./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-bad-three-array-sum-alt.wvr.c --full-output --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking DEFAULT --traceabstraction.tracecheck.mode.for.conditional.commutativity GENERATOR -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b86fb0b7 Calling Ultimate with: /root/.sdkman/candidates/java/current/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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/weaver/popl20-bad-three-array-sum-alt.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 20832c4ec3f8ccecbcf7cfcec0aecbbc925bfb9e6d8397db46b5825bb40681b3 --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking DEFAULT --traceabstraction.tracecheck.mode.for.conditional.commutativity GENERATOR -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.conditional-comm-b86fb0b-m [2024-10-17 01:54:22,755 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-17 01:54:22,841 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-17 01:54:22,846 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-17 01:54:22,848 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-17 01:54:22,873 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-17 01:54:22,873 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-17 01:54:22,874 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-17 01:54:22,874 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-17 01:54:22,874 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-17 01:54:22,875 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-17 01:54:22,875 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-17 01:54:22,876 INFO L153 SettingsManager]: * Use SBE=true [2024-10-17 01:54:22,880 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-17 01:54:22,880 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-17 01:54:22,880 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-17 01:54:22,880 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-17 01:54:22,881 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-17 01:54:22,881 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-17 01:54:22,881 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-17 01:54:22,881 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-17 01:54:22,882 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-17 01:54:22,883 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-17 01:54:22,883 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-17 01:54:22,883 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-17 01:54:22,884 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-17 01:54:22,884 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-17 01:54:22,884 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-17 01:54:22,884 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-17 01:54:22,884 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-17 01:54:22,885 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 01:54:22,885 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-17 01:54:22,885 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-17 01:54:22,885 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-17 01:54:22,885 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-17 01:54:22,886 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-17 01:54:22,886 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-17 01:54:22,886 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-17 01:54:22,887 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-17 01:54:22,887 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-17 01:54:22,887 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-17 01:54:22,888 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.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 -> 20832c4ec3f8ccecbcf7cfcec0aecbbc925bfb9e6d8397db46b5825bb40681b3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> COUNTEREXAMPLE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> DEFAULT Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: TraceCheck mode for conditional commutativity -> GENERATOR [2024-10-17 01:54:23,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-17 01:54:23,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-17 01:54:23,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-17 01:54:23,149 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-17 01:54:23,149 INFO L274 PluginConnector]: CDTParser initialized [2024-10-17 01:54:23,150 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-three-array-sum-alt.wvr.c [2024-10-17 01:54:24,572 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-17 01:54:24,777 INFO L384 CDTParser]: Found 1 translation units. [2024-10-17 01:54:24,777 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-three-array-sum-alt.wvr.c [2024-10-17 01:54:24,788 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/602457169/d576c646be144db980a4c98450c75fc3/FLAGcb795f68a [2024-10-17 01:54:24,802 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/602457169/d576c646be144db980a4c98450c75fc3 [2024-10-17 01:54:24,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-17 01:54:24,807 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-17 01:54:24,809 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-17 01:54:24,810 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-17 01:54:24,814 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-17 01:54:24,815 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 01:54:24" (1/1) ... [2024-10-17 01:54:24,816 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7277ba22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 01:54:24, skipping insertion in model container [2024-10-17 01:54:24,817 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 01:54:24" (1/1) ... [2024-10-17 01:54:24,841 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-17 01:54:25,029 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-three-array-sum-alt.wvr.c[2451,2464] [2024-10-17 01:54:25,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 01:54:25,055 INFO L200 MainTranslator]: Completed pre-run [2024-10-17 01:54:25,084 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-three-array-sum-alt.wvr.c[2451,2464] [2024-10-17 01:54:25,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 01:54:25,112 INFO L204 MainTranslator]: Completed translation [2024-10-17 01:54:25,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 01:54:25 WrapperNode [2024-10-17 01:54:25,113 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-17 01:54:25,114 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-17 01:54:25,114 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-17 01:54:25,115 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-17 01:54:25,121 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 01:54:25" (1/1) ... [2024-10-17 01:54:25,133 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 01:54:25" (1/1) ... [2024-10-17 01:54:25,165 INFO L138 Inliner]: procedures = 25, calls = 30, calls flagged for inlining = 15, calls inlined = 27, statements flattened = 265 [2024-10-17 01:54:25,165 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-17 01:54:25,166 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-17 01:54:25,166 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-17 01:54:25,166 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-17 01:54:25,176 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 01:54:25" (1/1) ... [2024-10-17 01:54:25,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 01:54:25" (1/1) ... [2024-10-17 01:54:25,179 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 01:54:25" (1/1) ... [2024-10-17 01:54:25,181 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 01:54:25" (1/1) ... [2024-10-17 01:54:25,193 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 01:54:25" (1/1) ... [2024-10-17 01:54:25,201 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 01:54:25" (1/1) ... [2024-10-17 01:54:25,207 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 01:54:25" (1/1) ... [2024-10-17 01:54:25,208 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 01:54:25" (1/1) ... [2024-10-17 01:54:25,215 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-17 01:54:25,215 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-17 01:54:25,218 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-17 01:54:25,219 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-17 01:54:25,219 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 01:54:25" (1/1) ... [2024-10-17 01:54:25,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 01:54:25,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 01:54:25,252 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) [2024-10-17 01:54:25,256 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 [2024-10-17 01:54:25,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-17 01:54:25,304 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-17 01:54:25,304 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-17 01:54:25,305 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-17 01:54:25,305 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-17 01:54:25,305 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-17 01:54:25,305 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-17 01:54:25,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-17 01:54:25,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-17 01:54:25,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-17 01:54:25,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-17 01:54:25,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-17 01:54:25,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-17 01:54:25,309 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-17 01:54:25,437 INFO L238 CfgBuilder]: Building ICFG [2024-10-17 01:54:25,439 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-17 01:54:25,897 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-17 01:54:25,898 INFO L287 CfgBuilder]: Performing block encoding [2024-10-17 01:54:26,261 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-17 01:54:26,261 INFO L314 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-17 01:54:26,261 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 01:54:26 BoogieIcfgContainer [2024-10-17 01:54:26,261 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-17 01:54:26,264 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-17 01:54:26,264 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-17 01:54:26,267 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-17 01:54:26,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 01:54:24" (1/3) ... [2024-10-17 01:54:26,269 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59096a2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 01:54:26, skipping insertion in model container [2024-10-17 01:54:26,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 01:54:25" (2/3) ... [2024-10-17 01:54:26,269 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59096a2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 01:54:26, skipping insertion in model container [2024-10-17 01:54:26,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 01:54:26" (3/3) ... [2024-10-17 01:54:26,270 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-three-array-sum-alt.wvr.c [2024-10-17 01:54:26,287 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-17 01:54:26,287 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-17 01:54:26,288 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-17 01:54:26,356 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-17 01:54:26,395 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-17 01:54:26,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-17 01:54:26,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 01:54:26,398 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) [2024-10-17 01:54:26,400 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 [2024-10-17 01:54:26,494 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-17 01:54:26,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 01:54:26,513 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-17 01:54:26,521 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=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;@71a8c69e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-17 01:54:26,521 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-17 01:54:27,895 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-17 01:54:27,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 01:54:27,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1270328504, now seen corresponding path program 1 times [2024-10-17 01:54:27,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 01:54:27,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235808069] [2024-10-17 01:54:27,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 01:54:27,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 01:54:28,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 01:54:28,389 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 01:54:28,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 01:54:28,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235808069] [2024-10-17 01:54:28,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235808069] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 01:54:28,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 01:54:28,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-17 01:54:28,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440104450] [2024-10-17 01:54:28,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 01:54:28,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-17 01:54:28,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 01:54:28,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-17 01:54:28,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-17 01:54:28,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 01:54:28,428 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 01:54:28,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 01:54:28,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 01:54:28,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 01:54:28,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-17 01:54:28,527 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-17 01:54:28,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 01:54:28,528 INFO L85 PathProgramCache]: Analyzing trace with hash -965479059, now seen corresponding path program 1 times [2024-10-17 01:54:28,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 01:54:28,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708033213] [2024-10-17 01:54:28,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 01:54:28,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 01:54:28,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 01:54:28,709 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-17 01:54:28,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 01:54:28,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708033213] [2024-10-17 01:54:28,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708033213] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 01:54:28,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050221209] [2024-10-17 01:54:28,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 01:54:28,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 01:54:28,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 01:54:28,714 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) [2024-10-17 01:54:28,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-17 01:54:28,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 01:54:28,860 INFO L255 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-17 01:54:28,867 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 01:54:28,948 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-17 01:54:28,948 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 01:54:29,000 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-17 01:54:29,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2050221209] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-17 01:54:29,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-17 01:54:29,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2024-10-17 01:54:29,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189403605] [2024-10-17 01:54:29,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 01:54:29,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-17 01:54:29,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 01:54:29,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-17 01:54:29,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-10-17 01:54:29,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 01:54:29,006 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 01:54:29,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 01:54:29,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 01:54:29,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 01:54:30,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 01:54:30,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 01:54:30,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-17 01:54:30,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-10-17 01:54:30,712 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-17 01:54:30,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 01:54:30,713 INFO L85 PathProgramCache]: Analyzing trace with hash 482793192, now seen corresponding path program 1 times [2024-10-17 01:54:30,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 01:54:30,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123615510] [2024-10-17 01:54:30,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 01:54:30,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 01:54:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 01:54:30,939 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 01:54:30,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 01:54:30,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123615510] [2024-10-17 01:54:30,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123615510] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 01:54:30,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520970501] [2024-10-17 01:54:30,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 01:54:30,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 01:54:30,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 01:54:30,943 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) [2024-10-17 01:54:30,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-17 01:54:31,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 01:54:31,052 INFO L255 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-17 01:54:31,053 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 01:54:31,141 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-17 01:54:31,141 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 01:54:31,204 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-17 01:54:31,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520970501] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 01:54:31,204 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 01:54:31,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2024-10-17 01:54:31,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553039164] [2024-10-17 01:54:31,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 01:54:31,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-17 01:54:31,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 01:54:31,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-17 01:54:31,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-10-17 01:54:31,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 01:54:31,207 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 01:54:31,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 14 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) [2024-10-17 01:54:31,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 01:54:31,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 01:54:31,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 01:54:31,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 01:54:31,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 01:54:31,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 01:54:31,392 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-17 01:54:31,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 01:54:31,576 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-17 01:54:31,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 01:54:31,577 INFO L85 PathProgramCache]: Analyzing trace with hash -853775331, now seen corresponding path program 2 times [2024-10-17 01:54:31,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 01:54:31,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974668672] [2024-10-17 01:54:31,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 01:54:31,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 01:54:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 01:54:31,759 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-17 01:54:31,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 01:54:31,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974668672] [2024-10-17 01:54:31,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974668672] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 01:54:31,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406973374] [2024-10-17 01:54:31,760 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-17 01:54:31,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 01:54:31,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 01:54:31,762 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) [2024-10-17 01:54:31,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-17 01:54:31,881 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-17 01:54:31,882 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 01:54:31,884 INFO L255 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-17 01:54:31,885 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 01:54:31,978 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-17 01:54:31,978 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 01:54:32,071 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-17 01:54:32,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406973374] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 01:54:32,074 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 01:54:32,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 17 [2024-10-17 01:54:32,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422372196] [2024-10-17 01:54:32,075 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 01:54:32,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-17 01:54:32,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 01:54:32,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-17 01:54:32,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2024-10-17 01:54:32,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 01:54:32,077 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 01:54:32,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.823529411764706) internal successors, (65), 17 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 01:54:32,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 01:54:32,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 01:54:32,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 01:54:32,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 01:54:35,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 01:54:35,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 01:54:35,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 01:54:35,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-17 01:54:35,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-17 01:54:35,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 01:54:35,923 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-17 01:54:35,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 01:54:35,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1502335780, now seen corresponding path program 3 times [2024-10-17 01:54:35,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 01:54:35,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917933079] [2024-10-17 01:54:35,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 01:54:35,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 01:54:35,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 01:54:36,683 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 16 proven. 28 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-17 01:54:36,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 01:54:36,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917933079] [2024-10-17 01:54:36,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917933079] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 01:54:36,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846039575] [2024-10-17 01:54:36,684 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-17 01:54:36,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 01:54:36,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 01:54:36,686 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) [2024-10-17 01:54:36,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-17 01:54:36,843 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-10-17 01:54:36,843 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 01:54:36,847 INFO L255 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-17 01:54:36,849 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 01:54:37,014 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 35 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-17 01:54:37,014 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 01:54:37,149 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 35 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-17 01:54:37,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846039575] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 01:54:37,150 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 01:54:37,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 8, 8] total 33 [2024-10-17 01:54:37,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759554186] [2024-10-17 01:54:37,150 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 01:54:37,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-17 01:54:37,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 01:54:37,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-17 01:54:37,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=963, Unknown=0, NotChecked=0, Total=1122 [2024-10-17 01:54:37,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 01:54:37,153 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 01:54:37,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.323529411764706) internal successors, (79), 33 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 01:54:37,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 01:54:37,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 01:54:37,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 01:54:37,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-10-17 01:54:37,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 01:54:37,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 01:54:37,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 01:54:37,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 01:54:37,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-17 01:54:37,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-17 01:54:37,399 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-17 01:54:37,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 01:54:37,587 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-17 01:54:37,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 01:54:37,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1247545415, now seen corresponding path program 4 times [2024-10-17 01:54:37,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 01:54:37,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204626138] [2024-10-17 01:54:37,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 01:54:37,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 01:54:37,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 01:54:37,916 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 27 proven. 17 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-17 01:54:37,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 01:54:37,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204626138] [2024-10-17 01:54:37,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204626138] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 01:54:37,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077141983] [2024-10-17 01:54:37,917 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-17 01:54:37,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 01:54:37,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 01:54:37,919 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) [2024-10-17 01:54:37,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-17 01:54:38,070 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-17 01:54:38,070 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 01:54:38,073 INFO L255 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-17 01:54:38,075 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 01:54:38,216 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 32 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-17 01:54:38,216 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 01:54:38,350 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 32 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-17 01:54:38,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077141983] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 01:54:38,351 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 01:54:38,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2024-10-17 01:54:38,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996324101] [2024-10-17 01:54:38,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 01:54:38,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-10-17 01:54:38,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 01:54:38,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-10-17 01:54:38,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=546, Unknown=0, NotChecked=0, Total=702 [2024-10-17 01:54:38,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 01:54:38,353 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 01:54:38,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 26 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 01:54:38,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 01:54:38,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 01:54:38,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 01:54:38,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-10-17 01:54:38,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-17 01:54:38,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 01:54:38,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 01:54:38,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 01:54:38,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 01:54:38,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-17 01:54:38,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-17 01:54:38,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-17 01:54:38,545 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-17 01:54:38,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 01:54:38,733 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-17 01:54:38,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 01:54:38,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1499892028, now seen corresponding path program 5 times [2024-10-17 01:54:38,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 01:54:38,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309581173] [2024-10-17 01:54:38,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 01:54:38,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 01:54:38,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 01:54:39,194 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 32 proven. 19 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-10-17 01:54:39,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 01:54:39,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309581173] [2024-10-17 01:54:39,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309581173] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 01:54:39,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293254943] [2024-10-17 01:54:39,195 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-17 01:54:39,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 01:54:39,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 01:54:39,198 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) [2024-10-17 01:54:39,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-17 01:54:39,841 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-10-17 01:54:39,841 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 01:54:39,843 INFO L255 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-17 01:54:39,845 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 01:54:40,016 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 8 proven. 33 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-17 01:54:40,016 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 01:54:40,099 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 25 proven. 4 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-10-17 01:54:40,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293254943] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 01:54:40,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 01:54:40,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14, 7] total 31 [2024-10-17 01:54:40,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870148037] [2024-10-17 01:54:40,100 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 01:54:40,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-17 01:54:40,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 01:54:40,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-17 01:54:40,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=786, Unknown=0, NotChecked=0, Total=930 [2024-10-17 01:54:40,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 01:54:40,103 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 01:54:40,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.870967741935484) internal successors, (89), 31 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) [2024-10-17 01:54:40,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 01:54:40,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 01:54:40,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 01:54:40,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-10-17 01:54:40,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-17 01:54:40,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-17 01:54:40,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 01:54:43,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 01:54:43,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 01:54:43,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 01:54:43,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-17 01:54:43,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-17 01:54:43,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-17 01:54:43,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-17 01:54:43,168 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-17 01:54:43,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-10-17 01:54:43,355 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-17 01:54:43,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 01:54:43,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1594340026, now seen corresponding path program 6 times [2024-10-17 01:54:43,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 01:54:43,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822161211] [2024-10-17 01:54:43,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 01:54:43,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 01:54:43,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 01:54:43,859 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 40 proven. 25 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-10-17 01:54:43,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 01:54:43,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822161211] [2024-10-17 01:54:43,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822161211] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 01:54:43,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942653023] [2024-10-17 01:54:43,860 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-17 01:54:43,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 01:54:43,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 01:54:43,862 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) [2024-10-17 01:54:43,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-17 01:54:44,162 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2024-10-17 01:54:44,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 01:54:44,164 INFO L255 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-17 01:54:44,166 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 01:54:44,388 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 50 proven. 15 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-10-17 01:54:44,388 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 01:54:44,578 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 50 proven. 15 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-10-17 01:54:44,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942653023] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 01:54:44,578 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 01:54:44,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 33 [2024-10-17 01:54:44,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147320465] [2024-10-17 01:54:44,579 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 01:54:44,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-17 01:54:44,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 01:54:44,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-17 01:54:44,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=286, Invalid=836, Unknown=0, NotChecked=0, Total=1122 [2024-10-17 01:54:44,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 01:54:44,581 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 01:54:44,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.5588235294117645) internal successors, (87), 33 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 01:54:44,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 01:54:44,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 01:54:44,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 01:54:44,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-10-17 01:54:44,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-17 01:54:44,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-17 01:54:44,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-10-17 01:54:44,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 01:54:44,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 01:54:44,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 01:54:44,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 01:54:44,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-17 01:54:44,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-17 01:54:44,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-17 01:54:44,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-17 01:54:44,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-17 01:54:44,794 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-17 01:54:44,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 01:54:44,976 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-17 01:54:44,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 01:54:44,977 INFO L85 PathProgramCache]: Analyzing trace with hash 944167727, now seen corresponding path program 7 times [2024-10-17 01:54:44,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 01:54:44,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247987621] [2024-10-17 01:54:44,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 01:54:44,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 01:54:45,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 01:54:45,419 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 28 proven. 42 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-10-17 01:54:45,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 01:54:45,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247987621] [2024-10-17 01:54:45,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247987621] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 01:54:45,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79906854] [2024-10-17 01:54:45,420 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-17 01:54:45,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 01:54:45,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 01:54:45,422 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) [2024-10-17 01:54:45,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-17 01:54:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 01:54:45,582 INFO L255 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-17 01:54:45,584 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 01:54:45,788 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 33 proven. 37 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-10-17 01:54:45,788 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 01:54:45,952 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 39 proven. 31 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-10-17 01:54:45,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79906854] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 01:54:45,952 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 01:54:45,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 33 [2024-10-17 01:54:45,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071240017] [2024-10-17 01:54:45,953 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 01:54:45,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-17 01:54:45,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 01:54:45,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-17 01:54:45,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=841, Unknown=0, NotChecked=0, Total=1122 [2024-10-17 01:54:45,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 01:54:45,955 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 01:54:45,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.676470588235294) internal successors, (91), 33 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 01:54:45,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 01:54:45,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 01:54:45,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 01:54:45,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-10-17 01:54:45,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-17 01:54:45,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-17 01:54:45,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-10-17 01:54:45,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-10-17 01:54:45,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 01:54:49,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 01:54:49,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 01:54:49,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 01:54:49,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-17 01:54:49,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-17 01:54:49,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-17 01:54:49,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-17 01:54:49,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-17 01:54:49,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-17 01:54:49,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-17 01:54:49,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 01:54:49,510 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-17 01:54:49,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 01:54:49,510 INFO L85 PathProgramCache]: Analyzing trace with hash -251177074, now seen corresponding path program 8 times [2024-10-17 01:54:49,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 01:54:49,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787038093] [2024-10-17 01:54:49,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 01:54:49,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 01:54:49,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 01:55:00,631 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 3 proven. 102 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-17 01:55:00,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 01:55:00,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787038093] [2024-10-17 01:55:00,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787038093] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 01:55:00,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582047892] [2024-10-17 01:55:00,632 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-17 01:55:00,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 01:55:00,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 01:55:00,634 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) [2024-10-17 01:55:00,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-17 01:55:00,822 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-17 01:55:00,822 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 01:55:00,826 INFO L255 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 149 conjuncts are in the unsatisfiable core [2024-10-17 01:55:00,830 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 01:55:01,811 INFO L349 Elim1Store]: treesize reduction 36, result has 52.0 percent of original size [2024-10-17 01:55:01,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 54 [2024-10-17 01:55:02,433 INFO L349 Elim1Store]: treesize reduction 132, result has 35.6 percent of original size [2024-10-17 01:55:02,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 129 treesize of output 152 [2024-10-17 01:55:04,012 INFO L349 Elim1Store]: treesize reduction 370, result has 27.6 percent of original size [2024-10-17 01:55:04,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 3 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 53 case distinctions, treesize of input 318 treesize of output 324 [2024-10-17 01:55:08,688 INFO L349 Elim1Store]: treesize reduction 734, result has 22.9 percent of original size [2024-10-17 01:55:08,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 15 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 133 case distinctions, treesize of input 923 treesize of output 653 [2024-10-17 01:55:18,321 INFO L349 Elim1Store]: treesize reduction 1152, result has 19.7 percent of original size [2024-10-17 01:55:18,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 21 select indices, 21 select index equivalence classes, 28 disjoint index pairs (out of 210 index pairs), introduced 21 new quantified variables, introduced 227 case distinctions, treesize of input 1130 treesize of output 809 [2024-10-17 01:55:36,700 INFO L349 Elim1Store]: treesize reduction 640, result has 51.1 percent of original size [2024-10-17 01:55:36,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 26 select indices, 26 select index equivalence classes, 45 disjoint index pairs (out of 325 index pairs), introduced 26 new quantified variables, introduced 325 case distinctions, treesize of input 1917 treesize of output 1425 [2024-10-17 01:58:31,183 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-10-17 01:58:31,183 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 01:58:38,315 WARN L851 $PredicateComparison]: unable to prove that (forall ((~C~0.offset Int) (~C~0.base Int)) (let ((.cse12 (* 4 |c_thread3Thread1of1ForFork0_~i~2#1|))) (let ((.cse17 (select (select |c_#memory_int| c_~A~0.base) (+ .cse12 c_~A~0.offset))) (.cse18 (select (select |c_#memory_int| c_~B~0.base) (+ .cse12 c_~B~0.offset)))) (let ((.cse30 (store (select |c_#memory_int| ~C~0.base) (+ .cse12 ~C~0.offset) (+ .cse17 .cse18)))) (let ((.cse31 (store |c_#memory_int| ~C~0.base .cse30))) (let ((.cse11 (select .cse31 c_~B~0.base)) (.cse0 (select .cse31 c_~A~0.base))) (let ((.cse20 (select .cse0 (+ .cse12 c_~A~0.offset 4))) (.cse22 (select .cse11 (+ .cse12 4 c_~B~0.offset)))) (let ((.cse28 (store .cse30 (+ .cse12 ~C~0.offset 4) (+ .cse20 .cse22)))) (let ((.cse29 (store |c_#memory_int| ~C~0.base .cse28))) (let ((.cse8 (select .cse29 c_~B~0.base)) (.cse5 (select .cse29 c_~A~0.base))) (let ((.cse13 (select .cse5 (+ .cse12 c_~A~0.offset 8))) (.cse21 (select .cse8 (+ .cse12 8 c_~B~0.offset)))) (let ((.cse26 (store .cse28 (+ .cse12 ~C~0.offset 8) (+ .cse13 .cse21)))) (let ((.cse27 (store |c_#memory_int| ~C~0.base .cse26))) (let ((.cse2 (select .cse27 c_~B~0.base)) (.cse6 (select .cse27 c_~A~0.base))) (let ((.cse14 (select .cse6 (+ .cse12 c_~A~0.offset 12))) (.cse15 (select .cse2 (+ .cse12 12 c_~B~0.offset)))) (let ((.cse24 (store .cse26 (+ .cse12 ~C~0.offset 12) (+ .cse14 .cse15)))) (let ((.cse25 (store |c_#memory_int| ~C~0.base .cse24))) (let ((.cse4 (select .cse25 c_~A~0.base)) (.cse7 (select .cse25 c_~B~0.base))) (let ((.cse16 (select .cse7 (+ .cse12 16 c_~B~0.offset))) (.cse19 (select .cse4 (+ .cse12 c_~A~0.offset 16)))) (let ((.cse23 (store |c_#memory_int| ~C~0.base (store .cse24 (+ .cse12 ~C~0.offset 16) (+ .cse16 .cse19))))) (let ((.cse9 (select .cse23 c_~A~0.base)) (.cse10 (select .cse23 c_~B~0.base))) (= (let ((.cse1 (* |c_thread1Thread1of1ForFork1_~i~0#1| 4)) (.cse3 (* |c_thread2Thread1of1ForFork2_~i~1#1| 4))) (+ (select .cse0 (+ .cse1 c_~A~0.offset)) (select .cse2 (+ .cse3 8 c_~B~0.offset)) (select .cse4 (+ .cse1 c_~A~0.offset 12)) (select .cse5 (+ .cse1 c_~A~0.offset 4)) (select .cse6 (+ .cse1 c_~A~0.offset 8)) (select .cse7 (+ .cse3 12 c_~B~0.offset)) c_~asum~0 (select .cse8 (+ .cse3 4 c_~B~0.offset)) c_~bsum~0 (select .cse9 (+ .cse1 c_~A~0.offset 16)) (select .cse10 (+ .cse3 16 c_~B~0.offset)) (select .cse11 (+ .cse3 c_~B~0.offset)))) (+ (select .cse9 (+ .cse12 c_~A~0.offset 20)) .cse13 .cse14 .cse15 (select .cse10 (+ .cse12 20 c_~B~0.offset)) .cse16 .cse17 .cse18 .cse19 c_~csum~0 .cse20 .cse21 .cse22))))))))))))))))))))))) is different from false [2024-10-17 01:58:40,549 WARN L851 $PredicateComparison]: unable to prove that (forall ((~C~0.offset Int) (~B~0.base Int) (~C~0.base Int)) (let ((.cse5 (select |c_#memory_int| ~B~0.base)) (.cse13 (* 4 |c_thread3Thread1of1ForFork0_~i~2#1|))) (let ((.cse16 (select (select |c_#memory_int| c_~A~0.base) (+ .cse13 c_~A~0.offset))) (.cse17 (select .cse5 (+ .cse13 c_~B~0.offset)))) (let ((.cse31 (store (select |c_#memory_int| ~C~0.base) (+ .cse13 ~C~0.offset) (+ .cse16 .cse17)))) (let ((.cse32 (store |c_#memory_int| ~C~0.base .cse31))) (let ((.cse9 (select .cse32 c_~A~0.base)) (.cse8 (select .cse32 ~B~0.base))) (let ((.cse18 (select .cse8 (+ .cse13 4 c_~B~0.offset))) (.cse19 (select .cse9 (+ .cse13 c_~A~0.offset 4)))) (let ((.cse29 (store .cse31 (+ .cse13 ~C~0.offset 4) (+ .cse18 .cse19)))) (let ((.cse30 (store |c_#memory_int| ~C~0.base .cse29))) (let ((.cse0 (select .cse30 c_~A~0.base)) (.cse10 (select .cse30 ~B~0.base))) (let ((.cse22 (select .cse10 (+ .cse13 8 c_~B~0.offset))) (.cse23 (select .cse0 (+ .cse13 c_~A~0.offset 8)))) (let ((.cse27 (store .cse29 (+ .cse13 ~C~0.offset 8) (+ .cse22 .cse23)))) (let ((.cse28 (store |c_#memory_int| ~C~0.base .cse27))) (let ((.cse3 (select .cse28 c_~A~0.base)) (.cse11 (select .cse28 ~B~0.base))) (let ((.cse15 (select .cse11 (+ .cse13 12 c_~B~0.offset))) (.cse21 (select .cse3 (+ .cse13 c_~A~0.offset 12)))) (let ((.cse25 (store .cse27 (+ .cse13 ~C~0.offset 12) (+ .cse15 .cse21)))) (let ((.cse26 (store |c_#memory_int| ~C~0.base .cse25))) (let ((.cse12 (select .cse26 ~B~0.base)) (.cse2 (select .cse26 c_~A~0.base))) (let ((.cse14 (select .cse2 (+ .cse13 c_~A~0.offset 16))) (.cse20 (select .cse12 (+ .cse13 16 c_~B~0.offset)))) (let ((.cse24 (store |c_#memory_int| ~C~0.base (store .cse25 (+ .cse13 ~C~0.offset 16) (+ .cse14 .cse20))))) (let ((.cse4 (select .cse24 c_~A~0.base)) (.cse7 (select .cse24 ~B~0.base))) (= (let ((.cse1 (* |c_thread1Thread1of1ForFork1_~i~0#1| 4)) (.cse6 (* |c_thread2Thread1of1ForFork2_~i~1#1| 4))) (+ (select .cse0 (+ .cse1 c_~A~0.offset 4)) (select .cse2 (+ .cse1 c_~A~0.offset 12)) c_~asum~0 (select .cse3 (+ .cse1 c_~A~0.offset 8)) c_~bsum~0 (select .cse4 (+ .cse1 c_~A~0.offset 16)) (select .cse5 (+ .cse6 c_~B~0.offset)) (select .cse7 (+ .cse6 20 c_~B~0.offset)) (select .cse8 (+ .cse6 4 c_~B~0.offset)) (select .cse9 (+ .cse1 c_~A~0.offset)) (select .cse10 (+ .cse6 8 c_~B~0.offset)) (select .cse11 (+ .cse6 12 c_~B~0.offset)) (select .cse12 (+ .cse6 16 c_~B~0.offset)))) (+ (select .cse4 (+ .cse13 c_~A~0.offset 20)) (select .cse7 (+ .cse13 20 c_~B~0.offset)) .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 c_~csum~0 .cse22 .cse23))))))))))))))))))))))) is different from false