/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-NewStatesSleep-NoLbe-Symm.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/min-max-2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-16 20:43:19,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-16 20:43:19,402 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-16 20:43:19,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-16 20:43:19,432 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-16 20:43:19,434 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-16 20:43:19,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-16 20:43:19,440 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-16 20:43:19,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-16 20:43:19,445 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-16 20:43:19,445 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-16 20:43:19,446 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-16 20:43:19,446 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-16 20:43:19,448 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-16 20:43:19,449 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-16 20:43:19,450 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-16 20:43:19,452 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-16 20:43:19,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-16 20:43:19,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-16 20:43:19,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-16 20:43:19,459 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-16 20:43:19,460 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-16 20:43:19,460 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-16 20:43:19,462 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-16 20:43:19,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-16 20:43:19,469 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-16 20:43:19,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-16 20:43:19,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-16 20:43:19,472 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-16 20:43:19,473 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-16 20:43:19,473 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-16 20:43:19,473 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-16 20:43:19,474 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-16 20:43:19,474 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-16 20:43:19,474 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-16 20:43:19,475 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-16 20:43:19,475 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-NewStatesSleep-NoLbe-Symm.epf [2021-06-16 20:43:19,510 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-16 20:43:19,510 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-16 20:43:19,511 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-16 20:43:19,511 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-16 20:43:19,513 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-16 20:43:19,513 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-16 20:43:19,513 INFO L138 SettingsManager]: * Use SBE=true [2021-06-16 20:43:19,513 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-16 20:43:19,513 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-16 20:43:19,513 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-16 20:43:19,514 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-16 20:43:19,514 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-16 20:43:19,514 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-16 20:43:19,514 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-16 20:43:19,514 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-16 20:43:19,514 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-16 20:43:19,515 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-16 20:43:19,515 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-16 20:43:19,515 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-16 20:43:19,515 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-16 20:43:19,515 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-16 20:43:19,515 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-16 20:43:19,515 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-16 20:43:19,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 20:43:19,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-16 20:43:19,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-16 20:43:19,516 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-16 20:43:19,516 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-16 20:43:19,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-16 20:43:19,516 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-16 20:43:19,516 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-16 20:43:19,516 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-16 20:43:19,516 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-16 20:43:19,516 INFO L138 SettingsManager]: * Limit POR to symmetric independence in concurrent analysis=true [2021-06-16 20:43:19,516 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-16 20:43:19,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-16 20:43:19,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-16 20:43:19,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-16 20:43:19,768 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-16 20:43:19,769 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-16 20:43:19,769 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/min-max-2.wvr.bpl [2021-06-16 20:43:19,770 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/min-max-2.wvr.bpl' [2021-06-16 20:43:19,809 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-16 20:43:19,810 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-16 20:43:19,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-16 20:43:19,810 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-16 20:43:19,811 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-16 20:43:19,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 08:43:19" (1/1) ... [2021-06-16 20:43:19,825 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 08:43:19" (1/1) ... [2021-06-16 20:43:19,829 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-16 20:43:19,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-16 20:43:19,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-16 20:43:19,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-16 20:43:19,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 08:43:19" (1/1) ... [2021-06-16 20:43:19,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 08:43:19" (1/1) ... [2021-06-16 20:43:19,839 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 08:43:19" (1/1) ... [2021-06-16 20:43:19,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 08:43:19" (1/1) ... [2021-06-16 20:43:19,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 08:43:19" (1/1) ... [2021-06-16 20:43:19,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 08:43:19" (1/1) ... [2021-06-16 20:43:19,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 08:43:19" (1/1) ... [2021-06-16 20:43:19,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-16 20:43:19,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-16 20:43:19,855 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-16 20:43:19,855 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-16 20:43:19,856 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 08:43:19" (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 [2021-06-16 20:43:19,915 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-16 20:43:19,915 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-16 20:43:19,915 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-16 20:43:19,916 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-16 20:43:19,916 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-16 20:43:19,916 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-16 20:43:19,916 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-16 20:43:19,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-16 20:43:19,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-16 20:43:19,917 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-16 20:43:19,917 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-16 20:43:19,917 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-16 20:43:19,918 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-06-16 20:43:19,918 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-06-16 20:43:19,918 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-06-16 20:43:19,919 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2021-06-16 20:43:19,919 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-06-16 20:43:19,919 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-06-16 20:43:19,920 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-16 20:43:20,125 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-16 20:43:20,126 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-16 20:43:20,127 INFO L202 PluginConnector]: Adding new model min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 08:43:20 BoogieIcfgContainer [2021-06-16 20:43:20,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-16 20:43:20,128 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-16 20:43:20,128 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-16 20:43:20,130 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-16 20:43:20,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 08:43:19" (1/2) ... [2021-06-16 20:43:20,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@479d4cf0 and model type min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 08:43:20, skipping insertion in model container [2021-06-16 20:43:20,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 08:43:20" (2/2) ... [2021-06-16 20:43:20,132 INFO L111 eAbstractionObserver]: Analyzing ICFG min-max-2.wvr.bpl [2021-06-16 20:43:20,155 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-16 20:43:20,155 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-16 20:43:20,155 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-16 20:43:20,156 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-16 20:43:20,213 INFO L149 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2021-06-16 20:43:20,227 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 [2021-06-16 20:43:20,259 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-16 20:43:20,260 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-16 20:43:20,260 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-16 20:43:20,260 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-16 20:43:20,260 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-16 20:43:20,260 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-16 20:43:20,260 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-16 20:43:20,260 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-16 20:43:20,473 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 20:43:20,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 20:43:20,477 INFO L82 PathProgramCache]: Analyzing trace with hash -663319590, now seen corresponding path program 1 times [2021-06-16 20:43:20,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 20:43:20,483 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572617257] [2021-06-16 20:43:20,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 20:43:20,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 20:43:20,610 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 20:43:20,611 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 20:43:20,611 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572617257] [2021-06-16 20:43:20,611 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572617257] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 20:43:20,612 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418591675] [2021-06-16 20:43:20,612 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 [2021-06-16 20:43:20,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 20:43:20,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 3 conjunts are in the unsatisfiable core [2021-06-16 20:43:20,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 20:43:20,785 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-16 20:43:20,786 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418591675] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 20:43:20,786 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 20:43:20,786 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2021-06-16 20:43:20,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261247265] [2021-06-16 20:43:20,790 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-16 20:43:20,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 20:43:20,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-16 20:43:20,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-06-16 20:43:20,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 20:43:20,800 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 20:43:20,801 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 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) [2021-06-16 20:43:20,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 20:43:20,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 20:43:21,193 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-06-16 20:43:21,193 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 20:43:21,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 20:43:21,195 INFO L82 PathProgramCache]: Analyzing trace with hash -1661889959, now seen corresponding path program 1 times [2021-06-16 20:43:21,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 20:43:21,195 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987912615] [2021-06-16 20:43:21,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 20:43:21,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 20:43:21,283 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-16 20:43:21,284 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 20:43:21,284 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987912615] [2021-06-16 20:43:21,284 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987912615] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 20:43:21,284 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1088674108] [2021-06-16 20:43:21,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-06-16 20:43:21,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 20:43:21,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-16 20:43:21,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 20:43:21,389 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-16 20:43:21,389 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1088674108] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 20:43:21,389 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 20:43:21,389 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-06-16 20:43:21,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373666943] [2021-06-16 20:43:21,390 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 20:43:21,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 20:43:21,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 20:43:21,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-06-16 20:43:21,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 20:43:21,391 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 20:43:21,391 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 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) [2021-06-16 20:43:21,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-16 20:43:21,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 20:43:21,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 20:43:21,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 20:43:21,698 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 20:43:21,701 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 20:43:21,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 20:43:21,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1480715777, now seen corresponding path program 2 times [2021-06-16 20:43:21,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 20:43:21,702 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545934239] [2021-06-16 20:43:21,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 20:43:21,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 20:43:21,758 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-06-16 20:43:21,758 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 20:43:21,758 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545934239] [2021-06-16 20:43:21,758 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545934239] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 20:43:21,758 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679263724] [2021-06-16 20:43:21,759 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 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 [2021-06-16 20:43:21,820 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-16 20:43:21,820 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 20:43:21,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-16 20:43:21,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 20:43:21,898 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-06-16 20:43:21,899 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679263724] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 20:43:21,899 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 20:43:21,899 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-06-16 20:43:21,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149193846] [2021-06-16 20:43:21,899 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 20:43:21,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 20:43:21,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 20:43:21,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-06-16 20:43:21,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 20:43:21,900 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 20:43:21,900 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 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) [2021-06-16 20:43:21,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-16 20:43:21,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 20:43:21,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 20:43:22,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 20:43:22,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 20:43:22,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 20:43:22,268 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 20:43:22,269 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 20:43:22,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 20:43:22,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1894154609, now seen corresponding path program 3 times [2021-06-16 20:43:22,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 20:43:22,270 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453322971] [2021-06-16 20:43:22,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 20:43:22,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 20:43:22,351 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-06-16 20:43:22,351 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 20:43:22,351 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453322971] [2021-06-16 20:43:22,351 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453322971] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 20:43:22,352 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597584410] [2021-06-16 20:43:22,352 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 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 [2021-06-16 20:43:22,410 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-16 20:43:22,410 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 20:43:22,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2021-06-16 20:43:22,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 20:43:22,530 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-06-16 20:43:22,530 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597584410] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 20:43:22,531 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 20:43:22,531 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-06-16 20:43:22,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545488708] [2021-06-16 20:43:22,531 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-16 20:43:22,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 20:43:22,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-16 20:43:22,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-16 20:43:22,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 20:43:22,532 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 20:43:22,532 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 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) [2021-06-16 20:43:22,532 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-16 20:43:22,532 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 20:43:22,532 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 20:43:22,532 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 20:43:22,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 20:43:22,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 20:43:22,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 20:43:22,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 20:43:22,928 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 20:43:22,929 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 20:43:22,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 20:43:22,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1355099142, now seen corresponding path program 4 times [2021-06-16 20:43:22,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 20:43:22,929 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949106738] [2021-06-16 20:43:22,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 20:43:22,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 20:43:22,994 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-06-16 20:43:22,994 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 20:43:22,994 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949106738] [2021-06-16 20:43:22,994 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949106738] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 20:43:22,994 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170767900] [2021-06-16 20:43:22,994 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 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 [2021-06-16 20:43:23,047 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-16 20:43:23,047 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 20:43:23,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-16 20:43:23,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 20:43:23,129 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-06-16 20:43:23,129 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170767900] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 20:43:23,130 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 20:43:23,130 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-06-16 20:43:23,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058311562] [2021-06-16 20:43:23,130 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-16 20:43:23,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 20:43:23,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-16 20:43:23,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-06-16 20:43:23,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 20:43:23,131 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 20:43:23,131 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 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) [2021-06-16 20:43:23,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-16 20:43:23,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 20:43:23,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 20:43:23,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-16 20:43:23,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 20:43:24,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 20:43:24,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 20:43:24,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 20:43:24,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 20:43:24,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-16 20:43:24,741 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 20:43:24,741 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 20:43:24,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 20:43:24,742 INFO L82 PathProgramCache]: Analyzing trace with hash -473931578, now seen corresponding path program 5 times [2021-06-16 20:43:24,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 20:43:24,742 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911555583] [2021-06-16 20:43:24,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 20:43:24,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 20:43:24,837 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 5 proven. 39 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-06-16 20:43:24,837 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 20:43:24,838 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911555583] [2021-06-16 20:43:24,838 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911555583] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 20:43:24,838 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593424388] [2021-06-16 20:43:24,838 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 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 [2021-06-16 20:43:24,897 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-06-16 20:43:24,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 20:43:24,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-16 20:43:24,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 20:43:25,040 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 33 proven. 24 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-06-16 20:43:25,040 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1593424388] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 20:43:25,041 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 20:43:25,041 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 14 [2021-06-16 20:43:25,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492091283] [2021-06-16 20:43:25,041 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-16 20:43:25,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 20:43:25,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-16 20:43:25,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-06-16 20:43:25,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 20:43:25,042 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 20:43:25,042 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 14 states have internal predecessors, (105), 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) [2021-06-16 20:43:25,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-16 20:43:25,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 20:43:25,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-16 20:43:25,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-16 20:43:25,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-16 20:43:25,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 20:43:28,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 20:43:28,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 20:43:28,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 20:43:28,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 20:43:28,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-16 20:43:28,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-06-16 20:43:28,362 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 20:43:28,363 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 20:43:28,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 20:43:28,363 INFO L82 PathProgramCache]: Analyzing trace with hash -21734107, now seen corresponding path program 6 times [2021-06-16 20:43:28,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 20:43:28,364 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780377424] [2021-06-16 20:43:28,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 20:43:28,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 20:43:28,515 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 27 proven. 55 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-06-16 20:43:28,516 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 20:43:28,516 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780377424] [2021-06-16 20:43:28,516 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780377424] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 20:43:28,517 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470162993] [2021-06-16 20:43:28,517 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 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 [2021-06-16 20:43:28,568 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-06-16 20:43:28,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 20:43:28,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-16 20:43:28,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 20:43:28,794 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 15 proven. 52 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-06-16 20:43:28,795 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470162993] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 20:43:28,795 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 20:43:28,795 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11] total 22 [2021-06-16 20:43:28,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066681637] [2021-06-16 20:43:28,796 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-06-16 20:43:28,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 20:43:28,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-06-16 20:43:28,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2021-06-16 20:43:28,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 20:43:28,798 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 20:43:28,798 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 4.695652173913044) internal successors, (108), 22 states have internal predecessors, (108), 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) [2021-06-16 20:43:28,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-16 20:43:28,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 20:43:28,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-16 20:43:28,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-16 20:43:28,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-16 20:43:28,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2021-06-16 20:43:28,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 20:43:55,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 20:43:55,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 20:43:55,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 20:43:55,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 20:43:55,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-16 20:43:55,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-06-16 20:43:55,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 199 states. [2021-06-16 20:43:55,887 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-06-16 20:43:55,898 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 20:43:55,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 20:43:55,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1231056311, now seen corresponding path program 7 times [2021-06-16 20:43:55,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 20:43:55,899 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099154652] [2021-06-16 20:43:55,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 20:43:55,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 20:43:56,195 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 247 proven. 399 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-06-16 20:43:56,195 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 20:43:56,196 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099154652] [2021-06-16 20:43:56,196 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099154652] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 20:43:56,196 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825709243] [2021-06-16 20:43:56,196 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 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 [2021-06-16 20:43:56,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 20:43:56,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 29 conjunts are in the unsatisfiable core [2021-06-16 20:43:56,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 20:43:56,828 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 303 proven. 338 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-06-16 20:43:56,828 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825709243] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 20:43:56,828 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 20:43:56,828 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 21] total 45 [2021-06-16 20:43:56,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588840009] [2021-06-16 20:43:56,829 INFO L462 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-06-16 20:43:56,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 20:43:56,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-06-16 20:43:56,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=266, Invalid=1804, Unknown=0, NotChecked=0, Total=2070 [2021-06-16 20:43:56,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 20:43:56,830 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 20:43:56,830 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 46 states, 46 states have (on average 4.695652173913044) internal successors, (216), 45 states have internal predecessors, (216), 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) [2021-06-16 20:43:56,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-16 20:43:56,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-16 20:43:56,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-16 20:43:56,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-16 20:43:56,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-16 20:43:56,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-06-16 20:43:56,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 199 states. [2021-06-16 20:43:56,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 20:43:58,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 20:43:58,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 20:43:58,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 20:43:58,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 20:43:58,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-16 20:43:58,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-06-16 20:43:58,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 199 states. [2021-06-16 20:43:58,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-06-16 20:43:58,828 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 20:43:58,829 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 20:43:58,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 20:43:58,829 INFO L82 PathProgramCache]: Analyzing trace with hash 725645321, now seen corresponding path program 8 times [2021-06-16 20:43:58,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 20:43:58,830 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203548352] [2021-06-16 20:43:58,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 20:43:58,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 20:43:59,376 INFO L134 CoverageAnalysis]: Checked inductivity of 764 backedges. 458 proven. 276 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-06-16 20:43:59,376 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 20:43:59,376 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203548352] [2021-06-16 20:43:59,377 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203548352] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 20:43:59,377 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524520292] [2021-06-16 20:43:59,377 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 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 [2021-06-16 20:43:59,434 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-16 20:43:59,435 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 20:43:59,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-16 20:43:59,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 20:44:00,197 INFO L134 CoverageAnalysis]: Checked inductivity of 764 backedges. 457 proven. 210 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2021-06-16 20:44:00,197 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524520292] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 20:44:00,198 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 20:44:00,198 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 27] total 57 [2021-06-16 20:44:00,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577300768] [2021-06-16 20:44:00,198 INFO L462 AbstractCegarLoop]: Interpolant automaton has 58 states [2021-06-16 20:44:00,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 20:44:00,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-06-16 20:44:00,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=413, Invalid=2893, Unknown=0, NotChecked=0, Total=3306 [2021-06-16 20:44:00,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 20:44:00,200 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 20:44:00,200 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 58 states, 58 states have (on average 3.8275862068965516) internal successors, (222), 57 states have internal predecessors, (222), 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) [2021-06-16 20:44:00,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-16 20:44:00,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-16 20:44:00,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-16 20:44:00,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-16 20:44:00,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-16 20:44:00,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2021-06-16 20:44:00,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 199 states. [2021-06-16 20:44:00,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-06-16 20:44:00,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.