./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c --full-output --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking IA --traceabstraction.criterion.for.conditional.commutativity.checking DEFAULT -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b86fb0b7 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/weaver/popl20-three-array-sum.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 c1d27b7f98ac68d2da6120346c107c87df7f6f708200f0d5d2c806741122116e --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking IA --traceabstraction.criterion.for.conditional.commutativity.checking DEFAULT -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.conditional-comm-b86fb0b-m [2024-10-18 10:27:31,700 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-18 10:27:31,804 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-18 10:27:31,808 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-18 10:27:31,808 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-18 10:27:31,835 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-18 10:27:31,836 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-18 10:27:31,837 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-18 10:27:31,837 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-18 10:27:31,838 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-18 10:27:31,839 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-18 10:27:31,839 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-18 10:27:31,839 INFO L153 SettingsManager]: * Use SBE=true [2024-10-18 10:27:31,840 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-18 10:27:31,840 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-18 10:27:31,840 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-18 10:27:31,841 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-18 10:27:31,841 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-18 10:27:31,841 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-18 10:27:31,842 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-18 10:27:31,842 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-18 10:27:31,843 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-18 10:27:31,843 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-18 10:27:31,843 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-18 10:27:31,844 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-18 10:27:31,844 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-18 10:27:31,844 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-18 10:27:31,845 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-18 10:27:31,845 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-18 10:27:31,845 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-18 10:27:31,846 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-18 10:27:31,846 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-18 10:27:31,846 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-18 10:27:31,847 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-18 10:27:31,847 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-18 10:27:31,847 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-18 10:27:31,847 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-18 10:27:31,848 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-18 10:27:31,848 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-18 10:27:31,849 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-18 10:27:31,849 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-18 10:27:31,849 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1d27b7f98ac68d2da6120346c107c87df7f6f708200f0d5d2c806741122116e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> IA Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> DEFAULT [2024-10-18 10:27:32,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-18 10:27:32,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-18 10:27:32,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-18 10:27:32,142 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-18 10:27:32,142 INFO L274 PluginConnector]: CDTParser initialized [2024-10-18 10:27:32,144 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2024-10-18 10:27:33,664 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-18 10:27:33,866 INFO L384 CDTParser]: Found 1 translation units. [2024-10-18 10:27:33,867 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2024-10-18 10:27:33,880 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/55e93bd51/d423dd61d0ad4719a3a0b672ef697c33/FLAGf23611bb0 [2024-10-18 10:27:34,239 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/55e93bd51/d423dd61d0ad4719a3a0b672ef697c33 [2024-10-18 10:27:34,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-18 10:27:34,243 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-18 10:27:34,244 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-18 10:27:34,245 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-18 10:27:34,249 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-18 10:27:34,249 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.10 10:27:34" (1/1) ... [2024-10-18 10:27:34,250 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50065207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 10:27:34, skipping insertion in model container [2024-10-18 10:27:34,250 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.10 10:27:34" (1/1) ... [2024-10-18 10:27:34,273 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-18 10:27:34,501 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c[2730,2743] [2024-10-18 10:27:34,517 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-18 10:27:34,534 INFO L200 MainTranslator]: Completed pre-run [2024-10-18 10:27:34,562 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c[2730,2743] [2024-10-18 10:27:34,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-18 10:27:34,591 INFO L204 MainTranslator]: Completed translation [2024-10-18 10:27:34,591 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 10:27:34 WrapperNode [2024-10-18 10:27:34,591 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-18 10:27:34,593 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-18 10:27:34,593 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-18 10:27:34,593 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-18 10:27:34,601 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 10:27:34" (1/1) ... [2024-10-18 10:27:34,612 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 10:27:34" (1/1) ... [2024-10-18 10:27:34,636 INFO L138 Inliner]: procedures = 25, calls = 29, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 138 [2024-10-18 10:27:34,637 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-18 10:27:34,638 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-18 10:27:34,638 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-18 10:27:34,638 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-18 10:27:34,648 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 10:27:34" (1/1) ... [2024-10-18 10:27:34,648 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 10:27:34" (1/1) ... [2024-10-18 10:27:34,651 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 10:27:34" (1/1) ... [2024-10-18 10:27:34,652 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 10:27:34" (1/1) ... [2024-10-18 10:27:34,659 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 10:27:34" (1/1) ... [2024-10-18 10:27:34,667 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 10:27:34" (1/1) ... [2024-10-18 10:27:34,669 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 10:27:34" (1/1) ... [2024-10-18 10:27:34,674 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 10:27:34" (1/1) ... [2024-10-18 10:27:34,683 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-18 10:27:34,684 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-18 10:27:34,684 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-18 10:27:34,684 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-18 10:27:34,686 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 10:27:34" (1/1) ... [2024-10-18 10:27:34,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-18 10:27:34,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 10:27:34,722 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) [2024-10-18 10:27:34,725 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 [2024-10-18 10:27:34,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-18 10:27:34,767 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-18 10:27:34,767 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-18 10:27:34,767 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-18 10:27:34,767 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-18 10:27:34,767 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-18 10:27:34,767 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-18 10:27:34,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-18 10:27:34,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-18 10:27:34,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-18 10:27:34,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-18 10:27:34,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-18 10:27:34,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-18 10:27:34,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-18 10:27:34,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-18 10:27:34,771 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-18 10:27:34,870 INFO L238 CfgBuilder]: Building ICFG [2024-10-18 10:27:34,872 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-18 10:27:35,206 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-18 10:27:35,206 INFO L287 CfgBuilder]: Performing block encoding [2024-10-18 10:27:35,553 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-18 10:27:35,554 INFO L314 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-18 10:27:35,554 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.10 10:27:35 BoogieIcfgContainer [2024-10-18 10:27:35,554 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-18 10:27:35,558 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-18 10:27:35,558 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-18 10:27:35,564 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-18 10:27:35,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.10 10:27:34" (1/3) ... [2024-10-18 10:27:35,565 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dbe5f77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.10 10:27:35, skipping insertion in model container [2024-10-18 10:27:35,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 10:27:34" (2/3) ... [2024-10-18 10:27:35,567 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dbe5f77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.10 10:27:35, skipping insertion in model container [2024-10-18 10:27:35,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.10 10:27:35" (3/3) ... [2024-10-18 10:27:35,570 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-sum.wvr.c [2024-10-18 10:27:35,591 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-18 10:27:35,592 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-18 10:27:35,592 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-18 10:27:35,649 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-18 10:27:35,703 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 10:27:35,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 10:27:35,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 10:27:35,706 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) [2024-10-18 10:27:35,708 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 [2024-10-18 10:27:35,807 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 10:27:35,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 10:27:35,824 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 10:27:35,831 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;@17678d26, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 10:27:35,831 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-18 10:27:36,779 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-18 10:27:36,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 10:27:36,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1349771057, now seen corresponding path program 1 times [2024-10-18 10:27:36,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 10:27:36,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889693809] [2024-10-18 10:27:36,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 10:27:36,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 10:27:37,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 10:27:37,379 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-18 10:27:37,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 10:27:37,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889693809] [2024-10-18 10:27:37,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889693809] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 10:27:37,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 10:27:37,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-18 10:27:37,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785484392] [2024-10-18 10:27:37,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 10:27:37,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-18 10:27:37,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 10:27:37,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-18 10:27:37,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-18 10:27:37,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 10:27:37,577 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 10:27:37,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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) [2024-10-18 10:27:37,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 10:27:37,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 10:27:37,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-18 10:27:37,718 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-18 10:27:37,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 10:27:37,718 INFO L85 PathProgramCache]: Analyzing trace with hash 754232205, now seen corresponding path program 1 times [2024-10-18 10:27:37,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 10:27:37,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478461431] [2024-10-18 10:27:37,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 10:27:37,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 10:27:37,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 10:27:37,985 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-18 10:27:37,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 10:27:37,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478461431] [2024-10-18 10:27:37,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478461431] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 10:27:37,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066476487] [2024-10-18 10:27:37,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 10:27:37,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 10:27:37,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 10:27:38,014 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) [2024-10-18 10:27:38,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-18 10:27:38,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 10:27:38,138 INFO L255 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-18 10:27:38,146 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 10:27:38,331 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-18 10:27:38,332 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 10:27:38,424 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-18 10:27:38,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066476487] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 10:27:38,425 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 10:27:38,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-10-18 10:27:38,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116089855] [2024-10-18 10:27:38,427 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 10:27:38,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-18 10:27:38,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 10:27:38,674 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-18 10:27:38,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 75 [2024-10-18 10:27:38,803 INFO L349 Elim1Store]: treesize reduction 11, result has 71.8 percent of original size [2024-10-18 10:27:38,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 64 [2024-10-18 10:27:47,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1642057053, now seen corresponding path program 1 times [2024-10-18 10:27:47,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 10:27:47,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 10:27:47,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:27:47,668 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 10:27:47,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:27:47,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-18 10:27:47,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-10-18 10:27:47,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 10:27:47,743 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 10:27:47,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.0) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 10:27:47,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 10:27:47,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 10:27:48,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 10:27:48,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 10:27:48,096 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-18 10:27:48,279 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,SelfDestructingSolverStorable2,SelfDestructingSolverStorable1 [2024-10-18 10:27:48,280 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-18 10:27:48,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 10:27:48,280 INFO L85 PathProgramCache]: Analyzing trace with hash -165695537, now seen corresponding path program 2 times [2024-10-18 10:27:48,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 10:27:48,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865874261] [2024-10-18 10:27:48,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 10:27:48,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 10:27:48,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 10:27:48,552 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-18 10:27:48,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 10:27:48,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865874261] [2024-10-18 10:27:48,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865874261] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 10:27:48,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736167339] [2024-10-18 10:27:48,553 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-18 10:27:48,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 10:27:48,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 10:27:48,556 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) [2024-10-18 10:27:48,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-18 10:27:48,667 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-18 10:27:48,667 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 10:27:48,669 INFO L255 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-18 10:27:48,671 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 10:27:48,882 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-18 10:27:48,882 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 10:27:49,039 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-18 10:27:49,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736167339] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 10:27:49,040 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 10:27:49,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2024-10-18 10:27:49,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838412166] [2024-10-18 10:27:49,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 10:27:49,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-18 10:27:49,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 10:27:49,319 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-18 10:27:49,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 75 [2024-10-18 10:27:49,444 INFO L349 Elim1Store]: treesize reduction 11, result has 71.8 percent of original size [2024-10-18 10:27:49,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 64 [2024-10-18 10:27:59,691 INFO L85 PathProgramCache]: Analyzing trace with hash -655034460, now seen corresponding path program 1 times [2024-10-18 10:27:59,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 10:27:59,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 10:27:59,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:27:59,747 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 10:27:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:27:59,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-18 10:27:59,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2024-10-18 10:27:59,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 10:27:59,816 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 10:27:59,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.866666666666666) internal successors, (73), 14 states have internal predecessors, (73), 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) [2024-10-18 10:27:59,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 10:27:59,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 10:27:59,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 10:28:00,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 10:28:00,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 10:28:00,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-18 10:28:00,390 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-18 10:28:00,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 10:28:00,571 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-18 10:28:00,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 10:28:00,572 INFO L85 PathProgramCache]: Analyzing trace with hash -492364431, now seen corresponding path program 3 times [2024-10-18 10:28:00,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 10:28:00,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144199659] [2024-10-18 10:28:00,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 10:28:00,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 10:28:00,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 10:28:00,882 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 17 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-18 10:28:00,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 10:28:00,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144199659] [2024-10-18 10:28:00,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144199659] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 10:28:00,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520493144] [2024-10-18 10:28:00,884 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-18 10:28:00,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 10:28:00,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 10:28:00,886 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) [2024-10-18 10:28:00,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-18 10:28:01,002 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-18 10:28:01,002 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 10:28:01,006 INFO L255 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-18 10:28:01,009 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 10:28:01,221 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-18 10:28:01,222 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 10:28:01,420 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-18 10:28:01,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520493144] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 10:28:01,421 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 10:28:01,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2024-10-18 10:28:01,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845941832] [2024-10-18 10:28:01,421 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 10:28:01,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-18 10:28:01,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 10:28:01,688 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-18 10:28:01,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 75 [2024-10-18 10:28:01,869 INFO L349 Elim1Store]: treesize reduction 11, result has 71.8 percent of original size [2024-10-18 10:28:01,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 64 [2024-10-18 10:28:10,888 INFO L85 PathProgramCache]: Analyzing trace with hash -655034451, now seen corresponding path program 1 times [2024-10-18 10:28:10,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 10:28:10,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 10:28:10,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:28:10,910 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 10:28:10,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:28:11,438 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-18 10:28:11,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 75 [2024-10-18 10:28:11,847 INFO L349 Elim1Store]: treesize reduction 11, result has 71.8 percent of original size [2024-10-18 10:28:11,848 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 64 [2024-10-18 10:28:21,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1462782167, now seen corresponding path program 1 times [2024-10-18 10:28:21,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 10:28:21,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 10:28:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:28:21,573 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 10:28:21,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:28:21,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-18 10:28:21,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-10-18 10:28:21,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 10:28:21,619 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 10:28:21,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.625) internal successors, (90), 16 states have internal predecessors, (90), 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) [2024-10-18 10:28:21,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 10:28:21,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 10:28:21,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-10-18 10:28:21,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 10:28:25,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 10:28:25,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 10:28:25,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-18 10:28:25,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-18 10:28:25,645 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-18 10:28:25,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,SelfDestructingSolverStorable6,SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 10:28:25,832 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-18 10:28:25,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 10:28:25,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1439571268, now seen corresponding path program 1 times [2024-10-18 10:28:25,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 10:28:25,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386997233] [2024-10-18 10:28:25,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 10:28:25,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 10:28:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 10:28:26,735 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 31 proven. 17 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-18 10:28:26,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 10:28:26,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386997233] [2024-10-18 10:28:26,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386997233] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 10:28:26,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640360297] [2024-10-18 10:28:26,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 10:28:26,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 10:28:26,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 10:28:26,738 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) [2024-10-18 10:28:26,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-18 10:28:26,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 10:28:26,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-18 10:28:26,859 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 10:28:28,007 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 33 proven. 15 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-18 10:28:28,008 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 10:28:28,917 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-18 10:28:28,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640360297] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 10:28:28,918 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 10:28:28,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 19 [2024-10-18 10:28:28,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880811958] [2024-10-18 10:28:28,918 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 10:28:28,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-18 10:28:28,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 10:28:29,459 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-18 10:28:29,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 75 [2024-10-18 10:28:29,762 INFO L349 Elim1Store]: treesize reduction 11, result has 71.8 percent of original size [2024-10-18 10:28:29,762 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 64 [2024-10-18 10:28:40,219 INFO L85 PathProgramCache]: Analyzing trace with hash 439633659, now seen corresponding path program 1 times [2024-10-18 10:28:40,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 10:28:40,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 10:28:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:28:40,278 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 10:28:40,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:28:40,865 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-18 10:28:40,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 75 [2024-10-18 10:28:41,248 INFO L349 Elim1Store]: treesize reduction 11, result has 71.8 percent of original size [2024-10-18 10:28:41,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 64 [2024-10-18 10:28:51,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1239126263, now seen corresponding path program 1 times [2024-10-18 10:28:51,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 10:28:51,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 10:28:51,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:28:51,443 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 10:28:51,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:28:51,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-18 10:28:51,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2024-10-18 10:28:51,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 10:28:51,506 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 10:28:51,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.15) internal successors, (103), 19 states have internal predecessors, (103), 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) [2024-10-18 10:28:51,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 10:28:51,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 10:28:51,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-10-18 10:28:51,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-10-18 10:28:51,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 10:28:53,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 10:28:53,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 10:28:53,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-18 10:28:53,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-18 10:28:53,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-18 10:28:53,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-18 10:28:53,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8,SelfDestructingSolverStorable10,SelfDestructingSolverStorable9 [2024-10-18 10:28:53,346 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-18 10:28:53,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 10:28:53,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1391793675, now seen corresponding path program 2 times [2024-10-18 10:28:53,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 10:28:53,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137520436] [2024-10-18 10:28:53,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 10:28:53,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 10:28:53,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 10:28:54,209 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 69 proven. 16 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-18 10:28:54,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 10:28:54,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137520436] [2024-10-18 10:28:54,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137520436] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 10:28:54,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058308680] [2024-10-18 10:28:54,209 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-18 10:28:54,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 10:28:54,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 10:28:54,211 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) [2024-10-18 10:28:54,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-18 10:28:54,324 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-18 10:28:54,325 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 10:28:54,326 INFO L255 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-18 10:28:54,329 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 10:28:55,827 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 79 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-18 10:28:55,827 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 10:28:56,917 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 79 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-18 10:28:56,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1058308680] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 10:28:56,918 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 10:28:56,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 23 [2024-10-18 10:28:56,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324112795] [2024-10-18 10:28:56,918 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 10:28:56,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-18 10:28:56,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 10:28:57,385 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-18 10:28:57,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 75 [2024-10-18 10:28:57,690 INFO L349 Elim1Store]: treesize reduction 11, result has 71.8 percent of original size [2024-10-18 10:28:57,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 64 [2024-10-18 10:29:08,745 INFO L85 PathProgramCache]: Analyzing trace with hash 439633671, now seen corresponding path program 1 times [2024-10-18 10:29:08,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 10:29:08,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 10:29:08,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:29:08,769 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 10:29:08,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:29:09,451 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-18 10:29:09,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 75 [2024-10-18 10:29:09,796 INFO L349 Elim1Store]: treesize reduction 11, result has 71.8 percent of original size [2024-10-18 10:29:09,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 64 [2024-10-18 10:29:19,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1239126275, now seen corresponding path program 1 times [2024-10-18 10:29:19,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 10:29:19,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 10:29:19,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:29:19,703 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 10:29:19,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:29:20,291 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-18 10:29:20,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 75 [2024-10-18 10:29:20,578 INFO L349 Elim1Store]: treesize reduction 11, result has 71.8 percent of original size [2024-10-18 10:29:20,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 64 [2024-10-18 10:29:28,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1580038079, now seen corresponding path program 1 times [2024-10-18 10:29:28,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 10:29:28,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 10:29:28,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:29:28,538 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 10:29:28,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:29:28,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-18 10:29:28,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2024-10-18 10:29:28,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 10:29:28,594 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 10:29:28,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.125) internal successors, (123), 23 states have internal predecessors, (123), 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) [2024-10-18 10:29:28,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 10:29:28,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 10:29:28,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-10-18 10:29:28,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-10-18 10:29:28,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-10-18 10:29:28,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 10:29:30,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 10:29:30,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 10:29:30,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-18 10:29:30,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-18 10:29:30,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-18 10:29:30,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-18 10:29:30,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-18 10:29:30,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11,SelfDestructingSolverStorable12,SelfDestructingSolverStorable13,SelfDestructingSolverStorable14 [2024-10-18 10:29:30,305 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-18 10:29:30,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 10:29:30,305 INFO L85 PathProgramCache]: Analyzing trace with hash -901132873, now seen corresponding path program 3 times [2024-10-18 10:29:30,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 10:29:30,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893418212] [2024-10-18 10:29:30,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 10:29:30,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 10:29:30,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 10:29:31,072 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 48 proven. 40 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-10-18 10:29:31,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 10:29:31,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893418212] [2024-10-18 10:29:31,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893418212] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 10:29:31,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663767218] [2024-10-18 10:29:31,073 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-18 10:29:31,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 10:29:31,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 10:29:31,074 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) [2024-10-18 10:29:31,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-18 10:29:31,201 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-18 10:29:31,201 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 10:29:31,207 INFO L255 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-18 10:29:31,209 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 10:29:31,585 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 36 proven. 1 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-10-18 10:29:31,586 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 10:29:31,993 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 36 proven. 1 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-10-18 10:29:31,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663767218] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 10:29:31,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 10:29:31,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5, 5] total 16 [2024-10-18 10:29:31,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128263188] [2024-10-18 10:29:31,993 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 10:29:31,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-18 10:29:31,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 10:29:32,486 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-18 10:29:32,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 75 [2024-10-18 10:29:32,826 INFO L349 Elim1Store]: treesize reduction 11, result has 71.8 percent of original size [2024-10-18 10:29:32,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 64 [2024-10-18 10:29:43,387 INFO L85 PathProgramCache]: Analyzing trace with hash 971405010, now seen corresponding path program 1 times [2024-10-18 10:29:43,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 10:29:43,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 10:29:43,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:29:43,417 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 10:29:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:29:44,003 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-18 10:29:44,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 75 [2024-10-18 10:29:44,326 INFO L349 Elim1Store]: treesize reduction 11, result has 71.8 percent of original size [2024-10-18 10:29:44,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 64 [2024-10-18 10:29:54,955 INFO L85 PathProgramCache]: Analyzing trace with hash -986810802, now seen corresponding path program 1 times [2024-10-18 10:29:54,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 10:29:54,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 10:29:54,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:29:54,993 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 10:29:55,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:29:55,728 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-18 10:29:55,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 75 [2024-10-18 10:29:56,060 INFO L349 Elim1Store]: treesize reduction 11, result has 71.8 percent of original size [2024-10-18 10:29:56,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 64 [2024-10-18 10:30:06,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1373385354, now seen corresponding path program 1 times [2024-10-18 10:30:06,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 10:30:06,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 10:30:06,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:30:06,418 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 10:30:06,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:30:06,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-18 10:30:06,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-10-18 10:30:06,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 10:30:06,480 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 10:30:06,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.6875) internal successors, (107), 16 states have internal predecessors, (107), 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) [2024-10-18 10:30:06,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 10:30:06,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 10:30:06,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-10-18 10:30:06,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-10-18 10:30:06,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-10-18 10:30:06,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-18 10:30:06,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 10:30:11,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 10:30:11,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 10:30:11,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-18 10:30:11,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-18 10:30:11,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-18 10:30:11,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-18 10:30:11,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-18 10:30:11,234 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-18 10:30:11,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15,SelfDestructingSolverStorable16,SelfDestructingSolverStorable17 [2024-10-18 10:30:11,421 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-18 10:30:11,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 10:30:11,422 INFO L85 PathProgramCache]: Analyzing trace with hash 894380030, now seen corresponding path program 4 times [2024-10-18 10:30:11,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 10:30:11,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871009266] [2024-10-18 10:30:11,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 10:30:11,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 10:30:11,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 10:30:12,521 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 127 proven. 42 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-10-18 10:30:12,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 10:30:12,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871009266] [2024-10-18 10:30:12,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871009266] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 10:30:12,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804129668] [2024-10-18 10:30:12,521 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-18 10:30:12,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 10:30:12,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 10:30:12,523 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) [2024-10-18 10:30:12,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-18 10:30:12,652 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-18 10:30:12,652 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 10:30:12,654 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-18 10:30:12,655 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 10:30:14,748 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 86 proven. 68 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-10-18 10:30:14,748 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 10:30:15,740 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 86 proven. 4 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-18 10:30:15,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804129668] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 10:30:15,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 10:30:15,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 6] total 27 [2024-10-18 10:30:15,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146692834] [2024-10-18 10:30:15,741 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 10:30:15,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-10-18 10:30:15,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 10:30:16,234 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-18 10:30:16,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 75 [2024-10-18 10:30:16,548 INFO L349 Elim1Store]: treesize reduction 11, result has 71.8 percent of original size [2024-10-18 10:30:16,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 64 [2024-10-18 10:30:28,109 INFO L85 PathProgramCache]: Analyzing trace with hash 971405035, now seen corresponding path program 1 times [2024-10-18 10:30:28,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 10:30:28,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 10:30:28,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:30:28,132 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 10:30:28,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:30:28,839 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-18 10:30:28,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 75 [2024-10-18 10:30:29,194 INFO L349 Elim1Store]: treesize reduction 11, result has 71.8 percent of original size [2024-10-18 10:30:29,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 64 [2024-10-18 10:30:38,806 INFO L85 PathProgramCache]: Analyzing trace with hash -986810777, now seen corresponding path program 1 times [2024-10-18 10:30:38,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 10:30:38,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 10:30:38,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:30:38,834 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 10:30:38,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:30:39,556 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-18 10:30:39,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 75 [2024-10-18 10:30:39,897 INFO L349 Elim1Store]: treesize reduction 11, result has 71.8 percent of original size [2024-10-18 10:30:39,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 64 [2024-10-18 10:30:49,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1373385379, now seen corresponding path program 1 times [2024-10-18 10:30:49,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 10:30:49,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 10:30:49,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:30:49,924 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 10:30:49,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:30:50,716 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-18 10:30:50,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 75 [2024-10-18 10:30:51,055 INFO L349 Elim1Store]: treesize reduction 11, result has 71.8 percent of original size [2024-10-18 10:30:51,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 64 [2024-10-18 10:30:58,962 INFO L85 PathProgramCache]: Analyzing trace with hash -998589537, now seen corresponding path program 1 times [2024-10-18 10:30:58,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 10:30:58,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 10:30:58,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:30:58,993 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 10:30:59,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:30:59,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-10-18 10:30:59,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=608, Unknown=0, NotChecked=0, Total=702 [2024-10-18 10:30:59,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 10:30:59,070 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 10:30:59,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.851851851851852) internal successors, (158), 27 states have internal predecessors, (158), 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) [2024-10-18 10:30:59,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 10:30:59,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 10:30:59,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-10-18 10:30:59,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-10-18 10:30:59,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-10-18 10:30:59,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-18 10:30:59,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-10-18 10:30:59,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 10:31:05,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 10:31:05,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 10:31:05,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-18 10:31:05,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-18 10:31:05,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-18 10:31:05,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-18 10:31:05,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-18 10:31:05,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-10-18 10:31:05,994 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-18 10:31:06,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,SelfDestructingSolverStorable20,SelfDestructingSolverStorable21,SelfDestructingSolverStorable22,SelfDestructingSolverStorable23,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 10:31:06,182 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-18 10:31:06,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 10:31:06,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1601392796, now seen corresponding path program 4 times [2024-10-18 10:31:06,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 10:31:06,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95118214] [2024-10-18 10:31:06,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 10:31:06,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 10:31:06,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 10:31:26,459 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-18 10:31:26,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 10:31:26,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95118214] [2024-10-18 10:31:26,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95118214] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 10:31:26,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590518786] [2024-10-18 10:31:26,460 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-18 10:31:26,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 10:31:26,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 10:31:26,462 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) [2024-10-18 10:31:26,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-18 10:31:26,980 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-18 10:31:26,980 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 10:31:26,990 INFO L255 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 101 conjuncts are in the unsatisfiable core [2024-10-18 10:31:26,996 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 10:31:32,760 INFO L349 Elim1Store]: treesize reduction 28, result has 52.5 percent of original size [2024-10-18 10:31:32,760 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 46 [2024-10-18 10:31:36,646 INFO L349 Elim1Store]: treesize reduction 52, result has 37.3 percent of original size [2024-10-18 10:31:36,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 111 treesize of output 106 [2024-10-18 10:31:43,508 INFO L349 Elim1Store]: treesize reduction 76, result has 29.0 percent of original size [2024-10-18 10:31:43,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 30 case distinctions, treesize of input 257 treesize of output 197 [2024-10-18 10:31:51,553 INFO L349 Elim1Store]: treesize reduction 100, result has 23.7 percent of original size [2024-10-18 10:31:51,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 6 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 57 case distinctions, treesize of input 351 treesize of output 256 [2024-10-18 10:32:00,898 INFO L349 Elim1Store]: treesize reduction 124, result has 20.0 percent of original size [2024-10-18 10:32:00,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 10 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 93 case distinctions, treesize of input 465 treesize of output 335 [2024-10-18 10:33:23,597 WARN L286 SmtUtils]: Spent 1.21m on a formula simplification that was a NOOP. DAG size: 2167 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-10-18 10:33:23,599 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-18 10:33:23,602 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 95 select indices, 95 select index equivalence classes, 10 disjoint index pairs (out of 4465 index pairs), introduced 95 new quantified variables, introduced 4465 case distinctions, treesize of input 1734 treesize of output 7486 [2024-10-18 10:39:20,651 WARN L249 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-10-18 10:39:20,652 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2024-10-18 10:39:20,653 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-10-18 10:39:20,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-18 10:39:20,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-10-18 10:39:20,854 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.assertTerm(Scriptor.java:147) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.assertTerm(DiffWrapperScript.java:111) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.assertTerm(WrapperScript.java:158) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:584) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:728) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:195) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:290) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:180) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:159) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:309) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isCounterexampleFeasible(PartialOrderCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:421) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:307) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 61 more [2024-10-18 10:39:20,861 INFO L158 Benchmark]: Toolchain (without parser) took 706617.99ms. Allocated memory was 176.2MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 119.9MB in the beginning and 773.0MB in the end (delta: -653.1MB). Peak memory consumption was 951.2MB. Max. memory is 16.1GB. [2024-10-18 10:39:20,861 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 176.2MB. Free memory was 138.0MB in the beginning and 137.8MB in the end (delta: 184.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-18 10:39:20,861 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.45ms. Allocated memory is still 176.2MB. Free memory was 119.4MB in the beginning and 106.2MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-18 10:39:20,861 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.43ms. Allocated memory is still 176.2MB. Free memory was 106.2MB in the beginning and 104.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-18 10:39:20,861 INFO L158 Benchmark]: Boogie Preprocessor took 45.65ms. Allocated memory is still 176.2MB. Free memory was 104.2MB in the beginning and 102.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-18 10:39:20,862 INFO L158 Benchmark]: RCFGBuilder took 870.53ms. Allocated memory was 176.2MB in the beginning and 272.6MB in the end (delta: 96.5MB). Free memory was 102.1MB in the beginning and 218.6MB in the end (delta: -116.5MB). Peak memory consumption was 42.3MB. Max. memory is 16.1GB. [2024-10-18 10:39:20,862 INFO L158 Benchmark]: TraceAbstraction took 705301.98ms. Allocated memory was 272.6MB in the beginning and 1.6GB in the end (delta: 1.3GB). Free memory was 217.6MB in the beginning and 773.0MB in the end (delta: -555.4MB). Peak memory consumption was 950.8MB. Max. memory is 16.1GB. [2024-10-18 10:39:20,865 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 176.2MB. Free memory was 138.0MB in the beginning and 137.8MB in the end (delta: 184.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.45ms. Allocated memory is still 176.2MB. Free memory was 119.4MB in the beginning and 106.2MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.43ms. Allocated memory is still 176.2MB. Free memory was 106.2MB in the beginning and 104.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.65ms. Allocated memory is still 176.2MB. Free memory was 104.2MB in the beginning and 102.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 870.53ms. Allocated memory was 176.2MB in the beginning and 272.6MB in the end (delta: 96.5MB). Free memory was 102.1MB in the beginning and 218.6MB in the end (delta: -116.5MB). Peak memory consumption was 42.3MB. Max. memory is 16.1GB. * TraceAbstraction took 705301.98ms. Allocated memory was 272.6MB in the beginning and 1.6GB in the end (delta: 1.3GB). Free memory was 217.6MB in the beginning and 773.0MB in the end (delta: -555.4MB). Peak memory consumption was 950.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-10-18 10:39:20,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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-three-array-sum.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.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 c1d27b7f98ac68d2da6120346c107c87df7f6f708200f0d5d2c806741122116e --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking IA --traceabstraction.criterion.for.conditional.commutativity.checking DEFAULT -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.conditional-comm-b86fb0b-m [2024-10-18 10:39:23,214 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-18 10:39:23,305 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2024-10-18 10:39:23,311 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-18 10:39:23,313 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-18 10:39:23,343 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-18 10:39:23,343 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-18 10:39:23,344 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-18 10:39:23,346 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-18 10:39:23,347 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-18 10:39:23,348 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-18 10:39:23,348 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-18 10:39:23,349 INFO L153 SettingsManager]: * Use SBE=true [2024-10-18 10:39:23,349 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-18 10:39:23,351 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-18 10:39:23,351 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-18 10:39:23,351 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-18 10:39:23,352 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-18 10:39:23,352 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-18 10:39:23,352 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-18 10:39:23,352 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-18 10:39:23,356 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-18 10:39:23,357 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-18 10:39:23,357 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-18 10:39:23,357 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-18 10:39:23,357 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-18 10:39:23,357 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-18 10:39:23,358 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-18 10:39:23,358 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-18 10:39:23,358 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-18 10:39:23,358 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-18 10:39:23,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-18 10:39:23,359 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-18 10:39:23,370 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-18 10:39:23,370 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-18 10:39:23,370 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-18 10:39:23,371 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-18 10:39:23,371 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-18 10:39:23,371 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-18 10:39:23,372 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-18 10:39:23,372 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-18 10:39:23,373 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-18 10:39:23,373 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-18 10:39:23,373 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1d27b7f98ac68d2da6120346c107c87df7f6f708200f0d5d2c806741122116e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> IA Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> DEFAULT [2024-10-18 10:39:23,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-18 10:39:23,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-18 10:39:23,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-18 10:39:23,704 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-18 10:39:23,705 INFO L274 PluginConnector]: CDTParser initialized [2024-10-18 10:39:23,706 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2024-10-18 10:39:25,120 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-18 10:39:25,356 INFO L384 CDTParser]: Found 1 translation units. [2024-10-18 10:39:25,357 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2024-10-18 10:39:25,369 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/9a6c2d4ca/db4892931ac7475f8133523fe3f70315/FLAGade6caffc [2024-10-18 10:39:25,389 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/9a6c2d4ca/db4892931ac7475f8133523fe3f70315 [2024-10-18 10:39:25,392 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-18 10:39:25,394 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-18 10:39:25,395 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-18 10:39:25,397 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-18 10:39:25,402 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-18 10:39:25,403 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.10 10:39:25" (1/1) ... [2024-10-18 10:39:25,404 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56336d86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 10:39:25, skipping insertion in model container [2024-10-18 10:39:25,406 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.10 10:39:25" (1/1) ... [2024-10-18 10:39:25,431 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-18 10:39:25,666 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c[2730,2743] [2024-10-18 10:39:25,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-18 10:39:25,696 INFO L200 MainTranslator]: Completed pre-run [2024-10-18 10:39:25,726 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c[2730,2743] [2024-10-18 10:39:25,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-18 10:39:25,751 INFO L204 MainTranslator]: Completed translation [2024-10-18 10:39:25,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 10:39:25 WrapperNode [2024-10-18 10:39:25,752 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-18 10:39:25,754 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-18 10:39:25,754 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-18 10:39:25,755 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-18 10:39:25,762 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 10:39:25" (1/1) ... [2024-10-18 10:39:25,778 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 10:39:25" (1/1) ... [2024-10-18 10:39:25,806 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 137 [2024-10-18 10:39:25,806 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-18 10:39:25,807 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-18 10:39:25,807 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-18 10:39:25,807 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-18 10:39:25,817 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 10:39:25" (1/1) ... [2024-10-18 10:39:25,818 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 10:39:25" (1/1) ... [2024-10-18 10:39:25,827 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 10:39:25" (1/1) ... [2024-10-18 10:39:25,827 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 10:39:25" (1/1) ... [2024-10-18 10:39:25,842 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 10:39:25" (1/1) ... [2024-10-18 10:39:25,846 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 10:39:25" (1/1) ... [2024-10-18 10:39:25,848 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 10:39:25" (1/1) ... [2024-10-18 10:39:25,850 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 10:39:25" (1/1) ... [2024-10-18 10:39:25,856 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-18 10:39:25,861 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-18 10:39:25,861 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-18 10:39:25,861 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-18 10:39:25,862 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 10:39:25" (1/1) ... [2024-10-18 10:39:25,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-18 10:39:25,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 10:39:25,905 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) [2024-10-18 10:39:25,908 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 [2024-10-18 10:39:25,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-18 10:39:25,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-10-18 10:39:25,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-10-18 10:39:25,961 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-18 10:39:25,961 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-18 10:39:25,961 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-18 10:39:25,962 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-18 10:39:25,962 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-18 10:39:25,962 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-18 10:39:25,962 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-18 10:39:25,962 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-18 10:39:25,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-18 10:39:25,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-18 10:39:25,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-18 10:39:25,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-10-18 10:39:25,964 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-18 10:39:26,073 INFO L238 CfgBuilder]: Building ICFG [2024-10-18 10:39:26,077 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-18 10:39:26,578 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-18 10:39:26,578 INFO L287 CfgBuilder]: Performing block encoding [2024-10-18 10:39:26,896 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-18 10:39:26,897 INFO L314 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-18 10:39:26,897 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.10 10:39:26 BoogieIcfgContainer [2024-10-18 10:39:26,898 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-18 10:39:26,901 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-18 10:39:26,901 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-18 10:39:26,905 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-18 10:39:26,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.10 10:39:25" (1/3) ... [2024-10-18 10:39:26,906 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6374fc91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.10 10:39:26, skipping insertion in model container [2024-10-18 10:39:26,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 10:39:25" (2/3) ... [2024-10-18 10:39:26,907 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6374fc91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.10 10:39:26, skipping insertion in model container [2024-10-18 10:39:26,907 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.10 10:39:26" (3/3) ... [2024-10-18 10:39:26,909 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-sum.wvr.c [2024-10-18 10:39:26,927 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-18 10:39:26,927 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-18 10:39:26,927 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-18 10:39:26,987 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-18 10:39:27,035 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 10:39:27,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 10:39:27,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 10:39:27,038 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) [2024-10-18 10:39:27,039 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 [2024-10-18 10:39:27,129 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 10:39:27,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 10:39:27,150 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 10:39:27,156 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;@37bcb0cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 10:39:27,156 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-18 10:39:28,541 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-18 10:39:28,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 10:39:28,549 INFO L85 PathProgramCache]: Analyzing trace with hash -2079720497, now seen corresponding path program 1 times [2024-10-18 10:39:28,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-18 10:39:28,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1552931488] [2024-10-18 10:39:28,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 10:39:28,565 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-18 10:39:28,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-18 10:39:28,584 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-18 10:39:28,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-18 10:39:28,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 10:39:28,737 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-18 10:39:28,742 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 10:39:28,857 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-18 10:39:28,858 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-18 10:39:28,858 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-18 10:39:28,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1552931488] [2024-10-18 10:39:28,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1552931488] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 10:39:28,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 10:39:28,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-18 10:39:28,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401771302] [2024-10-18 10:39:28,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 10:39:28,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-18 10:39:28,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-18 10:39:29,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-18 10:39:29,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-18 10:39:29,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 10:39:29,160 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 10:39:29,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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) [2024-10-18 10:39:29,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 10:39:29,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 10:39:29,363 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-18 10:39:29,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-18 10:39:29,560 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-18 10:39:29,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 10:39:29,561 INFO L85 PathProgramCache]: Analyzing trace with hash 249882827, now seen corresponding path program 1 times [2024-10-18 10:39:29,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-18 10:39:29,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [201700185] [2024-10-18 10:39:29,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 10:39:29,562 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-18 10:39:29,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-18 10:39:29,565 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-18 10:39:29,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-18 10:39:29,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 10:39:29,722 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-18 10:39:29,725 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 10:39:29,933 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-18 10:39:29,933 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 10:39:30,084 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-18 10:39:30,085 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-18 10:39:30,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [201700185] [2024-10-18 10:39:30,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [201700185] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 10:39:30,085 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-18 10:39:30,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-10-18 10:39:30,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846015162] [2024-10-18 10:39:30,086 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-18 10:39:30,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-18 10:39:30,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-18 10:39:30,852 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-18 10:39:30,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 79 [2024-10-18 10:39:31,081 INFO L349 Elim1Store]: treesize reduction 11, result has 74.4 percent of original size [2024-10-18 10:39:31,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 68 [2024-10-18 10:39:40,170 INFO L85 PathProgramCache]: Analyzing trace with hash -48674917, now seen corresponding path program 1 times [2024-10-18 10:39:40,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 10:39:40,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 10:39:40,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:39:40,919 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 10:39:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:39:41,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-18 10:39:41,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-10-18 10:39:41,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 10:39:41,407 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 10:39:41,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 11 states have internal predecessors, (66), 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) [2024-10-18 10:39:41,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 10:39:41,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 10:39:46,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 10:39:46,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-18 10:39:46,600 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-10-18 10:39:46,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,SelfDestructingSolverStorable0 [2024-10-18 10:39:46,796 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-18 10:39:46,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 10:39:46,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1442416113, now seen corresponding path program 2 times [2024-10-18 10:39:46,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-18 10:39:46,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [186971986] [2024-10-18 10:39:46,797 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-18 10:39:46,797 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-18 10:39:46,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-18 10:39:46,800 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-18 10:39:46,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-10-18 10:39:46,970 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-18 10:39:46,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 10:39:46,976 INFO L255 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-18 10:39:46,979 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 10:39:51,166 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-18 10:39:51,166 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 10:39:56,561 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-18 10:39:56,562 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-18 10:39:56,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [186971986] [2024-10-18 10:39:56,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [186971986] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 10:39:56,562 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-18 10:39:56,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 15 [2024-10-18 10:39:56,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504535214] [2024-10-18 10:39:56,563 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-18 10:39:56,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-18 10:39:56,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-18 10:39:58,965 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-18 10:39:58,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 79 [2024-10-18 10:40:00,342 INFO L349 Elim1Store]: treesize reduction 11, result has 74.4 percent of original size [2024-10-18 10:40:00,342 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 68 [2024-10-18 10:40:17,194 INFO L85 PathProgramCache]: Analyzing trace with hash 2125292772, now seen corresponding path program 1 times [2024-10-18 10:40:17,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 10:40:17,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 10:40:17,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:40:17,536 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 10:40:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 10:40:17,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-18 10:40:17,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-10-18 10:40:17,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 10:40:17,877 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 10:40:17,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.2) internal successors, (78), 15 states have internal predecessors, (78), 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) [2024-10-18 10:40:17,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 10:40:17,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-18 10:40:17,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 10:40:37,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 10:40:37,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-18 10:40:37,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-18 10:40:37,170 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-10-18 10:40:37,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-18 10:40:37,367 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-18 10:40:37,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 10:40:37,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1136166378, now seen corresponding path program 3 times [2024-10-18 10:40:37,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-18 10:40:37,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1417004134] [2024-10-18 10:40:37,368 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-18 10:40:37,369 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-18 10:40:37,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-18 10:40:37,370 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-18 10:40:37,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-10-18 10:40:37,522 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-18 10:40:37,522 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 10:40:37,526 INFO L255 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-18 10:40:37,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 10:40:49,003 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 31 proven. 5 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-18 10:40:49,003 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 10:40:54,759 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 31 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-18 10:40:54,760 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-18 10:40:54,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1417004134] [2024-10-18 10:40:54,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1417004134] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 10:40:54,760 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-18 10:40:54,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 20 [2024-10-18 10:40:54,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885829974] [2024-10-18 10:40:54,761 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-18 10:40:54,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-18 10:40:54,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-18 10:40:57,384 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-18 10:40:57,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 79 [2024-10-18 10:40:59,107 INFO L349 Elim1Store]: treesize reduction 11, result has 74.4 percent of original size [2024-10-18 10:40:59,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 68 Killed by 15