/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-POR-DelaySleep-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-06 17:45:37,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-06 17:45:37,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-06 17:45:37,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-06 17:45:37,176 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-06 17:45:37,177 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-06 17:45:37,177 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-06 17:45:37,178 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-DelaySleep-NoLbe-Random42.epf [2021-06-06 17:45:37,212 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-06 17:45:37,212 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-06 17:45:37,213 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-06 17:45:37,213 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-06 17:45:37,215 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-06 17:45:37,216 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-06 17:45:37,216 INFO L138 SettingsManager]: * Use SBE=true [2021-06-06 17:45:37,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-06 17:45:37,216 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-06 17:45:37,216 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-06 17:45:37,217 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-06 17:45:37,217 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-06 17:45:37,217 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-06 17:45:37,217 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-06 17:45:37,217 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-06 17:45:37,218 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-06 17:45:37,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-06 17:45:37,218 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-06 17:45:37,218 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-06 17:45:37,218 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-06 17:45:37,218 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-06 17:45:37,218 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-06 17:45:37,218 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-06 17:45:37,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 17:45:37,219 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-06 17:45:37,219 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-06 17:45:37,219 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-06 17:45:37,219 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-06 17:45:37,219 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-06 17:45:37,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-06 17:45:37,219 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-06 17:45:37,220 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-06 17:45:37,220 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-06 17:45:37,220 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-06 17:45:37,220 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-06 17:45:37,220 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-06 17:45:37,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-06 17:45:37,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-06 17:45:37,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-06 17:45:37,530 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-06 17:45:37,532 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-06 17:45:37,533 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl [2021-06-06 17:45:37,533 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl' [2021-06-06 17:45:37,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-06 17:45:37,559 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-06 17:45:37,561 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-06 17:45:37,561 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-06 17:45:37,561 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-06 17:45:37,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:45:37" (1/1) ... [2021-06-06 17:45:37,583 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:45:37" (1/1) ... [2021-06-06 17:45:37,590 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-06 17:45:37,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-06 17:45:37,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-06 17:45:37,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-06 17:45:37,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:45:37" (1/1) ... [2021-06-06 17:45:37,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:45:37" (1/1) ... [2021-06-06 17:45:37,598 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:45:37" (1/1) ... [2021-06-06 17:45:37,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:45:37" (1/1) ... [2021-06-06 17:45:37,602 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:45:37" (1/1) ... [2021-06-06 17:45:37,609 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:45:37" (1/1) ... [2021-06-06 17:45:37,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:45:37" (1/1) ... [2021-06-06 17:45:37,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-06 17:45:37,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-06 17:45:37,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-06 17:45:37,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-06 17:45:37,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:45:37" (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 [2021-06-06 17:45:37,690 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-06 17:45:37,690 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-06 17:45:37,690 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-06 17:45:37,691 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-06 17:45:37,691 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-06 17:45:37,691 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-06 17:45:37,691 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-06 17:45:37,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-06 17:45:37,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-06 17:45:37,693 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-06 17:45:37,693 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-06 17:45:37,693 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-06 17:45:37,694 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-06 17:45:37,865 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-06 17:45:37,865 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-06 17:45:37,866 INFO L202 PluginConnector]: Adding new model sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 05:45:37 BoogieIcfgContainer [2021-06-06 17:45:37,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-06 17:45:37,868 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-06 17:45:37,868 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-06 17:45:37,870 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-06 17:45:37,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:45:37" (1/2) ... [2021-06-06 17:45:37,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e6dc28b and model type sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.06 05:45:37, skipping insertion in model container [2021-06-06 17:45:37,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 05:45:37" (2/2) ... [2021-06-06 17:45:37,873 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-fun.wvr.bpl [2021-06-06 17:45:37,879 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-06 17:45:37,879 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-06 17:45:37,880 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-06 17:45:37,880 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-06 17:45:37,912 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-06 17:45:37,943 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 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 [2021-06-06 17:45:38,049 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-06 17:45:38,049 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-06 17:45:38,049 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-06 17:45:38,049 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-06 17:45:38,049 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-06 17:45:38,049 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-06 17:45:38,050 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-06 17:45:38,050 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-06 17:45:38,097 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:45:38,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:45:38,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1911864892, now seen corresponding path program 1 times [2021-06-06 17:45:38,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:45:38,113 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877520215] [2021-06-06 17:45:38,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:45:38,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:45:38,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:45:38,344 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:45:38,344 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877520215] [2021-06-06 17:45:38,344 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877520215] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 17:45:38,345 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 17:45:38,345 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-06 17:45:38,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635369772] [2021-06-06 17:45:38,349 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-06 17:45:38,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:45:38,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-06 17:45:38,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-06-06 17:45:38,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:45:38,362 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:45:38,364 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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) [2021-06-06 17:45:38,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:45:38,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:45:38,429 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-06 17:45:38,429 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:45:38,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:45:38,432 INFO L82 PathProgramCache]: Analyzing trace with hash 286975282, now seen corresponding path program 1 times [2021-06-06 17:45:38,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:45:38,433 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610937691] [2021-06-06 17:45:38,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:45:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:45:38,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 17:45:38,488 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:45:38,488 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610937691] [2021-06-06 17:45:38,488 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610937691] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 17:45:38,489 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 17:45:38,489 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-06 17:45:38,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120004829] [2021-06-06 17:45:38,493 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-06 17:45:38,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:45:38,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-06 17:45:38,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-06 17:45:38,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:45:38,498 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:45:38,498 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2021-06-06 17:45:38,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:45:38,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:45:38,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:45:38,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:45:38,581 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-06 17:45:38,581 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:45:38,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:45:38,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1420874500, now seen corresponding path program 1 times [2021-06-06 17:45:38,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:45:38,582 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131531074] [2021-06-06 17:45:38,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:45:38,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:45:38,896 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:45:38,896 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:45:38,897 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131531074] [2021-06-06 17:45:38,897 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131531074] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:45:38,897 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133599391] [2021-06-06 17:45:38,897 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 [2021-06-06 17:45:38,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:45:38,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 18 conjunts are in the unsatisfiable core [2021-06-06 17:45:38,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:45:39,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-06 17:45:39,303 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:45:39,309 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:45:39,311 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:45:39,312 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:7 [2021-06-06 17:45:39,346 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:45:39,346 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133599391] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:45:39,346 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:45:39,347 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-06-06 17:45:39,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309680176] [2021-06-06 17:45:39,347 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-06 17:45:39,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:45:39,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-06 17:45:39,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-06-06 17:45:39,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:45:39,348 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:45:39,349 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2021-06-06 17:45:39,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:45:39,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:45:39,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:45:39,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:45:39,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:45:39,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:45:39,732 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:45:39,733 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:45:39,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:45:39,733 INFO L82 PathProgramCache]: Analyzing trace with hash 778556826, now seen corresponding path program 2 times [2021-06-06 17:45:39,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:45:39,734 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735115768] [2021-06-06 17:45:39,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:45:39,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:45:39,792 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:45:39,792 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:45:39,792 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735115768] [2021-06-06 17:45:39,792 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735115768] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:45:39,792 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [897813136] [2021-06-06 17:45:39,793 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:45:39,842 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 17:45:39,842 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:45:39,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-06 17:45:39,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:45:39,951 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:45:39,951 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [897813136] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:45:39,952 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:45:39,952 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2021-06-06 17:45:39,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106185770] [2021-06-06 17:45:39,956 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-06 17:45:39,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:45:39,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-06 17:45:39,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-06-06 17:45:39,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:45:39,957 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:45:39,957 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 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) [2021-06-06 17:45:39,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:45:39,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:45:39,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:45:39,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:45:40,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:45:40,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:45:40,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:45:40,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:45:40,296 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:45:40,297 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:45:40,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:45:40,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1305674936, now seen corresponding path program 3 times [2021-06-06 17:45:40,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:45:40,298 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819864697] [2021-06-06 17:45:40,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:45:40,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:45:40,714 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:45:40,714 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:45:40,714 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819864697] [2021-06-06 17:45:40,714 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819864697] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:45:40,714 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249670742] [2021-06-06 17:45:40,715 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:45:40,760 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-06 17:45:40,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:45:40,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-06 17:45:40,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:45:40,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:40,944 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 23 treesize of output 11 [2021-06-06 17:45:40,946 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:45:40,952 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:45:40,954 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:45:40,954 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:32, output treesize:7 [2021-06-06 17:45:40,982 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:45:40,983 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249670742] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:45:40,983 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:45:40,983 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 15 [2021-06-06 17:45:40,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635675737] [2021-06-06 17:45:40,983 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-06 17:45:40,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:45:40,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-06 17:45:40,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2021-06-06 17:45:40,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:45:40,985 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:45:40,985 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.5) internal successors, (40), 15 states have internal predecessors, (40), 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) [2021-06-06 17:45:40,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:45:40,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:45:40,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:45:40,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:45:40,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:45:41,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:45:41,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:45:41,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:45:41,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:45:41,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:45:41,584 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:45:41,585 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:45:41,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:45:41,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1528653940, now seen corresponding path program 4 times [2021-06-06 17:45:41,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:45:41,586 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271426729] [2021-06-06 17:45:41,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:45:41,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:45:41,655 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:45:41,655 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:45:41,655 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271426729] [2021-06-06 17:45:41,655 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271426729] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:45:41,655 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666681717] [2021-06-06 17:45:41,655 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:45:41,692 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 17:45:41,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:45:41,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-06 17:45:41,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:45:41,792 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:45:41,792 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666681717] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:45:41,793 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:45:41,793 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2021-06-06 17:45:41,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202506520] [2021-06-06 17:45:41,793 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-06 17:45:41,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:45:41,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-06 17:45:41,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-06-06 17:45:41,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:45:41,794 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:45:41,794 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 13 states have internal predecessors, (35), 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) [2021-06-06 17:45:41,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:45:41,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:45:41,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:45:41,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:45:41,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:45:41,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:45:42,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:45:42,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:45:42,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:45:42,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:45:42,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:45:42,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:45:42,232 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-06-06 17:45:42,233 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:45:42,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:45:42,233 INFO L82 PathProgramCache]: Analyzing trace with hash 594495762, now seen corresponding path program 5 times [2021-06-06 17:45:42,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:45:42,234 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419922972] [2021-06-06 17:45:42,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:45:42,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:45:42,338 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:45:42,338 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:45:42,338 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419922972] [2021-06-06 17:45:42,338 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419922972] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:45:42,339 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712150098] [2021-06-06 17:45:42,339 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:45:42,376 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-06-06 17:45:42,376 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:45:42,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-06 17:45:42,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:45:42,482 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:45:42,482 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1712150098] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:45:42,482 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:45:42,482 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 14 [2021-06-06 17:45:42,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422113960] [2021-06-06 17:45:42,483 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-06 17:45:42,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:45:42,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-06 17:45:42,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-06-06 17:45:42,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:45:42,484 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:45:42,484 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 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) [2021-06-06 17:45:42,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:45:42,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:45:42,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:45:42,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:45:42,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:45:42,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:45:42,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:45:42,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:45:42,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:45:42,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:45:42,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:45:42,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:45:42,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:45:42,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:45:42,936 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:45:42,937 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:45:42,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:45:42,937 INFO L82 PathProgramCache]: Analyzing trace with hash 516651568, now seen corresponding path program 6 times [2021-06-06 17:45:42,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:45:42,937 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057856510] [2021-06-06 17:45:42,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:45:42,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:45:43,586 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:45:43,586 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:45:43,586 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057856510] [2021-06-06 17:45:43,586 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057856510] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:45:43,586 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132020072] [2021-06-06 17:45:43,586 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:45:43,631 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-06-06 17:45:43,631 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:45:43,632 WARN L261 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 45 conjunts are in the unsatisfiable core [2021-06-06 17:45:43,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:45:44,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:44,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:44,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:44,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:44,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:44,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:44,126 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 43 treesize of output 15 [2021-06-06 17:45:44,127 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:45:44,132 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:45:44,138 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:45:44,138 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:52, output treesize:7 [2021-06-06 17:45:44,173 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:45:44,173 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132020072] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:45:44,173 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:45:44,173 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 26 [2021-06-06 17:45:44,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592352279] [2021-06-06 17:45:44,174 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-06 17:45:44,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:45:44,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-06 17:45:44,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=615, Unknown=0, NotChecked=0, Total=702 [2021-06-06 17:45:44,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:45:44,175 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:45:44,175 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.111111111111111) internal successors, (57), 26 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 17:45:44,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:45:44,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:45:44,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:45:44,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:45:44,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:45:44,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:45:44,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:45:44,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:45:45,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:45:45,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:45:45,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:45:45,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:45:45,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:45:45,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:45:45,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:45:45,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:45:45,850 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:45:45,850 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:45:45,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:45:45,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1612584940, now seen corresponding path program 7 times [2021-06-06 17:45:45,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:45:45,851 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820551320] [2021-06-06 17:45:45,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:45:45,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:45:46,577 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 4 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:45:46,577 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:45:46,578 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820551320] [2021-06-06 17:45:46,578 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820551320] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:45:46,578 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946872911] [2021-06-06 17:45:46,578 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:45:46,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:45:46,626 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 50 conjunts are in the unsatisfiable core [2021-06-06 17:45:46,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:45:47,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:47,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:47,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:47,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:47,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:47,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:47,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:47,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:47,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:47,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:47,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 17 [2021-06-06 17:45:47,105 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:45:47,111 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:45:47,113 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:45:47,113 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:62, output treesize:7 [2021-06-06 17:45:47,148 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:45:47,149 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946872911] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:45:47,149 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:45:47,149 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15] total 28 [2021-06-06 17:45:47,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637286104] [2021-06-06 17:45:47,152 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-06 17:45:47,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:45:47,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-06 17:45:47,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=711, Unknown=0, NotChecked=0, Total=812 [2021-06-06 17:45:47,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:45:47,154 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:45:47,154 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.2413793103448274) internal successors, (65), 28 states have internal predecessors, (65), 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) [2021-06-06 17:45:47,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:45:47,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:45:47,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:45:47,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:45:47,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:45:47,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:45:47,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:45:47,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:45:47,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:45:48,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:45:48,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:45:48,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:45:48,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:45:48,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:45:48,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:45:48,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:45:48,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:45:48,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:45:48,972 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-06-06 17:45:48,973 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:45:48,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:45:48,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1754728536, now seen corresponding path program 8 times [2021-06-06 17:45:48,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:45:48,974 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058947479] [2021-06-06 17:45:48,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:45:48,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:45:49,750 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:45:49,750 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:45:49,750 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058947479] [2021-06-06 17:45:49,750 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058947479] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:45:49,750 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652042841] [2021-06-06 17:45:49,750 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:45:49,803 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 17:45:49,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:45:49,805 WARN L261 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 64 conjunts are in the unsatisfiable core [2021-06-06 17:45:49,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:45:50,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:50,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:50,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:50,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:50,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:50,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:50,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:50,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:50,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:50,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:50,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:50,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:50,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:50,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:50,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:50,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 19 [2021-06-06 17:45:50,420 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:45:50,429 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:45:50,431 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:45:50,431 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:85, output treesize:21 [2021-06-06 17:45:50,519 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:45:50,520 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [652042841] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:45:50,520 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:45:50,520 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 20] total 35 [2021-06-06 17:45:50,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721542348] [2021-06-06 17:45:50,520 INFO L462 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-06-06 17:45:50,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:45:50,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-06-06 17:45:50,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=1081, Unknown=0, NotChecked=0, Total=1260 [2021-06-06 17:45:50,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:45:50,522 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:45:50,522 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 2.0277777777777777) internal successors, (73), 35 states have internal predecessors, (73), 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) [2021-06-06 17:45:50,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:45:50,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:45:50,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:45:50,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:45:50,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:45:50,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:45:50,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:45:50,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:45:50,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:45:50,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:45:52,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:45:52,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:45:52,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:45:52,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:45:52,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:45:52,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:45:52,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:45:52,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:45:52,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:45:52,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:45:52,356 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:45:52,357 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:45:52,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:45:52,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1935350116, now seen corresponding path program 9 times [2021-06-06 17:45:52,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:45:52,357 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993827333] [2021-06-06 17:45:52,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:45:52,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:45:53,244 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 16 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:45:53,245 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:45:53,245 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993827333] [2021-06-06 17:45:53,245 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993827333] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:45:53,245 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2088249069] [2021-06-06 17:45:53,245 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:45:53,296 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-06-06 17:45:53,297 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:45:53,298 WARN L261 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 72 conjunts are in the unsatisfiable core [2021-06-06 17:45:53,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:45:54,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:54,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:54,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:54,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:54,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:54,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:54,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:54,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:54,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:54,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:54,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:54,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:54,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:54,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:54,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:54,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:54,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:54,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:54,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:54,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:54,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:54,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 21 [2021-06-06 17:45:54,102 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:45:54,112 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:45:54,113 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:45:54,114 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:95, output treesize:21 [2021-06-06 17:45:54,199 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:45:54,199 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2088249069] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:45:54,199 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:45:54,199 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 22] total 39 [2021-06-06 17:45:54,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504595143] [2021-06-06 17:45:54,200 INFO L462 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-06-06 17:45:54,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:45:54,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-06-06 17:45:54,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=1348, Unknown=0, NotChecked=0, Total=1560 [2021-06-06 17:45:54,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:45:54,201 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:45:54,201 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 40 states, 40 states have (on average 2.025) internal successors, (81), 39 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 17:45:54,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:45:54,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:45:54,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:45:54,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:45:54,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:45:54,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:45:54,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:45:54,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:45:54,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:45:54,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:45:54,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:45:56,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:45:56,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:45:56,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:45:56,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:45:56,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:45:56,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:45:56,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:45:56,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:45:56,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:45:56,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:45:56,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:45:56,246 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:45:56,246 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:45:56,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:45:56,247 INFO L82 PathProgramCache]: Analyzing trace with hash 186875168, now seen corresponding path program 10 times [2021-06-06 17:45:56,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:45:56,247 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476713597] [2021-06-06 17:45:56,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:45:56,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:45:57,230 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 11 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:45:57,230 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:45:57,230 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476713597] [2021-06-06 17:45:57,230 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476713597] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:45:57,230 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769728467] [2021-06-06 17:45:57,230 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:45:57,277 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 17:45:57,278 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:45:57,279 WARN L261 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 74 conjunts are in the unsatisfiable core [2021-06-06 17:45:57,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:45:58,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:58,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:58,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:58,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:58,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:58,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:58,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:58,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:58,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:58,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:58,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:58,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:58,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:58,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:58,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:58,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:58,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:58,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:58,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:58,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:58,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:58,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:58,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:58,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:58,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:58,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:58,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:58,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:58,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 23 [2021-06-06 17:45:58,156 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:45:58,160 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:45:58,161 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:45:58,162 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:92, output treesize:7 [2021-06-06 17:45:58,198 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:45:58,198 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769728467] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:45:58,198 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:45:58,198 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 21] total 40 [2021-06-06 17:45:58,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754349867] [2021-06-06 17:45:58,199 INFO L462 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-06-06 17:45:58,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:45:58,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-06-06 17:45:58,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=1472, Unknown=0, NotChecked=0, Total=1640 [2021-06-06 17:45:58,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:45:58,200 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:45:58,201 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 41 states, 41 states have (on average 2.1707317073170733) internal successors, (89), 40 states have internal predecessors, (89), 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) [2021-06-06 17:45:58,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:45:58,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:45:58,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:45:58,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:45:58,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:45:58,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:45:58,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:45:58,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:45:58,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:45:58,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:45:58,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:45:58,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:46:00,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:46:00,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:46:00,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:46:00,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:46:00,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:46:00,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:46:00,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:46:00,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:46:00,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:46:00,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:46:00,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:46:00,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:46:00,860 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-06-06 17:46:00,861 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:46:00,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:46:00,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1636752676, now seen corresponding path program 11 times [2021-06-06 17:46:00,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:46:00,861 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818540637] [2021-06-06 17:46:00,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:46:00,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:46:01,999 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 36 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:46:01,999 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:46:01,999 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818540637] [2021-06-06 17:46:01,999 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818540637] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:46:01,999 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522914440] [2021-06-06 17:46:02,000 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:46:02,046 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2021-06-06 17:46:02,047 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:46:02,048 WARN L261 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 82 conjunts are in the unsatisfiable core [2021-06-06 17:46:02,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:46:03,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:03,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 25 [2021-06-06 17:46:03,055 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:46:03,060 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:46:03,061 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:46:03,061 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:102, output treesize:7 [2021-06-06 17:46:03,090 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:46:03,090 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522914440] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:46:03,090 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:46:03,090 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 23] total 44 [2021-06-06 17:46:03,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834432608] [2021-06-06 17:46:03,091 INFO L462 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-06-06 17:46:03,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:46:03,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-06-06 17:46:03,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=1773, Unknown=0, NotChecked=0, Total=1980 [2021-06-06 17:46:03,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:46:03,092 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:46:03,092 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 45 states, 45 states have (on average 2.1555555555555554) internal successors, (97), 44 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 17:46:03,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:46:03,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:46:03,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:46:03,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:46:03,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:46:03,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:46:03,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:46:03,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:46:03,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:46:03,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:46:03,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:46:03,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:46:03,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:46:05,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:46:05,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:46:05,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:46:05,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:46:05,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:46:05,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:46:05,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:46:05,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:46:05,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:46:05,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:46:05,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:46:05,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:46:05,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-06 17:46:06,138 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-06-06 17:46:06,138 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:46:06,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:46:06,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1433602712, now seen corresponding path program 12 times [2021-06-06 17:46:06,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:46:06,139 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746658718] [2021-06-06 17:46:06,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:46:06,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:46:07,404 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 36 proven. 164 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:46:07,404 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:46:07,404 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746658718] [2021-06-06 17:46:07,405 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746658718] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:46:07,405 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375220001] [2021-06-06 17:46:07,405 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:46:07,450 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2021-06-06 17:46:07,450 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:46:07,451 WARN L261 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 97 conjunts are in the unsatisfiable core [2021-06-06 17:46:07,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:46:09,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:09,228 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:46:09,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 63 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 3 case distinctions, treesize of input 103 treesize of output 57 [2021-06-06 17:46:09,242 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-06-06 17:46:09,261 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:46:09,275 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:46:09,275 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:128, output treesize:30 [2021-06-06 17:46:09,388 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:46:09,388 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375220001] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:46:09,388 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:46:09,388 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 29] total 51 [2021-06-06 17:46:09,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829394851] [2021-06-06 17:46:09,388 INFO L462 AbstractCegarLoop]: Interpolant automaton has 52 states [2021-06-06 17:46:09,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:46:09,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-06-06 17:46:09,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=226, Invalid=2426, Unknown=0, NotChecked=0, Total=2652 [2021-06-06 17:46:09,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:46:09,390 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:46:09,390 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 52 states, 52 states have (on average 2.0) internal successors, (104), 51 states have internal predecessors, (104), 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) [2021-06-06 17:46:09,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:46:09,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:46:09,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:46:09,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:46:09,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:46:09,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:46:09,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:46:09,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:46:09,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:46:09,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:46:09,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:46:09,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:46:09,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-06 17:46:09,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:46:12,442 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2021-06-06 17:46:12,671 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 109 [2021-06-06 17:46:13,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:46:13,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:46:13,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:46:13,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:46:13,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:46:13,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:46:13,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:46:13,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:46:13,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:46:13,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:46:13,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:46:13,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:46:13,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-06 17:46:13,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-06 17:46:14,007 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-06-06 17:46:14,008 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:46:14,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:46:14,008 INFO L82 PathProgramCache]: Analyzing trace with hash 14169172, now seen corresponding path program 13 times [2021-06-06 17:46:14,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:46:14,008 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242515871] [2021-06-06 17:46:14,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:46:14,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:46:15,341 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 38 proven. 204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:46:15,341 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:46:15,341 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242515871] [2021-06-06 17:46:15,341 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242515871] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:46:15,341 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482284450] [2021-06-06 17:46:15,341 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:46:15,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:46:15,394 WARN L261 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 98 conjunts are in the unsatisfiable core [2021-06-06 17:46:15,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:46:16,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:16,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 55 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 29 [2021-06-06 17:46:16,759 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:46:16,763 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:46:16,765 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:46:16,765 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:122, output treesize:7 [2021-06-06 17:46:16,796 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:46:16,796 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482284450] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:46:16,796 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:46:16,796 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 27] total 52 [2021-06-06 17:46:16,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369384558] [2021-06-06 17:46:16,797 INFO L462 AbstractCegarLoop]: Interpolant automaton has 53 states [2021-06-06 17:46:16,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:46:16,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-06-06 17:46:16,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=264, Invalid=2492, Unknown=0, NotChecked=0, Total=2756 [2021-06-06 17:46:16,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:46:16,798 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:46:16,798 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 53 states, 53 states have (on average 2.1320754716981134) internal successors, (113), 52 states have internal predecessors, (113), 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) [2021-06-06 17:46:16,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:46:16,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:46:16,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:46:16,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:46:16,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:46:16,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:46:16,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:46:16,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:46:16,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:46:16,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:46:16,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:46:16,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:46:16,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-06 17:46:16,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-06-06 17:46:16,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:46:20,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:46:20,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:46:20,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:46:20,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:46:20,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:46:20,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:46:20,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:46:20,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:46:20,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:46:20,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:46:20,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:46:20,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:46:20,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-06 17:46:20,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-06 17:46:20,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-06 17:46:20,767 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:46:20,767 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:46:20,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:46:20,767 INFO L82 PathProgramCache]: Analyzing trace with hash -640704496, now seen corresponding path program 14 times [2021-06-06 17:46:20,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:46:20,767 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83025072] [2021-06-06 17:46:20,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:46:20,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:46:22,120 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 42 proven. 246 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:46:22,120 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:46:22,120 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83025072] [2021-06-06 17:46:22,120 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83025072] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:46:22,120 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432174361] [2021-06-06 17:46:22,120 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 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:46:22,162 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 17:46:22,163 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:46:22,164 WARN L261 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 110 conjunts are in the unsatisfiable core [2021-06-06 17:46:22,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:46:23,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:23,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 66 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 31 [2021-06-06 17:46:23,764 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:46:23,771 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:46:23,772 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:46:23,772 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:140, output treesize:18 [2021-06-06 17:46:23,856 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:46:23,856 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432174361] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:46:23,856 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:46:23,856 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 57 [2021-06-06 17:46:23,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135196829] [2021-06-06 17:46:23,857 INFO L462 AbstractCegarLoop]: Interpolant automaton has 58 states [2021-06-06 17:46:23,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:46:23,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-06-06 17:46:23,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=415, Invalid=2891, Unknown=0, NotChecked=0, Total=3306 [2021-06-06 17:46:23,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:46:23,858 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:46:23,859 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 58 states, 58 states have (on average 2.0689655172413794) internal successors, (120), 57 states have internal predecessors, (120), 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) [2021-06-06 17:46:23,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:46:23,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:46:23,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:46:23,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:46:23,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:46:23,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:46:23,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:46:23,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:46:23,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:46:23,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:46:23,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:46:23,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:46:23,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-06 17:46:23,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-06-06 17:46:23,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-06-06 17:46:23,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:46:27,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:46:27,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:46:27,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:46:27,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:46:27,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:46:27,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:46:27,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:46:27,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:46:27,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:46:27,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:46:27,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:46:27,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:46:27,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-06 17:46:27,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-06 17:46:27,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-06 17:46:27,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-06 17:46:28,058 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:46:28,058 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:46:28,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:46:28,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1107840460, now seen corresponding path program 15 times [2021-06-06 17:46:28,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:46:28,059 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37651934] [2021-06-06 17:46:28,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:46:28,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:46:29,649 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 100 proven. 238 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:46:29,650 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:46:29,650 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37651934] [2021-06-06 17:46:29,650 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37651934] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:46:29,650 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202592045] [2021-06-06 17:46:29,650 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 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:46:29,725 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2021-06-06 17:46:29,726 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:46:29,727 WARN L261 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 120 conjunts are in the unsatisfiable core [2021-06-06 17:46:29,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:46:31,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:31,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 13 select indices, 13 select index equivalence classes, 78 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 33 [2021-06-06 17:46:31,674 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:46:31,682 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:46:31,683 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:46:31,683 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:155, output treesize:21 [2021-06-06 17:46:31,786 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 0 proven. 338 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:46:31,786 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202592045] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:46:31,786 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:46:31,786 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 34] total 63 [2021-06-06 17:46:31,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216039052] [2021-06-06 17:46:31,787 INFO L462 AbstractCegarLoop]: Interpolant automaton has 64 states [2021-06-06 17:46:31,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:46:31,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-06-06 17:46:31,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=517, Invalid=3515, Unknown=0, NotChecked=0, Total=4032 [2021-06-06 17:46:31,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:46:31,788 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:46:31,789 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 64 states, 64 states have (on average 2.015625) internal successors, (129), 63 states have internal predecessors, (129), 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) [2021-06-06 17:46:31,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:46:31,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:46:31,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:46:31,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:46:31,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:46:31,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:46:31,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:46:31,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:46:31,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:46:31,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:46:31,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:46:31,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:46:31,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-06 17:46:31,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-06-06 17:46:31,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-06-06 17:46:31,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-06-06 17:46:31,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:46:34,851 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 99 [2021-06-06 17:46:36,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:46:36,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:46:36,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:46:36,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:46:36,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:46:36,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:46:36,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:46:36,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:46:36,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:46:36,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:46:36,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:46:36,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:46:36,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-06 17:46:36,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-06 17:46:36,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-06 17:46:36,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-06 17:46:36,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-06-06 17:46:36,409 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:46:36,409 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:46:36,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:46:36,410 INFO L82 PathProgramCache]: Analyzing trace with hash -2085536376, now seen corresponding path program 16 times [2021-06-06 17:46:36,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:46:36,410 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615607954] [2021-06-06 17:46:36,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:46:36,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:46:37,994 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 121 proven. 271 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:46:37,994 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:46:37,994 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615607954] [2021-06-06 17:46:37,994 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615607954] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:46:37,994 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837673293] [2021-06-06 17:46:37,994 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 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:46:38,042 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 17:46:38,042 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:46:38,044 WARN L261 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 122 conjunts are in the unsatisfiable core [2021-06-06 17:46:38,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:46:40,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:40,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 35 [2021-06-06 17:46:40,195 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:46:40,200 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:46:40,203 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:46:40,203 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:152, output treesize:7 [2021-06-06 17:46:40,242 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:46:40,243 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837673293] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:46:40,243 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:46:40,243 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 33] total 64 [2021-06-06 17:46:40,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639614720] [2021-06-06 17:46:40,243 INFO L462 AbstractCegarLoop]: Interpolant automaton has 65 states [2021-06-06 17:46:40,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:46:40,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2021-06-06 17:46:40,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=412, Invalid=3748, Unknown=0, NotChecked=0, Total=4160 [2021-06-06 17:46:40,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:46:40,245 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:46:40,245 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 65 states, 65 states have (on average 2.1076923076923078) internal successors, (137), 64 states have internal predecessors, (137), 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) [2021-06-06 17:46:40,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:46:40,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:46:40,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:46:40,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:46:40,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:46:40,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:46:40,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:46:40,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:46:40,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:46:40,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:46:40,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:46:40,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:46:40,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-06 17:46:40,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-06-06 17:46:40,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-06-06 17:46:40,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-06-06 17:46:40,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-06-06 17:46:40,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:46:45,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:46:45,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:46:45,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:46:45,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:46:45,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:46:45,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:46:45,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:46:45,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:46:45,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:46:45,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:46:45,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:46:45,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:46:45,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-06 17:46:45,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-06 17:46:45,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-06 17:46:45,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-06 17:46:45,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-06-06 17:46:45,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-06-06 17:46:45,775 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-06-06 17:46:45,775 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:46:45,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:46:45,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1854312636, now seen corresponding path program 17 times [2021-06-06 17:46:45,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:46:45,776 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393409385] [2021-06-06 17:46:45,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:46:45,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:46:47,770 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 144 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:46:47,770 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:46:47,770 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393409385] [2021-06-06 17:46:47,770 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393409385] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:46:47,770 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251816691] [2021-06-06 17:46:47,770 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 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:46:47,826 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2021-06-06 17:46:47,826 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:46:47,827 WARN L261 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 130 conjunts are in the unsatisfiable core [2021-06-06 17:46:47,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:46:50,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:50,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 15 select indices, 15 select index equivalence classes, 105 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 37 [2021-06-06 17:46:50,402 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:46:50,407 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:46:50,408 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:46:50,408 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:162, output treesize:7 [2021-06-06 17:46:50,443 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:46:50,444 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251816691] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:46:50,444 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:46:50,444 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 35] total 68 [2021-06-06 17:46:50,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816969939] [2021-06-06 17:46:50,444 INFO L462 AbstractCegarLoop]: Interpolant automaton has 69 states [2021-06-06 17:46:50,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:46:50,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2021-06-06 17:46:50,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=461, Invalid=4231, Unknown=0, NotChecked=0, Total=4692 [2021-06-06 17:46:50,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:46:50,446 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:46:50,446 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 69 states, 69 states have (on average 2.101449275362319) internal successors, (145), 68 states have internal predecessors, (145), 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) [2021-06-06 17:46:50,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:46:50,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:46:50,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:46:50,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:46:50,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:46:50,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:46:50,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:46:50,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:46:50,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:46:50,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:46:50,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:46:50,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:46:50,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-06 17:46:50,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-06-06 17:46:50,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-06-06 17:46:50,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-06-06 17:46:50,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-06-06 17:46:50,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-06-06 17:46:50,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:46:55,456 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 112 [2021-06-06 17:46:57,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:46:57,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:46:57,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:46:57,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:46:57,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:46:57,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:46:57,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:46:57,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:46:57,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:46:57,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:46:57,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:46:57,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:46:57,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-06 17:46:57,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-06 17:46:57,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-06 17:46:57,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-06 17:46:57,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-06-06 17:46:57,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-06-06 17:46:57,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-06-06 17:46:57,220 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-06-06 17:46:57,221 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:46:57,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:46:57,221 INFO L82 PathProgramCache]: Analyzing trace with hash -963648768, now seen corresponding path program 18 times [2021-06-06 17:46:57,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:46:57,221 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513738573] [2021-06-06 17:46:57,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:46:57,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:46:59,240 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 169 proven. 343 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:46:59,240 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:46:59,240 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513738573] [2021-06-06 17:46:59,240 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513738573] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:46:59,241 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266876173] [2021-06-06 17:46:59,241 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 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:46:59,302 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s) [2021-06-06 17:46:59,302 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:46:59,307 WARN L261 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 140 conjunts are in the unsatisfiable core [2021-06-06 17:46:59,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:49:10,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:10,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:10,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:10,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:10,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:10,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:10,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:10,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:10,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:10,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:10,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:10,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:10,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:10,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:10,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:10,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:10,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:10,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:10,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:10,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:10,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:10,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:10,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:10,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:10,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:11,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:12,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:12,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:12,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:12,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:12,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:12,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:12,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:12,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:12,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:12,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:12,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:49:12,247 INFO L244 Elim1Store]: Index analysis took 1685 ms [2021-06-06 17:49:17,698 WARN L205 SmtUtils]: Spent 5.45 s on a formula simplification that was a NOOP. DAG size: 476 [2021-06-06 17:49:17,699 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:49:17,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 20 select indices, 20 select index equivalence classes, 84 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 106 case distinctions, treesize of input 159 treesize of output 1237 [2021-06-06 17:49:17,921 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 444 DAG size of output: 406 [2021-06-06 17:49:18,105 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 462 DAG size of output: 425 [2021-06-06 17:49:19,537 WARN L205 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 1991 DAG size of output: 1234 [2021-06-06 17:49:20,804 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 2030 DAG size of output: 1273 [2021-06-06 17:49:38,788 WARN L205 SmtUtils]: Spent 16.81 s on a formula simplification. DAG size of input: 7832 DAG size of output: 6605 [2021-06-06 17:49:56,802 WARN L205 SmtUtils]: Spent 17.63 s on a formula simplification. DAG size of input: 7856 DAG size of output: 6630 [2021-06-06 17:52:40,154 WARN L205 SmtUtils]: Spent 2.60 m on a formula simplification. DAG size of input: 46385 DAG size of output: 30733 [2021-06-06 17:55:27,391 WARN L205 SmtUtils]: Spent 2.76 m on a formula simplification. DAG size of input: 46424 DAG size of output: 30773 [2021-06-06 17:55:55,461 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 125 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown