/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-Random521.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dec-subseq.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-06 22:49:44,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-06 22:49:44,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-06 22:49:44,214 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-06 22:49:44,266 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-Random521.epf [2021-06-06 22:49:44,300 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-06 22:49:44,300 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-06 22:49:44,301 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-06 22:49:44,301 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-06 22:49:44,303 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-06 22:49:44,303 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-06 22:49:44,303 INFO L138 SettingsManager]: * Use SBE=true [2021-06-06 22:49:44,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-06 22:49:44,304 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-06 22:49:44,304 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-06 22:49:44,305 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-06 22:49:44,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-06 22:49:44,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-06 22:49:44,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-06 22:49:44,305 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-06 22:49:44,305 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-06 22:49:44,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-06 22:49:44,306 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-06 22:49:44,306 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-06 22:49:44,306 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-06 22:49:44,306 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-06 22:49:44,306 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-06 22:49:44,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-06 22:49:44,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 22:49:44,307 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-06 22:49:44,307 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-06 22:49:44,307 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-06 22:49:44,307 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-06 22:49:44,307 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-06 22:49:44,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-06 22:49:44,308 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-06 22:49:44,308 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-06 22:49:44,308 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-06 22:49:44,308 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-06 22:49:44,308 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-06 22:49:44,308 INFO L138 SettingsManager]: * Random seed used by POR DFS order=521 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-06 22:49:44,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-06 22:49:44,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-06 22:49:44,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-06 22:49:44,635 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-06 22:49:44,636 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-06 22:49:44,637 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dec-subseq.wvr.bpl [2021-06-06 22:49:44,637 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dec-subseq.wvr.bpl' [2021-06-06 22:49:44,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-06 22:49:44,666 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-06 22:49:44,667 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-06 22:49:44,667 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-06 22:49:44,667 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-06 22:49:44,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:49:44" (1/1) ... [2021-06-06 22:49:44,685 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:49:44" (1/1) ... [2021-06-06 22:49:44,692 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-06 22:49:44,693 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-06 22:49:44,693 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-06 22:49:44,694 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-06 22:49:44,700 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:49:44" (1/1) ... [2021-06-06 22:49:44,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:49:44" (1/1) ... [2021-06-06 22:49:44,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:49:44" (1/1) ... [2021-06-06 22:49:44,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:49:44" (1/1) ... [2021-06-06 22:49:44,706 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:49:44" (1/1) ... [2021-06-06 22:49:44,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:49:44" (1/1) ... [2021-06-06 22:49:44,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:49:44" (1/1) ... [2021-06-06 22:49:44,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-06 22:49:44,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-06 22:49:44,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-06 22:49:44,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-06 22:49:44,715 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:49:44" (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 22:49:44,788 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-06 22:49:44,788 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-06 22:49:44,788 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-06 22:49:44,788 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-06 22:49:44,789 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-06 22:49:44,789 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-06 22:49:44,789 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-06 22:49:44,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-06 22:49:44,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-06 22:49:44,790 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 22:49:45,030 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-06 22:49:45,030 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-06 22:49:45,032 INFO L202 PluginConnector]: Adding new model dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 10:49:45 BoogieIcfgContainer [2021-06-06 22:49:45,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-06 22:49:45,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-06 22:49:45,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-06 22:49:45,036 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-06 22:49:45,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:49:44" (1/2) ... [2021-06-06 22:49:45,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a3cd58a and model type dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.06 10:49:45, skipping insertion in model container [2021-06-06 22:49:45,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 10:49:45" (2/2) ... [2021-06-06 22:49:45,038 INFO L111 eAbstractionObserver]: Analyzing ICFG dec-subseq.wvr.bpl [2021-06-06 22:49:45,059 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-06 22:49:45,059 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-06 22:49:45,059 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-06 22:49:45,060 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-06 22:49:45,104 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-06 22:49:45,122 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-06 22:49:45,179 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-06 22:49:45,179 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-06 22:49:45,179 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-06 22:49:45,179 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-06 22:49:45,179 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-06 22:49:45,179 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-06 22:49:45,179 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-06 22:49:45,179 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-06 22:49:45,205 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 22:49:45,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 22:49:45,210 INFO L82 PathProgramCache]: Analyzing trace with hash 972027343, now seen corresponding path program 1 times [2021-06-06 22:49:45,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 22:49:45,217 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297818353] [2021-06-06 22:49:45,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 22:49:45,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:49:45,314 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 22:49:45,315 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 22:49:45,315 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297818353] [2021-06-06 22:49:45,315 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297818353] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 22:49:45,316 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 22:49:45,316 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-06 22:49:45,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219096473] [2021-06-06 22:49:45,320 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-06 22:49:45,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 22:49:45,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-06 22:49:45,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-06 22:49:45,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:49:45,333 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 22:49:45,334 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 22:49:45,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:49:45,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 22:49:45,346 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-06 22:49:45,346 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 22:49:45,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 22:49:45,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1852903020, now seen corresponding path program 1 times [2021-06-06 22:49:45,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 22:49:45,347 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212961308] [2021-06-06 22:49:45,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 22:49:45,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:49:45,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 22:49:45,392 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 22:49:45,392 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212961308] [2021-06-06 22:49:45,392 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212961308] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 22:49:45,393 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 22:49:45,393 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-06 22:49:45,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797850956] [2021-06-06 22:49:45,394 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-06 22:49:45,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 22:49:45,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-06 22:49:45,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-06 22:49:45,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:49:45,395 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 22:49:45,396 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 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 22:49:45,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 22:49:45,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:49:45,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 22:49:45,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:49:45,484 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-06 22:49:45,484 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 22:49:45,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 22:49:45,485 INFO L82 PathProgramCache]: Analyzing trace with hash 985208118, now seen corresponding path program 1 times [2021-06-06 22:49:45,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 22:49:45,485 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609618642] [2021-06-06 22:49:45,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 22:49:45,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:49:45,614 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 22:49:45,614 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 22:49:45,614 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609618642] [2021-06-06 22:49:45,615 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609618642] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:49:45,615 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286316642] [2021-06-06 22:49:45,615 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 22:49:45,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:49:45,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-06 22:49:45,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 22:49:45,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-06-06 22:49:45,879 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 22:49:45,883 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:49:45,884 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 22:49:45,885 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:7 [2021-06-06 22:49:45,905 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 22:49:45,908 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 22:49:45,911 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:49:45,912 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 22:49:45,912 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2021-06-06 22:49:45,933 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 22:49:45,933 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286316642] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:49:45,933 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 22:49:45,933 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 11 [2021-06-06 22:49:45,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76113862] [2021-06-06 22:49:45,934 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-06 22:49:45,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 22:49:45,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-06 22:49:45,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-06-06 22:49:45,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:49:45,936 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 22:49:45,936 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 11 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 22:49:45,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 22:49:45,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:49:45,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:49:46,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 22:49:46,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:49:46,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 22:49:46,272 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 22:49:46,273 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 22:49:46,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 22:49:46,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1656872365, now seen corresponding path program 2 times [2021-06-06 22:49:46,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 22:49:46,274 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137328175] [2021-06-06 22:49:46,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 22:49:46,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:49:46,353 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 22:49:46,354 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 22:49:46,354 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137328175] [2021-06-06 22:49:46,354 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137328175] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:49:46,354 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [54307901] [2021-06-06 22:49:46,354 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 22:49:46,390 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 22:49:46,390 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 22:49:46,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-06 22:49:46,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 22:49:46,498 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 22:49:46,498 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [54307901] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:49:46,498 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 22:49:46,498 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3] total 6 [2021-06-06 22:49:46,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504386999] [2021-06-06 22:49:46,499 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-06 22:49:46,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 22:49:46,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-06 22:49:46,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-06-06 22:49:46,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:49:46,500 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 22:49:46,500 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 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 22:49:46,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 22:49:46,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:49:46,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 22:49:46,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:49:46,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 22:49:46,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:49:46,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 22:49:46,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 22:49:46,792 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 22:49:46,793 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 22:49:46,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 22:49:46,793 INFO L82 PathProgramCache]: Analyzing trace with hash 226179487, now seen corresponding path program 3 times [2021-06-06 22:49:46,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 22:49:46,794 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515935508] [2021-06-06 22:49:46,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 22:49:46,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:49:47,084 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-06 22:49:47,084 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 22:49:47,084 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515935508] [2021-06-06 22:49:47,084 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515935508] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:49:47,085 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44913742] [2021-06-06 22:49:47,085 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 22:49:47,123 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-06 22:49:47,123 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 22:49:47,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 22 conjunts are in the unsatisfiable core [2021-06-06 22:49:47,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 22:49:47,548 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:49:47,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 24 [2021-06-06 22:49:47,555 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 22:49:47,561 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:49:47,562 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-06 22:49:47,563 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:30, output treesize:16 [2021-06-06 22:49:47,644 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:49:47,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 38 [2021-06-06 22:49:47,681 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-06-06 22:49:47,692 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:49:47,700 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 22:49:47,701 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:21 [2021-06-06 22:49:47,791 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 22:49:47,791 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44913742] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:49:47,791 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 22:49:47,792 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 25 [2021-06-06 22:49:47,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283831287] [2021-06-06 22:49:47,792 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-06 22:49:47,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 22:49:47,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-06 22:49:47,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=524, Unknown=0, NotChecked=0, Total=650 [2021-06-06 22:49:47,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:49:47,794 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 22:49:47,795 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.076923076923077) internal successors, (54), 25 states have internal predecessors, (54), 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 22:49:47,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 22:49:47,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:49:47,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 22:49:47,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 22:49:47,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:49:48,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 22:49:48,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:49:48,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 22:49:48,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 22:49:48,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-06 22:49:49,131 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 22:49:49,131 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 22:49:49,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 22:49:49,132 INFO L82 PathProgramCache]: Analyzing trace with hash 602764687, now seen corresponding path program 4 times [2021-06-06 22:49:49,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 22:49:49,132 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236472422] [2021-06-06 22:49:49,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 22:49:49,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:49:49,479 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-06-06 22:49:49,479 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 22:49:49,479 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236472422] [2021-06-06 22:49:49,479 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236472422] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:49:49,479 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790989575] [2021-06-06 22:49:49,480 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 22:49:49,551 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 22:49:49,551 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 22:49:49,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 47 conjunts are in the unsatisfiable core [2021-06-06 22:49:49,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 22:49:50,574 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:49:50,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 86 [2021-06-06 22:49:50,587 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 22:49:50,677 INFO L628 ElimStorePlain]: treesize reduction 75, result has 66.5 percent of original size [2021-06-06 22:49:50,713 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-06 22:49:50,714 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:76, output treesize:76 [2021-06-06 22:49:51,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:49:51,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:49:51,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:49:51,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:49:51,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:49:51,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:49:51,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:49:51,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:49:51,028 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:49:51,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:49:51,030 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:49:51,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-06-06 22:49:51,032 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 22:49:51,038 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:49:51,039 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 22:49:51,040 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:57, output treesize:5 [2021-06-06 22:49:51,055 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 21 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 22:49:51,055 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1790989575] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:49:51,056 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 22:49:51,056 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 26] total 38 [2021-06-06 22:49:51,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120798702] [2021-06-06 22:49:51,056 INFO L462 AbstractCegarLoop]: Interpolant automaton has 39 states [2021-06-06 22:49:51,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 22:49:51,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-06-06 22:49:51,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=1274, Unknown=0, NotChecked=0, Total=1482 [2021-06-06 22:49:51,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:49:51,058 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 22:49:51,058 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 39 states, 39 states have (on average 1.8717948717948718) internal successors, (73), 38 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 22:49:51,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 22:49:51,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:49:51,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 22:49:51,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 22:49:51,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-06 22:49:51,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:49:52,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 22:49:52,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:49:52,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 22:49:52,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 22:49:52,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-06 22:49:52,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 22:49:52,856 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 22:49:52,857 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 22:49:52,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 22:49:52,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1987684560, now seen corresponding path program 5 times [2021-06-06 22:49:52,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 22:49:52,857 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485983014] [2021-06-06 22:49:52,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 22:49:52,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:49:53,477 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 79 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-06-06 22:49:53,477 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 22:49:53,477 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485983014] [2021-06-06 22:49:53,477 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485983014] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:49:53,477 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288875578] [2021-06-06 22:49:53,477 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 22:49:53,517 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-06-06 22:49:53,517 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 22:49:53,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 57 conjunts are in the unsatisfiable core [2021-06-06 22:49:53,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 22:49:54,759 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:49:54,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 72 treesize of output 126 [2021-06-06 22:49:54,774 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 22:49:54,920 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 68 [2021-06-06 22:49:54,921 INFO L628 ElimStorePlain]: treesize reduction 145, result has 58.6 percent of original size [2021-06-06 22:49:54,964 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-06 22:49:54,964 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:90, output treesize:61 [2021-06-06 22:49:55,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:49:55,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:49:55,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:49:55,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:49:55,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:49:55,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:49:55,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:49:55,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:49:55,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:49:55,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:49:55,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:49:55,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:49:55,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:49:55,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:49:55,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:49:55,493 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:49:55,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:49:55,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:49:55,495 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:49:55,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 19 [2021-06-06 22:49:55,500 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 22:49:55,507 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:49:55,508 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 22:49:55,508 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:62, output treesize:5 [2021-06-06 22:49:55,522 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 21 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 22:49:55,523 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288875578] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:49:55,523 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 22:49:55,523 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 32] total 51 [2021-06-06 22:49:55,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545328854] [2021-06-06 22:49:55,526 INFO L462 AbstractCegarLoop]: Interpolant automaton has 52 states [2021-06-06 22:49:55,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 22:49:55,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-06-06 22:49:55,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=293, Invalid=2359, Unknown=0, NotChecked=0, Total=2652 [2021-06-06 22:49:55,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:49:55,528 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 22:49:55,528 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 52 states, 52 states have (on average 1.75) internal successors, (91), 51 states have internal predecessors, (91), 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 22:49:55,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 22:49:55,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:49:55,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 22:49:55,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 22:49:55,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-06 22:49:55,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 22:49:55,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:49:57,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 22:49:57,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:49:57,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 22:49:57,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 22:49:57,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-06 22:49:57,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 22:49:57,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-06-06 22:49:58,012 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 22:49:58,013 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 22:49:58,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 22:49:58,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1616302855, now seen corresponding path program 6 times [2021-06-06 22:49:58,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 22:49:58,013 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094764904] [2021-06-06 22:49:58,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 22:49:58,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:49:58,700 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-06-06 22:49:58,700 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 22:49:58,701 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094764904] [2021-06-06 22:49:58,701 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094764904] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:49:58,701 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169553919] [2021-06-06 22:49:58,701 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 22:49:58,741 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-06-06 22:49:58,741 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 22:49:58,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 71 conjunts are in the unsatisfiable core [2021-06-06 22:49:58,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 22:50:00,245 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:50:00,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 88 treesize of output 176 [2021-06-06 22:50:00,271 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 22:50:00,425 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 86 [2021-06-06 22:50:00,425 INFO L628 ElimStorePlain]: treesize reduction 220, result has 55.5 percent of original size [2021-06-06 22:50:00,484 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 22:50:00,485 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:96, output treesize:60 [2021-06-06 22:50:02,060 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 64 [2021-06-06 22:50:02,060 INFO L354 Elim1Store]: treesize reduction 112, result has 51.1 percent of original size [2021-06-06 22:50:02,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 62 treesize of output 138 [2021-06-06 22:50:03,028 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 214 [2021-06-06 22:50:03,954 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 248 [2021-06-06 22:50:04,131 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 306 DAG size of output: 276 [2021-06-06 22:50:04,285 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 306 DAG size of output: 276 [2021-06-06 22:50:04,463 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 280 [2021-06-06 22:50:05,322 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 259 [2021-06-06 22:50:05,526 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 306 [2021-06-06 22:50:05,725 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 306 [2021-06-06 22:50:05,974 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 351 DAG size of output: 304 [2021-06-06 22:50:06,640 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 5 xjuncts. [2021-06-06 22:50:06,733 INFO L628 ElimStorePlain]: treesize reduction 621, result has 3.9 percent of original size [2021-06-06 22:50:06,737 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 22:50:06,737 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:71, output treesize:21 [2021-06-06 22:50:06,917 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2021-06-06 22:50:07,033 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 22:50:07,033 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169553919] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:50:07,033 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 22:50:07,033 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 39] total 68 [2021-06-06 22:50:07,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67090598] [2021-06-06 22:50:07,034 INFO L462 AbstractCegarLoop]: Interpolant automaton has 69 states [2021-06-06 22:50:07,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 22:50:07,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2021-06-06 22:50:07,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=444, Invalid=4248, Unknown=0, NotChecked=0, Total=4692 [2021-06-06 22:50:07,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:50:07,036 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 22:50:07,037 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 69 states, 69 states have (on average 1.6521739130434783) internal successors, (114), 68 states have internal predecessors, (114), 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 22:50:07,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 22:50:07,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:50:07,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 22:50:07,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 22:50:07,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-06 22:50:07,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 22:50:07,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-06-06 22:50:07,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:50:12,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 22:50:12,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:50:12,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 22:50:12,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 22:50:12,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-06 22:50:12,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 22:50:12,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-06-06 22:50:12,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-06-06 22:50:12,323 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2021-06-06 22:50:12,323 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 22:50:12,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 22:50:12,324 INFO L82 PathProgramCache]: Analyzing trace with hash -882199117, now seen corresponding path program 7 times [2021-06-06 22:50:12,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 22:50:12,324 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903097576] [2021-06-06 22:50:12,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 22:50:12,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:50:13,407 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 223 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-06-06 22:50:13,407 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 22:50:13,407 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903097576] [2021-06-06 22:50:13,407 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903097576] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:50:13,407 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959708232] [2021-06-06 22:50:13,407 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 22:50:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:50:13,451 WARN L261 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 95 conjunts are in the unsatisfiable core [2021-06-06 22:50:13,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 22:50:30,510 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-06-06 22:50:49,350 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-06-06 22:50:49,512 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-06-06 22:50:49,512 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:50:49,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 122 treesize of output 302 [2021-06-06 22:50:49,568 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 22:50:50,129 WARN L205 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 164 [2021-06-06 22:50:50,129 INFO L628 ElimStorePlain]: treesize reduction 390, result has 59.4 percent of original size [2021-06-06 22:50:50,327 INFO L550 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-06 22:50:50,327 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 10 variables, input treesize:140, output treesize:143 [2021-06-06 22:50:52,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,162 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:50:52,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,166 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:50:52,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:50:52,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 28 disjoint index pairs (out of 45 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 28 [2021-06-06 22:50:52,171 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 22:50:52,178 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:50:52,180 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 22:50:52,180 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:101, output treesize:5 [2021-06-06 22:50:52,193 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 45 proven. 223 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 22:50:52,194 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959708232] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:50:52,194 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 22:50:52,194 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 50] total 83 [2021-06-06 22:50:52,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489875292] [2021-06-06 22:50:52,194 INFO L462 AbstractCegarLoop]: Interpolant automaton has 84 states [2021-06-06 22:50:52,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 22:50:52,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2021-06-06 22:50:52,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=574, Invalid=6396, Unknown=2, NotChecked=0, Total=6972 [2021-06-06 22:50:52,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:50:52,197 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 22:50:52,197 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 84 states, 84 states have (on average 1.619047619047619) internal successors, (136), 83 states have internal predecessors, (136), 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 22:50:52,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 22:50:52,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:50:52,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 22:50:52,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 22:50:52,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-06 22:50:52,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 22:50:52,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-06-06 22:50:52,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-06-06 22:50:52,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:50:57,516 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2021-06-06 22:51:09,887 WARN L227 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2021-06-06 22:51:10,090 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable667 [2021-06-06 22:51:10,091 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkValidity(IncrementalHoareTripleChecker.java:676) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkInternal(IncrementalHoareTripleChecker.java:143) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ProtectiveHoareTripleChecker.checkInternal(ProtectiveHoareTripleChecker.java:61) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.EfficientHoareTripleChecker.checkInternal(EfficientHoareTripleChecker.java:63) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:357) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.addOtherSuccessors(DeterministicInterpolantAutomaton.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:200) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SleepSetDelayReduction.search(SleepSetDelayReduction.java:183) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SleepSetDelayReduction.(SleepSetDelayReduction.java:111) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isAbstractionEmpty(PartialOrderCegarLoop.java:209) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:509) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:374) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:364) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:293) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:238) ... 42 more [2021-06-06 22:51:10,095 INFO L168 Benchmark]: Toolchain (without parser) took 85429.14 ms. Allocated memory was 394.3 MB in the beginning and 851.4 MB in the end (delta: 457.2 MB). Free memory was 373.5 MB in the beginning and 362.5 MB in the end (delta: 11.0 MB). Peak memory consumption was 471.6 MB. Max. memory is 16.0 GB. [2021-06-06 22:51:10,095 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 394.3 MB. Free memory is still 374.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-06 22:51:10,095 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.66 ms. Allocated memory is still 394.3 MB. Free memory was 373.3 MB in the beginning and 372.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-06 22:51:10,095 INFO L168 Benchmark]: Boogie Preprocessor took 18.71 ms. Allocated memory is still 394.3 MB. Free memory was 371.8 MB in the beginning and 371.0 MB in the end (delta: 850.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-06 22:51:10,095 INFO L168 Benchmark]: RCFGBuilder took 318.51 ms. Allocated memory is still 394.3 MB. Free memory was 370.8 MB in the beginning and 358.0 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-06-06 22:51:10,095 INFO L168 Benchmark]: TraceAbstraction took 85060.77 ms. Allocated memory was 394.3 MB in the beginning and 851.4 MB in the end (delta: 457.2 MB). Free memory was 357.6 MB in the beginning and 362.5 MB in the end (delta: -4.9 MB). Peak memory consumption was 454.9 MB. Max. memory is 16.0 GB. [2021-06-06 22:51:10,096 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 394.3 MB. Free memory is still 374.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 25.66 ms. Allocated memory is still 394.3 MB. Free memory was 373.3 MB in the beginning and 372.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 18.71 ms. Allocated memory is still 394.3 MB. Free memory was 371.8 MB in the beginning and 371.0 MB in the end (delta: 850.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 318.51 ms. Allocated memory is still 394.3 MB. Free memory was 370.8 MB in the beginning and 358.0 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 85060.77 ms. Allocated memory was 394.3 MB in the beginning and 851.4 MB in the end (delta: 457.2 MB). Free memory was 357.6 MB in the beginning and 362.5 MB in the end (delta: -4.9 MB). Peak memory consumption was 454.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...