./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/mult-dist.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20174008 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/mult-dist.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 c31f1603fd15e011308b2e8fcd1cd45b23f0b00ac0b8b466c4f212460081639c --- Real Ultimate output --- This is Ultimate 0.2.3-?-2017400-m [2023-11-24 09:09:13,193 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 09:09:13,276 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2023-11-24 09:09:13,280 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 09:09:13,281 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 09:09:13,309 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 09:09:13,310 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 09:09:13,310 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 09:09:13,312 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 09:09:13,315 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 09:09:13,316 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 09:09:13,316 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 09:09:13,317 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 09:09:13,318 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 09:09:13,318 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 09:09:13,319 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 09:09:13,319 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 09:09:13,319 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 09:09:13,319 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 09:09:13,320 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 09:09:13,320 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 09:09:13,320 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 09:09:13,321 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 09:09:13,321 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 09:09:13,321 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 09:09:13,322 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 09:09:13,322 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 09:09:13,322 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 09:09:13,323 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 09:09:13,323 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 09:09:13,335 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 09:09:13,336 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 09:09:13,337 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 09:09:13,337 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 09:09:13,337 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-24 09:09:13,337 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 09:09:13,338 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 09:09:13,338 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-24 09:09:13,338 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 09:09:13,339 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-24 09:09:13,339 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-24 09:09:13,339 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c31f1603fd15e011308b2e8fcd1cd45b23f0b00ac0b8b466c4f212460081639c [2023-11-24 09:09:13,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 09:09:13,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 09:09:13,632 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 09:09:13,633 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 09:09:13,634 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 09:09:13,635 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/mult-dist.wvr.c [2023-11-24 09:09:14,806 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 09:09:15,025 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 09:09:15,025 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/mult-dist.wvr.c [2023-11-24 09:09:15,040 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/7a246c3da/262a035c543a410ab9fddbfc8ad7bcba/FLAG16b6c3d21 [2023-11-24 09:09:15,056 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/7a246c3da/262a035c543a410ab9fddbfc8ad7bcba [2023-11-24 09:09:15,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 09:09:15,059 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 09:09:15,060 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 09:09:15,060 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 09:09:15,065 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 09:09:15,066 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:09:15" (1/1) ... [2023-11-24 09:09:15,067 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@595a4083 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:09:15, skipping insertion in model container [2023-11-24 09:09:15,067 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:09:15" (1/1) ... [2023-11-24 09:09:15,094 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 09:09:15,277 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/mult-dist.wvr.c[2155,2168] [2023-11-24 09:09:15,283 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 09:09:15,293 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 09:09:15,324 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/mult-dist.wvr.c[2155,2168] [2023-11-24 09:09:15,327 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 09:09:15,342 INFO L206 MainTranslator]: Completed translation [2023-11-24 09:09:15,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:09:15 WrapperNode [2023-11-24 09:09:15,343 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 09:09:15,344 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 09:09:15,344 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 09:09:15,345 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 09:09:15,351 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:09:15" (1/1) ... [2023-11-24 09:09:15,367 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:09:15" (1/1) ... [2023-11-24 09:09:15,383 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 72 [2023-11-24 09:09:15,383 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 09:09:15,384 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 09:09:15,384 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 09:09:15,384 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 09:09:15,391 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:09:15" (1/1) ... [2023-11-24 09:09:15,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:09:15" (1/1) ... [2023-11-24 09:09:15,394 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:09:15" (1/1) ... [2023-11-24 09:09:15,394 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:09:15" (1/1) ... [2023-11-24 09:09:15,399 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:09:15" (1/1) ... [2023-11-24 09:09:15,403 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:09:15" (1/1) ... [2023-11-24 09:09:15,405 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:09:15" (1/1) ... [2023-11-24 09:09:15,406 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:09:15" (1/1) ... [2023-11-24 09:09:15,408 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 09:09:15,409 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 09:09:15,409 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 09:09:15,409 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 09:09:15,412 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:09:15" (1/1) ... [2023-11-24 09:09:15,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 09:09:15,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-24 09:09:15,447 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) [2023-11-24 09:09:15,449 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 [2023-11-24 09:09:15,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 09:09:15,485 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-24 09:09:15,485 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-24 09:09:15,485 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-24 09:09:15,485 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-24 09:09:15,486 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-24 09:09:15,486 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-24 09:09:15,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 09:09:15,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 09:09:15,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 09:09:15,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 09:09:15,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 09:09:15,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 09:09:15,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 09:09:15,488 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-24 09:09:15,574 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 09:09:15,576 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 09:09:15,763 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 09:09:15,975 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 09:09:15,975 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-24 09:09:15,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:09:15 BoogieIcfgContainer [2023-11-24 09:09:15,976 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 09:09:15,980 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 09:09:15,980 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 09:09:15,984 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 09:09:15,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 09:09:15" (1/3) ... [2023-11-24 09:09:15,985 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b0ad5d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:09:15, skipping insertion in model container [2023-11-24 09:09:15,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:09:15" (2/3) ... [2023-11-24 09:09:15,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b0ad5d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:09:15, skipping insertion in model container [2023-11-24 09:09:15,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:09:15" (3/3) ... [2023-11-24 09:09:15,988 INFO L112 eAbstractionObserver]: Analyzing ICFG mult-dist.wvr.c [2023-11-24 09:09:16,004 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-24 09:09:16,011 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 09:09:16,011 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 09:09:16,012 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-24 09:09:16,050 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-24 09:09:16,086 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 09:09:16,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-24 09:09:16,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-24 09:09:16,088 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) [2023-11-24 09:09:16,117 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 [2023-11-24 09:09:16,136 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-24 09:09:16,166 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-11-24 09:09:16,175 INFO L357 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, mHoare=true, 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;@7d31d1f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 09:09:16,176 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-24 09:09:16,284 INFO L420 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)] === [2023-11-24 09:09:16,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 09:09:16,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1193994924, now seen corresponding path program 1 times [2023-11-24 09:09:16,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 09:09:16,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402266696] [2023-11-24 09:09:16,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 09:09:16,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 09:09:16,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 09:09:17,355 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 09:09:17,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 09:09:17,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402266696] [2023-11-24 09:09:17,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402266696] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 09:09:17,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090718713] [2023-11-24 09:09:17,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 09:09:17,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 09:09:17,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-24 09:09:17,405 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) [2023-11-24 09:09:17,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-24 09:09:17,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 09:09:17,540 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-24 09:09:17,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 09:09:17,841 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 09:09:17,841 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 09:09:18,458 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 09:09:18,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2090718713] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 09:09:18,459 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 09:09:18,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 23 [2023-11-24 09:09:18,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825699208] [2023-11-24 09:09:18,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 09:09:18,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-24 09:09:18,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 09:09:18,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-24 09:09:18,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2023-11-24 09:09:18,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 09:09:18,502 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 09:09:18,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.8695652173913044) internal successors, (43), 23 states have internal predecessors, (43), 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) [2023-11-24 09:09:18,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 09:09:19,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-24 09:09:19,637 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-24 09:09:19,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-24 09:09:19,819 INFO L420 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)] === [2023-11-24 09:09:19,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 09:09:19,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1259933876, now seen corresponding path program 1 times [2023-11-24 09:09:19,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 09:09:19,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731161627] [2023-11-24 09:09:19,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 09:09:19,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 09:09:19,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 09:09:20,755 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 09:09:20,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 09:09:20,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731161627] [2023-11-24 09:09:20,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731161627] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 09:09:20,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190357627] [2023-11-24 09:09:20,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 09:09:20,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 09:09:20,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-24 09:09:20,758 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) [2023-11-24 09:09:20,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-24 09:09:20,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 09:09:20,944 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-24 09:09:20,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 09:09:24,896 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 09:09:24,897 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 09:09:26,264 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 09:09:26,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190357627] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 09:09:26,265 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 09:09:26,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 37 [2023-11-24 09:09:26,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533681525] [2023-11-24 09:09:26,265 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 09:09:26,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-11-24 09:09:26,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 09:09:26,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-11-24 09:09:26,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=1131, Unknown=0, NotChecked=0, Total=1332 [2023-11-24 09:09:26,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 09:09:26,268 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 09:09:26,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 1.5405405405405406) internal successors, (57), 37 states have internal predecessors, (57), 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) [2023-11-24 09:09:26,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2023-11-24 09:09:26,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 09:09:50,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 09:10:10,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 09:10:11,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 09:10:35,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-24 09:10:35,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-11-24 09:10:35,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-24 09:10:35,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 09:10:35,679 INFO L420 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)] === [2023-11-24 09:10:35,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 09:10:35,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1613697164, now seen corresponding path program 2 times [2023-11-24 09:10:35,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 09:10:35,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722642604] [2023-11-24 09:10:35,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 09:10:35,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 09:10:35,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 09:10:37,591 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 09:10:37,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 09:10:37,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722642604] [2023-11-24 09:10:37,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722642604] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 09:10:37,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394715971] [2023-11-24 09:10:37,592 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-24 09:10:37,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 09:10:37,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-24 09:10:37,593 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) [2023-11-24 09:10:37,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-24 09:10:37,735 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-24 09:10:37,736 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 09:10:37,741 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 54 conjunts are in the unsatisfiable core [2023-11-24 09:10:37,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 09:10:41,668 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 09:10:41,668 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 09:10:57,863 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 83 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 09:10:57,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394715971] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 09:10:57,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 09:10:57,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 61 [2023-11-24 09:10:57,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817521664] [2023-11-24 09:10:57,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 09:10:57,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2023-11-24 09:10:57,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 09:10:57,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2023-11-24 09:10:57,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=676, Invalid=2982, Unknown=2, NotChecked=0, Total=3660 [2023-11-24 09:10:57,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 09:10:57,867 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 09:10:57,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 1.3278688524590163) internal successors, (81), 61 states have internal predecessors, (81), 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) [2023-11-24 09:10:57,868 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2023-11-24 09:10:57,868 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2023-11-24 09:10:57,868 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 09:12:53,120 WARN L293 SmtUtils]: Spent 1.22m on a formula simplification. DAG size of input: 142 DAG size of output: 137 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-24 09:15:08,212 WARN L293 SmtUtils]: Spent 1.58m on a formula simplification. DAG size of input: 244 DAG size of output: 127 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-24 09:15:10,955 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse25 (mod (+ c_thread2Thread1of1ForFork0_~i~1 6) 4294967296)) (.cse49 (mod (+ c_thread1Thread1of1ForFork2_~i~0 6) 4294967296)) (.cse31 (mod (+ c_thread2Thread1of1ForFork0_~i~1 5) 4294967296)) (.cse63 (mod (+ c_thread1Thread1of1ForFork2_~i~0 3) 4294967296)) (.cse53 (mod (+ 2 c_thread3Thread1of1ForFork1_~i~2) 4294967296)) (.cse54 (mod (+ c_thread2Thread1of1ForFork0_~i~1 2) 4294967296)) (.cse13 (mod c_thread2Thread1of1ForFork0_~i~1 4294967296)) (.cse14 (mod (+ c_thread1Thread1of1ForFork2_~i~0 1) 4294967296)) (.cse36 (mod c_~a~0 4294967296)) (.cse52 (mod c_~b~0 4294967296)) (.cse35 (mod (+ c_thread1Thread1of1ForFork2_~i~0 2) 4294967296)) (.cse41 (mod (+ c_thread2Thread1of1ForFork0_~i~1 1) 4294967296)) (.cse45 (mod (+ c_thread2Thread1of1ForFork0_~i~1 4) 4294967296)) (.cse30 (mod (+ 5 c_thread1Thread1of1ForFork2_~i~0) 4294967296)) (.cse24 (mod (+ 7 c_thread1Thread1of1ForFork2_~i~0) 4294967296)) (.cse11 (mod (+ c_thread3Thread1of1ForFork1_~i~2 4) 4294967296)) (.cse0 (mod (+ 3 c_thread3Thread1of1ForFork1_~i~2) 4294967296)) (.cse21 (mod (+ c_thread3Thread1of1ForFork1_~i~2 1) 4294967296)) (.cse64 (mod c_thread3Thread1of1ForFork1_~i~2 4294967296)) (.cse47 (mod (+ c_thread1Thread1of1ForFork2_~i~0 8) 4294967296)) (.cse65 (mod (+ 7 c_thread2Thread1of1ForFork0_~i~1) 4294967296)) (.cse29 (mod (+ 5 c_thread3Thread1of1ForFork1_~i~2) 4294967296)) (.cse23 (mod (+ 6 c_thread3Thread1of1ForFork1_~i~2) 4294967296)) (.cse62 (mod (+ c_thread2Thread1of1ForFork0_~i~1 3) 4294967296)) (.cse46 (mod (+ c_thread1Thread1of1ForFork2_~i~0 4) 4294967296))) (let ((.cse1 (+ 2 .cse62 .cse46)) (.cse6 (+ 4294967294 .cse23)) (.cse5 (+ .cse29 4294967297)) (.cse17 (+ .cse47 .cse65)) (.cse16 (+ 4294967297 .cse64)) (.cse12 (+ 4294967294 .cse21)) (.cse10 (+ .cse0 1)) (.cse33 (+ .cse11 4294967294)) (.cse34 (+ .cse0 4294967297)) (.cse27 (+ .cse24 .cse65)) (.cse18 (+ .cse45 2 .cse30)) (.cse32 (+ .cse11 1)) (.cse15 (+ .cse35 .cse41)) (.cse37 (< .cse41 .cse52)) (.cse50 (< .cse14 .cse36)) (.cse38 (< .cse52 (+ .cse13 1))) (.cse51 (< .cse36 (+ (mod c_thread1Thread1of1ForFork2_~i~0 4294967296) 1))) (.cse39 (< .cse64 (mod (+ c_~b~0 c_~a~0) 4294967296))) (.cse20 (+ .cse64 1)) (.cse40 (+ .cse54 .cse35)) (.cse3 (+ .cse53 1)) (.cse48 (+ .cse45 .cse46)) (.cse55 (+ .cse62 .cse63)) (.cse8 (+ .cse54 2 .cse63)) (.cse60 (+ .cse53 4294967297)) (.cse61 (+ .cse0 4294967294)) (.cse7 (+ .cse49 .cse31)) (.cse2 (+ .cse45 .cse30)) (.cse4 (+ .cse24 .cse25)) (.cse26 (+ .cse29 1)) (.cse57 (+ .cse49 2 .cse31)) (.cse9 (+ .cse62 .cse46)) (.cse58 (+ 4294967297 .cse21)) (.cse59 (+ .cse53 4294967294)) (.cse22 (+ 2 .cse35 .cse41)) (.cse19 (+ .cse54 .cse63)) (.cse56 (+ .cse21 1)) (.cse28 (+ .cse49 .cse25)) (.cse42 (+ .cse11 4294967297)) (.cse43 (+ .cse29 4294967294)) (.cse44 (+ .cse30 .cse31))) (and (or (< .cse0 .cse1) (< .cse2 .cse3)) (or (< .cse4 .cse5) (< .cse6 .cse7)) (or (< .cse0 .cse8) (< .cse9 .cse3)) (or (< .cse2 .cse10) (< .cse11 .cse1)) (or (< .cse12 (+ .cse13 .cse14)) (< .cse15 .cse16)) (or (< .cse17 6) (< 4 .cse4)) (or (< .cse11 .cse18) (< .cse7 .cse10)) (or (< .cse19 .cse20) (< .cse21 .cse22)) (or (< .cse23 (+ .cse24 2 .cse25)) (< .cse17 .cse26)) (or (< .cse27 .cse5) (< .cse6 .cse28)) (or (< .cse29 (+ 2 .cse30 .cse31)) (< .cse28 .cse32)) (or (< .cse33 .cse9) (< .cse2 .cse34)) (or (< .cse12 .cse15) (< .cse19 .cse16)) (or (< .cse35 .cse36) .cse37 (< .cse36 (+ .cse14 1)) .cse38 .cse39) (or (< .cse6 .cse4) (< .cse17 .cse5)) (or (< .cse17 4294967302) (< 4294967300 .cse4)) (or (< .cse33 .cse2) (< .cse7 .cse34)) (or (< .cse40 .cse16) (< .cse12 (+ .cse14 .cse41))) (or (< .cse4 .cse42) (< .cse43 .cse7)) (or (< .cse44 .cse10) (< .cse11 (+ .cse45 2 .cse46))) (< .cse47 4294967295) (or (< .cse33 .cse48) (< .cse44 .cse34)) (or (< .cse23 (+ .cse49 2 .cse25)) (< .cse27 .cse26)) (or (< .cse29 .cse18) (< .cse7 .cse32)) (or .cse50 .cse51 (< .cse13 .cse52) .cse39) (or (< .cse53 (+ .cse54 2 .cse35)) (< .cse55 .cse56)) (or (< .cse4 .cse32) (< .cse29 .cse57)) (or (< .cse19 .cse58) (< .cse59 .cse15)) (or (< .cse15 .cse20) (< .cse21 (+ .cse13 2 .cse14))) (or .cse37 .cse50 .cse38 .cse51 .cse39) (or (< .cse2 .cse60) (< .cse61 .cse9)) (or (< .cse21 (+ 2 .cse14 .cse41)) (< .cse40 .cse20)) (or (< .cse55 .cse58) (< .cse59 .cse40)) (or (< .cse48 .cse3) (< .cse0 (+ 2 .cse62 .cse63))) (or (< .cse48 .cse60) (< .cse61 .cse55)) (or (< .cse53 .cse8) (< .cse9 .cse56)) (or (< .cse9 .cse60) (< .cse61 .cse19)) (or (< .cse7 .cse42) (< .cse43 .cse2)) (or (< .cse4 .cse26) (< .cse23 .cse57)) (or (< .cse9 .cse58) (< .cse59 .cse19)) (or (< .cse53 .cse22) (< .cse19 .cse56)) (or (< .cse28 .cse42) (< .cse43 .cse44))))) is different from false [2023-11-24 09:15:26,365 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse25 (mod (+ c_thread2Thread1of1ForFork0_~i~1 6) 4294967296)) (.cse49 (mod (+ c_thread1Thread1of1ForFork2_~i~0 6) 4294967296)) (.cse31 (mod (+ c_thread2Thread1of1ForFork0_~i~1 5) 4294967296)) (.cse60 (mod (+ c_thread1Thread1of1ForFork2_~i~0 3) 4294967296)) (.cse50 (mod (+ 2 c_thread3Thread1of1ForFork1_~i~2) 4294967296)) (.cse51 (mod (+ c_thread2Thread1of1ForFork0_~i~1 2) 4294967296)) (.cse13 (mod c_thread2Thread1of1ForFork0_~i~1 4294967296)) (.cse62 (mod c_~b~0 4294967296)) (.cse35 (mod (+ c_thread1Thread1of1ForFork2_~i~0 2) 4294967296)) (.cse41 (mod (+ c_thread2Thread1of1ForFork0_~i~1 1) 4294967296)) (.cse45 (mod (+ c_thread2Thread1of1ForFork0_~i~1 4) 4294967296)) (.cse30 (mod (+ 5 c_thread1Thread1of1ForFork2_~i~0) 4294967296)) (.cse24 (mod (+ 7 c_thread1Thread1of1ForFork2_~i~0) 4294967296)) (.cse11 (mod (+ c_thread3Thread1of1ForFork1_~i~2 4) 4294967296)) (.cse0 (mod (+ 3 c_thread3Thread1of1ForFork1_~i~2) 4294967296)) (.cse21 (mod (+ c_thread3Thread1of1ForFork1_~i~2 1) 4294967296)) (.cse61 (mod c_thread3Thread1of1ForFork1_~i~2 4294967296)) (.cse47 (mod (+ c_thread1Thread1of1ForFork2_~i~0 8) 4294967296)) (.cse63 (mod (+ 7 c_thread2Thread1of1ForFork0_~i~1) 4294967296)) (.cse29 (mod (+ 5 c_thread3Thread1of1ForFork1_~i~2) 4294967296)) (.cse23 (mod (+ 6 c_thread3Thread1of1ForFork1_~i~2) 4294967296)) (.cse59 (mod (+ c_thread2Thread1of1ForFork0_~i~1 3) 4294967296)) (.cse46 (mod (+ c_thread1Thread1of1ForFork2_~i~0 4) 4294967296))) (let ((.cse1 (+ 2 .cse59 .cse46)) (.cse6 (+ 4294967294 .cse23)) (.cse5 (+ .cse29 4294967297)) (.cse17 (+ .cse47 .cse63)) (.cse16 (+ 4294967297 .cse61)) (.cse12 (+ 4294967294 .cse21)) (.cse10 (+ .cse0 1)) (.cse33 (+ .cse11 4294967294)) (.cse34 (+ .cse0 4294967297)) (.cse27 (+ .cse24 .cse63)) (.cse18 (+ .cse45 2 .cse30)) (.cse32 (+ .cse11 1)) (.cse15 (+ .cse35 .cse41)) (.cse37 (< .cse41 .cse62)) (.cse38 (< .cse62 (+ .cse13 1))) (.cse36 (mod c_~a~0 4294967296)) (.cse39 (< .cse61 (mod (+ c_~b~0 c_~a~0) 4294967296))) (.cse14 (mod (+ c_thread1Thread1of1ForFork2_~i~0 1) 4294967296)) (.cse20 (+ .cse61 1)) (.cse40 (+ .cse51 .cse35)) (.cse3 (+ .cse50 1)) (.cse48 (+ .cse45 .cse46)) (.cse52 (+ .cse59 .cse60)) (.cse8 (+ .cse51 2 .cse60)) (.cse57 (+ .cse50 4294967297)) (.cse58 (+ .cse0 4294967294)) (.cse7 (+ .cse49 .cse31)) (.cse2 (+ .cse45 .cse30)) (.cse4 (+ .cse24 .cse25)) (.cse26 (+ .cse29 1)) (.cse54 (+ .cse49 2 .cse31)) (.cse9 (+ .cse59 .cse46)) (.cse55 (+ 4294967297 .cse21)) (.cse56 (+ .cse50 4294967294)) (.cse22 (+ 2 .cse35 .cse41)) (.cse19 (+ .cse51 .cse60)) (.cse53 (+ .cse21 1)) (.cse28 (+ .cse49 .cse25)) (.cse42 (+ .cse11 4294967297)) (.cse43 (+ .cse29 4294967294)) (.cse44 (+ .cse30 .cse31))) (and (or (< .cse0 .cse1) (< .cse2 .cse3)) (or (< .cse4 .cse5) (< .cse6 .cse7)) (or (< .cse0 .cse8) (< .cse9 .cse3)) (or (< .cse2 .cse10) (< .cse11 .cse1)) (or (< .cse12 (+ .cse13 .cse14)) (< .cse15 .cse16)) (or (< .cse17 6) (< 4 .cse4)) (or (< .cse11 .cse18) (< .cse7 .cse10)) (or (< .cse19 .cse20) (< .cse21 .cse22)) (or (< .cse23 (+ .cse24 2 .cse25)) (< .cse17 .cse26)) (or (< .cse27 .cse5) (< .cse6 .cse28)) (or (< .cse29 (+ 2 .cse30 .cse31)) (< .cse28 .cse32)) (or (< .cse33 .cse9) (< .cse2 .cse34)) (or (< .cse12 .cse15) (< .cse19 .cse16)) (or (< .cse35 .cse36) .cse37 (< .cse36 (+ .cse14 1)) .cse38 .cse39) (or (< .cse6 .cse4) (< .cse17 .cse5)) (or (< .cse17 4294967302) (< 4294967300 .cse4)) (or (< .cse33 .cse2) (< .cse7 .cse34)) (or (< .cse40 .cse16) (< .cse12 (+ .cse14 .cse41))) (or (< .cse4 .cse42) (< .cse43 .cse7)) (or (< .cse44 .cse10) (< .cse11 (+ .cse45 2 .cse46))) (< .cse47 4294967295) (or (< .cse33 .cse48) (< .cse44 .cse34)) (or (< .cse23 (+ .cse49 2 .cse25)) (< .cse27 .cse26)) (or (< .cse29 .cse18) (< .cse7 .cse32)) (or (< .cse50 (+ .cse51 2 .cse35)) (< .cse52 .cse53)) (or (< .cse4 .cse32) (< .cse29 .cse54)) (or (< .cse19 .cse55) (< .cse56 .cse15)) (or (< .cse15 .cse20) (< .cse21 (+ .cse13 2 .cse14))) (or .cse37 (< .cse14 .cse36) .cse38 (< .cse36 (+ (mod c_thread1Thread1of1ForFork2_~i~0 4294967296) 1)) .cse39) (or (< .cse2 .cse57) (< .cse58 .cse9)) (or (< .cse21 (+ 2 .cse14 .cse41)) (< .cse40 .cse20)) (or (< .cse52 .cse55) (< .cse56 .cse40)) (or (< .cse48 .cse3) (< .cse0 (+ 2 .cse59 .cse60))) (or (< .cse48 .cse57) (< .cse58 .cse52)) (or (< .cse50 .cse8) (< .cse9 .cse53)) (or (< .cse9 .cse57) (< .cse58 .cse19)) (or (< .cse7 .cse42) (< .cse43 .cse2)) (or (< .cse4 .cse26) (< .cse23 .cse54)) (or (< .cse9 .cse55) (< .cse56 .cse19)) (or (< .cse50 .cse22) (< .cse19 .cse53)) (or (< .cse28 .cse42) (< .cse43 .cse44))))) is different from false [2023-11-24 09:15:41,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 09:15:51,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-24 09:15:51,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-11-24 09:15:51,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-11-24 09:15:51,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-24 09:15:51,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 09:15:51,866 INFO L420 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)] === [2023-11-24 09:15:51,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 09:15:51,866 INFO L85 PathProgramCache]: Analyzing trace with hash 531995853, now seen corresponding path program 3 times [2023-11-24 09:15:51,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 09:15:51,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991133150] [2023-11-24 09:15:51,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 09:15:51,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 09:15:51,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 09:15:53,740 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 131 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 09:15:53,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 09:15:53,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991133150] [2023-11-24 09:15:53,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991133150] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 09:15:53,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840261692] [2023-11-24 09:15:53,741 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-24 09:15:53,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 09:15:53,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-24 09:15:53,743 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) [2023-11-24 09:15:53,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-24 09:15:54,250 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2023-11-24 09:15:54,251 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 09:15:54,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 65 conjunts are in the unsatisfiable core [2023-11-24 09:15:54,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 09:15:55,913 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 131 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 09:15:55,913 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 09:16:13,750 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 131 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 09:16:13,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840261692] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 09:16:13,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 09:16:13,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 75 [2023-11-24 09:16:13,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141782998] [2023-11-24 09:16:13,751 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 09:16:13,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2023-11-24 09:16:13,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 09:16:13,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2023-11-24 09:16:13,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=885, Invalid=4665, Unknown=0, NotChecked=0, Total=5550 [2023-11-24 09:16:13,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 09:16:13,755 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 09:16:13,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 1.32) internal successors, (99), 75 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 09:16:13,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2023-11-24 09:16:13,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2023-11-24 09:16:13,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2023-11-24 09:16:13,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 09:18:03,737 WARN L293 SmtUtils]: Spent 1.18m on a formula simplification. DAG size of input: 268 DAG size of output: 188 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-24 09:18:07,144 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse42 (mod (+ c_thread1Thread1of1ForFork2_~i~0 3) 4294967296))) (let ((.cse69 (+ (mod c_thread1Thread1of1ForFork2_~i~0 4294967296) 1)) (.cse68 (+ 1 .cse42)) (.cse66 (mod (+ c_thread2Thread1of1ForFork0_~i~1 9) 4294967296)) (.cse1 (mod (+ c_thread1Thread1of1ForFork2_~i~0 9) 4294967296)) (.cse74 (mod (+ c_thread2Thread1of1ForFork0_~i~1 10) 4294967296)) (.cse0 (mod (+ c_thread1Thread1of1ForFork2_~i~0 10) 4294967296)) (.cse73 (mod c_thread3Thread1of1ForFork1_~i~2 4294967296)) (.cse57 (mod (+ c_thread2Thread1of1ForFork0_~i~1 3) 4294967296)) (.cse58 (mod c_~b~0 4294967296)) (.cse72 (mod (+ c_thread1Thread1of1ForFork2_~i~0 8) 4294967296)) (.cse71 (mod (+ c_thread2Thread1of1ForFork0_~i~1 8) 4294967296)) (.cse60 (mod (+ 6 c_thread3Thread1of1ForFork1_~i~2) 4294967296)) (.cse50 (mod (+ c_thread1Thread1of1ForFork2_~i~0 6) 4294967296)) (.cse75 (+ (mod (+ c_thread1Thread1of1ForFork2_~i~0 2) 4294967296) 1)) (.cse67 (mod c_~a~0 4294967296)) (.cse2 (mod (+ 5 c_thread3Thread1of1ForFork1_~i~2) 4294967296)) (.cse49 (mod (+ c_thread3Thread1of1ForFork1_~i~2 4) 4294967296)) (.cse70 (mod (+ 7 c_thread1Thread1of1ForFork2_~i~0) 4294967296)) (.cse51 (mod (+ 7 c_thread2Thread1of1ForFork0_~i~1) 4294967296)) (.cse43 (mod (+ c_thread2Thread1of1ForFork0_~i~1 5) 4294967296)) (.cse13 (mod (+ 2 c_thread3Thread1of1ForFork1_~i~2) 4294967296)) (.cse64 (mod (+ c_thread2Thread1of1ForFork0_~i~1 6) 4294967296)) (.cse65 (mod (+ 5 c_thread1Thread1of1ForFork2_~i~0) 4294967296)) (.cse54 (mod (+ 3 c_thread3Thread1of1ForFork1_~i~2) 4294967296)) (.cse10 (mod (+ c_thread3Thread1of1ForFork1_~i~2 1) 4294967296)) (.cse41 (mod (+ c_thread2Thread1of1ForFork0_~i~1 4) 4294967296)) (.cse44 (mod (+ c_thread1Thread1of1ForFork2_~i~0 4) 4294967296))) (let ((.cse11 (+ .cse41 2 .cse44)) (.cse16 (+ .cse10 1)) (.cse37 (+ .cse54 4294967294)) (.cse21 (+ .cse64 .cse65)) (.cse35 (+ .cse13 4294967297)) (.cse14 (+ 2 .cse65 .cse43)) (.cse3 (+ .cse70 2 .cse51)) (.cse18 (+ .cse49 4294967297)) (.cse19 (+ .cse2 4294967294)) (.cse27 (< .cse42 .cse67)) (.cse28 (< .cse67 .cse75)) (.cse15 (+ .cse50 .cse64)) (.cse22 (+ 4294967297 .cse10)) (.cse23 (+ .cse13 4294967294)) (.cse32 (+ 4294967294 .cse60)) (.cse31 (+ .cse2 4294967297)) (.cse12 (< .cse50 .cse75)) (.cse55 (+ .cse13 1)) (.cse61 (+ 2 .cse72 .cse71)) (.cse25 (< .cse41 .cse58)) (.cse26 (< .cse58 (+ .cse57 1))) (.cse29 (< .cse73 (mod (+ c_~b~0 c_~a~0) 4294967296))) (.cse4 (+ .cse72 .cse71)) (.cse59 (< .cse0 (+ .cse50 1))) (.cse45 (+ .cse74 .cse0)) (.cse30 (+ .cse66 .cse1)) (.cse17 (+ .cse66 .cse72)) (.cse5 (+ .cse49 1)) (.cse6 (< .cse72 (+ .cse44 1))) (.cse47 (+ .cse49 4294967294)) (.cse52 (+ .cse50 .cse51)) (.cse20 (+ .cse70 .cse71)) (.cse46 (+ .cse54 4294967297)) (.cse36 (< .cse70 .cse68)) (.cse34 (+ .cse70 .cse51)) (.cse48 (+ .cse54 1)) (.cse63 (+ .cse50 2 .cse64)) (.cse56 (+ .cse74 .cse1)) (.cse62 (+ .cse2 1)) (.cse33 (< .cse1 (+ .cse65 1))) (.cse7 (< .cse65 (+ (mod (+ c_thread1Thread1of1ForFork2_~i~0 1) 4294967296) 1))) (.cse40 (+ 4294967294 .cse10)) (.cse53 (+ .cse41 .cse44)) (.cse8 (+ .cse65 .cse43)) (.cse39 (+ 4294967297 .cse73)) (.cse38 (< .cse44 .cse69)) (.cse24 (+ .cse43 .cse44)) (.cse9 (+ .cse73 1))) (and (or (< .cse0 4294967292) (< 4294967291 .cse1)) (or (< .cse2 .cse3) (< .cse4 .cse5) .cse6) (or .cse7 (< .cse8 .cse9) (< .cse10 .cse11)) (or .cse12 (< .cse13 .cse14) (< .cse15 .cse16)) (or (< .cse17 .cse18) (< .cse19 .cse20) .cse6) (or .cse7 (< .cse21 .cse22) (< .cse23 .cse24)) (or .cse25 .cse26 .cse27 .cse28 .cse29) (or (< .cse30 .cse31) (< .cse32 .cse4) .cse33) (or (< .cse34 .cse35) .cse36 (< .cse37 .cse15)) (or .cse38 (< .cse24 .cse39) (< .cse40 (+ .cse41 .cse42))) (or .cse33 (< .cse19 .cse4) (< .cse30 .cse18)) (or .cse7 (< .cse21 .cse16) (< .cse13 (+ 2 .cse43 .cse44))) (or (< .cse37 .cse8) .cse12 (< .cse15 .cse35)) (or (< .cse13 .cse11) .cse7 (< .cse8 .cse16)) (or (< .cse45 4294967302) (< 4294967300 .cse30)) (or (< .cse34 .cse46) .cse36 (< .cse47 .cse15)) (or (< .cse20 .cse48) (< .cse49 (+ .cse50 2 .cse51)) .cse36) (or (< .cse37 .cse21) (< .cse52 .cse35) .cse12) (or .cse7 (< .cse8 .cse22) (< .cse23 .cse53)) (or .cse12 (< .cse54 .cse14) (< .cse15 .cse55)) (or (< .cse32 .cse17) .cse33 (< .cse56 .cse31)) (or .cse38 (< .cse53 .cse39) (< .cse40 (+ .cse57 .cse42))) (or (< .cse4 .cse48) (< .cse49 .cse3) .cse6) (or (< .cse4 .cse18) (< .cse19 .cse34) .cse6) (or (< .cse58 (+ (mod (+ c_thread2Thread1of1ForFork0_~i~1 2) 4294967296) 1)) .cse27 .cse28 .cse29 (< .cse57 .cse58)) (or (< .cse15 .cse22) (< .cse23 .cse8) .cse12) (or .cse59 (< .cse32 .cse30) (< .cse45 .cse31)) (or (< .cse60 .cse61) .cse33 (< .cse30 .cse62)) (or (< .cse54 .cse63) (< .cse34 .cse55) .cse36) (or (< .cse54 (+ 2 .cse64 .cse65)) .cse12 (< .cse52 .cse55)) (or (< .cse30 .cse5) (< .cse2 .cse61) .cse33) (or (< .cse60 (+ .cse66 2 .cse1)) .cse59 (< .cse45 .cse62)) (or .cse25 .cse26 (< .cse67 .cse68) (< .cse67 .cse69) (< .cse44 .cse67) .cse29) (or (< .cse47 .cse34) (< .cse4 .cse46) .cse6) (or .cse59 (< .cse45 6) (< 4 .cse30)) (or (< .cse17 .cse5) (< .cse2 (+ .cse70 2 .cse71)) .cse6) (or (< .cse47 .cse52) .cse36 (< .cse20 .cse46)) (or .cse38 (< .cse53 .cse9) (< .cse10 (+ 2 .cse57 .cse42))) (or .cse36 (< .cse34 .cse48) (< .cse49 .cse63)) (or (< .cse56 .cse62) .cse33 (< .cse60 (+ .cse66 2 .cse72))) (or .cse7 (< .cse40 .cse53) (< .cse8 .cse39)) (or .cse38 (< .cse10 (+ .cse41 2 .cse42)) (< .cse24 .cse9)))))) is different from false [2023-11-24 09:18:24,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 09:18:33,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-24 09:18:33,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-11-24 09:18:33,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-11-24 09:18:33,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2023-11-24 09:18:33,477 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-24 09:18:33,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 09:18:33,672 INFO L420 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)] === [2023-11-24 09:18:33,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 09:18:33,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1389552191, now seen corresponding path program 4 times [2023-11-24 09:18:33,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 09:18:33,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256005447] [2023-11-24 09:18:33,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 09:18:33,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 09:18:33,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 09:18:36,645 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 09:18:36,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 09:18:36,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256005447] [2023-11-24 09:18:36,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256005447] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 09:18:36,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480963052] [2023-11-24 09:18:36,646 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-24 09:18:36,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 09:18:36,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-24 09:18:36,648 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) [2023-11-24 09:18:36,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-24 09:18:36,827 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-24 09:18:36,828 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 09:18:36,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 80 conjunts are in the unsatisfiable core [2023-11-24 09:18:36,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 09:18:41,920 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 09:18:41,921 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 09:18:50,407 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 09:18:50,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480963052] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 09:18:50,408 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 09:18:50,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41, 41] total 109 [2023-11-24 09:18:50,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332238786] [2023-11-24 09:18:50,408 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 09:18:50,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 109 states [2023-11-24 09:18:50,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 09:18:50,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2023-11-24 09:18:50,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1211, Invalid=10561, Unknown=0, NotChecked=0, Total=11772 [2023-11-24 09:18:50,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 09:18:50,413 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 09:18:50,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 109 states, 109 states have (on average 1.2201834862385321) internal successors, (133), 109 states have internal predecessors, (133), 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) [2023-11-24 09:18:50,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2023-11-24 09:18:50,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2023-11-24 09:18:50,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2023-11-24 09:18:50,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2023-11-24 09:18:50,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 09:20:01,192 WARN L293 SmtUtils]: Spent 46.32s on a formula simplification. DAG size of input: 156 DAG size of output: 113 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-24 09:21:52,307 WARN L293 SmtUtils]: Spent 1.49m on a formula simplification. DAG size of input: 175 DAG size of output: 138 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Killed by 15