/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier-loop.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a865e3bea3ade1065a4c95009cfa501fe03c5538-a865e3b [2021-02-19 17:55:15,936 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 17:55:15,939 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 17:55:15,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-19 17:55:15,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-19 17:55:15,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-19 17:55:15,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-19 17:55:15,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-19 17:55:15,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-19 17:55:15,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-19 17:55:15,977 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-19 17:55:15,977 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-19 17:55:15,978 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 17:55:15,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 17:55:15,979 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 17:55:15,980 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 17:55:15,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 17:55:15,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 17:55:15,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 17:55:15,985 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 17:55:15,986 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 17:55:15,987 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 17:55:15,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 17:55:15,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 17:55:15,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-19 17:55:15,991 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-19 17:55:15,991 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-19 17:55:15,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-19 17:55:15,992 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-19 17:55:15,993 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-19 17:55:15,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-19 17:55:15,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-19 17:55:15,994 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-19 17:55:15,995 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-19 17:55:15,996 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-19 17:55:15,996 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-19 17:55:15,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-19 17:55:15,997 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-19 17:55:15,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-19 17:55:15,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-19 17:55:15,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-19 17:55:15,999 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-02-19 17:55:16,014 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 17:55:16,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 17:55:16,015 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-02-19 17:55:16,015 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-02-19 17:55:16,016 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 17:55:16,016 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 17:55:16,016 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 17:55:16,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 17:55:16,017 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 17:55:16,017 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 17:55:16,017 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 17:55:16,017 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 17:55:16,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 17:55:16,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 17:55:16,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 17:55:16,018 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 17:55:16,018 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 17:55:16,018 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 17:55:16,018 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 17:55:16,018 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 17:55:16,018 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 17:55:16,018 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-19 17:55:16,018 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 17:55:16,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 17:55:16,019 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 17:55:16,019 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 17:55:16,019 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 17:55:16,019 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 17:55:16,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 17:55:16,019 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-02-19 17:55:16,019 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 17:55:16,019 INFO L138 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/UAutomizer-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 17:55:16,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 17:55:16,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 17:55:16,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 17:55:16,351 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-02-19 17:55:16,353 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-02-19 17:55:16,353 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier-loop.wvr.bpl [2021-02-19 17:55:16,354 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier-loop.wvr.bpl' [2021-02-19 17:55:16,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 17:55:16,382 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 17:55:16,383 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-02-19 17:55:16,383 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-02-19 17:55:16,383 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-02-19 17:55:16,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 05:55:16" (1/1) ... [2021-02-19 17:55:16,401 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 05:55:16" (1/1) ... [2021-02-19 17:55:16,408 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-02-19 17:55:16,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 17:55:16,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 17:55:16,410 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 17:55:16,416 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 05:55:16" (1/1) ... [2021-02-19 17:55:16,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 05:55:16" (1/1) ... [2021-02-19 17:55:16,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 05:55:16" (1/1) ... [2021-02-19 17:55:16,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 05:55:16" (1/1) ... [2021-02-19 17:55:16,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 05:55:16" (1/1) ... [2021-02-19 17:55:16,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 05:55:16" (1/1) ... [2021-02-19 17:55:16,432 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 05:55:16" (1/1) ... [2021-02-19 17:55:16,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 17:55:16,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 17:55:16,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 17:55:16,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 17:55:16,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 05:55:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 17:55:16,507 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-02-19 17:55:16,508 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-02-19 17:55:16,508 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-02-19 17:55:16,508 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-02-19 17:55:16,509 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-02-19 17:55:16,509 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-02-19 17:55:16,509 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-02-19 17:55:16,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 17:55:16,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 17:55:16,509 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-02-19 17:55:16,509 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-02-19 17:55:16,510 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-02-19 17:55:16,512 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-02-19 17:55:16,512 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-02-19 17:55:16,512 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-02-19 17:55:16,512 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2021-02-19 17:55:16,512 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-02-19 17:55:16,513 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-02-19 17:55:16,513 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2021-02-19 17:55:16,514 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2021-02-19 17:55:16,514 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2021-02-19 17:55:16,515 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-02-19 17:55:16,755 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 17:55:16,755 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-02-19 17:55:16,771 INFO L202 PluginConnector]: Adding new model barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:55:16 BoogieIcfgContainer [2021-02-19 17:55:16,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 17:55:16,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 17:55:16,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 17:55:16,774 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 17:55:16,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 05:55:16" (1/2) ... [2021-02-19 17:55:16,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43354260 and model type barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:55:16, skipping insertion in model container [2021-02-19 17:55:16,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:55:16" (2/2) ... [2021-02-19 17:55:16,775 INFO L111 eAbstractionObserver]: Analyzing ICFG barrier-loop.wvr.bpl [2021-02-19 17:55:16,792 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-02-19 17:55:16,793 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 17:55:16,795 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 17:55:16,795 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-02-19 17:55:16,873 INFO L149 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2021-02-19 17:55:16,883 INFO L253 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-02-19 17:55:16,893 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 17:55:16,894 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 17:55:16,894 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 17:55:16,894 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 17:55:16,894 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 17:55:16,894 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 17:55:16,894 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 17:55:16,894 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 17:55:16,900 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 84 places, 73 transitions, 218 flow [2021-02-19 17:55:17,583 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 10822 states, 10820 states have (on average 4.095101663585952) internal successors, (44309), 10821 states have internal predecessors, (44309), 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) [2021-02-19 17:55:17,618 INFO L276 IsEmpty]: Start isEmpty. Operand has 10822 states, 10820 states have (on average 4.095101663585952) internal successors, (44309), 10821 states have internal predecessors, (44309), 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) [2021-02-19 17:55:17,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-02-19 17:55:17,700 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 17:55:17,701 INFO L506 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:55:17,701 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thread4Thread1of1ForFork3Err7INUSE_VIOLATION, thread1Err9INUSE_VIOLATION, thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork3Err8INUSE_VIOLATION, thread4Err4INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, thread1Err0INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 17:55:17,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:55:17,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1776835473, now seen corresponding path program 1 times [2021-02-19 17:55:17,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:55:17,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76113943] [2021-02-19 17:55:17,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:55:17,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:55:17,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:55:17,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76113943] [2021-02-19 17:55:17,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:55:17,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-02-19 17:55:17,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232346006] [2021-02-19 17:55:17,849 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 17:55:17,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:55:17,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 17:55:17,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 17:55:17,882 INFO L87 Difference]: Start difference. First operand has 10822 states, 10820 states have (on average 4.095101663585952) internal successors, (44309), 10821 states have internal predecessors, (44309), 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) Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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) [2021-02-19 17:55:18,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:55:18,048 INFO L93 Difference]: Finished difference Result 11214 states and 45854 transitions. [2021-02-19 17:55:18,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 17:55:18,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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) Word has length 23 [2021-02-19 17:55:18,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:55:18,143 INFO L225 Difference]: With dead ends: 11214 [2021-02-19 17:55:18,143 INFO L226 Difference]: Without dead ends: 11193 [2021-02-19 17:55:18,144 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 17:55:18,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11193 states. [2021-02-19 17:55:18,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11193 to 10962. [2021-02-19 17:55:18,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10962 states, 10961 states have (on average 4.090958854119149) internal successors, (44841), 10961 states have internal predecessors, (44841), 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) [2021-02-19 17:55:18,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10962 states to 10962 states and 44841 transitions. [2021-02-19 17:55:18,984 INFO L78 Accepts]: Start accepts. Automaton has 10962 states and 44841 transitions. Word has length 23 [2021-02-19 17:55:18,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:55:18,985 INFO L480 AbstractCegarLoop]: Abstraction has 10962 states and 44841 transitions. [2021-02-19 17:55:18,986 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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) [2021-02-19 17:55:18,986 INFO L276 IsEmpty]: Start isEmpty. Operand 10962 states and 44841 transitions. [2021-02-19 17:55:19,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-02-19 17:55:19,027 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 17:55:19,027 INFO L506 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:55:19,027 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 17:55:19,028 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thread4Thread1of1ForFork3Err7INUSE_VIOLATION, thread1Err9INUSE_VIOLATION, thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork3Err8INUSE_VIOLATION, thread4Err4INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, thread1Err0INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 17:55:19,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:55:19,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1127191528, now seen corresponding path program 1 times [2021-02-19 17:55:19,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:55:19,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96332572] [2021-02-19 17:55:19,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:55:19,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:55:19,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:55:19,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96332572] [2021-02-19 17:55:19,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:55:19,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 17:55:19,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562036902] [2021-02-19 17:55:19,051 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 17:55:19,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:55:19,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 17:55:19,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 17:55:19,052 INFO L87 Difference]: Start difference. First operand 10962 states and 44841 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 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) [2021-02-19 17:55:19,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:55:19,164 INFO L93 Difference]: Finished difference Result 13038 states and 52625 transitions. [2021-02-19 17:55:19,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 17:55:19,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 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) Word has length 31 [2021-02-19 17:55:19,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:55:19,231 INFO L225 Difference]: With dead ends: 13038 [2021-02-19 17:55:19,231 INFO L226 Difference]: Without dead ends: 12721 [2021-02-19 17:55:19,231 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 17:55:19,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12721 states. [2021-02-19 17:55:19,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12721 to 11889. [2021-02-19 17:55:19,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11889 states, 11888 states have (on average 4.034909152086137) internal successors, (47967), 11888 states have internal predecessors, (47967), 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) [2021-02-19 17:55:19,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11889 states to 11889 states and 47967 transitions. [2021-02-19 17:55:19,811 INFO L78 Accepts]: Start accepts. Automaton has 11889 states and 47967 transitions. Word has length 31 [2021-02-19 17:55:19,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:55:19,811 INFO L480 AbstractCegarLoop]: Abstraction has 11889 states and 47967 transitions. [2021-02-19 17:55:19,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 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) [2021-02-19 17:55:19,812 INFO L276 IsEmpty]: Start isEmpty. Operand 11889 states and 47967 transitions. [2021-02-19 17:55:19,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-02-19 17:55:19,839 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 17:55:19,839 INFO L506 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:55:19,839 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-19 17:55:19,839 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thread4Thread1of1ForFork3Err7INUSE_VIOLATION, thread1Err9INUSE_VIOLATION, thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork3Err8INUSE_VIOLATION, thread4Err4INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, thread1Err0INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 17:55:19,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:55:19,926 INFO L82 PathProgramCache]: Analyzing trace with hash -532176582, now seen corresponding path program 1 times [2021-02-19 17:55:19,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:55:19,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476674278] [2021-02-19 17:55:19,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:55:19,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:55:19,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:55:19,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476674278] [2021-02-19 17:55:19,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:55:19,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 17:55:19,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318495032] [2021-02-19 17:55:19,955 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 17:55:19,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:55:19,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 17:55:19,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 17:55:19,956 INFO L87 Difference]: Start difference. First operand 11889 states and 47967 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 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) [2021-02-19 17:55:20,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:55:20,031 INFO L93 Difference]: Finished difference Result 11681 states and 45149 transitions. [2021-02-19 17:55:20,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 17:55:20,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 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) Word has length 31 [2021-02-19 17:55:20,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:55:20,065 INFO L225 Difference]: With dead ends: 11681 [2021-02-19 17:55:20,065 INFO L226 Difference]: Without dead ends: 9378 [2021-02-19 17:55:20,065 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 17:55:20,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9378 states. [2021-02-19 17:55:20,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9378 to 9378. [2021-02-19 17:55:20,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9378 states, 9377 states have (on average 3.84099392129679) internal successors, (36017), 9377 states have internal predecessors, (36017), 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) [2021-02-19 17:55:20,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9378 states to 9378 states and 36017 transitions. [2021-02-19 17:55:20,535 INFO L78 Accepts]: Start accepts. Automaton has 9378 states and 36017 transitions. Word has length 31 [2021-02-19 17:55:20,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:55:20,536 INFO L480 AbstractCegarLoop]: Abstraction has 9378 states and 36017 transitions. [2021-02-19 17:55:20,536 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 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) [2021-02-19 17:55:20,536 INFO L276 IsEmpty]: Start isEmpty. Operand 9378 states and 36017 transitions. [2021-02-19 17:55:20,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-02-19 17:55:20,561 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 17:55:20,561 INFO L506 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:55:20,561 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-19 17:55:20,561 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thread4Thread1of1ForFork3Err7INUSE_VIOLATION, thread1Err9INUSE_VIOLATION, thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork3Err8INUSE_VIOLATION, thread4Err4INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, thread1Err0INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 17:55:20,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:55:20,563 INFO L82 PathProgramCache]: Analyzing trace with hash 1110036598, now seen corresponding path program 1 times [2021-02-19 17:55:20,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:55:20,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662367119] [2021-02-19 17:55:20,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:55:20,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:55:20,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:55:20,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662367119] [2021-02-19 17:55:20,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:55:20,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 17:55:20,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038291904] [2021-02-19 17:55:20,610 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 17:55:20,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:55:20,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 17:55:20,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 17:55:20,613 INFO L87 Difference]: Start difference. First operand 9378 states and 36017 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 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) [2021-02-19 17:55:20,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:55:20,758 INFO L93 Difference]: Finished difference Result 11158 states and 41887 transitions. [2021-02-19 17:55:20,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 17:55:20,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 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) Word has length 31 [2021-02-19 17:55:20,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:55:20,794 INFO L225 Difference]: With dead ends: 11158 [2021-02-19 17:55:20,794 INFO L226 Difference]: Without dead ends: 10600 [2021-02-19 17:55:20,795 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 17:55:20,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10600 states. [2021-02-19 17:55:21,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10600 to 10244. [2021-02-19 17:55:21,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10244 states, 10243 states have (on average 3.7574929219955093) internal successors, (38488), 10243 states have internal predecessors, (38488), 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) [2021-02-19 17:55:21,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10244 states to 10244 states and 38488 transitions. [2021-02-19 17:55:21,151 INFO L78 Accepts]: Start accepts. Automaton has 10244 states and 38488 transitions. Word has length 31 [2021-02-19 17:55:21,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:55:21,151 INFO L480 AbstractCegarLoop]: Abstraction has 10244 states and 38488 transitions. [2021-02-19 17:55:21,151 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 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) [2021-02-19 17:55:21,151 INFO L276 IsEmpty]: Start isEmpty. Operand 10244 states and 38488 transitions. [2021-02-19 17:55:21,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-02-19 17:55:21,170 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 17:55:21,170 INFO L506 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:55:21,170 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-19 17:55:21,170 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thread4Thread1of1ForFork3Err7INUSE_VIOLATION, thread1Err9INUSE_VIOLATION, thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork3Err8INUSE_VIOLATION, thread4Err4INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, thread1Err0INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 17:55:21,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:55:21,171 INFO L82 PathProgramCache]: Analyzing trace with hash 317710988, now seen corresponding path program 1 times [2021-02-19 17:55:21,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:55:21,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939436561] [2021-02-19 17:55:21,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:55:21,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:55:21,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:55:21,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939436561] [2021-02-19 17:55:21,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:55:21,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 17:55:21,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816271599] [2021-02-19 17:55:21,191 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 17:55:21,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:55:21,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 17:55:21,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 17:55:21,192 INFO L87 Difference]: Start difference. First operand 10244 states and 38488 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 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) [2021-02-19 17:55:21,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:55:21,251 INFO L93 Difference]: Finished difference Result 9700 states and 34735 transitions. [2021-02-19 17:55:21,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 17:55:21,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 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) Word has length 31 [2021-02-19 17:55:21,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:55:21,278 INFO L225 Difference]: With dead ends: 9700 [2021-02-19 17:55:21,278 INFO L226 Difference]: Without dead ends: 8001 [2021-02-19 17:55:21,279 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 17:55:21,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8001 states. [2021-02-19 17:55:21,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8001 to 8001. [2021-02-19 17:55:21,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8001 states, 8000 states have (on average 3.590375) internal successors, (28723), 8000 states have internal predecessors, (28723), 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) [2021-02-19 17:55:21,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8001 states to 8001 states and 28723 transitions. [2021-02-19 17:55:21,603 INFO L78 Accepts]: Start accepts. Automaton has 8001 states and 28723 transitions. Word has length 31 [2021-02-19 17:55:21,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:55:21,604 INFO L480 AbstractCegarLoop]: Abstraction has 8001 states and 28723 transitions. [2021-02-19 17:55:21,604 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 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) [2021-02-19 17:55:21,604 INFO L276 IsEmpty]: Start isEmpty. Operand 8001 states and 28723 transitions. [2021-02-19 17:55:21,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-02-19 17:55:21,620 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 17:55:21,620 INFO L506 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:55:21,620 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-19 17:55:21,620 INFO L428 AbstractCegarLoop]: === Iteration 6 === [thread4Thread1of1ForFork3Err7INUSE_VIOLATION, thread1Err9INUSE_VIOLATION, thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork3Err8INUSE_VIOLATION, thread4Err4INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, thread1Err0INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 17:55:21,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:55:21,621 INFO L82 PathProgramCache]: Analyzing trace with hash 185521801, now seen corresponding path program 1 times [2021-02-19 17:55:21,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:55:21,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633931874] [2021-02-19 17:55:21,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:55:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:55:21,656 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:55:21,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633931874] [2021-02-19 17:55:21,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:55:21,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 17:55:21,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60076496] [2021-02-19 17:55:21,659 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 17:55:21,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:55:21,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 17:55:21,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 17:55:21,661 INFO L87 Difference]: Start difference. First operand 8001 states and 28723 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2021-02-19 17:55:21,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:55:21,704 INFO L93 Difference]: Finished difference Result 6666 states and 23386 transitions. [2021-02-19 17:55:21,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 17:55:21,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) Word has length 39 [2021-02-19 17:55:21,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:55:21,728 INFO L225 Difference]: With dead ends: 6666 [2021-02-19 17:55:21,729 INFO L226 Difference]: Without dead ends: 6666 [2021-02-19 17:55:21,729 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 17:55:21,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6666 states. [2021-02-19 17:55:21,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6666 to 6666. [2021-02-19 17:55:21,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6666 states, 6665 states have (on average 3.508777194298575) internal successors, (23386), 6665 states have internal predecessors, (23386), 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) [2021-02-19 17:55:21,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6666 states to 6666 states and 23386 transitions. [2021-02-19 17:55:21,973 INFO L78 Accepts]: Start accepts. Automaton has 6666 states and 23386 transitions. Word has length 39 [2021-02-19 17:55:21,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:55:21,973 INFO L480 AbstractCegarLoop]: Abstraction has 6666 states and 23386 transitions. [2021-02-19 17:55:21,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2021-02-19 17:55:21,974 INFO L276 IsEmpty]: Start isEmpty. Operand 6666 states and 23386 transitions. [2021-02-19 17:55:21,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-02-19 17:55:21,987 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 17:55:21,987 INFO L506 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:55:21,987 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-19 17:55:21,987 INFO L428 AbstractCegarLoop]: === Iteration 7 === [thread4Thread1of1ForFork3Err7INUSE_VIOLATION, thread1Err9INUSE_VIOLATION, thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork3Err8INUSE_VIOLATION, thread4Err4INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, thread1Err0INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 17:55:21,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:55:21,991 INFO L82 PathProgramCache]: Analyzing trace with hash 257565825, now seen corresponding path program 2 times [2021-02-19 17:55:21,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:55:21,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324757207] [2021-02-19 17:55:21,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:55:22,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 17:55:22,019 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 17:55:22,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 17:55:22,025 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 17:55:22,050 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-19 17:55:22,050 INFO L607 BasicCegarLoop]: Counterexample might be feasible [2021-02-19 17:55:22,050 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-19 17:55:22,146 INFO L202 PluginConnector]: Adding new model barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 05:55:22 BasicIcfg [2021-02-19 17:55:22,146 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 17:55:22,147 INFO L168 Benchmark]: Toolchain (without parser) took 5767.69 ms. Allocated memory was 255.9 MB in the beginning and 7.1 GB in the end (delta: 6.8 GB). Free memory was 236.6 MB in the beginning and 6.8 GB in the end (delta: -6.5 GB). Peak memory consumption was 928.7 MB. Max. memory is 16.0 GB. [2021-02-19 17:55:22,147 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-02-19 17:55:22,147 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.80 ms. Allocated memory is still 255.9 MB. Free memory was 236.1 MB in the beginning and 234.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-02-19 17:55:22,148 INFO L168 Benchmark]: Boogie Preprocessor took 27.40 ms. Allocated memory is still 255.9 MB. Free memory was 234.6 MB in the beginning and 233.6 MB in the end (delta: 976.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-02-19 17:55:22,148 INFO L168 Benchmark]: RCFGBuilder took 333.23 ms. Allocated memory is still 255.9 MB. Free memory was 233.6 MB in the beginning and 232.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.0 GB. [2021-02-19 17:55:22,148 INFO L168 Benchmark]: TraceAbstraction took 5374.09 ms. Allocated memory was 255.9 MB in the beginning and 7.1 GB in the end (delta: 6.8 GB). Free memory was 231.8 MB in the beginning and 6.8 GB in the end (delta: -6.5 GB). Peak memory consumption was 923.5 MB. Max. memory is 16.0 GB. [2021-02-19 17:55:22,150 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 25.80 ms. Allocated memory is still 255.9 MB. Free memory was 236.1 MB in the beginning and 234.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 27.40 ms. Allocated memory is still 255.9 MB. Free memory was 234.6 MB in the beginning and 233.6 MB in the end (delta: 976.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 333.23 ms. Allocated memory is still 255.9 MB. Free memory was 233.6 MB in the beginning and 232.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5374.09 ms. Allocated memory was 255.9 MB in the beginning and 7.1 GB in the end (delta: 6.8 GB). Free memory was 231.8 MB in the beginning and 6.8 GB in the end (delta: -6.5 GB). Peak memory consumption was 923.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 120]: assertion can be violated assertion can be violated We found a FailurePath: [L114] 0 assume x_0 == x_8 && y_1 == y_9; VAL [x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L115] FORK 0 fork 1 thread1(); VAL [x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L59] 1 f1_2 := false; [L60] 1 f2_3 := false; VAL [f1_2=false, f2_3=false, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L116] FORK 0 fork 4, 4, 4, 4 thread4(); VAL [f1_2=false, f2_3=false, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L102] 2 f1_10 := false; [L103] 2 f2_11 := false; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L105] FORK 2 fork 5, 5, 5, 5, 5 thread5(); VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L72] 3 temp_12 := x_8; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L73] 3 x_8 := temp_12 + 1; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, x_0=-1, x_8=0, y_1=-1, y_9=-1] [L74] 3 f1_10 := true; VAL [f1_10=true, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, x_0=-1, x_8=0, y_1=-1, y_9=-1] [L106] FORK 2 fork 6, 6, 6, 6, 6, 6 thread6(); VAL [f1_10=true, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, x_0=-1, x_8=0, y_1=-1, y_9=-1] [L87] 4 temp_14 := y_9; VAL [f1_10=true, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_14=-1, x_0=-1, x_8=0, y_1=-1, y_9=-1] [L88] 4 y_9 := temp_14 + 1; VAL [f1_10=true, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_14=-1, x_0=-1, x_8=0, y_1=-1, y_9=0] [L89] 4 f2_11 := true; VAL [f1_10=true, f1_2=false, f2_11=true, f2_3=false, temp_12=-1, temp_14=-1, x_0=-1, x_8=0, y_1=-1, y_9=0] [L75] 3 assume f2_11; VAL [f1_10=true, f1_2=false, f2_11=true, f2_3=false, temp_12=-1, temp_14=-1, x_0=-1, x_8=0, y_1=-1, y_9=0] [L76] 3 temp_13 := y_9; VAL [f1_10=true, f1_2=false, f2_11=true, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, x_0=-1, x_8=0, y_1=-1, y_9=0] [L77] 3 y_9 := temp_13 + 1; VAL [f1_10=true, f1_2=false, f2_11=true, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, x_0=-1, x_8=0, y_1=-1, y_9=1] [L90] 4 assume f1_10; VAL [f1_10=true, f1_2=false, f2_11=true, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, x_0=-1, x_8=0, y_1=-1, y_9=1] [L78] 3 f1_10 := false; VAL [f1_10=false, f1_2=false, f2_11=true, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, x_0=-1, x_8=0, y_1=-1, y_9=1] [L91] 4 temp_15 := x_8; VAL [f1_10=false, f1_2=false, f2_11=true, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, x_0=-1, x_8=0, y_1=-1, y_9=1] [L62] FORK 1 fork 2, 2 thread2(); VAL [f1_10=false, f1_2=false, f2_11=true, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, x_0=-1, x_8=0, y_1=-1, y_9=1] [L63] FORK 1 fork 3, 3, 3 thread3(); VAL [f1_10=false, f1_2=false, f2_11=true, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, x_0=-1, x_8=0, y_1=-1, y_9=1] [L64] JOIN 5 join 2, 2; VAL [f1_10=false, f1_2=false, f2_11=true, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, x_0=-1, x_8=0, y_1=-1, y_9=1] [L65] JOIN 6 join 3, 3, 3; VAL [f1_10=false, f1_2=false, f2_11=true, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, x_0=-1, x_8=0, y_1=-1, y_9=1] [L117] JOIN 1 join 1; VAL [f1_10=false, f1_2=false, f2_11=true, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, x_0=-1, x_8=0, y_1=-1, y_9=1] [L92] 4 x_8 := temp_15 + 1; VAL [f1_10=false, f1_2=false, f2_11=true, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, x_0=-1, x_8=1, y_1=-1, y_9=1] [L93] 4 f2_11 := false; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, x_0=-1, x_8=1, y_1=-1, y_9=1] [L94] 4 assume !f1_10; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, x_0=-1, x_8=1, y_1=-1, y_9=1] [L79] 3 assume !f2_11; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, x_0=-1, x_8=1, y_1=-1, y_9=1] [L107] JOIN 3 join 5, 5, 5, 5, 5; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, x_0=-1, x_8=1, y_1=-1, y_9=1] [L108] JOIN 4 join 6, 6, 6, 6, 6, 6; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, x_0=-1, x_8=1, y_1=-1, y_9=1] [L118] JOIN 2 join 4, 4, 4, 4; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, x_0=-1, x_8=1, y_1=-1, y_9=1] [L119] 0 assume !(x_0 == x_8 && y_1 == y_9); VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, x_0=-1, x_8=1, y_1=-1, y_9=1] [L120] 0 assert false; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_12=-1, temp_13=0, temp_14=-1, temp_15=0, x_0=-1, x_8=1, y_1=-1, y_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.1s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.6s, HoareTripleCheckerStatistics: 515 SDtfs, 208 SDslu, 251 SDs, 0 SdLazy, 37 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11889occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.8s AutomataMinimizationTime, 6 MinimizatonAttempts, 1419 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 225 NumberOfCodeBlocks, 225 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 9560 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...