./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-figure3.wvr.c --full-output --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5dad65ad 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-figure3.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 a479da07a0fc6d1ad250c3f67241d6294523a3c8fee4f6d465a7a5bdc9204f86 --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.2.5-dev-5dad65a-m [2024-10-22 12:15:25,504 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-22 12:15:25,592 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-22 12:15:25,607 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-22 12:15:25,609 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-22 12:15:25,640 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-22 12:15:25,641 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-22 12:15:25,642 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-22 12:15:25,643 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-22 12:15:25,644 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-22 12:15:25,644 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-22 12:15:25,645 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-22 12:15:25,645 INFO L153 SettingsManager]: * Use SBE=true [2024-10-22 12:15:25,645 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-22 12:15:25,647 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-22 12:15:25,648 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-22 12:15:25,648 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-22 12:15:25,648 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-22 12:15:25,648 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-22 12:15:25,649 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-22 12:15:25,649 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-22 12:15:25,654 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-22 12:15:25,654 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-22 12:15:25,654 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-22 12:15:25,654 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-22 12:15:25,654 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-22 12:15:25,655 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-22 12:15:25,655 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-22 12:15:25,655 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-22 12:15:25,655 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-22 12:15:25,655 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-22 12:15:25,656 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-22 12:15:25,656 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-22 12:15:25,656 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-22 12:15:25,656 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-22 12:15:25,656 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-22 12:15:25,657 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-22 12:15:25,657 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-22 12:15:25,657 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-22 12:15:25,660 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-22 12:15:25,660 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-22 12:15:25,660 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a479da07a0fc6d1ad250c3f67241d6294523a3c8fee4f6d465a7a5bdc9204f86 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP [2024-10-22 12:15:25,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-22 12:15:25,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-22 12:15:26,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-22 12:15:26,003 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-22 12:15:26,004 INFO L274 PluginConnector]: CDTParser initialized [2024-10-22 12:15:26,005 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-figure3.wvr.c [2024-10-22 12:15:27,607 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-22 12:15:27,796 INFO L384 CDTParser]: Found 1 translation units. [2024-10-22 12:15:27,797 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-figure3.wvr.c [2024-10-22 12:15:27,805 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/2a87697ec/429c8c87a9664303ad8f7f0c2a1f6bb5/FLAG67a187484 [2024-10-22 12:15:27,820 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/2a87697ec/429c8c87a9664303ad8f7f0c2a1f6bb5 [2024-10-22 12:15:27,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-22 12:15:27,830 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-22 12:15:27,832 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-22 12:15:27,834 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-22 12:15:27,842 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-22 12:15:27,842 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:15:27" (1/1) ... [2024-10-22 12:15:27,843 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c302a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:15:27, skipping insertion in model container [2024-10-22 12:15:27,843 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:15:27" (1/1) ... [2024-10-22 12:15:27,865 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-22 12:15:28,089 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-figure3.wvr.c[2147,2160] [2024-10-22 12:15:28,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-22 12:15:28,105 INFO L200 MainTranslator]: Completed pre-run [2024-10-22 12:15:28,131 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-figure3.wvr.c[2147,2160] [2024-10-22 12:15:28,133 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-22 12:15:28,164 INFO L204 MainTranslator]: Completed translation [2024-10-22 12:15:28,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:15:28 WrapperNode [2024-10-22 12:15:28,165 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-22 12:15:28,170 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-22 12:15:28,170 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-22 12:15:28,170 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-22 12:15:28,180 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:15:28" (1/1) ... [2024-10-22 12:15:28,189 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:15:28" (1/1) ... [2024-10-22 12:15:28,209 INFO L138 Inliner]: procedures = 20, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 63 [2024-10-22 12:15:28,209 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-22 12:15:28,210 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-22 12:15:28,210 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-22 12:15:28,211 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-22 12:15:28,219 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:15:28" (1/1) ... [2024-10-22 12:15:28,220 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:15:28" (1/1) ... [2024-10-22 12:15:28,221 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:15:28" (1/1) ... [2024-10-22 12:15:28,222 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:15:28" (1/1) ... [2024-10-22 12:15:28,228 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:15:28" (1/1) ... [2024-10-22 12:15:28,232 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:15:28" (1/1) ... [2024-10-22 12:15:28,233 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:15:28" (1/1) ... [2024-10-22 12:15:28,234 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:15:28" (1/1) ... [2024-10-22 12:15:28,236 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-22 12:15:28,237 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-22 12:15:28,237 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-22 12:15:28,237 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-22 12:15:28,238 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:15:28" (1/1) ... [2024-10-22 12:15:28,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-22 12:15:28,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 12:15:28,272 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) [2024-10-22 12:15:28,282 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 [2024-10-22 12:15:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-22 12:15:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-22 12:15:28,325 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-22 12:15:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-22 12:15:28,325 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-22 12:15:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-22 12:15:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-22 12:15:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-22 12:15:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-22 12:15:28,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-22 12:15:28,328 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-22 12:15:28,445 INFO L238 CfgBuilder]: Building ICFG [2024-10-22 12:15:28,449 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-22 12:15:28,680 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-22 12:15:28,680 INFO L287 CfgBuilder]: Performing block encoding [2024-10-22 12:15:28,800 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-22 12:15:28,801 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-22 12:15:28,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:15:28 BoogieIcfgContainer [2024-10-22 12:15:28,802 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-22 12:15:28,804 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-22 12:15:28,805 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-22 12:15:28,809 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-22 12:15:28,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 12:15:27" (1/3) ... [2024-10-22 12:15:28,810 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@756b4d97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:15:28, skipping insertion in model container [2024-10-22 12:15:28,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:15:28" (2/3) ... [2024-10-22 12:15:28,811 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@756b4d97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:15:28, skipping insertion in model container [2024-10-22 12:15:28,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:15:28" (3/3) ... [2024-10-22 12:15:28,817 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-figure3.wvr.c [2024-10-22 12:15:28,839 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-22 12:15:28,840 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-22 12:15:28,840 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-22 12:15:28,894 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-22 12:15:28,939 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-22 12:15:28,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-22 12:15:28,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 12:15:28,943 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) [2024-10-22 12:15:28,971 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 [2024-10-22 12:15:29,057 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-22 12:15:29,069 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-22 12:15:29,075 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;@70643097, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-22 12:15:29,075 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-10-22 12:15:29,430 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-22 12:15:29,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 12:15:29,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1468535759, now seen corresponding path program 1 times [2024-10-22 12:15:29,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 12:15:29,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633755912] [2024-10-22 12:15:29,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 12:15:29,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 12:15:29,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 12:15:29,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-22 12:15:29,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 12:15:29,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633755912] [2024-10-22 12:15:29,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633755912] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-22 12:15:29,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-22 12:15:29,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-22 12:15:29,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086080178] [2024-10-22 12:15:30,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 12:15:30,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-22 12:15:30,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 12:15:30,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-22 12:15:30,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-22 12:15:30,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 12:15:30,041 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 12:15:30,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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) [2024-10-22 12:15:30,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 12:15:30,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-22 12:15:30,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-22 12:15:30,159 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-22 12:15:30,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 12:15:30,159 INFO L85 PathProgramCache]: Analyzing trace with hash 438763244, now seen corresponding path program 1 times [2024-10-22 12:15:30,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 12:15:30,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383455155] [2024-10-22 12:15:30,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 12:15:30,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 12:15:30,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 12:15:30,488 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-22 12:15:30,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 12:15:30,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383455155] [2024-10-22 12:15:30,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383455155] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-22 12:15:30,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183123211] [2024-10-22 12:15:30,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 12:15:30,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-22 12:15:30,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 12:15:30,535 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) [2024-10-22 12:15:30,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-22 12:15:30,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 12:15:30,620 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-22 12:15:30,629 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 12:15:30,813 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-22 12:15:30,817 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-22 12:15:31,029 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-22 12:15:31,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183123211] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-22 12:15:31,031 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-22 12:15:31,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2024-10-22 12:15:31,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441257039] [2024-10-22 12:15:31,033 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-22 12:15:31,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-22 12:15:31,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 12:15:31,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-22 12:15:31,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-10-22 12:15:31,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 12:15:31,039 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 12:15:31,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 17 states have internal predecessors, (52), 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) [2024-10-22 12:15:31,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-22 12:15:31,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 12:15:31,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-22 12:15:31,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-22 12:15:31,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-22 12:15:31,780 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 [2024-10-22 12:15:31,781 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-22 12:15:31,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 12:15:31,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1137837116, now seen corresponding path program 2 times [2024-10-22 12:15:31,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 12:15:31,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936298805] [2024-10-22 12:15:31,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 12:15:31,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 12:15:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 12:15:31,957 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-22 12:15:31,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 12:15:31,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936298805] [2024-10-22 12:15:31,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936298805] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-22 12:15:31,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711173576] [2024-10-22 12:15:31,959 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-22 12:15:31,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-22 12:15:31,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 12:15:31,961 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) [2024-10-22 12:15:31,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-22 12:15:32,022 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-22 12:15:32,023 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-22 12:15:32,025 INFO L255 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-22 12:15:32,026 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 12:15:32,072 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-22 12:15:32,072 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-22 12:15:32,176 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-22 12:15:32,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1711173576] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-22 12:15:32,177 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-22 12:15:32,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 5 [2024-10-22 12:15:32,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659320192] [2024-10-22 12:15:32,179 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-22 12:15:32,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-22 12:15:32,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 12:15:32,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-22 12:15:32,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-22 12:15:32,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 12:15:32,181 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 12:15:32,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 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) [2024-10-22 12:15:32,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-22 12:15:32,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-10-22 12:15:32,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 12:15:32,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-22 12:15:32,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-22 12:15:32,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-22 12:15:32,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-22 12:15:32,565 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 [2024-10-22 12:15:32,566 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-22 12:15:32,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 12:15:32,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1532910741, now seen corresponding path program 3 times [2024-10-22 12:15:32,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 12:15:32,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633035833] [2024-10-22 12:15:32,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 12:15:32,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 12:15:32,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 12:15:32,957 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 43 proven. 52 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-22 12:15:32,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 12:15:32,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633035833] [2024-10-22 12:15:32,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633035833] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-22 12:15:32,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115476619] [2024-10-22 12:15:32,958 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-22 12:15:32,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-22 12:15:32,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 12:15:32,961 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) [2024-10-22 12:15:32,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-22 12:15:33,086 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-10-22 12:15:33,086 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-22 12:15:33,088 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-10-22 12:15:33,091 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 12:15:33,479 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 7 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-22 12:15:33,479 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-22 12:15:34,261 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 7 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-22 12:15:34,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115476619] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-22 12:15:34,263 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-22 12:15:34,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 17, 17] total 36 [2024-10-22 12:15:34,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367493013] [2024-10-22 12:15:34,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-22 12:15:34,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-10-22 12:15:34,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 12:15:34,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-10-22 12:15:34,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=1058, Unknown=0, NotChecked=0, Total=1260 [2024-10-22 12:15:34,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 12:15:34,270 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 12:15:34,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 3.5277777777777777) internal successors, (127), 36 states have internal predecessors, (127), 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) [2024-10-22 12:15:34,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-22 12:15:34,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-10-22 12:15:34,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-22 12:15:34,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 12:15:41,673 WARN L286 SmtUtils]: Spent 6.11s on a formula simplification. DAG size of input: 40 DAG size of output: 32 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-22 12:15:51,951 WARN L286 SmtUtils]: Spent 10.10s on a formula simplification. DAG size of input: 43 DAG size of output: 39 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-22 12:15:59,325 WARN L286 SmtUtils]: Spent 7.22s on a formula simplification. DAG size of input: 43 DAG size of output: 34 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-22 12:16:01,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:16:03,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:16:12,366 WARN L286 SmtUtils]: Spent 6.78s on a formula simplification. DAG size of input: 46 DAG size of output: 37 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-22 12:16:14,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:16:27,108 WARN L286 SmtUtils]: Spent 10.20s on a formula simplification. DAG size of input: 50 DAG size of output: 45 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-22 12:16:29,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:16:39,512 WARN L286 SmtUtils]: Spent 8.19s on a formula simplification. DAG size of input: 46 DAG size of output: 41 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-22 12:16:41,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:16:43,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:17:48,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-22 12:17:48,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-22 12:17:48,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-22 12:17:48,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2024-10-22 12:17:48,392 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-22 12:17:48,580 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 [2024-10-22 12:17:48,581 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-22 12:17:48,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 12:17:48,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1055267155, now seen corresponding path program 4 times [2024-10-22 12:17:48,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 12:17:48,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229530884] [2024-10-22 12:17:48,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 12:17:48,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 12:17:48,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 12:17:49,118 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-10-22 12:17:49,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 12:17:49,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229530884] [2024-10-22 12:17:49,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229530884] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-22 12:17:49,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157298145] [2024-10-22 12:17:49,119 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-22 12:17:49,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-22 12:17:49,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 12:17:49,121 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) [2024-10-22 12:17:49,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-22 12:17:49,184 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-22 12:17:49,184 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-22 12:17:49,186 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-10-22 12:17:49,188 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 12:17:49,657 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 209 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-22 12:17:49,658 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-22 12:17:50,277 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 209 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-22 12:17:50,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157298145] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-22 12:17:50,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-22 12:17:50,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 21, 21] total 45 [2024-10-22 12:17:50,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596538260] [2024-10-22 12:17:50,278 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-22 12:17:50,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-10-22 12:17:50,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 12:17:50,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-10-22 12:17:50,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=1676, Unknown=0, NotChecked=0, Total=1980 [2024-10-22 12:17:50,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 12:17:50,281 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 12:17:50,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 3.066666666666667) internal successors, (138), 45 states have internal predecessors, (138), 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) [2024-10-22 12:17:50,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-22 12:17:50,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-10-22 12:17:50,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-22 12:17:50,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2024-10-22 12:17:50,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 12:18:07,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:18:21,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-22 12:18:21,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-22 12:18:21,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-22 12:18:21,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2024-10-22 12:18:21,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-10-22 12:18:21,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-22 12:18:22,060 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 [2024-10-22 12:18:22,061 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-22 12:18:22,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 12:18:22,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1823861206, now seen corresponding path program 5 times [2024-10-22 12:18:22,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 12:18:22,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181292510] [2024-10-22 12:18:22,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 12:18:22,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 12:18:22,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 12:18:22,928 INFO L134 CoverageAnalysis]: Checked inductivity of 577 backedges. 15 proven. 394 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-10-22 12:18:22,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 12:18:22,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181292510] [2024-10-22 12:18:22,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181292510] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-22 12:18:22,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [816437363] [2024-10-22 12:18:22,929 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-22 12:18:22,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-22 12:18:22,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 12:18:22,931 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) [2024-10-22 12:18:22,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-22 12:18:23,327 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 17 check-sat command(s) [2024-10-22 12:18:23,328 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-22 12:18:23,330 INFO L255 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-10-22 12:18:23,333 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 12:18:24,027 INFO L134 CoverageAnalysis]: Checked inductivity of 577 backedges. 15 proven. 562 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-22 12:18:24,028 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-22 12:18:25,316 INFO L134 CoverageAnalysis]: Checked inductivity of 577 backedges. 15 proven. 562 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-22 12:18:25,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [816437363] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-22 12:18:25,320 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-22 12:18:25,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 31, 31] total 66 [2024-10-22 12:18:25,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143984788] [2024-10-22 12:18:25,321 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-22 12:18:25,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2024-10-22 12:18:25,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 12:18:25,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2024-10-22 12:18:25,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=620, Invalid=3670, Unknown=0, NotChecked=0, Total=4290 [2024-10-22 12:18:25,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 12:18:25,329 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 12:18:25,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 3.227272727272727) internal successors, (213), 66 states have internal predecessors, (213), 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) [2024-10-22 12:18:25,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-22 12:18:25,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-10-22 12:18:25,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-22 12:18:25,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2024-10-22 12:18:25,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2024-10-22 12:18:25,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 12:18:31,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-22 12:18:31,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-22 12:18:31,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-22 12:18:31,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2024-10-22 12:18:31,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-10-22 12:18:31,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2024-10-22 12:18:31,113 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-22 12:18:31,294 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 [2024-10-22 12:18:31,295 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-22 12:18:31,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 12:18:31,295 INFO L85 PathProgramCache]: Analyzing trace with hash -856372727, now seen corresponding path program 6 times [2024-10-22 12:18:31,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 12:18:31,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826906956] [2024-10-22 12:18:31,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 12:18:31,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 12:18:31,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 12:18:32,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1430 backedges. 0 proven. 924 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2024-10-22 12:18:32,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 12:18:32,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826906956] [2024-10-22 12:18:32,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826906956] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-22 12:18:32,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192841382] [2024-10-22 12:18:32,574 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-22 12:18:32,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-22 12:18:32,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 12:18:32,576 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) [2024-10-22 12:18:32,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-22 12:18:33,389 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 20 check-sat command(s) [2024-10-22 12:18:33,390 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-22 12:18:33,392 INFO L255 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 93 conjuncts are in the unsatisfiable core [2024-10-22 12:18:33,400 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 12:18:33,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1430 backedges. 0 proven. 914 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2024-10-22 12:18:33,603 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-22 12:18:33,952 INFO L134 CoverageAnalysis]: Checked inductivity of 1430 backedges. 0 proven. 914 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2024-10-22 12:18:33,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192841382] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-22 12:18:33,953 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-22 12:18:33,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 12 [2024-10-22 12:18:33,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147842793] [2024-10-22 12:18:33,953 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-22 12:18:33,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-22 12:18:33,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 12:18:33,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-22 12:18:33,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-10-22 12:18:33,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 12:18:33,955 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 12:18:33,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 12 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-22 12:18:33,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-22 12:18:33,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-10-22 12:18:33,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-22 12:18:33,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2024-10-22 12:18:33,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2024-10-22 12:18:33,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2024-10-22 12:18:33,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 12:18:36,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-22 12:18:36,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-22 12:18:36,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-22 12:18:36,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2024-10-22 12:18:36,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-10-22 12:18:36,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2024-10-22 12:18:36,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-22 12:18:36,242 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-22 12:18:36,428 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 [2024-10-22 12:18:36,429 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-22 12:18:36,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 12:18:36,429 INFO L85 PathProgramCache]: Analyzing trace with hash -557568478, now seen corresponding path program 7 times [2024-10-22 12:18:36,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 12:18:36,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118810134] [2024-10-22 12:18:36,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 12:18:36,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 12:18:36,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 12:18:38,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 134 proven. 1247 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-22 12:18:38,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 12:18:38,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118810134] [2024-10-22 12:18:38,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118810134] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-22 12:18:38,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691002960] [2024-10-22 12:18:38,881 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-22 12:18:38,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-22 12:18:38,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 12:18:38,882 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) [2024-10-22 12:18:38,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-22 12:18:38,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 12:18:38,965 INFO L255 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 82 conjuncts are in the unsatisfiable core [2024-10-22 12:18:38,968 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 12:18:39,746 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 154 proven. 1225 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-22 12:18:39,746 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-22 12:18:43,674 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 154 proven. 1225 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-22 12:18:43,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691002960] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-22 12:18:43,674 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-22 12:18:43,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 43, 43] total 91 [2024-10-22 12:18:43,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99340941] [2024-10-22 12:18:43,675 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-22 12:18:43,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 91 states [2024-10-22 12:18:43,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 12:18:43,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2024-10-22 12:18:43,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1235, Invalid=6955, Unknown=0, NotChecked=0, Total=8190 [2024-10-22 12:18:43,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 12:18:43,679 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 12:18:43,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 91 states, 91 states have (on average 3.1538461538461537) internal successors, (287), 91 states have internal predecessors, (287), 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) [2024-10-22 12:18:43,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-22 12:18:43,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-10-22 12:18:43,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-22 12:18:43,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2024-10-22 12:18:43,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2024-10-22 12:18:43,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2024-10-22 12:18:43,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-22 12:18:43,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 12:19:13,533 WARN L286 SmtUtils]: Spent 19.53s on a formula simplification. DAG size of input: 83 DAG size of output: 68 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-22 12:19:37,068 WARN L286 SmtUtils]: Spent 19.74s on a formula simplification. DAG size of input: 87 DAG size of output: 74 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-22 12:19:38,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:19:40,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:19:42,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:19:44,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:19:46,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:19:48,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:19:50,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:19:52,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:20:11,484 WARN L286 SmtUtils]: Spent 13.68s on a formula simplification. DAG size of input: 87 DAG size of output: 75 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-22 12:20:30,938 WARN L286 SmtUtils]: Spent 14.51s on a formula simplification. DAG size of input: 91 DAG size of output: 81 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-22 12:21:21,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-22 12:21:21,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-22 12:21:21,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-22 12:21:21,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2024-10-22 12:21:21,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-10-22 12:21:21,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2024-10-22 12:21:21,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-22 12:21:21,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2024-10-22 12:21:21,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-22 12:21:22,159 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 [2024-10-22 12:21:22,160 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-22 12:21:22,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 12:21:22,160 INFO L85 PathProgramCache]: Analyzing trace with hash 926338918, now seen corresponding path program 8 times [2024-10-22 12:21:22,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 12:21:22,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361333866] [2024-10-22 12:21:22,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 12:21:22,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 12:21:22,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 12:21:26,682 INFO L134 CoverageAnalysis]: Checked inductivity of 3352 backedges. 206 proven. 3143 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-22 12:21:26,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 12:21:26,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361333866] [2024-10-22 12:21:26,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361333866] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-22 12:21:26,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925156707] [2024-10-22 12:21:26,683 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-22 12:21:26,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-22 12:21:26,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 12:21:26,684 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) [2024-10-22 12:21:26,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-22 12:21:26,801 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-22 12:21:26,802 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-22 12:21:26,807 INFO L255 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 130 conjuncts are in the unsatisfiable core [2024-10-22 12:21:26,811 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-22 12:21:27,789 INFO L134 CoverageAnalysis]: Checked inductivity of 3352 backedges. 238 proven. 3109 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-22 12:21:27,789 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-22 12:21:36,946 INFO L134 CoverageAnalysis]: Checked inductivity of 3352 backedges. 238 proven. 3109 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-22 12:21:36,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925156707] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-22 12:21:36,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-22 12:21:36,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 67, 67] total 139 [2024-10-22 12:21:36,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754115358] [2024-10-22 12:21:36,947 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-22 12:21:36,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 139 states [2024-10-22 12:21:36,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 12:21:36,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 139 interpolants. [2024-10-22 12:21:36,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3059, Invalid=16123, Unknown=0, NotChecked=0, Total=19182 [2024-10-22 12:21:36,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 12:21:36,954 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 12:21:36,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 139 states, 139 states have (on average 3.1007194244604315) internal successors, (431), 139 states have internal predecessors, (431), 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) [2024-10-22 12:21:36,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-22 12:21:36,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-10-22 12:21:36,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-22 12:21:36,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2024-10-22 12:21:36,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2024-10-22 12:21:36,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2024-10-22 12:21:36,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-22 12:21:36,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2024-10-22 12:21:36,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 12:24:08,060 WARN L286 SmtUtils]: Spent 1.24m on a formula simplification. DAG size of input: 167 DAG size of output: 143 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-22 12:26:16,828 WARN L286 SmtUtils]: Spent 1.18m on a formula simplification. DAG size of input: 171 DAG size of output: 149 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-22 12:26:19,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:26:21,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:26:23,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:26:25,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:26:27,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:26:29,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:26:31,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:26:33,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:26:35,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:26:37,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:26:39,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:26:41,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:26:43,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:26:46,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:26:48,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:26:50,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:26:52,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:26:55,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:26:57,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:26:59,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:27:01,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:28:46,087 WARN L286 SmtUtils]: Spent 49.21s on a formula simplification. DAG size of input: 169 DAG size of output: 145 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-22 12:28:48,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:28:51,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:28:54,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:28:58,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:28:59,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-22 12:29:01,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] Killed by 15