/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-1.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-12 08:40:07,288 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-12 08:40:07,290 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-12 08:40:07,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-12 08:40:07,348 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-12 08:40:07,350 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-12 08:40:07,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-12 08:40:07,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-12 08:40:07,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-12 08:40:07,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-12 08:40:07,359 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-12 08:40:07,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-12 08:40:07,368 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-12 08:40:07,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-12 08:40:07,372 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-12 08:40:07,372 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-12 08:40:07,374 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-12 08:40:07,381 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-12 08:40:07,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-12 08:40:07,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-12 08:40:07,389 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-Sleep-NoLbe-Delay.epf [2021-03-12 08:40:07,430 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-12 08:40:07,430 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-12 08:40:07,430 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-12 08:40:07,431 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-12 08:40:07,433 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-12 08:40:07,433 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-12 08:40:07,434 INFO L138 SettingsManager]: * Use SBE=true [2021-03-12 08:40:07,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-12 08:40:07,434 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-12 08:40:07,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-12 08:40:07,435 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-12 08:40:07,435 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-12 08:40:07,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-12 08:40:07,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-12 08:40:07,436 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-12 08:40:07,436 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-12 08:40:07,436 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-12 08:40:07,436 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-12 08:40:07,436 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-12 08:40:07,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-12 08:40:07,436 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-12 08:40:07,437 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-12 08:40:07,437 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-12 08:40:07,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-12 08:40:07,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-12 08:40:07,437 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-12 08:40:07,437 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-12 08:40:07,437 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-12 08:40:07,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-12 08:40:07,438 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-12 08:40:07,438 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-03-12 08:40:07,438 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-12 08:40:07,438 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-03-12 08:40:07,438 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-12 08:40:07,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-12 08:40:07,782 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-12 08:40:07,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-12 08:40:07,785 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-12 08:40:07,788 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-12 08:40:07,789 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-1.wvr.bpl [2021-03-12 08:40:07,789 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-1.wvr.bpl' [2021-03-12 08:40:07,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-12 08:40:07,839 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-12 08:40:07,840 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-12 08:40:07,840 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-12 08:40:07,840 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-12 08:40:07,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 08:40:07" (1/1) ... [2021-03-12 08:40:07,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 08:40:07" (1/1) ... [2021-03-12 08:40:07,867 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-12 08:40:07,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-12 08:40:07,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-12 08:40:07,869 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-12 08:40:07,875 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 08:40:07" (1/1) ... [2021-03-12 08:40:07,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 08:40:07" (1/1) ... [2021-03-12 08:40:07,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 08:40:07" (1/1) ... [2021-03-12 08:40:07,877 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 08:40:07" (1/1) ... [2021-03-12 08:40:07,881 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 08:40:07" (1/1) ... [2021-03-12 08:40:07,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 08:40:07" (1/1) ... [2021-03-12 08:40:07,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 08:40:07" (1/1) ... [2021-03-12 08:40:07,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-12 08:40:07,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-12 08:40:07,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-12 08:40:07,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-12 08:40:07,892 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 08:40:07" (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 [2021-03-12 08:40:07,968 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-12 08:40:07,969 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-12 08:40:07,969 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-12 08:40:07,969 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-12 08:40:07,969 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-12 08:40:07,969 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-12 08:40:07,969 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-12 08:40:07,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-12 08:40:07,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-12 08:40:07,970 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-12 08:40:08,152 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-12 08:40:08,152 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-12 08:40:08,154 INFO L202 PluginConnector]: Adding new model misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 08:40:08 BoogieIcfgContainer [2021-03-12 08:40:08,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-12 08:40:08,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-12 08:40:08,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-12 08:40:08,158 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-12 08:40:08,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 08:40:07" (1/2) ... [2021-03-12 08:40:08,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c189018 and model type misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.03 08:40:08, skipping insertion in model container [2021-03-12 08:40:08,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 08:40:08" (2/2) ... [2021-03-12 08:40:08,160 INFO L111 eAbstractionObserver]: Analyzing ICFG misc-1.wvr.bpl [2021-03-12 08:40:08,166 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-12 08:40:08,166 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-12 08:40:08,169 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-12 08:40:08,169 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-12 08:40:08,195 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-03-12 08:40:08,210 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 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 [2021-03-12 08:40:08,281 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-12 08:40:08,282 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-12 08:40:08,282 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-12 08:40:08,282 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-12 08:40:08,282 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-12 08:40:08,282 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-12 08:40:08,282 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-12 08:40:08,282 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-12 08:40:08,376 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 08:40:08,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 08:40:08,382 INFO L82 PathProgramCache]: Analyzing trace with hash 551372010, now seen corresponding path program 1 times [2021-03-12 08:40:08,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 08:40:08,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939843574] [2021-03-12 08:40:08,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 08:40:08,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 08:40:08,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 08:40:08,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939843574] [2021-03-12 08:40:08,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 08:40:08,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-12 08:40:08,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144731454] [2021-03-12 08:40:08,697 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-12 08:40:08,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 08:40:08,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-12 08:40:08,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-12 08:40:08,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 08:40:08,718 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 08:40:08,723 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-03-12 08:40:08,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 08:40:08,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 08:40:08,886 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-12 08:40:08,886 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 08:40:08,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 08:40:08,890 INFO L82 PathProgramCache]: Analyzing trace with hash 2089023387, now seen corresponding path program 1 times [2021-03-12 08:40:08,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 08:40:08,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135679334] [2021-03-12 08:40:08,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 08:40:08,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 08:40:08,973 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-12 08:40:08,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135679334] [2021-03-12 08:40:08,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5169424] [2021-03-12 08:40:08,975 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 [2021-03-12 08:40:09,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 08:40:09,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-12 08:40:09,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 08:40:09,194 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 08:40:09,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 08:40:09,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-12 08:40:09,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458161112] [2021-03-12 08:40:09,197 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 08:40:09,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 08:40:09,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 08:40:09,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-03-12 08:40:09,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 08:40:09,203 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 08:40:09,204 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 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) [2021-03-12 08:40:09,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 08:40:09,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 08:40:09,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 08:40:09,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 08:40:09,527 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 08:40:09,528 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 08:40:09,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 08:40:09,528 INFO L82 PathProgramCache]: Analyzing trace with hash 655496662, now seen corresponding path program 1 times [2021-03-12 08:40:09,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 08:40:09,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821910507] [2021-03-12 08:40:09,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 08:40:09,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 08:40:10,018 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 08:40:10,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821910507] [2021-03-12 08:40:10,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835694438] [2021-03-12 08:40:10,020 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) [2021-03-12 08:40:10,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 08:40:10,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 29 conjunts are in the unsatisfiable core Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 08:40:10,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 08:40:10,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-03-12 08:40:10,428 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 08:40:10,433 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 08:40:10,435 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 08:40:10,435 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:10 [2021-03-12 08:40:10,483 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 08:40:10,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 08:40:10,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 19 [2021-03-12 08:40:10,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706472137] [2021-03-12 08:40:10,484 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-12 08:40:10,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 08:40:10,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-12 08:40:10,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2021-03-12 08:40:10,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 08:40:10,486 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 08:40:10,486 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.35) internal successors, (47), 19 states have internal predecessors, (47), 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) [2021-03-12 08:40:10,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 08:40:10,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 08:40:10,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 08:40:11,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 08:40:11,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 08:40:11,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-12 08:40:11,359 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 08:40:11,359 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 08:40:11,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 08:40:11,360 INFO L82 PathProgramCache]: Analyzing trace with hash -488912293, now seen corresponding path program 1 times [2021-03-12 08:40:11,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 08:40:11,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273831108] [2021-03-12 08:40:11,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 08:40:11,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 08:40:11,442 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 08:40:11,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273831108] [2021-03-12 08:40:11,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6190070] [2021-03-12 08:40:11,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-03-12 08:40:11,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 08:40:11,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-12 08:40:11,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 08:40:11,579 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 15 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 08:40:11,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 08:40:11,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-03-12 08:40:11,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275714614] [2021-03-12 08:40:11,581 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 08:40:11,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 08:40:11,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 08:40:11,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-03-12 08:40:11,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 08:40:11,583 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 08:40:11,583 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 9 states have internal predecessors, (44), 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) [2021-03-12 08:40:11,584 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 08:40:11,584 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 08:40:11,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-03-12 08:40:11,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 08:40:11,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 08:40:11,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 08:40:11,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-12 08:40:11,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 08:40:11,955 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 08:40:11,955 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 08:40:11,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 08:40:11,956 INFO L82 PathProgramCache]: Analyzing trace with hash -514289982, now seen corresponding path program 2 times [2021-03-12 08:40:11,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 08:40:11,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618491632] [2021-03-12 08:40:11,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 08:40:11,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 08:40:12,891 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 1 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 08:40:12,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618491632] [2021-03-12 08:40:12,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910067922] [2021-03-12 08:40:12,892 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 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 [2021-03-12 08:40:12,952 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 08:40:12,953 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 08:40:12,954 WARN L261 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 45 conjunts are in the unsatisfiable core [2021-03-12 08:40:12,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 08:40:13,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2021-03-12 08:40:13,644 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 08:40:13,648 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 08:40:13,649 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 08:40:13,649 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:49, output treesize:10 [2021-03-12 08:40:13,691 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 08:40:13,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 08:40:13,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 18] total 35 [2021-03-12 08:40:13,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838854676] [2021-03-12 08:40:13,694 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-03-12 08:40:13,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 08:40:13,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-03-12 08:40:13,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1068, Unknown=0, NotChecked=0, Total=1260 [2021-03-12 08:40:13,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 08:40:13,704 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 08:40:13,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 2.1944444444444446) internal successors, (79), 35 states have internal predecessors, (79), 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) [2021-03-12 08:40:13,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 08:40:13,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 08:40:13,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-03-12 08:40:13,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 08:40:13,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 08:40:15,216 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-03-12 08:40:16,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 08:40:16,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 08:40:16,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-12 08:40:16,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 08:40:16,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-03-12 08:40:16,791 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 08:40:16,791 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 08:40:16,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 08:40:16,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1025647515, now seen corresponding path program 2 times [2021-03-12 08:40:16,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 08:40:16,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499570431] [2021-03-12 08:40:16,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 08:40:16,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 08:40:16,979 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 110 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 08:40:16,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499570431] [2021-03-12 08:40:16,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673010820] [2021-03-12 08:40:16,980 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 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 [2021-03-12 08:40:17,016 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 08:40:17,016 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 08:40:17,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-12 08:40:17,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 08:40:17,196 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 139 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 08:40:17,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 08:40:17,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 17 [2021-03-12 08:40:17,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31019764] [2021-03-12 08:40:17,199 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-12 08:40:17,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 08:40:17,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-12 08:40:17,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2021-03-12 08:40:17,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 08:40:17,200 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 08:40:17,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 17 states have internal predecessors, (80), 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) [2021-03-12 08:40:17,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 08:40:17,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 08:40:17,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-03-12 08:40:17,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 08:40:17,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-03-12 08:40:17,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 08:40:17,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 08:40:17,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 08:40:17,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-12 08:40:17,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 08:40:17,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-03-12 08:40:17,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-12 08:40:17,783 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 08:40:17,783 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 08:40:17,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 08:40:17,784 INFO L82 PathProgramCache]: Analyzing trace with hash -76158586, now seen corresponding path program 3 times [2021-03-12 08:40:17,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 08:40:17,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696422064] [2021-03-12 08:40:17,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 08:40:17,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 08:40:20,543 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 91 proven. 289 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 08:40:20,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696422064] [2021-03-12 08:40:20,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987924379] [2021-03-12 08:40:20,544 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 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 [2021-03-12 08:40:20,587 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-03-12 08:40:20,588 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 08:40:20,589 WARN L261 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 95 conjunts are in the unsatisfiable core [2021-03-12 08:40:20,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 08:40:25,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 08:40:25,326 INFO L244 Elim1Store]: Index analysis took 136 ms [2021-03-12 08:40:26,022 WARN L205 SmtUtils]: Spent 691.00 ms on a formula simplification that was a NOOP. DAG size: 321 [2021-03-12 08:40:26,023 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 08:40:26,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 17 select indices, 17 select index equivalence classes, 66 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 70 case distinctions, treesize of input 136 treesize of output 768 [2021-03-12 08:40:27,510 WARN L205 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 5520 DAG size of output: 3452 [2021-03-12 08:40:28,354 WARN L205 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 5551 DAG size of output: 3483 [2021-03-12 08:40:28,657 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 3252 DAG size of output: 3228 [2021-03-12 08:40:29,214 WARN L205 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 2957 DAG size of output: 3105 [2021-03-12 08:40:29,641 WARN L205 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 2953 DAG size of output: 3053 [2021-03-12 08:40:30,057 WARN L205 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 2949 DAG size of output: 3117 [2021-03-12 08:40:30,312 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 2943 DAG size of output: 2943 [2021-03-12 08:40:30,553 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 2750 DAG size of output: 2750 [2021-03-12 08:40:31,705 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 2451 DAG size of output: 2613 [2021-03-12 08:40:31,919 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 2445 DAG size of output: 2445 [2021-03-12 08:40:33,135 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 1933 DAG size of output: 1933 [2021-03-12 08:40:33,289 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 1732 DAG size of output: 1732 [2021-03-12 08:40:36,274 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 2338 DAG size of output: 2218 [2021-03-12 08:40:36,716 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 2624 DAG size of output: 2475 [2021-03-12 08:40:36,948 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 3108 DAG size of output: 2884 [2021-03-12 08:40:37,774 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 3619 DAG size of output: 3368 [2021-03-12 08:40:38,178 WARN L205 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 4120 DAG size of output: 3866 [2021-03-12 08:40:38,647 WARN L205 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 4606 DAG size of output: 4329 [2021-03-12 08:40:40,217 WARN L205 SmtUtils]: Spent 643.00 ms on a formula simplification. DAG size of input: 5279 DAG size of output: 4859 [2021-03-12 08:40:41,007 WARN L205 SmtUtils]: Spent 758.00 ms on a formula simplification. DAG size of input: 5844 DAG size of output: 5424 [2021-03-12 08:40:42,049 WARN L205 SmtUtils]: Spent 997.00 ms on a formula simplification. DAG size of input: 6424 DAG size of output: 6001 [2021-03-12 08:40:43,382 WARN L205 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 6849 DAG size of output: 6424 [2021-03-12 08:40:44,418 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 1060 DAG size of output: 1003 [2021-03-12 08:40:45,847 WARN L205 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 7363 DAG size of output: 6904 [2021-03-12 08:40:47,303 WARN L205 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 7363 DAG size of output: 6904 [2021-03-12 08:40:48,965 WARN L205 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 7369 DAG size of output: 6910 [2021-03-12 08:40:51,999 WARN L205 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 6706 DAG size of output: 7742 [2021-03-12 08:40:54,939 WARN L205 SmtUtils]: Spent 2.85 s on a formula simplification. DAG size of input: 6694 DAG size of output: 7515 [2021-03-12 08:40:56,366 WARN L205 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 6683 DAG size of output: 6661 [2021-03-12 08:40:56,516 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 979 DAG size of output: 967 [2021-03-12 08:40:58,080 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 2636 DAG size of output: 2289 [2021-03-12 08:40:59,298 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 2007 DAG size of output: 1740 [2021-03-12 08:40:59,438 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 2294 DAG size of output: 2005 [2021-03-12 08:41:02,939 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 3130 DAG size of output: 2853 [2021-03-12 08:41:03,230 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 3482 DAG size of output: 3165 [2021-03-12 08:41:03,409 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 3870 DAG size of output: 3529 [2021-03-12 08:41:03,981 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 4395 DAG size of output: 4002 [2021-03-12 08:41:04,557 WARN L205 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 6817 DAG size of output: 6294 [2021-03-12 08:41:05,695 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 2663 DAG size of output: 2280 [2021-03-12 08:41:06,433 WARN L205 SmtUtils]: Spent 714.00 ms on a formula simplification. DAG size of input: 7973 DAG size of output: 7331 [2021-03-12 08:41:07,661 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 6228 DAG size of output: 6206 [2021-03-12 08:41:08,654 WARN L205 SmtUtils]: Spent 936.00 ms on a formula simplification. DAG size of input: 5811 DAG size of output: 5789 [2021-03-12 08:41:08,862 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 2734 DAG size of output: 2734 [2021-03-12 08:41:10,111 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 3222 DAG size of output: 3195 [2021-03-12 08:41:10,432 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 3681 DAG size of output: 3648 [2021-03-12 08:41:10,619 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 3784 DAG size of output: 3751 [2021-03-12 08:41:10,828 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 4094 DAG size of output: 4061 [2021-03-12 08:41:11,000 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 2552 DAG size of output: 2552 [2021-03-12 08:41:12,248 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 2268 DAG size of output: 2268 [2021-03-12 08:41:12,387 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 1987 DAG size of output: 1987 [2021-03-12 08:41:17,551 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 3749 DAG size of output: 3482 [2021-03-12 08:41:17,760 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 5002 DAG size of output: 4596 [2021-03-12 08:41:18,034 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 6139 DAG size of output: 5669 [2021-03-12 08:41:18,383 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 6950 DAG size of output: 6407 [2021-03-12 08:41:18,817 WARN L205 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 7808 DAG size of output: 7168 [2021-03-12 08:41:20,051 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 2849 DAG size of output: 2798 [2021-03-12 08:41:20,202 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 3163 DAG size of output: 3111 [2021-03-12 08:41:20,783 WARN L205 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 10131 DAG size of output: 9327 [2021-03-12 08:41:21,486 WARN L205 SmtUtils]: Spent 637.00 ms on a formula simplification. DAG size of input: 11625 DAG size of output: 10669 [2021-03-12 08:41:22,468 WARN L205 SmtUtils]: Spent 896.00 ms on a formula simplification. DAG size of input: 14224 DAG size of output: 13220 [2021-03-12 08:41:22,743 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 1179 DAG size of output: 1251 [2021-03-12 08:41:24,226 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 4179 DAG size of output: 4235 [2021-03-12 08:41:24,542 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 4623 DAG size of output: 4689 [2021-03-12 08:41:24,685 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 1043 DAG size of output: 1140 [2021-03-12 08:41:24,825 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 980 DAG size of output: 985 [2021-03-12 08:41:27,159 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 4020 DAG size of output: 3883 [2021-03-12 08:41:27,902 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 5076 DAG size of output: 4944 [2021-03-12 08:41:28,152 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 5615 DAG size of output: 5477 [2021-03-12 08:41:28,463 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 6152 DAG size of output: 6008 [2021-03-12 08:41:28,847 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 6695 DAG size of output: 6549 [2021-03-12 08:41:29,265 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 7165 DAG size of output: 7015 [2021-03-12 08:41:29,771 WARN L205 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 7780 DAG size of output: 7628 [2021-03-12 08:41:30,325 WARN L205 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 8380 DAG size of output: 8221 [2021-03-12 08:41:30,999 WARN L205 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 9009 DAG size of output: 8845 [2021-03-12 08:41:31,945 WARN L205 SmtUtils]: Spent 874.00 ms on a formula simplification. DAG size of input: 11234 DAG size of output: 11072 [2021-03-12 08:41:33,004 WARN L205 SmtUtils]: Spent 973.00 ms on a formula simplification. DAG size of input: 11925 DAG size of output: 11758 [2021-03-12 08:41:34,027 WARN L205 SmtUtils]: Spent 932.00 ms on a formula simplification. DAG size of input: 4242 DAG size of output: 5183 [2021-03-12 08:41:34,448 WARN L205 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 4152 DAG size of output: 4131 [2021-03-12 08:41:34,831 WARN L205 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 3714 DAG size of output: 3693 [2021-03-12 08:41:34,973 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 2286 DAG size of output: 2286 [2021-03-12 08:41:36,218 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 3348 DAG size of output: 3254 [2021-03-12 08:41:39,516 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 4223 DAG size of output: 3861 [2021-03-12 08:41:39,717 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 5267 DAG size of output: 4817 [2021-03-12 08:41:40,357 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 5890 DAG size of output: 5384 [2021-03-12 08:41:41,413 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 6718 DAG size of output: 6097 [2021-03-12 08:41:41,900 WARN L205 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 9209 DAG size of output: 8440 Received shutdown request... [2021-03-12 08:54:38,134 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 08:54:38,134 WARN L545 AbstractCegarLoop]: Verification canceled [2021-03-12 08:54:38,140 WARN L224 ceAbstractionStarter]: Timeout [2021-03-12 08:54:38,141 INFO L202 PluginConnector]: Adding new model misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.03 08:54:38 BasicIcfg [2021-03-12 08:54:38,141 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-12 08:54:38,141 INFO L168 Benchmark]: Toolchain (without parser) took 870305.82 ms. Allocated memory was 255.9 MB in the beginning and 2.0 GB in the end (delta: 1.8 GB). Free memory was 236.7 MB in the beginning and 1.8 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.3 GB. Max. memory is 16.0 GB. [2021-03-12 08:54:38,141 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.16 ms. Allocated memory is still 255.9 MB. Free memory was 237.9 MB in the beginning and 237.8 MB in the end (delta: 95.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-12 08:54:38,141 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.67 ms. Allocated memory is still 255.9 MB. Free memory was 236.2 MB in the beginning and 234.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-12 08:54:38,141 INFO L168 Benchmark]: Boogie Preprocessor took 21.26 ms. Allocated memory is still 255.9 MB. Free memory was 234.8 MB in the beginning and 233.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-12 08:54:38,141 INFO L168 Benchmark]: RCFGBuilder took 263.56 ms. Allocated memory is still 255.9 MB. Free memory was 233.6 MB in the beginning and 237.9 MB in the end (delta: -4.3 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.0 GB. [2021-03-12 08:54:38,142 INFO L168 Benchmark]: TraceAbstraction took 869985.34 ms. Allocated memory was 255.9 MB in the beginning and 2.0 GB in the end (delta: 1.8 GB). Free memory was 237.5 MB in the beginning and 1.8 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.3 GB. Max. memory is 16.0 GB. [2021-03-12 08:54:38,142 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.16 ms. Allocated memory is still 255.9 MB. Free memory was 237.9 MB in the beginning and 237.8 MB in the end (delta: 95.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 27.67 ms. Allocated memory is still 255.9 MB. Free memory was 236.2 MB in the beginning and 234.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 21.26 ms. Allocated memory is still 255.9 MB. Free memory was 234.8 MB in the beginning and 233.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * RCFGBuilder took 263.56 ms. Allocated memory is still 255.9 MB. Free memory was 233.6 MB in the beginning and 237.9 MB in the end (delta: -4.3 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 869985.34 ms. Allocated memory was 255.9 MB in the beginning and 2.0 GB in the end (delta: 1.8 GB). Free memory was 237.5 MB in the beginning and 1.8 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.3 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1339, positive: 1082, positive conditional: 1082, positive unconditional: 0, negative: 257, negative conditional: 257, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 1082, positive: 1082, positive conditional: 1082, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 1082, positive: 1082, positive conditional: 0, positive unconditional: 1082, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 80, positive: 80, positive conditional: 0, positive unconditional: 80, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 80, positive: 80, positive conditional: 0, positive unconditional: 80, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1082, positive: 1002, positive conditional: 0, positive unconditional: 1002, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 80, unknown conditional: 0, unknown unconditional: 80] , Statistics on independence cache: Total cache size (in pairs): 80, Positive cache size: 80, Positive conditional cache size: 0, Positive unconditional cache size: 80, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 80, Positive cache size: 80, Positive conditional cache size: 0, Positive unconditional cache size: 80, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 80, Positive cache size: 80, Positive conditional cache size: 0, Positive unconditional cache size: 80, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 80, Positive cache size: 80, Positive conditional cache size: 0, Positive unconditional cache size: 80, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 80, Positive cache size: 80, Positive conditional cache size: 0, Positive unconditional cache size: 80, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 80, Positive cache size: 80, Positive conditional cache size: 0, Positive unconditional cache size: 80, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 80, Positive cache size: 80, Positive conditional cache size: 0, Positive unconditional cache size: 80, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 ], Maximal queried relation: 0, Independence queries for same thread: 257 - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 65). Cancelled while PartialOrderCegarLoop was analyzing trace of length 94 with TraceHistMax 10,while TraceCheckSpWp was constructing forward predicates,while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations,while ExplicitLhsPolynomialRelations was build 0 of 1 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 869912.2ms, OverallIterations: 7, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.3ms, PartialOrderReductionTime: 4412.7ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 96, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 57.3ms SsaConstructionTime, 216.8ms SatisfiabilityAnalysisTime, 3436.0ms InterpolantComputationTime, 429 NumberOfCodeBlocks, 429 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 418 ConstructedInterpolants, 0 QuantifiedInterpolants, 5679 SizeOfPredicates, 20 NumberOfNonLiveVariables, 398 ConjunctsInSsa, 105 ConjunctsInUnsatCore, 11 InterpolantComputations, 1 PerfectInterpolantSequences, 273/614 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown