:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-19 13:44:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-19 13:44:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-19 13:44:07,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-19 13:44:07,100 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-19 13:44:07,183 INFO L234 CfgBuilder]: Building ICFG [2025-03-19 13:44:07,184 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-19 13:44:07,532 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-19 13:44:07,532 INFO L283 CfgBuilder]: Performing block encoding [2025-03-19 13:44:07,774 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-19 13:44:07,775 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2025-03-19 13:44:07,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 01:44:07 BoogieIcfgContainer [2025-03-19 13:44:07,776 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-19 13:44:07,777 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-19 13:44:07,778 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-19 13:44:07,781 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-19 13:44:07,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.03 01:44:06" (1/3) ... [2025-03-19 13:44:07,782 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f501058 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 01:44:07, skipping insertion in model container [2025-03-19 13:44:07,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:44:06" (2/3) ... [2025-03-19 13:44:07,783 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f501058 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 01:44:07, skipping insertion in model container [2025-03-19 13:44:07,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 01:44:07" (3/3) ... [2025-03-19 13:44:07,784 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-2.wvr.c [2025-03-19 13:44:07,794 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-19 13:44:07,795 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-parallel-sum-2.wvr.c that has 7 procedures, 62 locations, 64 edges, 1 initial locations, 5 loop locations, and 1 error locations. [2025-03-19 13:44:07,795 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-19 13:44:07,869 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2025-03-19 13:44:07,900 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 13:44:07,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-03-19 13:44:07,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 13:44:07,902 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-03-19 13:44:07,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-03-19 13:44:07,982 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-03-19 13:44:07,989 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread4Thread1of1ForFork5 ======== [2025-03-19 13:44:07,995 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=PARTIAL_ORDER_FA, 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;@1dd092b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 13:44:07,996 INFO L341 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-19 13:44:08,926 INFO L791 garLoopResultBuilder]: Registering result SAFE for location thread4Thread1of1ForFork5Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2025-03-19 13:44:08,927 INFO L791 garLoopResultBuilder]: Registering result SAFE for location thread4Thread1of1ForFork5Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2025-03-19 13:44:08,931 INFO L422 BasicCegarLoop]: Path program histogram: [] [2025-03-19 13:44:08,933 INFO L320 ceAbstractionStarter]: Result for error location thread4Thread1of1ForFork5 was SAFE,SAFE (1/3) [2025-03-19 13:44:08,936 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 13:44:08,938 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-03-19 13:44:08,940 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-03-19 13:44:08,941 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=PARTIAL_ORDER_FA, 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;@1dd092b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 13:44:08,941 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-03-19 13:44:09,049 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 13:44:09,052 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 13:44:09,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1222475719, now seen corresponding path program 1 times [2025-03-19 13:44:09,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 13:44:09,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235654399] [2025-03-19 13:44:09,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 13:44:09,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 13:44:09,114 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-19 13:44:09,146 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-19 13:44:09,147 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 13:44:09,147 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:44:09,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 13:44:09,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 13:44:09,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235654399] [2025-03-19 13:44:09,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235654399] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 13:44:09,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 13:44:09,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-19 13:44:09,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708563221] [2025-03-19 13:44:09,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 13:44:09,236 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-19 13:44:09,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 13:44:09,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-19 13:44:09,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-19 13:44:09,249 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:09,250 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 13:44:09,251 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 13:44:09,251 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:09,999 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:10,001 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-19 13:44:10,001 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 13:44:10,002 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 13:44:10,002 INFO L85 PathProgramCache]: Analyzing trace with hash 942910630, now seen corresponding path program 1 times [2025-03-19 13:44:10,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 13:44:10,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857972977] [2025-03-19 13:44:10,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 13:44:10,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 13:44:10,021 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-03-19 13:44:10,095 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-03-19 13:44:10,096 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 13:44:10,096 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:44:10,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 13:44:10,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 13:44:10,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857972977] [2025-03-19 13:44:10,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857972977] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 13:44:10,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 13:44:10,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-19 13:44:10,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425843005] [2025-03-19 13:44:10,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 13:44:10,441 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-19 13:44:10,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 13:44:10,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-19 13:44:10,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-19 13:44:10,441 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:10,443 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 13:44:10,443 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 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) [2025-03-19 13:44:10,443 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:10,443 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:10,767 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:10,768 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 13:44:10,768 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-19 13:44:10,768 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 13:44:10,768 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 13:44:10,768 INFO L85 PathProgramCache]: Analyzing trace with hash -948751308, now seen corresponding path program 1 times [2025-03-19 13:44:10,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 13:44:10,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919888240] [2025-03-19 13:44:10,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 13:44:10,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 13:44:10,786 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-03-19 13:44:10,820 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-03-19 13:44:10,821 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 13:44:10,821 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:44:11,036 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 13:44:11,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 13:44:11,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919888240] [2025-03-19 13:44:11,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919888240] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 13:44:11,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106227512] [2025-03-19 13:44:11,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 13:44:11,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 13:44:11,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 13:44:11,039 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 13:44:11,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-19 13:44:11,117 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-03-19 13:44:11,162 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-03-19 13:44:11,162 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 13:44:11,163 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:44:11,166 INFO L256 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-19 13:44:11,177 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 13:44:11,268 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 13:44:11,269 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 13:44:11,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 13:44:11,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106227512] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 13:44:11,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 13:44:11,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2025-03-19 13:44:11,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107296457] [2025-03-19 13:44:11,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 13:44:11,330 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-19 13:44:11,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 13:44:11,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-19 13:44:11,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2025-03-19 13:44:11,331 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:11,331 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 13:44:11,332 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 9 states have internal predecessors, (89), 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) [2025-03-19 13:44:11,332 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:11,332 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 13:44:11,332 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:11,619 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:11,619 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 13:44:11,619 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 13:44:11,626 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-19 13:44:11,823 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2025-03-19 13:44:11,823 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 13:44:11,824 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 13:44:11,824 INFO L85 PathProgramCache]: Analyzing trace with hash 539270758, now seen corresponding path program 2 times [2025-03-19 13:44:11,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 13:44:11,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640179383] [2025-03-19 13:44:11,824 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 13:44:11,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 13:44:11,840 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 84 statements into 2 equivalence classes. [2025-03-19 13:44:11,859 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 82 of 84 statements. [2025-03-19 13:44:11,859 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-19 13:44:11,859 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:44:12,117 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-19 13:44:12,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 13:44:12,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640179383] [2025-03-19 13:44:12,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640179383] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 13:44:12,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 13:44:12,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-19 13:44:12,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82608616] [2025-03-19 13:44:12,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 13:44:12,118 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-19 13:44:12,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 13:44:12,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-19 13:44:12,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-19 13:44:12,118 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:12,118 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 13:44:12,118 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 13:44:12,118 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:12,118 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 13:44:12,118 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 13:44:12,118 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:12,653 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:12,653 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 13:44:12,654 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 13:44:12,654 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-19 13:44:12,654 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-19 13:44:12,655 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 13:44:12,655 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 13:44:12,655 INFO L85 PathProgramCache]: Analyzing trace with hash 704802073, now seen corresponding path program 3 times [2025-03-19 13:44:12,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 13:44:12,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659404742] [2025-03-19 13:44:12,655 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-19 13:44:12,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 13:44:12,670 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 104 statements into 3 equivalence classes. [2025-03-19 13:44:12,737 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 92 of 104 statements. [2025-03-19 13:44:12,737 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-19 13:44:12,738 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:44:12,968 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-03-19 13:44:12,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 13:44:12,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659404742] [2025-03-19 13:44:12,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659404742] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 13:44:12,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093482694] [2025-03-19 13:44:12,968 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-19 13:44:12,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 13:44:12,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 13:44:12,970 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 13:44:12,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-19 13:44:13,042 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 104 statements into 3 equivalence classes. [2025-03-19 13:44:13,087 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 92 of 104 statements. [2025-03-19 13:44:13,088 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-19 13:44:13,088 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:44:13,089 INFO L256 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-19 13:44:13,092 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 13:44:13,235 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-03-19 13:44:13,235 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 13:44:13,338 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-03-19 13:44:13,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093482694] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 13:44:13,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 13:44:13,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2025-03-19 13:44:13,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830580084] [2025-03-19 13:44:13,339 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 13:44:13,339 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-19 13:44:13,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 13:44:13,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-19 13:44:13,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2025-03-19 13:44:13,340 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:13,340 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 13:44:13,340 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.444444444444445) internal successors, (152), 17 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 13:44:13,341 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:13,341 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 13:44:13,341 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 13:44:13,341 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-03-19 13:44:13,341 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:13,744 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:13,744 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 13:44:13,744 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 13:44:13,744 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-19 13:44:13,744 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-19 13:44:13,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-19 13:44:13,948 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 13:44:13,949 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 13:44:13,949 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 13:44:13,949 INFO L85 PathProgramCache]: Analyzing trace with hash -731148583, now seen corresponding path program 4 times [2025-03-19 13:44:13,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 13:44:13,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437769640] [2025-03-19 13:44:13,950 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-19 13:44:13,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 13:44:13,962 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 106 statements into 2 equivalence classes. [2025-03-19 13:44:13,968 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 67 of 106 statements. [2025-03-19 13:44:13,968 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-03-19 13:44:13,968 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:44:14,194 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-19 13:44:14,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 13:44:14,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437769640] [2025-03-19 13:44:14,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437769640] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 13:44:14,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 13:44:14,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-19 13:44:14,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057774900] [2025-03-19 13:44:14,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 13:44:14,195 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-19 13:44:14,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 13:44:14,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-19 13:44:14,196 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2025-03-19 13:44:14,196 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:14,196 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 13:44:14,196 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 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) [2025-03-19 13:44:14,196 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:14,196 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 13:44:14,196 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 13:44:14,196 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-03-19 13:44:14,196 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-03-19 13:44:14,196 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:14,707 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:14,707 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 13:44:14,707 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 13:44:14,707 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-19 13:44:14,707 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-19 13:44:14,707 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-19 13:44:14,708 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-19 13:44:14,708 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 13:44:14,708 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 13:44:14,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1362858664, now seen corresponding path program 5 times [2025-03-19 13:44:14,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 13:44:14,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475920035] [2025-03-19 13:44:14,708 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-19 13:44:14,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 13:44:14,722 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 150 statements into 3 equivalence classes. [2025-03-19 13:44:14,772 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 150 of 150 statements. [2025-03-19 13:44:14,772 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-03-19 13:44:14,772 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:44:15,208 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 41 proven. 10 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-03-19 13:44:15,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 13:44:15,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475920035] [2025-03-19 13:44:15,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475920035] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 13:44:15,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36491967] [2025-03-19 13:44:15,209 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-19 13:44:15,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 13:44:15,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 13:44:15,211 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 13:44:15,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-19 13:44:15,291 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 150 statements into 3 equivalence classes. [2025-03-19 13:44:15,396 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 150 of 150 statements. [2025-03-19 13:44:15,396 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-03-19 13:44:15,396 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:44:15,400 INFO L256 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-19 13:44:15,405 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 13:44:15,654 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 38 proven. 13 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-03-19 13:44:15,656 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 13:44:15,829 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 41 proven. 10 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-03-19 13:44:15,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36491967] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 13:44:15,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 13:44:15,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 31 [2025-03-19 13:44:15,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554873961] [2025-03-19 13:44:15,829 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 13:44:15,830 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2025-03-19 13:44:15,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 13:44:15,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2025-03-19 13:44:15,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=259, Invalid=733, Unknown=0, NotChecked=0, Total=992 [2025-03-19 13:44:15,831 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:15,831 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 13:44:15,831 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 6.59375) internal successors, (211), 31 states have internal predecessors, (211), 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) [2025-03-19 13:44:15,831 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:15,831 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 13:44:15,831 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 13:44:15,831 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-03-19 13:44:15,831 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-03-19 13:44:15,831 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-03-19 13:44:15,831 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:16,409 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:16,409 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 13:44:16,409 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 13:44:16,409 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-19 13:44:16,409 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-19 13:44:16,409 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-19 13:44:16,410 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-19 13:44:16,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-19 13:44:16,614 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 13:44:16,614 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 13:44:16,614 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 13:44:16,614 INFO L85 PathProgramCache]: Analyzing trace with hash -574868442, now seen corresponding path program 6 times [2025-03-19 13:44:16,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 13:44:16,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089972252] [2025-03-19 13:44:16,614 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-19 13:44:16,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 13:44:16,628 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 153 statements into 5 equivalence classes. [2025-03-19 13:44:16,751 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) and asserted 153 of 153 statements. [2025-03-19 13:44:16,751 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2025-03-19 13:44:16,751 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:44:17,775 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 46 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 13:44:17,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 13:44:17,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089972252] [2025-03-19 13:44:17,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089972252] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 13:44:17,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720330172] [2025-03-19 13:44:17,775 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-19 13:44:17,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 13:44:17,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 13:44:17,778 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 13:44:17,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-19 13:44:17,858 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 153 statements into 5 equivalence classes. [2025-03-19 13:44:17,934 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) and asserted 153 of 153 statements. [2025-03-19 13:44:17,934 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2025-03-19 13:44:17,934 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:44:17,937 INFO L256 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-03-19 13:44:17,943 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 13:44:18,571 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 49 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 13:44:18,571 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 13:44:19,151 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 55 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 13:44:19,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720330172] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 13:44:19,152 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 13:44:19,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 20, 20] total 73 [2025-03-19 13:44:19,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603270460] [2025-03-19 13:44:19,152 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 13:44:19,152 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2025-03-19 13:44:19,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 13:44:19,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2025-03-19 13:44:19,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=888, Invalid=4514, Unknown=0, NotChecked=0, Total=5402 [2025-03-19 13:44:19,155 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:19,155 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 13:44:19,156 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 5.45945945945946) internal successors, (404), 73 states have internal predecessors, (404), 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) [2025-03-19 13:44:19,156 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:19,156 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 13:44:19,156 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 13:44:19,156 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-03-19 13:44:19,156 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-03-19 13:44:19,156 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-03-19 13:44:19,156 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-03-19 13:44:19,156 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:19,804 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:19,804 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 13:44:19,804 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 13:44:19,804 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-19 13:44:19,804 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-19 13:44:19,804 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-19 13:44:19,804 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-19 13:44:19,804 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-03-19 13:44:19,811 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-19 13:44:20,007 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-03-19 13:44:20,007 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 13:44:20,007 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 13:44:20,008 INFO L85 PathProgramCache]: Analyzing trace with hash -2037115816, now seen corresponding path program 7 times [2025-03-19 13:44:20,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 13:44:20,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944151012] [2025-03-19 13:44:20,008 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-19 13:44:20,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 13:44:20,024 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-03-19 13:44:20,073 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-03-19 13:44:20,073 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 13:44:20,073 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:44:20,799 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 55 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 13:44:20,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 13:44:20,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944151012] [2025-03-19 13:44:20,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944151012] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 13:44:20,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131722179] [2025-03-19 13:44:20,800 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-19 13:44:20,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 13:44:20,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 13:44:20,802 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 13:44:20,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-19 13:44:20,886 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-03-19 13:44:20,951 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-03-19 13:44:20,951 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 13:44:20,951 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:44:20,954 INFO L256 TraceCheckSpWp]: Trace formula consists of 812 conjuncts, 58 conjuncts are in the unsatisfiable core [2025-03-19 13:44:20,957 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 13:44:22,093 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 13:44:22,093 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 13:44:22,790 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2025-03-19 13:44:22,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131722179] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 13:44:22,790 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 13:44:22,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 40, 28] total 91 [2025-03-19 13:44:22,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255074723] [2025-03-19 13:44:22,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 13:44:22,791 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 91 states [2025-03-19 13:44:22,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 13:44:22,792 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2025-03-19 13:44:22,794 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1522, Invalid=6668, Unknown=0, NotChecked=0, Total=8190 [2025-03-19 13:44:22,794 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:22,794 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 13:44:22,794 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 91 states, 91 states have (on average 4.725274725274725) internal successors, (430), 91 states have internal predecessors, (430), 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) [2025-03-19 13:44:22,794 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:22,794 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 13:44:22,794 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 13:44:22,794 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-03-19 13:44:22,794 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-03-19 13:44:22,794 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-03-19 13:44:22,794 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-03-19 13:44:22,794 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-03-19 13:44:22,794 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:24,354 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:24,354 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 13:44:24,354 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 13:44:24,354 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-19 13:44:24,354 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-19 13:44:24,355 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 13:44:24,355 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-19 13:44:24,355 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-03-19 13:44:24,358 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-03-19 13:44:24,364 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-19 13:44:24,558 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 13:44:24,558 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 13:44:24,559 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 13:44:24,559 INFO L85 PathProgramCache]: Analyzing trace with hash -677795414, now seen corresponding path program 8 times [2025-03-19 13:44:24,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 13:44:24,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717978056] [2025-03-19 13:44:24,559 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 13:44:24,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 13:44:24,574 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 191 statements into 2 equivalence classes. [2025-03-19 13:44:24,608 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 191 of 191 statements. [2025-03-19 13:44:24,608 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 13:44:24,608 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:44:26,115 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 300 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 13:44:26,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 13:44:26,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717978056] [2025-03-19 13:44:26,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717978056] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 13:44:26,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728981711] [2025-03-19 13:44:26,116 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 13:44:26,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 13:44:26,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 13:44:26,117 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 13:44:26,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-19 13:44:26,207 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 191 statements into 2 equivalence classes. [2025-03-19 13:44:26,278 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 191 of 191 statements. [2025-03-19 13:44:26,278 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 13:44:26,278 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:44:26,281 INFO L256 TraceCheckSpWp]: Trace formula consists of 941 conjuncts, 33 conjuncts are in the unsatisfiable core [2025-03-19 13:44:26,284 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 13:44:27,144 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 264 proven. 109 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-19 13:44:27,144 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 13:44:27,950 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 282 proven. 91 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-19 13:44:27,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728981711] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 13:44:27,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 13:44:27,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 29, 29] total 104 [2025-03-19 13:44:27,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915614377] [2025-03-19 13:44:27,950 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 13:44:27,951 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2025-03-19 13:44:27,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 13:44:27,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2025-03-19 13:44:27,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1771, Invalid=9149, Unknown=0, NotChecked=0, Total=10920 [2025-03-19 13:44:27,954 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:27,954 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 13:44:27,954 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 105 states have (on average 4.742857142857143) internal successors, (498), 104 states have internal predecessors, (498), 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) [2025-03-19 13:44:27,954 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:27,954 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 13:44:27,954 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 13:44:27,954 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-03-19 13:44:27,954 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-03-19 13:44:27,954 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 13:44:27,954 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-03-19 13:44:27,954 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-03-19 13:44:27,954 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2025-03-19 13:44:27,954 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:28,608 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:28,608 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 13:44:28,608 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 13:44:28,608 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-19 13:44:28,608 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-19 13:44:28,608 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 13:44:28,608 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-19 13:44:28,608 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-03-19 13:44:28,608 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-03-19 13:44:28,609 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-03-19 13:44:28,615 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-19 13:44:28,810 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-03-19 13:44:28,810 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 13:44:28,810 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 13:44:28,810 INFO L85 PathProgramCache]: Analyzing trace with hash -782987286, now seen corresponding path program 9 times [2025-03-19 13:44:28,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 13:44:28,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303850232] [2025-03-19 13:44:28,810 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-19 13:44:28,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 13:44:28,825 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 193 statements into 9 equivalence classes. [2025-03-19 13:44:29,185 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 190 of 193 statements. [2025-03-19 13:44:29,185 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-03-19 13:44:29,185 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:44:29,771 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 18 proven. 87 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2025-03-19 13:44:29,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 13:44:29,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303850232] [2025-03-19 13:44:29,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303850232] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 13:44:29,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117391468] [2025-03-19 13:44:29,772 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-19 13:44:29,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 13:44:29,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 13:44:29,773 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 13:44:29,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-19 13:44:29,890 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 193 statements into 9 equivalence classes. [2025-03-19 13:44:30,046 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 190 of 193 statements. [2025-03-19 13:44:30,046 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-03-19 13:44:30,046 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:44:30,050 INFO L256 TraceCheckSpWp]: Trace formula consists of 932 conjuncts, 36 conjuncts are in the unsatisfiable core [2025-03-19 13:44:30,053 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 13:44:30,707 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 18 proven. 282 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2025-03-19 13:44:30,707 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 13:44:30,926 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 10 proven. 95 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2025-03-19 13:44:30,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117391468] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 13:44:30,926 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 13:44:30,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 37, 10] total 50 [2025-03-19 13:44:30,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585340692] [2025-03-19 13:44:30,927 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 13:44:30,927 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2025-03-19 13:44:30,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 13:44:30,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2025-03-19 13:44:30,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=341, Invalid=2109, Unknown=0, NotChecked=0, Total=2450 [2025-03-19 13:44:30,928 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:30,929 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 13:44:30,929 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 6.8) internal successors, (340), 50 states have internal predecessors, (340), 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) [2025-03-19 13:44:30,929 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:30,929 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 13:44:30,929 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 13:44:30,929 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-03-19 13:44:30,929 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-03-19 13:44:30,929 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 13:44:30,929 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-03-19 13:44:30,929 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-03-19 13:44:30,929 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2025-03-19 13:44:30,929 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2025-03-19 13:44:30,929 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:32,890 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:32,890 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 13:44:32,890 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 13:44:32,890 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-19 13:44:32,890 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-19 13:44:32,890 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 13:44:32,890 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-19 13:44:32,890 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-03-19 13:44:32,890 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-03-19 13:44:32,890 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-03-19 13:44:32,890 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2025-03-19 13:44:32,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-19 13:44:33,090 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 13:44:33,091 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 13:44:33,091 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 13:44:33,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1433538265, now seen corresponding path program 10 times [2025-03-19 13:44:33,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 13:44:33,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560248041] [2025-03-19 13:44:33,091 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-19 13:44:33,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 13:44:33,109 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 245 statements into 2 equivalence classes. [2025-03-19 13:44:33,143 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 245 of 245 statements. [2025-03-19 13:44:33,143 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-19 13:44:33,143 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:44:34,405 INFO L134 CoverageAnalysis]: Checked inductivity of 839 backedges. 684 proven. 147 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-19 13:44:34,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 13:44:34,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560248041] [2025-03-19 13:44:34,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560248041] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 13:44:34,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765722814] [2025-03-19 13:44:34,405 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-19 13:44:34,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 13:44:34,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 13:44:34,407 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 13:44:34,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-19 13:44:34,506 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 245 statements into 2 equivalence classes. [2025-03-19 13:44:34,590 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 245 of 245 statements. [2025-03-19 13:44:34,590 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-19 13:44:34,590 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:44:34,594 INFO L256 TraceCheckSpWp]: Trace formula consists of 1154 conjuncts, 44 conjuncts are in the unsatisfiable core [2025-03-19 13:44:34,597 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 13:44:35,659 INFO L134 CoverageAnalysis]: Checked inductivity of 839 backedges. 620 proven. 219 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 13:44:35,659 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 13:44:36,861 INFO L134 CoverageAnalysis]: Checked inductivity of 839 backedges. 714 proven. 125 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 13:44:36,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765722814] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 13:44:36,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 13:44:36,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 41, 41] total 120 [2025-03-19 13:44:36,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839128680] [2025-03-19 13:44:36,861 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 13:44:36,862 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 121 states [2025-03-19 13:44:36,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 13:44:36,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 121 interpolants. [2025-03-19 13:44:36,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2555, Invalid=11965, Unknown=0, NotChecked=0, Total=14520 [2025-03-19 13:44:36,866 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:36,866 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 13:44:36,866 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 121 states, 121 states have (on average 5.917355371900826) internal successors, (716), 120 states have internal predecessors, (716), 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) [2025-03-19 13:44:36,866 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:36,866 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 13:44:36,866 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 13:44:36,866 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-03-19 13:44:36,866 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-03-19 13:44:36,866 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 13:44:36,866 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-03-19 13:44:36,866 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-03-19 13:44:36,866 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2025-03-19 13:44:36,867 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2025-03-19 13:44:36,867 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2025-03-19 13:44:36,867 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:37,542 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:44:37,542 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 13:44:37,542 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 13:44:37,542 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-19 13:44:37,542 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-19 13:44:37,542 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 13:44:37,542 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-19 13:44:37,542 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-03-19 13:44:37,542 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-03-19 13:44:37,542 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-03-19 13:44:37,542 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2025-03-19 13:44:37,543 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-03-19 13:44:37,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-19 13:44:37,744 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 13:44:37,744 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 13:44:37,744 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 13:44:37,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1984754571, now seen corresponding path program 11 times [2025-03-19 13:44:37,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 13:44:37,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131820111] [2025-03-19 13:44:37,744 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-19 13:44:37,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 13:44:37,763 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 254 statements into 13 equivalence classes. [2025-03-19 13:44:38,045 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) and asserted 254 of 254 statements. [2025-03-19 13:44:38,046 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2025-03-19 13:44:38,046 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:44:54,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1019 backedges. 0 proven. 451 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2025-03-19 13:44:54,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 13:44:54,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131820111] [2025-03-19 13:44:54,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131820111] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 13:44:54,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985121907] [2025-03-19 13:44:54,190 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-19 13:44:54,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 13:44:54,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 13:44:54,192 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 13:44:54,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-19 13:44:54,296 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 254 statements into 13 equivalence classes. [2025-03-19 13:45:03,837 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) and asserted 254 of 254 statements. [2025-03-19 13:45:03,837 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2025-03-19 13:45:03,837 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:45:03,856 INFO L256 TraceCheckSpWp]: Trace formula consists of 1235 conjuncts, 473 conjuncts are in the unsatisfiable core [2025-03-19 13:45:03,863 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 13:45:04,182 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-19 13:45:04,238 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-19 13:45:04,283 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-19 13:45:04,329 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-19 13:45:04,370 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-19 13:45:04,416 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-19 13:45:04,463 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-19 13:45:04,515 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-19 13:45:04,567 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-19 13:45:04,617 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-19 13:45:04,660 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-19 13:45:04,704 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-19 13:45:04,749 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-19 13:45:04,799 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-19 13:45:04,842 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-19 13:45:04,890 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-19 13:45:04,939 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-19 13:45:51,575 WARN L286 SmtUtils]: Spent 19.22s on a formula simplification. DAG size of input: 1241 DAG size of output: 669 (called from [L 323] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2025-03-19 13:45:51,576 INFO L325 Elim1Store]: treesize reduction 2024, result has 52.2 percent of original size [2025-03-19 13:45:51,576 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 46 select indices, 46 select index equivalence classes, 0 disjoint index pairs (out of 1035 index pairs), introduced 46 new quantified variables, introduced 1035 case distinctions, treesize of input 402 treesize of output 2266 [2025-03-19 13:46:14,929 INFO L134 CoverageAnalysis]: Checked inductivity of 1019 backedges. 0 proven. 1019 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 13:46:14,930 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 13:46:41,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1019 backedges. 0 proven. 719 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2025-03-19 13:46:41,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985121907] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 13:46:41,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 13:46:41,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 123, 99] total 263 [2025-03-19 13:46:41,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096771743] [2025-03-19 13:46:41,812 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 13:46:41,813 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 263 states [2025-03-19 13:46:41,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 13:46:41,815 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 263 interpolants. [2025-03-19 13:46:41,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6239, Invalid=62667, Unknown=0, NotChecked=0, Total=68906 [2025-03-19 13:46:41,821 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:46:41,821 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 13:46:41,822 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 263 states, 263 states have (on average 2.247148288973384) internal successors, (591), 263 states have internal predecessors, (591), 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) [2025-03-19 13:46:41,822 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:46:41,822 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 13:46:41,822 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 13:46:41,822 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-03-19 13:46:41,822 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-03-19 13:46:41,822 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 13:46:41,822 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-03-19 13:46:41,822 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-03-19 13:46:41,822 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2025-03-19 13:46:41,822 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2025-03-19 13:46:41,822 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2025-03-19 13:46:41,822 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2025-03-19 13:46:41,822 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:48:32,002 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:48:32,002 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 13:48:32,002 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 13:48:32,002 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-19 13:48:32,002 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-19 13:48:32,002 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 13:48:32,002 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-19 13:48:32,002 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-03-19 13:48:32,002 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-03-19 13:48:32,002 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-03-19 13:48:32,002 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2025-03-19 13:48:32,002 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-03-19 13:48:32,003 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 168 states. [2025-03-19 13:48:32,026 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-19 13:48:32,203 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-03-19 13:48:32,203 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 13:48:32,204 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 13:48:32,204 INFO L85 PathProgramCache]: Analyzing trace with hash -693009188, now seen corresponding path program 12 times [2025-03-19 13:48:32,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 13:48:32,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845611196] [2025-03-19 13:48:32,204 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-19 13:48:32,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 13:48:32,225 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 306 statements into 13 equivalence classes. [2025-03-19 13:48:32,843 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) and asserted 306 of 306 statements. [2025-03-19 13:48:32,843 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2025-03-19 13:48:32,843 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:48:34,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1232 backedges. 932 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 13:48:34,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 13:48:34,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845611196] [2025-03-19 13:48:34,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845611196] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 13:48:34,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397644784] [2025-03-19 13:48:34,877 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-19 13:48:34,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 13:48:34,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 13:48:34,879 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 13:48:34,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-19 13:48:35,006 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 306 statements into 13 equivalence classes. [2025-03-19 13:48:36,093 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) and asserted 306 of 306 statements. [2025-03-19 13:48:36,093 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2025-03-19 13:48:36,093 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:48:36,103 INFO L256 TraceCheckSpWp]: Trace formula consists of 1430 conjuncts, 62 conjuncts are in the unsatisfiable core [2025-03-19 13:48:36,107 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 13:48:37,996 INFO L134 CoverageAnalysis]: Checked inductivity of 1232 backedges. 894 proven. 330 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-19 13:48:37,996 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 13:48:40,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1232 backedges. 915 proven. 309 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-19 13:48:40,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397644784] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 13:48:40,346 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 13:48:40,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 58, 58] total 169 [2025-03-19 13:48:40,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369302310] [2025-03-19 13:48:40,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 13:48:40,347 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 170 states [2025-03-19 13:48:40,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 13:48:40,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 170 interpolants. [2025-03-19 13:48:40,352 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5365, Invalid=23365, Unknown=0, NotChecked=0, Total=28730 [2025-03-19 13:48:40,352 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:48:40,352 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 13:48:40,352 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 170 states, 170 states have (on average 5.211764705882353) internal successors, (886), 169 states have internal predecessors, (886), 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) [2025-03-19 13:48:40,353 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:48:40,353 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 13:48:40,353 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 13:48:40,353 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-03-19 13:48:40,353 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-03-19 13:48:40,353 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 13:48:40,353 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-03-19 13:48:40,353 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-03-19 13:48:40,353 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2025-03-19 13:48:40,353 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2025-03-19 13:48:40,353 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2025-03-19 13:48:40,353 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2025-03-19 13:48:40,353 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 168 states. [2025-03-19 13:48:40,353 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:48:41,743 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:48:41,744 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 13:48:41,744 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 13:48:41,744 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-19 13:48:41,744 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-19 13:48:41,744 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 13:48:41,744 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-19 13:48:41,744 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-03-19 13:48:41,744 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-03-19 13:48:41,744 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-03-19 13:48:41,744 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2025-03-19 13:48:41,744 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-03-19 13:48:41,744 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 168 states. [2025-03-19 13:48:41,744 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2025-03-19 13:48:41,755 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-19 13:48:41,944 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 13:48:41,944 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 13:48:41,945 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 13:48:41,945 INFO L85 PathProgramCache]: Analyzing trace with hash 916499420, now seen corresponding path program 13 times [2025-03-19 13:48:41,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 13:48:41,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544872459] [2025-03-19 13:48:41,945 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-19 13:48:41,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 13:48:41,969 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 314 statements into 1 equivalence classes. [2025-03-19 13:48:42,024 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 314 of 314 statements. [2025-03-19 13:48:42,025 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 13:48:42,025 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:48:44,502 INFO L134 CoverageAnalysis]: Checked inductivity of 1460 backedges. 465 proven. 995 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 13:48:44,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 13:48:44,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544872459] [2025-03-19 13:48:44,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544872459] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 13:48:44,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [171822224] [2025-03-19 13:48:44,503 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-19 13:48:44,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 13:48:44,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 13:48:44,505 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 13:48:44,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-19 13:48:44,631 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 314 statements into 1 equivalence classes. [2025-03-19 13:48:44,734 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 314 of 314 statements. [2025-03-19 13:48:44,734 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 13:48:44,734 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:48:44,739 INFO L256 TraceCheckSpWp]: Trace formula consists of 1502 conjuncts, 66 conjuncts are in the unsatisfiable core [2025-03-19 13:48:44,743 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 13:48:47,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1460 backedges. 496 proven. 964 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 13:48:47,440 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 13:48:49,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1460 backedges. 528 proven. 932 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 13:48:49,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [171822224] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 13:48:49,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 13:48:49,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63, 63] total 160 [2025-03-19 13:48:49,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512757567] [2025-03-19 13:48:49,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 13:48:49,543 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 161 states [2025-03-19 13:48:49,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 13:48:49,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 161 interpolants. [2025-03-19 13:48:49,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5899, Invalid=19861, Unknown=0, NotChecked=0, Total=25760 [2025-03-19 13:48:49,547 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:48:49,547 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 13:48:49,547 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 161 states, 161 states have (on average 4.565217391304348) internal successors, (735), 160 states have internal predecessors, (735), 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) [2025-03-19 13:48:49,547 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:48:49,547 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 13:48:49,547 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 13:48:49,547 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-03-19 13:48:49,547 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-03-19 13:48:49,547 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 13:48:49,547 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-03-19 13:48:49,547 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-03-19 13:48:49,547 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2025-03-19 13:48:49,547 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2025-03-19 13:48:49,547 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2025-03-19 13:48:49,547 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2025-03-19 13:48:49,547 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 168 states. [2025-03-19 13:48:49,547 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2025-03-19 13:48:49,547 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:48:54,327 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:48:54,327 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 13:48:54,327 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 13:48:54,327 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-19 13:48:54,327 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-19 13:48:54,327 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 13:48:54,327 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-19 13:48:54,327 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-03-19 13:48:54,327 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-03-19 13:48:54,327 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-03-19 13:48:54,327 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2025-03-19 13:48:54,327 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-03-19 13:48:54,327 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 170 states. [2025-03-19 13:48:54,328 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2025-03-19 13:48:54,328 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2025-03-19 13:48:54,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-03-19 13:48:54,528 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-03-19 13:48:54,529 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 13:48:54,529 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 13:48:54,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1398089835, now seen corresponding path program 14 times [2025-03-19 13:48:54,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 13:48:54,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85112657] [2025-03-19 13:48:54,529 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 13:48:54,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 13:48:54,558 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 406 statements into 2 equivalence classes. [2025-03-19 13:48:54,638 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 406 of 406 statements. [2025-03-19 13:48:54,638 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 13:48:54,638 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:49:01,865 INFO L134 CoverageAnalysis]: Checked inductivity of 3182 backedges. 2654 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 13:49:01,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 13:49:01,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85112657] [2025-03-19 13:49:01,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85112657] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 13:49:01,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345287428] [2025-03-19 13:49:01,866 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 13:49:01,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 13:49:01,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 13:49:01,868 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 13:49:01,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-19 13:49:02,027 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 406 statements into 2 equivalence classes. [2025-03-19 13:49:02,158 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 406 of 406 statements. [2025-03-19 13:49:02,158 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 13:49:02,158 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:49:02,165 INFO L256 TraceCheckSpWp]: Trace formula consists of 1847 conjuncts, 70 conjuncts are in the unsatisfiable core [2025-03-19 13:49:02,170 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 13:49:05,543 INFO L134 CoverageAnalysis]: Checked inductivity of 3182 backedges. 2541 proven. 573 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2025-03-19 13:49:05,543 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 13:49:09,645 INFO L134 CoverageAnalysis]: Checked inductivity of 3182 backedges. 2586 proven. 528 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2025-03-19 13:49:09,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345287428] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 13:49:09,646 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 13:49:09,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [117, 66, 66] total 247 [2025-03-19 13:49:09,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162274170] [2025-03-19 13:49:09,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 13:49:09,647 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 248 states [2025-03-19 13:49:09,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 13:49:09,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 248 interpolants. [2025-03-19 13:49:09,655 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9391, Invalid=51865, Unknown=0, NotChecked=0, Total=61256 [2025-03-19 13:49:09,655 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:49:09,655 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 13:49:09,655 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 248 states, 248 states have (on average 4.181451612903226) internal successors, (1037), 247 states have internal predecessors, (1037), 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) [2025-03-19 13:49:09,655 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:49:09,655 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 13:49:09,656 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 13:49:09,656 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-03-19 13:49:09,656 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-03-19 13:49:09,656 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 13:49:09,656 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-03-19 13:49:09,656 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-03-19 13:49:09,656 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2025-03-19 13:49:09,656 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2025-03-19 13:49:09,656 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2025-03-19 13:49:09,656 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2025-03-19 13:49:09,656 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 170 states. [2025-03-19 13:49:09,656 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2025-03-19 13:49:09,656 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2025-03-19 13:49:09,656 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:49:11,483 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:49:11,483 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 13:49:11,483 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 13:49:11,483 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-19 13:49:11,483 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-19 13:49:11,483 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 13:49:11,483 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-19 13:49:11,483 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-03-19 13:49:11,483 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-03-19 13:49:11,483 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-03-19 13:49:11,483 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2025-03-19 13:49:11,483 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-03-19 13:49:11,483 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 170 states. [2025-03-19 13:49:11,483 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2025-03-19 13:49:11,483 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2025-03-19 13:49:11,487 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2025-03-19 13:49:11,495 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-03-19 13:49:11,687 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-03-19 13:49:11,687 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 13:49:11,688 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 13:49:11,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1814476835, now seen corresponding path program 15 times [2025-03-19 13:49:11,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 13:49:11,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188798317] [2025-03-19 13:49:11,688 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-19 13:49:11,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 13:49:11,714 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 407 statements into 19 equivalence classes. [2025-03-19 13:49:13,050 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) and asserted 407 of 407 statements. [2025-03-19 13:49:13,050 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2025-03-19 13:49:13,050 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:49:21,097 INFO L134 CoverageAnalysis]: Checked inductivity of 3215 backedges. 2654 proven. 561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 13:49:21,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 13:49:21,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188798317] [2025-03-19 13:49:21,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188798317] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 13:49:21,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161661104] [2025-03-19 13:49:21,098 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-19 13:49:21,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 13:49:21,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 13:49:21,100 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 13:49:21,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-19 13:49:21,258 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 407 statements into 19 equivalence classes. [2025-03-19 13:49:25,847 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) and asserted 407 of 407 statements. [2025-03-19 13:49:25,847 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2025-03-19 13:49:25,847 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:49:25,863 INFO L256 TraceCheckSpWp]: Trace formula consists of 1856 conjuncts, 78 conjuncts are in the unsatisfiable core [2025-03-19 13:49:25,868 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 13:49:29,835 INFO L134 CoverageAnalysis]: Checked inductivity of 3215 backedges. 2592 proven. 615 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-19 13:49:29,835 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 13:49:34,692 INFO L134 CoverageAnalysis]: Checked inductivity of 3215 backedges. 2646 proven. 561 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-19 13:49:34,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [161661104] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 13:49:34,692 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 13:49:34,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [119, 74, 74] total 265 [2025-03-19 13:49:34,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151912690] [2025-03-19 13:49:34,693 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 13:49:34,693 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 266 states [2025-03-19 13:49:34,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 13:49:34,695 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 266 interpolants. [2025-03-19 13:49:34,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11368, Invalid=59122, Unknown=0, NotChecked=0, Total=70490 [2025-03-19 13:49:34,700 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:49:34,701 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 13:49:34,701 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 266 states, 266 states have (on average 4.319548872180451) internal successors, (1149), 265 states have internal predecessors, (1149), 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) [2025-03-19 13:49:34,701 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:49:34,701 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 13:49:34,701 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 13:49:34,701 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-03-19 13:49:34,701 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-03-19 13:49:34,701 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 13:49:34,701 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-03-19 13:49:34,701 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-03-19 13:49:34,701 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2025-03-19 13:49:34,701 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2025-03-19 13:49:34,701 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2025-03-19 13:49:34,701 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2025-03-19 13:49:34,701 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 170 states. [2025-03-19 13:49:34,701 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2025-03-19 13:49:34,701 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2025-03-19 13:49:34,701 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2025-03-19 13:49:34,701 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:49:36,621 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:49:36,621 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 13:49:36,622 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 13:49:36,622 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-19 13:49:36,622 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-19 13:49:36,622 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 13:49:36,622 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-19 13:49:36,622 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-03-19 13:49:36,622 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-03-19 13:49:36,622 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-03-19 13:49:36,622 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2025-03-19 13:49:36,622 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-03-19 13:49:36,622 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 170 states. [2025-03-19 13:49:36,622 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2025-03-19 13:49:36,622 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2025-03-19 13:49:36,622 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2025-03-19 13:49:36,622 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2025-03-19 13:49:36,638 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-03-19 13:49:36,822 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-03-19 13:49:36,822 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 13:49:36,823 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 13:49:36,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1046839659, now seen corresponding path program 16 times [2025-03-19 13:49:36,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 13:49:36,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418620915] [2025-03-19 13:49:36,823 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-19 13:49:36,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 13:49:36,850 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 414 statements into 2 equivalence classes. [2025-03-19 13:49:36,915 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 414 of 414 statements. [2025-03-19 13:49:36,915 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-19 13:49:36,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:49:41,737 INFO L134 CoverageAnalysis]: Checked inductivity of 3474 backedges. 2592 proven. 874 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-19 13:49:41,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 13:49:41,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418620915] [2025-03-19 13:49:41,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418620915] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 13:49:41,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351669321] [2025-03-19 13:49:41,737 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-19 13:49:41,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 13:49:41,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 13:49:41,739 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 13:49:41,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-19 13:49:41,913 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 414 statements into 2 equivalence classes. [2025-03-19 13:49:42,060 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 414 of 414 statements. [2025-03-19 13:49:42,060 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-19 13:49:42,060 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:49:42,072 INFO L256 TraceCheckSpWp]: Trace formula consists of 1919 conjuncts, 87 conjuncts are in the unsatisfiable core [2025-03-19 13:49:42,077 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 13:49:45,800 INFO L134 CoverageAnalysis]: Checked inductivity of 3474 backedges. 2592 proven. 874 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-19 13:49:45,801 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 13:49:49,031 INFO L134 CoverageAnalysis]: Checked inductivity of 3474 backedges. 2646 proven. 820 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-19 13:49:49,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351669321] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 13:49:49,031 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 13:49:49,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [83, 84, 84] total 209 [2025-03-19 13:49:49,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642879989] [2025-03-19 13:49:49,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 13:49:49,032 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 210 states [2025-03-19 13:49:49,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 13:49:49,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 210 interpolants. [2025-03-19 13:49:49,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10669, Invalid=33221, Unknown=0, NotChecked=0, Total=43890 [2025-03-19 13:49:49,040 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:49:49,040 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 13:49:49,040 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 210 states, 210 states have (on average 5.566666666666666) internal successors, (1169), 209 states have internal predecessors, (1169), 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) [2025-03-19 13:49:49,040 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:49:49,040 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 13:49:49,040 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 13:49:49,040 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-03-19 13:49:49,041 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-03-19 13:49:49,041 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 13:49:49,041 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-03-19 13:49:49,041 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-03-19 13:49:49,041 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2025-03-19 13:49:49,041 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2025-03-19 13:49:49,041 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2025-03-19 13:49:49,041 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2025-03-19 13:49:49,041 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 170 states. [2025-03-19 13:49:49,041 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2025-03-19 13:49:49,041 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2025-03-19 13:49:49,041 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2025-03-19 13:49:49,041 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2025-03-19 13:49:49,041 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:49:50,789 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 13:49:50,789 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 13:49:50,789 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 13:49:50,789 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-19 13:49:50,789 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-19 13:49:50,789 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 13:49:50,789 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-19 13:49:50,789 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-03-19 13:49:50,789 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-03-19 13:49:50,789 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-03-19 13:49:50,789 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2025-03-19 13:49:50,789 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-03-19 13:49:50,789 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 170 states. [2025-03-19 13:49:50,789 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2025-03-19 13:49:50,789 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2025-03-19 13:49:50,789 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2025-03-19 13:49:50,789 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2025-03-19 13:49:50,789 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2025-03-19 13:49:50,798 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-03-19 13:49:50,990 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-19 13:49:50,990 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 13:49:50,990 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 13:49:50,990 INFO L85 PathProgramCache]: Analyzing trace with hash 868798549, now seen corresponding path program 17 times [2025-03-19 13:49:50,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 13:49:50,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054865629] [2025-03-19 13:49:50,990 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-19 13:49:50,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 13:49:51,020 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 416 statements into 22 equivalence classes. [2025-03-19 13:49:51,942 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 22 check-sat command(s) and asserted 416 of 416 statements. [2025-03-19 13:49:51,942 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 22 check-sat command(s) [2025-03-19 13:49:51,942 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:51:05,092 INFO L134 CoverageAnalysis]: Checked inductivity of 3557 backedges. 0 proven. 3557 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 13:51:05,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 13:51:05,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054865629] [2025-03-19 13:51:05,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054865629] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 13:51:05,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584042907] [2025-03-19 13:51:05,093 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-19 13:51:05,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 13:51:05,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 13:51:05,096 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 13:51:05,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-19 13:51:05,279 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 416 statements into 22 equivalence classes. [2025-03-19 13:51:33,424 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 22 check-sat command(s) and asserted 416 of 416 statements. [2025-03-19 13:51:33,424 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 22 check-sat command(s) [2025-03-19 13:51:33,424 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 13:51:33,462 INFO L256 TraceCheckSpWp]: Trace formula consists of 1937 conjuncts, 758 conjuncts are in the unsatisfiable core [2025-03-19 13:51:33,470 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 13:52:49,496 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-19 13:52:49,496 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 42 select indices, 42 select index equivalence classes, 0 disjoint index pairs (out of 861 index pairs), introduced 42 new quantified variables, introduced 861 case distinctions, treesize of input 588 treesize of output 422 [2025-03-19 13:52:50,020 INFO L134 CoverageAnalysis]: Checked inductivity of 3557 backedges. 0 proven. 3557 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 13:52:50,020 INFO L312 TraceCheckSpWp]: Computing backward predicates... Killed by 15