/usr/bin/java -Xmx8000000000 -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-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc-dec.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-17 10:01:28,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-17 10:01:28,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-17 10:01:28,960 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-17 10:01:28,960 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-17 10:01:28,961 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-17 10:01:28,962 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-17 10:01:28,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-17 10:01:28,964 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-17 10:01:28,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-17 10:01:28,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-17 10:01:28,969 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-17 10:01:28,969 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-17 10:01:28,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-17 10:01:28,971 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-17 10:01:28,971 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-17 10:01:28,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-17 10:01:28,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-17 10:01:28,974 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-17 10:01:28,975 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-17 10:01:28,975 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-17 10:01:28,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-17 10:01:28,977 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-17 10:01:28,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-17 10:01:28,979 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-17 10:01:28,979 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-17 10:01:28,979 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-17 10:01:28,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-17 10:01:28,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-17 10:01:28,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-17 10:01:28,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-17 10:01:28,981 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-17 10:01:28,982 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-17 10:01:28,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-17 10:01:28,983 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-17 10:01:28,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-17 10:01:28,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-17 10:01:28,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-17 10:01:28,984 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-17 10:01:28,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-17 10:01:28,985 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-17 10:01:28,986 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-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf [2021-06-17 10:01:29,017 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-17 10:01:29,017 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-17 10:01:29,018 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-17 10:01:29,018 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-17 10:01:29,018 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-17 10:01:29,019 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-17 10:01:29,019 INFO L138 SettingsManager]: * Use SBE=true [2021-06-17 10:01:29,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-17 10:01:29,019 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-17 10:01:29,019 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-17 10:01:29,019 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-17 10:01:29,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-17 10:01:29,019 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-17 10:01:29,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-17 10:01:29,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-17 10:01:29,021 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-17 10:01:29,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-17 10:01:29,021 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-17 10:01:29,021 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-17 10:01:29,021 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-17 10:01:29,021 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-17 10:01:29,021 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-17 10:01:29,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-17 10:01:29,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-17 10:01:29,022 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-17 10:01:29,022 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-17 10:01:29,045 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-17 10:01:29,045 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-17 10:01:29,045 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-06-17 10:01:29,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-17 10:01:29,045 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-17 10:01:29,046 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-17 10:01:29,046 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-17 10:01:29,046 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-06-17 10:01:29,046 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-17 10:01:29,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-17 10:01:29,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-17 10:01:29,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-17 10:01:29,345 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-17 10:01:29,346 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-17 10:01:29,347 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc-dec.wvr.bpl [2021-06-17 10:01:29,347 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc-dec.wvr.bpl' [2021-06-17 10:01:29,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-17 10:01:29,412 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-17 10:01:29,413 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-17 10:01:29,414 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-17 10:01:29,414 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-17 10:01:29,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 10:01:29" (1/1) ... [2021-06-17 10:01:29,430 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 10:01:29" (1/1) ... [2021-06-17 10:01:29,436 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-17 10:01:29,437 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-17 10:01:29,437 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-17 10:01:29,437 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-17 10:01:29,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 10:01:29" (1/1) ... [2021-06-17 10:01:29,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 10:01:29" (1/1) ... [2021-06-17 10:01:29,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 10:01:29" (1/1) ... [2021-06-17 10:01:29,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 10:01:29" (1/1) ... [2021-06-17 10:01:29,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 10:01:29" (1/1) ... [2021-06-17 10:01:29,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 10:01:29" (1/1) ... [2021-06-17 10:01:29,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 10:01:29" (1/1) ... [2021-06-17 10:01:29,450 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-17 10:01:29,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-17 10:01:29,451 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-17 10:01:29,451 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-17 10:01:29,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 10:01:29" (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 [2021-06-17 10:01:29,518 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-17 10:01:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-17 10:01:29,519 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-17 10:01:29,519 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-17 10:01:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-17 10:01:29,519 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-17 10:01:29,519 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-17 10:01:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-17 10:01:29,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-17 10:01:29,521 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-17 10:01:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-17 10:01:29,521 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-17 10:01:29,521 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-06-17 10:01:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-06-17 10:01:29,521 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-06-17 10:01:29,522 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2021-06-17 10:01:29,522 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-06-17 10:01:29,522 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-06-17 10:01:29,523 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-17 10:01:29,798 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-17 10:01:29,798 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-17 10:01:29,800 INFO L202 PluginConnector]: Adding new model min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 10:01:29 BoogieIcfgContainer [2021-06-17 10:01:29,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-17 10:01:29,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-17 10:01:29,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-17 10:01:29,803 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-17 10:01:29,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 10:01:29" (1/2) ... [2021-06-17 10:01:29,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c98a03 and model type min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.06 10:01:29, skipping insertion in model container [2021-06-17 10:01:29,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-inc-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 10:01:29" (2/2) ... [2021-06-17 10:01:29,805 INFO L111 eAbstractionObserver]: Analyzing ICFG min-max-inc-dec.wvr.bpl [2021-06-17 10:01:29,809 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-17 10:01:29,809 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-17 10:01:29,809 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-17 10:01:29,810 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-17 10:01:29,899 INFO L149 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2021-06-17 10:01:29,915 INFO L255 AbstractCegarLoop]: Starting to check reachability of 6 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-17 10:01:29,972 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-17 10:01:29,973 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-17 10:01:29,973 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-17 10:01:29,973 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-17 10:01:29,973 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-17 10:01:29,973 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-17 10:01:29,973 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-17 10:01:29,973 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-17 10:01:30,302 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-17 10:01:30,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 10:01:30,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1749653224, now seen corresponding path program 1 times [2021-06-17 10:01:30,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 10:01:30,311 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527481655] [2021-06-17 10:01:30,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 10:01:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 10:01:30,611 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 16 proven. 64 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-06-17 10:01:30,611 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 10:01:30,612 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527481655] [2021-06-17 10:01:30,612 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527481655] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:01:30,612 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484029741] [2021-06-17 10:01:30,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:01:30,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 10:01:30,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-17 10:01:30,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 10:01:30,930 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 54 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-06-17 10:01:30,930 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484029741] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:01:30,930 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 10:01:30,930 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5] total 18 [2021-06-17 10:01:30,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825674705] [2021-06-17 10:01:30,970 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-17 10:01:30,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 10:01:30,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-17 10:01:30,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2021-06-17 10:01:30,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:01:30,988 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 10:01:30,990 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.842105263157895) internal successors, (92), 18 states have internal predecessors, (92), 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) [2021-06-17 10:01:30,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:01:31,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 10:01:31,721 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-06-17 10:01:31,721 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-17 10:01:31,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 10:01:31,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1027399570, now seen corresponding path program 2 times [2021-06-17 10:01:31,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 10:01:31,722 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687922815] [2021-06-17 10:01:31,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 10:01:31,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 10:01:31,963 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 138 proven. 105 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-06-17 10:01:31,964 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 10:01:31,964 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687922815] [2021-06-17 10:01:31,964 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687922815] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:01:31,964 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118975212] [2021-06-17 10:01:31,964 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:01:32,044 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 10:01:32,045 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 10:01:32,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 16 conjunts are in the unsatisfiable core [2021-06-17 10:01:32,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 10:01:32,254 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 142 proven. 17 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2021-06-17 10:01:32,255 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118975212] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:01:32,255 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 10:01:32,255 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5] total 15 [2021-06-17 10:01:32,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397634179] [2021-06-17 10:01:32,256 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-17 10:01:32,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 10:01:32,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-17 10:01:32,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2021-06-17 10:01:32,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:01:32,261 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 10:01:32,261 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 6.0625) internal successors, (97), 15 states have internal predecessors, (97), 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) [2021-06-17 10:01:32,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 10:01:32,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:01:32,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 10:01:32,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-17 10:01:33,163 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:01:33,163 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-17 10:01:33,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 10:01:33,164 INFO L82 PathProgramCache]: Analyzing trace with hash -2091120004, now seen corresponding path program 3 times [2021-06-17 10:01:33,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 10:01:33,164 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542422973] [2021-06-17 10:01:33,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 10:01:33,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 10:01:33,264 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 173 proven. 133 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-06-17 10:01:33,264 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 10:01:33,264 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542422973] [2021-06-17 10:01:33,264 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542422973] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:01:33,264 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [949404184] [2021-06-17 10:01:33,265 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:01:33,400 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-06-17 10:01:33,400 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 10:01:33,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-17 10:01:33,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 10:01:33,725 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 184 proven. 91 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-06-17 10:01:33,725 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [949404184] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:01:33,725 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 10:01:33,725 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10] total 17 [2021-06-17 10:01:33,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147147272] [2021-06-17 10:01:33,726 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-17 10:01:33,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 10:01:33,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-17 10:01:33,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2021-06-17 10:01:33,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:01:33,730 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 10:01:33,730 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.666666666666667) internal successors, (102), 17 states have internal predecessors, (102), 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) [2021-06-17 10:01:33,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 10:01:33,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-17 10:01:33,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:01:34,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 10:01:34,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-06-17 10:01:34,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-17 10:01:35,136 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:01:35,137 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-17 10:01:35,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 10:01:35,138 INFO L82 PathProgramCache]: Analyzing trace with hash 208856454, now seen corresponding path program 4 times [2021-06-17 10:01:35,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 10:01:35,138 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434940488] [2021-06-17 10:01:35,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 10:01:35,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 10:01:35,274 INFO L134 CoverageAnalysis]: Checked inductivity of 819 backedges. 78 proven. 601 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2021-06-17 10:01:35,274 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 10:01:35,274 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434940488] [2021-06-17 10:01:35,274 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434940488] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:01:35,275 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858213533] [2021-06-17 10:01:35,275 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:01:35,377 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-17 10:01:35,377 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 10:01:35,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 28 conjunts are in the unsatisfiable core [2021-06-17 10:01:35,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 10:01:35,627 INFO L134 CoverageAnalysis]: Checked inductivity of 819 backedges. 255 proven. 292 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2021-06-17 10:01:35,627 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858213533] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:01:35,627 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 10:01:35,627 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6] total 16 [2021-06-17 10:01:35,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323252245] [2021-06-17 10:01:35,629 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-17 10:01:35,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 10:01:35,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-17 10:01:35,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2021-06-17 10:01:35,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:01:35,629 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 10:01:35,629 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 7.235294117647059) internal successors, (123), 16 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 10:01:35,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 10:01:35,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-06-17 10:01:35,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-06-17 10:01:35,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:01:37,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 10:01:37,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-06-17 10:01:37,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-17 10:01:37,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-06-17 10:01:37,454 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:01:37,455 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-17 10:01:37,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 10:01:37,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1649359512, now seen corresponding path program 5 times [2021-06-17 10:01:37,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 10:01:37,455 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084864547] [2021-06-17 10:01:37,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 10:01:37,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 10:01:37,577 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 99 proven. 278 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2021-06-17 10:01:37,578 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 10:01:37,578 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084864547] [2021-06-17 10:01:37,578 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084864547] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:01:37,578 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875084605] [2021-06-17 10:01:37,578 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:01:38,168 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2021-06-17 10:01:38,168 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 10:01:38,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-17 10:01:38,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 10:01:38,390 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 58 proven. 367 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2021-06-17 10:01:38,391 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875084605] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:01:38,391 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 10:01:38,391 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-06-17 10:01:38,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743901731] [2021-06-17 10:01:38,392 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-17 10:01:38,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 10:01:38,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-17 10:01:38,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-06-17 10:01:38,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:01:38,393 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 10:01:38,393 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 7.230769230769231) internal successors, (94), 12 states have internal predecessors, (94), 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) [2021-06-17 10:01:38,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 10:01:38,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-06-17 10:01:38,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-06-17 10:01:38,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-06-17 10:01:38,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:01:39,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 10:01:39,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-06-17 10:01:39,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-06-17 10:01:39,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-06-17 10:01:39,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 10:01:39,493 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:01:39,493 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-17 10:01:39,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 10:01:39,493 INFO L82 PathProgramCache]: Analyzing trace with hash -227136682, now seen corresponding path program 6 times [2021-06-17 10:01:39,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 10:01:39,493 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778642714] [2021-06-17 10:01:39,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 10:01:39,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 10:01:39,742 INFO L134 CoverageAnalysis]: Checked inductivity of 1227 backedges. 573 proven. 504 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-06-17 10:01:39,743 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 10:01:39,743 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778642714] [2021-06-17 10:01:39,743 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778642714] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:01:39,743 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735769361] [2021-06-17 10:01:39,743 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:01:39,980 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 16 check-sat command(s) [2021-06-17 10:01:39,981 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 10:01:39,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 49 conjunts are in the unsatisfiable core [2021-06-17 10:01:39,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 10:01:40,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1227 backedges. 636 proven. 261 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2021-06-17 10:01:40,445 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735769361] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:01:40,445 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 10:01:40,445 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 10] total 30 [2021-06-17 10:01:40,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540309278] [2021-06-17 10:01:40,445 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-17 10:01:40,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 10:01:40,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-17 10:01:40,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=780, Unknown=0, NotChecked=0, Total=930 [2021-06-17 10:01:40,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:01:40,447 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 10:01:40,447 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 5.064516129032258) internal successors, (157), 30 states have internal predecessors, (157), 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) [2021-06-17 10:01:40,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 10:01:40,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-06-17 10:01:40,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-06-17 10:01:40,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2021-06-17 10:01:40,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-17 10:01:40,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:01:45,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 10:01:45,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-06-17 10:01:45,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-06-17 10:01:45,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-06-17 10:01:45,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-17 10:01:45,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-06-17 10:01:45,296 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:01:45,297 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-17 10:01:45,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 10:01:45,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1951422634, now seen corresponding path program 7 times [2021-06-17 10:01:45,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 10:01:45,298 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784788530] [2021-06-17 10:01:45,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 10:01:45,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 10:01:46,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1272 backedges. 320 proven. 917 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-06-17 10:01:46,235 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 10:01:46,235 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784788530] [2021-06-17 10:01:46,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784788530] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:01:46,236 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651614798] [2021-06-17 10:01:46,236 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:01:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 10:01:46,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 19 conjunts are in the unsatisfiable core [2021-06-17 10:01:46,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 10:01:46,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1272 backedges. 599 proven. 136 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2021-06-17 10:01:46,673 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651614798] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:01:46,673 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 10:01:46,673 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 6] total 55 [2021-06-17 10:01:46,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663899407] [2021-06-17 10:01:46,674 INFO L462 AbstractCegarLoop]: Interpolant automaton has 56 states [2021-06-17 10:01:46,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 10:01:46,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2021-06-17 10:01:46,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=589, Invalid=2491, Unknown=0, NotChecked=0, Total=3080 [2021-06-17 10:01:46,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:01:46,676 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 10:01:46,676 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 56 states, 56 states have (on average 3.2857142857142856) internal successors, (184), 55 states have internal predecessors, (184), 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) [2021-06-17 10:01:46,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 10:01:46,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-06-17 10:01:46,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-06-17 10:01:46,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2021-06-17 10:01:46,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-06-17 10:01:46,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2021-06-17 10:01:46,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:02:00,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 10:02:00,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-06-17 10:02:00,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-06-17 10:02:00,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-06-17 10:02:00,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-17 10:02:00,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-06-17 10:02:00,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2021-06-17 10:02:00,260 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-06-17 10:02:00,266 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-17 10:02:00,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 10:02:00,267 INFO L82 PathProgramCache]: Analyzing trace with hash 334743162, now seen corresponding path program 8 times [2021-06-17 10:02:00,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 10:02:00,267 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110925174] [2021-06-17 10:02:00,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 10:02:00,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 10:02:00,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 371 proven. 606 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-06-17 10:02:00,704 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 10:02:00,704 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110925174] [2021-06-17 10:02:00,704 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110925174] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:02:00,704 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89774675] [2021-06-17 10:02:00,704 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:02:00,779 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 10:02:00,780 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 10:02:00,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 19 conjunts are in the unsatisfiable core [2021-06-17 10:02:00,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 10:02:01,001 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 449 proven. 114 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2021-06-17 10:02:01,002 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89774675] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:02:01,002 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 10:02:01,002 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 6] total 40 [2021-06-17 10:02:01,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584996090] [2021-06-17 10:02:01,002 INFO L462 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-06-17 10:02:01,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 10:02:01,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-06-17 10:02:01,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=402, Invalid=1238, Unknown=0, NotChecked=0, Total=1640 [2021-06-17 10:02:01,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:02:01,003 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 10:02:01,004 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 41 states, 41 states have (on average 3.707317073170732) internal successors, (152), 40 states have internal predecessors, (152), 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) [2021-06-17 10:02:01,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 10:02:01,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-06-17 10:02:01,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-06-17 10:02:01,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2021-06-17 10:02:01,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-06-17 10:02:01,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-06-17 10:02:01,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2021-06-17 10:02:01,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:02:13,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 10:02:13,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-06-17 10:02:13,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-06-17 10:02:13,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-06-17 10:02:13,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-17 10:02:13,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-06-17 10:02:13,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2021-06-17 10:02:13,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-06-17 10:02:14,079 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:02:14,079 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-17 10:02:14,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 10:02:14,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1252674122, now seen corresponding path program 9 times [2021-06-17 10:02:14,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 10:02:14,080 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180127019] [2021-06-17 10:02:14,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 10:02:14,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 10:02:14,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1216 backedges. 627 proven. 475 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-06-17 10:02:14,445 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 10:02:14,445 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180127019] [2021-06-17 10:02:14,445 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180127019] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:02:14,445 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962775636] [2021-06-17 10:02:14,445 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:02:14,539 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-06-17 10:02:14,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 10:02:14,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 23 conjunts are in the unsatisfiable core [2021-06-17 10:02:14,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 10:02:14,696 INFO L134 CoverageAnalysis]: Checked inductivity of 1216 backedges. 507 proven. 166 refuted. 0 times theorem prover too weak. 543 trivial. 0 not checked. [2021-06-17 10:02:14,696 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1962775636] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:02:14,696 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 10:02:14,696 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 9] total 30 [2021-06-17 10:02:14,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832566443] [2021-06-17 10:02:14,697 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-17 10:02:14,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 10:02:14,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-17 10:02:14,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=364, Invalid=566, Unknown=0, NotChecked=0, Total=930 [2021-06-17 10:02:14,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:02:14,698 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 10:02:14,698 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.4193548387096775) internal successors, (106), 30 states have internal predecessors, (106), 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) [2021-06-17 10:02:14,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 10:02:14,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-06-17 10:02:14,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-06-17 10:02:14,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2021-06-17 10:02:14,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-06-17 10:02:14,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-06-17 10:02:14,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2021-06-17 10:02:14,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2021-06-17 10:02:14,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:02:25,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 10:02:25,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-06-17 10:02:25,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-06-17 10:02:25,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-06-17 10:02:25,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-17 10:02:25,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-06-17 10:02:25,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2021-06-17 10:02:25,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-06-17 10:02:25,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 10:02:26,149 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:02:26,149 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-17 10:02:26,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 10:02:26,150 INFO L82 PathProgramCache]: Analyzing trace with hash 1303682950, now seen corresponding path program 10 times [2021-06-17 10:02:26,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 10:02:26,150 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507263197] [2021-06-17 10:02:26,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 10:02:26,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 10:02:26,352 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2021-06-17 10:02:26,352 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 10:02:26,352 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507263197] [2021-06-17 10:02:26,352 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507263197] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:02:26,352 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057259849] [2021-06-17 10:02:26,352 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:02:26,411 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-17 10:02:26,412 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 10:02:26,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-17 10:02:26,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 10:02:26,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 14 [2021-06-17 10:02:26,526 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 10:02:26,531 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 10:02:26,531 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 10:02:26,532 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:18 [2021-06-17 10:02:26,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-06-17 10:02:26,561 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 10:02:26,563 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 10:02:26,563 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 10:02:26,563 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:5 [2021-06-17 10:02:26,661 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2021-06-17 10:02:26,661 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057259849] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:02:26,661 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 10:02:26,661 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-06-17 10:02:26,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346875534] [2021-06-17 10:02:26,662 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-17 10:02:26,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 10:02:26,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-17 10:02:26,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-06-17 10:02:26,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:02:26,662 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 10:02:26,662 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 13 states have internal predecessors, (63), 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) [2021-06-17 10:02:26,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-17 10:02:26,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-06-17 10:02:26,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-06-17 10:02:26,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2021-06-17 10:02:26,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-06-17 10:02:26,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-06-17 10:02:26,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2021-06-17 10:02:26,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2021-06-17 10:02:26,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 10:02:26,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:02:40,302 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 10