/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-17 07:21:24,690 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-17 07:21:24,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-17 07:21:24,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-17 07:21:24,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-17 07:21:24,751 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-17 07:21:24,752 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-17 07:21:24,753 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-17 07:21:24,753 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-17 07:21:24,754 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-17 07:21:24,755 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-17 07:21:24,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-17 07:21:24,773 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-17 07:21:24,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-17 07:21:24,779 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-17 07:21:24,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-17 07:21:24,786 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-17 07:21:24,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-17 07:21:24,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-17 07:21:24,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-17 07:21:24,798 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf [2021-06-17 07:21:24,851 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-17 07:21:24,851 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-17 07:21:24,851 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-17 07:21:24,852 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-17 07:21:24,852 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-17 07:21:24,852 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-17 07:21:24,853 INFO L138 SettingsManager]: * Use SBE=true [2021-06-17 07:21:24,853 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-17 07:21:24,853 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-17 07:21:24,853 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-17 07:21:24,853 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-17 07:21:24,853 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-17 07:21:24,853 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-17 07:21:24,853 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-17 07:21:24,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-17 07:21:24,854 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-17 07:21:24,854 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-17 07:21:24,854 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-17 07:21:24,854 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-17 07:21:24,854 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-17 07:21:24,854 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-17 07:21:24,854 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-17 07:21:24,854 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-17 07:21:24,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-17 07:21:24,855 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-17 07:21:24,855 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-17 07:21:24,855 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-17 07:21:24,855 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-17 07:21:24,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-17 07:21:24,855 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-17 07:21:24,855 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-17 07:21:24,855 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-17 07:21:24,855 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-06-17 07:21:24,855 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-17 07:21:25,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-17 07:21:25,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-17 07:21:25,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-17 07:21:25,127 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-17 07:21:25,128 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-17 07:21:25,129 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-array.wvr.bpl [2021-06-17 07:21:25,129 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-array.wvr.bpl' [2021-06-17 07:21:25,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-17 07:21:25,159 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-17 07:21:25,160 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-17 07:21:25,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-17 07:21:25,161 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-17 07:21:25,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 07:21:25" (1/1) ... [2021-06-17 07:21:25,175 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 07:21:25" (1/1) ... [2021-06-17 07:21:25,180 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-17 07:21:25,181 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-17 07:21:25,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-17 07:21:25,181 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-17 07:21:25,186 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 07:21:25" (1/1) ... [2021-06-17 07:21:25,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 07:21:25" (1/1) ... [2021-06-17 07:21:25,187 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 07:21:25" (1/1) ... [2021-06-17 07:21:25,187 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 07:21:25" (1/1) ... [2021-06-17 07:21:25,188 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 07:21:25" (1/1) ... [2021-06-17 07:21:25,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 07:21:25" (1/1) ... [2021-06-17 07:21:25,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 07:21:25" (1/1) ... [2021-06-17 07:21:25,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-17 07:21:25,192 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-17 07:21:25,192 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-17 07:21:25,192 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-17 07:21:25,209 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 07:21:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-17 07:21:25,254 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-17 07:21:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-17 07:21:25,254 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-17 07:21:25,254 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-17 07:21:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-17 07:21:25,254 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-17 07:21:25,254 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-17 07:21:25,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-17 07:21:25,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-17 07:21:25,255 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-17 07:21:25,255 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-17 07:21:25,255 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-17 07:21:25,255 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-17 07:21:25,452 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-17 07:21:25,452 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-17 07:21:25,453 INFO L202 PluginConnector]: Adding new model max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 07:21:25 BoogieIcfgContainer [2021-06-17 07:21:25,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-17 07:21:25,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-17 07:21:25,455 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-17 07:21:25,457 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-17 07:21:25,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 07:21:25" (1/2) ... [2021-06-17 07:21:25,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e928c3 and model type max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.06 07:21:25, skipping insertion in model container [2021-06-17 07:21:25,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 07:21:25" (2/2) ... [2021-06-17 07:21:25,459 INFO L111 eAbstractionObserver]: Analyzing ICFG max-array.wvr.bpl [2021-06-17 07:21:25,462 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-17 07:21:25,462 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-17 07:21:25,462 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-17 07:21:25,463 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-17 07:21:25,521 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-17 07:21:25,535 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-17 07:21:25,655 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-17 07:21:25,655 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-17 07:21:25,656 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-17 07:21:25,656 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-17 07:21:25,657 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-17 07:21:25,657 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-17 07:21:25,657 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-17 07:21:25,657 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-17 07:21:25,801 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 07:21:25,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 07:21:25,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1399820781, now seen corresponding path program 1 times [2021-06-17 07:21:25,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 07:21:25,825 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645177830] [2021-06-17 07:21:25,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 07:21:25,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:21:25,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:21:25,997 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 07:21:25,997 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645177830] [2021-06-17 07:21:25,997 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645177830] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 07:21:25,998 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 07:21:25,998 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-17 07:21:25,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236349113] [2021-06-17 07:21:26,001 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-17 07:21:26,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 07:21:26,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-17 07:21:26,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-17 07:21:26,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:21:26,011 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 07:21:26,012 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.0) 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) [2021-06-17 07:21:26,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:21:26,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:21:26,057 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-17 07:21:26,057 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 07:21:26,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 07:21:26,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1882321483, now seen corresponding path program 1 times [2021-06-17 07:21:26,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 07:21:26,061 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827219689] [2021-06-17 07:21:26,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 07:21:26,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:21:26,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 07:21:26,126 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 07:21:26,126 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827219689] [2021-06-17 07:21:26,126 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827219689] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 07:21:26,127 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 07:21:26,127 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-17 07:21:26,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835621181] [2021-06-17 07:21:26,128 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-17 07:21:26,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 07:21:26,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-17 07:21:26,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-17 07:21:26,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:21:26,131 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 07:21:26,131 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 07:21:26,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:21:26,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:21:26,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:21:26,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:21:26,192 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-17 07:21:26,192 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 07:21:26,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 07:21:26,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1166833961, now seen corresponding path program 1 times [2021-06-17 07:21:26,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 07:21:26,193 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271360286] [2021-06-17 07:21:26,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 07:21:26,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:21:26,542 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:21:26,542 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 07:21:26,542 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271360286] [2021-06-17 07:21:26,542 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271360286] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:21:26,543 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661082181] [2021-06-17 07:21:26,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 07:21:26,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:21:26,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-17 07:21:26,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 07:21:26,856 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 16 treesize of output 10 [2021-06-17 07:21:26,857 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:26,860 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 16 treesize of output 10 [2021-06-17 07:21:26,861 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:26,863 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 21 treesize of output 13 [2021-06-17 07:21:26,864 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:26,872 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:21:26,874 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-17 07:21:26,875 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:91, output treesize:15 [2021-06-17 07:21:26,902 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:21:26,902 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661082181] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:21:26,902 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 07:21:26,902 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-06-17 07:21:26,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457659502] [2021-06-17 07:21:26,903 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-17 07:21:26,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 07:21:26,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-17 07:21:26,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-06-17 07:21:26,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:21:26,903 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 07:21:26,903 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 07:21:26,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:21:26,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:21:26,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:21:27,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:21:27,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:21:27,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:21:27,230 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 07:21:27,230 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 07:21:27,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 07:21:27,230 INFO L82 PathProgramCache]: Analyzing trace with hash 2135652999, now seen corresponding path program 2 times [2021-06-17 07:21:27,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 07:21:27,231 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760938573] [2021-06-17 07:21:27,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 07:21:27,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:21:27,276 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:21:27,276 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 07:21:27,276 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760938573] [2021-06-17 07:21:27,276 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760938573] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:21:27,276 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045241334] [2021-06-17 07:21:27,276 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 07:21:27,305 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 07:21:27,305 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 07:21:27,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-17 07:21:27,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 07:21:27,399 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:21:27,399 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045241334] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:21:27,399 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 07:21:27,400 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-06-17 07:21:27,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141517774] [2021-06-17 07:21:27,400 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-17 07:21:27,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 07:21:27,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-17 07:21:27,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-06-17 07:21:27,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:21:27,401 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 07:21:27,401 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 07:21:27,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:21:27,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:21:27,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:21:27,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:21:27,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:21:27,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:21:27,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:21:27,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:21:27,766 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 07:21:27,767 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 07:21:27,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 07:21:27,767 INFO L82 PathProgramCache]: Analyzing trace with hash -357408053, now seen corresponding path program 1 times [2021-06-17 07:21:27,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 07:21:27,767 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783326602] [2021-06-17 07:21:27,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 07:21:27,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:21:27,813 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 07:21:27,814 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 07:21:27,814 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783326602] [2021-06-17 07:21:27,814 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783326602] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:21:27,814 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255451083] [2021-06-17 07:21:27,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 07:21:27,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:21:27,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-17 07:21:27,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 07:21:28,002 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 07:21:28,002 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255451083] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:21:28,002 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 07:21:28,002 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-06-17 07:21:28,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267620519] [2021-06-17 07:21:28,003 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-17 07:21:28,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 07:21:28,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-17 07:21:28,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-06-17 07:21:28,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:21:28,003 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 07:21:28,003 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 07:21:28,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:21:28,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:21:28,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:21:28,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:21:28,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:21:28,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:21:28,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:21:28,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:21:28,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:21:28,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 07:21:28,308 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 07:21:28,309 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 07:21:28,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 07:21:28,309 INFO L82 PathProgramCache]: Analyzing trace with hash -336173655, now seen corresponding path program 2 times [2021-06-17 07:21:28,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 07:21:28,309 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954081615] [2021-06-17 07:21:28,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 07:21:28,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:21:28,701 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-06-17 07:21:28,823 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-17 07:21:28,966 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:21:28,966 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 07:21:28,966 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954081615] [2021-06-17 07:21:28,966 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954081615] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:21:28,966 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280596569] [2021-06-17 07:21:28,966 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 07:21:28,998 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 07:21:28,998 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 07:21:28,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 37 conjunts are in the unsatisfiable core [2021-06-17 07:21:29,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 07:21:30,094 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-06-17 07:21:31,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:31,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:31,845 INFO L354 Elim1Store]: treesize reduction 14, result has 68.9 percent of original size [2021-06-17 07:21:31,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 52 [2021-06-17 07:21:31,854 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:31,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:31,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:31,942 INFO L354 Elim1Store]: treesize reduction 18, result has 60.0 percent of original size [2021-06-17 07:21:31,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 48 [2021-06-17 07:21:31,948 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:33,394 WARN L205 SmtUtils]: Spent 1.45 s on a formula simplification that was a NOOP. DAG size: 344 [2021-06-17 07:21:33,394 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:21:33,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:33,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:33,474 INFO L354 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2021-06-17 07:21:33,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 35 treesize of output 37 [2021-06-17 07:21:33,479 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:33,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:33,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:33,566 INFO L354 Elim1Store]: treesize reduction 16, result has 64.4 percent of original size [2021-06-17 07:21:33,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 40 treesize of output 50 [2021-06-17 07:21:33,571 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:35,052 WARN L205 SmtUtils]: Spent 1.48 s on a formula simplification that was a NOOP. DAG size: 333 [2021-06-17 07:21:35,052 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:21:35,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:35,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:35,133 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:21:35,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 28 treesize of output 60 [2021-06-17 07:21:35,151 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:35,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:35,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:35,214 INFO L354 Elim1Store]: treesize reduction 32, result has 28.9 percent of original size [2021-06-17 07:21:35,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 31 [2021-06-17 07:21:35,217 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:36,639 WARN L205 SmtUtils]: Spent 1.42 s on a formula simplification that was a NOOP. DAG size: 319 [2021-06-17 07:21:36,640 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:21:36,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:36,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:36,731 INFO L354 Elim1Store]: treesize reduction 28, result has 37.8 percent of original size [2021-06-17 07:21:36,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 48 treesize of output 38 [2021-06-17 07:21:36,734 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:36,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:36,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:36,837 INFO L354 Elim1Store]: treesize reduction 12, result has 73.3 percent of original size [2021-06-17 07:21:36,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 50 treesize of output 54 [2021-06-17 07:21:36,849 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:39,570 WARN L205 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 313 DAG size of output: 308 [2021-06-17 07:21:39,571 INFO L628 ElimStorePlain]: treesize reduction 67, result has 96.6 percent of original size [2021-06-17 07:21:39,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:39,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:39,666 INFO L354 Elim1Store]: treesize reduction 16, result has 64.4 percent of original size [2021-06-17 07:21:39,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 50 [2021-06-17 07:21:39,674 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:39,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:39,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:39,740 INFO L354 Elim1Store]: treesize reduction 28, result has 37.8 percent of original size [2021-06-17 07:21:39,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 38 [2021-06-17 07:21:39,744 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:41,062 WARN L205 SmtUtils]: Spent 1.32 s on a formula simplification that was a NOOP. DAG size: 299 [2021-06-17 07:21:41,063 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:21:41,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:41,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:41,142 INFO L354 Elim1Store]: treesize reduction 24, result has 46.7 percent of original size [2021-06-17 07:21:41,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 50 treesize of output 42 [2021-06-17 07:21:41,146 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:41,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:41,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:41,182 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-06-17 07:21:41,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 48 treesize of output 1 [2021-06-17 07:21:41,182 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:42,411 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 287 [2021-06-17 07:21:42,411 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:21:42,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:42,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:42,480 INFO L354 Elim1Store]: treesize reduction 32, result has 28.9 percent of original size [2021-06-17 07:21:42,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 34 [2021-06-17 07:21:42,481 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:42,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:42,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:42,544 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:21:42,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 66 [2021-06-17 07:21:42,558 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:43,668 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 271 [2021-06-17 07:21:43,669 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:21:43,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:43,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:43,760 INFO L354 Elim1Store]: treesize reduction 24, result has 46.7 percent of original size [2021-06-17 07:21:43,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 50 treesize of output 42 [2021-06-17 07:21:43,770 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:43,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:43,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:43,800 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-06-17 07:21:43,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 48 treesize of output 1 [2021-06-17 07:21:43,801 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:45,929 WARN L205 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 261 DAG size of output: 259 [2021-06-17 07:21:45,930 INFO L628 ElimStorePlain]: treesize reduction 13, result has 99.2 percent of original size [2021-06-17 07:21:45,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:45,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:46,009 INFO L354 Elim1Store]: treesize reduction 16, result has 64.4 percent of original size [2021-06-17 07:21:46,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 40 treesize of output 50 [2021-06-17 07:21:46,015 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:46,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:46,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:46,065 INFO L354 Elim1Store]: treesize reduction 28, result has 37.8 percent of original size [2021-06-17 07:21:46,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 35 treesize of output 35 [2021-06-17 07:21:46,070 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:47,082 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 247 [2021-06-17 07:21:47,083 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:21:47,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:47,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:47,146 INFO L354 Elim1Store]: treesize reduction 24, result has 46.7 percent of original size [2021-06-17 07:21:47,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 39 treesize of output 39 [2021-06-17 07:21:47,152 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:47,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:47,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:47,181 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-06-17 07:21:47,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 37 treesize of output 1 [2021-06-17 07:21:47,182 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:48,117 WARN L205 SmtUtils]: Spent 934.00 ms on a formula simplification that was a NOOP. DAG size: 235 [2021-06-17 07:21:48,118 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:21:48,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:48,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:48,190 INFO L354 Elim1Store]: treesize reduction 14, result has 68.9 percent of original size [2021-06-17 07:21:48,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 49 [2021-06-17 07:21:48,198 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:48,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:48,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:48,258 INFO L354 Elim1Store]: treesize reduction 18, result has 60.0 percent of original size [2021-06-17 07:21:48,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 38 treesize of output 48 [2021-06-17 07:21:48,263 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:49,144 WARN L205 SmtUtils]: Spent 879.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2021-06-17 07:21:49,144 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:21:49,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:49,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:49,208 INFO L354 Elim1Store]: treesize reduction 24, result has 46.7 percent of original size [2021-06-17 07:21:49,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 50 treesize of output 42 [2021-06-17 07:21:49,213 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:49,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:49,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:49,258 INFO L354 Elim1Store]: treesize reduction 32, result has 28.9 percent of original size [2021-06-17 07:21:49,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 48 treesize of output 34 [2021-06-17 07:21:49,260 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:50,832 WARN L205 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 212 DAG size of output: 209 [2021-06-17 07:21:50,833 INFO L628 ElimStorePlain]: treesize reduction 16, result has 98.8 percent of original size [2021-06-17 07:21:50,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:50,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:50,899 INFO L354 Elim1Store]: treesize reduction 16, result has 64.4 percent of original size [2021-06-17 07:21:50,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 50 [2021-06-17 07:21:50,905 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:50,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:50,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:50,949 INFO L354 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2021-06-17 07:21:50,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 40 [2021-06-17 07:21:50,952 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:51,646 WARN L205 SmtUtils]: Spent 693.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-06-17 07:21:51,646 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:21:51,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:51,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:51,710 INFO L354 Elim1Store]: treesize reduction 16, result has 64.4 percent of original size [2021-06-17 07:21:51,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 44 treesize of output 50 [2021-06-17 07:21:51,715 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:51,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:51,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:51,757 INFO L354 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2021-06-17 07:21:51,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 40 [2021-06-17 07:21:51,762 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:53,174 WARN L205 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 185 DAG size of output: 181 [2021-06-17 07:21:53,175 INFO L628 ElimStorePlain]: treesize reduction 17, result has 98.7 percent of original size [2021-06-17 07:21:53,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:53,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:53,239 INFO L354 Elim1Store]: treesize reduction 12, result has 73.3 percent of original size [2021-06-17 07:21:53,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 54 [2021-06-17 07:21:53,250 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:53,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:53,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:53,271 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-06-17 07:21:53,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 44 treesize of output 1 [2021-06-17 07:21:53,272 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:53,904 WARN L205 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-06-17 07:21:53,905 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:21:53,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:53,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:53,952 INFO L354 Elim1Store]: treesize reduction 28, result has 37.8 percent of original size [2021-06-17 07:21:53,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 42 treesize of output 38 [2021-06-17 07:21:53,954 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:53,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:53,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:53,992 INFO L354 Elim1Store]: treesize reduction 24, result has 46.7 percent of original size [2021-06-17 07:21:53,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 44 treesize of output 42 [2021-06-17 07:21:53,997 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:55,113 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 155 DAG size of output: 154 [2021-06-17 07:21:55,114 INFO L628 ElimStorePlain]: treesize reduction 43, result has 96.1 percent of original size [2021-06-17 07:21:55,185 INFO L550 ElimStorePlain]: Start of recursive call 1: 17 dim-0 vars, 16 dim-1 vars, End of recursive call: and 26 xjuncts. [2021-06-17 07:21:55,186 INFO L247 ElimStorePlain]: Needed 33 recursive calls to eliminate 33 variables, input treesize:2177, output treesize:1228 [2021-06-17 07:21:55,410 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 25 [2021-06-17 07:21:55,470 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:21:55,471 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280596569] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:21:55,471 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 07:21:55,471 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16] total 25 [2021-06-17 07:21:55,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163566945] [2021-06-17 07:21:55,471 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-17 07:21:55,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 07:21:55,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-17 07:21:55,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2021-06-17 07:21:55,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:21:55,472 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 07:21:55,473 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.24) internal successors, (56), 25 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 07:21:55,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:21:55,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:21:55,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:21:55,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:21:55,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 07:21:55,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:21:55,908 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-06-17 07:21:56,163 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2021-06-17 07:21:56,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:21:56,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:21:56,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:21:56,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:21:56,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 07:21:56,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 07:21:56,474 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-06-17 07:21:56,475 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 07:21:56,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 07:21:56,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1404753657, now seen corresponding path program 3 times [2021-06-17 07:21:56,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 07:21:56,475 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583580] [2021-06-17 07:21:56,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 07:21:56,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:21:56,539 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:21:56,539 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 07:21:56,539 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583580] [2021-06-17 07:21:56,539 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583580] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:21:56,539 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361641682] [2021-06-17 07:21:56,539 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 07:21:56,569 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-17 07:21:56,569 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 07:21:56,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-17 07:21:56,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 07:21:56,700 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:21:56,700 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361641682] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:21:56,700 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 07:21:56,700 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-06-17 07:21:56,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95374347] [2021-06-17 07:21:56,701 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-17 07:21:56,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 07:21:56,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-17 07:21:56,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-06-17 07:21:56,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:21:56,701 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 07:21:56,701 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.55) internal successors, (51), 20 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 07:21:56,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:21:56,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:21:56,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:21:56,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:21:56,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 07:21:56,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-17 07:21:56,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:21:56,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:21:56,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:21:56,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:21:56,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:21:56,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 07:21:56,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 07:21:56,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 07:21:57,157 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 07:21:57,157 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 07:21:57,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 07:21:57,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1909403317, now seen corresponding path program 4 times [2021-06-17 07:21:57,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 07:21:57,158 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343680902] [2021-06-17 07:21:57,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 07:21:57,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:21:57,218 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 07:21:57,219 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 07:21:57,219 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343680902] [2021-06-17 07:21:57,219 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343680902] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:21:57,219 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215100378] [2021-06-17 07:21:57,219 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 07:21:57,248 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-17 07:21:57,248 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 07:21:57,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-17 07:21:57,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 07:21:57,342 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 07:21:57,342 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215100378] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:21:57,342 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 07:21:57,342 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-06-17 07:21:57,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88667183] [2021-06-17 07:21:57,342 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-17 07:21:57,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 07:21:57,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-17 07:21:57,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-06-17 07:21:57,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:21:57,343 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 07:21:57,343 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 07:21:57,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:21:57,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:21:57,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:21:57,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:21:57,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 07:21:57,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-17 07:21:57,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-17 07:21:57,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:21:57,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:21:57,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:21:57,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:21:57,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:21:57,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 07:21:57,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 07:21:57,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 07:21:57,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 07:21:57,660 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable287 [2021-06-17 07:21:57,660 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 07:21:57,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 07:21:57,661 INFO L82 PathProgramCache]: Analyzing trace with hash 665523753, now seen corresponding path program 5 times [2021-06-17 07:21:57,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 07:21:57,661 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619712970] [2021-06-17 07:21:57,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 07:21:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:21:58,181 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 60 [2021-06-17 07:21:58,561 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 100 [2021-06-17 07:21:59,162 WARN L205 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 116 [2021-06-17 07:21:59,747 WARN L205 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 111 [2021-06-17 07:21:59,966 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2021-06-17 07:22:00,140 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 49 [2021-06-17 07:22:00,322 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:22:00,322 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 07:22:00,322 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619712970] [2021-06-17 07:22:00,322 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619712970] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:22:00,322 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662611254] [2021-06-17 07:22:00,323 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 07:22:00,363 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-06-17 07:22:00,363 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 07:22:00,364 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 48 conjunts are in the unsatisfiable core [2021-06-17 07:22:00,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 07:22:02,024 WARN L205 SmtUtils]: Spent 967.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-06-17 07:22:03,427 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 353 [2021-06-17 07:22:05,366 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 361 [2021-06-17 07:22:06,961 WARN L205 SmtUtils]: Spent 974.00 ms on a formula simplification that was a NOOP. DAG size: 362 [2021-06-17 07:22:08,599 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 364 [2021-06-17 07:22:10,092 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 363 [2021-06-17 07:22:11,261 WARN L205 SmtUtils]: Spent 709.00 ms on a formula simplification that was a NOOP. DAG size: 350 [2021-06-17 07:22:12,883 WARN L205 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 349 [2021-06-17 07:22:13,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:13,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:13,534 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:13,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:13,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:13,542 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:13,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 22 [2021-06-17 07:22:13,558 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:13,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:13,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:13,596 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:13,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:13,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:13,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2021-06-17 07:22:13,600 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:18,671 WARN L205 SmtUtils]: Spent 5.07 s on a formula simplification. DAG size of input: 790 DAG size of output: 635 [2021-06-17 07:22:18,672 INFO L628 ElimStorePlain]: treesize reduction 2064, result has 44.1 percent of original size [2021-06-17 07:22:18,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:18,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:18,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:18,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:18,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-17 07:22:18,705 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:19,914 WARN L205 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 623 [2021-06-17 07:22:19,914 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:19,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:19,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:19,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:19,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:19,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-06-17 07:22:19,947 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:21,069 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 611 [2021-06-17 07:22:21,069 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:21,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:21,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:21,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:21,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:21,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-17 07:22:21,100 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:22,177 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 599 [2021-06-17 07:22:22,178 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:22,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:22,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:22,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:22,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:22,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-06-17 07:22:22,208 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:23,239 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 587 [2021-06-17 07:22:23,239 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:23,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:23,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:23,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:23,268 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:23,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:23,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:23,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2021-06-17 07:22:23,273 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:24,349 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 573 [2021-06-17 07:22:24,349 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:24,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:24,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:24,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:24,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:24,377 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-17 07:22:24,379 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:25,353 WARN L205 SmtUtils]: Spent 974.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2021-06-17 07:22:25,354 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:25,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:25,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:25,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:25,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:25,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-17 07:22:25,382 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:26,326 WARN L205 SmtUtils]: Spent 943.00 ms on a formula simplification that was a NOOP. DAG size: 547 [2021-06-17 07:22:26,327 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:26,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:26,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:26,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:26,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:26,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2021-06-17 07:22:26,358 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:27,243 WARN L205 SmtUtils]: Spent 884.00 ms on a formula simplification that was a NOOP. DAG size: 535 [2021-06-17 07:22:27,244 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:27,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:27,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:27,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:27,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:27,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-06-17 07:22:27,272 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:28,095 WARN L205 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 522 [2021-06-17 07:22:28,096 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:28,096 INFO L518 ElimStorePlain]: Eliminatee v_prenex_146 vanished before elimination [2021-06-17 07:22:28,118 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:28,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:28,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:28,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:28,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:28,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-17 07:22:28,125 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:28,949 WARN L205 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 509 [2021-06-17 07:22:28,950 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:28,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:28,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:28,976 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:28,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:28,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:28,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2021-06-17 07:22:28,981 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:29,758 WARN L205 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 495 [2021-06-17 07:22:29,758 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:29,778 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:29,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:29,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:29,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:29,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:29,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 22 [2021-06-17 07:22:29,785 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:30,521 WARN L205 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 482 [2021-06-17 07:22:30,521 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:30,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:30,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:30,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:30,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:30,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:30,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:30,548 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:30,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:30,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-17 07:22:30,552 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:31,270 WARN L205 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 468 [2021-06-17 07:22:31,270 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:31,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:31,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:31,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:31,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:31,297 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:31,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-17 07:22:31,299 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:31,990 WARN L205 SmtUtils]: Spent 690.00 ms on a formula simplification that was a NOOP. DAG size: 454 [2021-06-17 07:22:31,991 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:32,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:32,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:32,014 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:32,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:32,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:32,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-17 07:22:32,018 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:32,688 WARN L205 SmtUtils]: Spent 669.00 ms on a formula simplification that was a NOOP. DAG size: 440 [2021-06-17 07:22:32,689 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:32,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:32,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:32,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:32,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:32,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-17 07:22:32,713 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:33,364 WARN L205 SmtUtils]: Spent 651.00 ms on a formula simplification that was a NOOP. DAG size: 427 [2021-06-17 07:22:33,365 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:33,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:33,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:33,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:33,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:33,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2021-06-17 07:22:33,389 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:33,969 WARN L205 SmtUtils]: Spent 579.00 ms on a formula simplification that was a NOOP. DAG size: 414 [2021-06-17 07:22:33,970 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:33,989 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:33,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:33,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:33,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:33,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:33,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-06-17 07:22:33,996 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:34,569 WARN L205 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 400 [2021-06-17 07:22:34,569 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:34,587 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:34,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:34,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:34,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:34,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:34,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-17 07:22:34,593 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:35,152 WARN L205 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2021-06-17 07:22:35,153 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:35,169 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:35,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:35,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:35,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:35,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:35,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2021-06-17 07:22:35,176 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:35,693 WARN L205 SmtUtils]: Spent 516.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2021-06-17 07:22:35,693 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:35,711 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:35,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:35,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:35,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:35,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:35,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-17 07:22:35,718 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:36,210 WARN L205 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2021-06-17 07:22:36,211 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:36,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:36,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:36,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:36,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:36,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-17 07:22:36,232 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:36,708 WARN L205 SmtUtils]: Spent 475.00 ms on a formula simplification that was a NOOP. DAG size: 346 [2021-06-17 07:22:36,708 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:36,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:36,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:36,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:36,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:36,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-17 07:22:36,733 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:37,195 WARN L205 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 333 [2021-06-17 07:22:37,196 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:37,212 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:37,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:37,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:37,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:37,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:37,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-06-17 07:22:37,219 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:37,648 WARN L205 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 319 [2021-06-17 07:22:37,649 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:37,665 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:37,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:37,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:37,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:37,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:37,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-17 07:22:37,671 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:38,093 WARN L205 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 305 [2021-06-17 07:22:38,094 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:38,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:38,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:38,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:38,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:38,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-06-17 07:22:38,117 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:38,515 WARN L205 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 292 [2021-06-17 07:22:38,516 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:38,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:38,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:38,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:38,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:38,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-17 07:22:38,537 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:38,908 WARN L205 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 279 [2021-06-17 07:22:38,908 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:38,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:38,923 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:38,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:38,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:38,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:38,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-06-17 07:22:38,928 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:39,265 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-06-17 07:22:39,265 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:39,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:39,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:39,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:39,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:39,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2021-06-17 07:22:39,283 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:39,604 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2021-06-17 07:22:39,605 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:39,619 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:39,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:39,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:39,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:39,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:39,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-06-17 07:22:39,625 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:39,927 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-06-17 07:22:39,927 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:39,945 INFO L550 ElimStorePlain]: Start of recursive call 1: 64 dim-0 vars, 32 dim-1 vars, End of recursive call: and 10 xjuncts. [2021-06-17 07:22:39,946 INFO L247 ElimStorePlain]: Needed 33 recursive calls to eliminate 96 variables, input treesize:3792, output treesize:71 [2021-06-17 07:22:40,076 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:22:40,076 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662611254] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:22:40,076 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 07:22:40,076 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-06-17 07:22:40,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815423358] [2021-06-17 07:22:40,079 INFO L462 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-06-17 07:22:40,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 07:22:40,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-06-17 07:22:40,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=898, Unknown=0, NotChecked=0, Total=992 [2021-06-17 07:22:40,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:22:40,081 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 07:22:40,081 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 2.3125) internal successors, (74), 32 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 07:22:40,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:22:40,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:22:40,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:22:40,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:22:40,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 07:22:40,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-17 07:22:40,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-17 07:22:40,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-17 07:22:40,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:22:40,570 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 33 [2021-06-17 07:22:40,983 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 41 [2021-06-17 07:22:41,498 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 63 [2021-06-17 07:22:41,710 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 57 [2021-06-17 07:22:42,070 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 58 [2021-06-17 07:22:42,388 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 83 [2021-06-17 07:22:43,321 WARN L205 SmtUtils]: Spent 717.00 ms on a formula simplification. DAG size of input: 541 DAG size of output: 125 [2021-06-17 07:22:45,502 WARN L205 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 206 DAG size of output: 121 [2021-06-17 07:22:49,009 WARN L205 SmtUtils]: Spent 3.25 s on a formula simplification. DAG size of input: 513 DAG size of output: 160 [2021-06-17 07:22:49,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:22:49,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:22:49,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:22:49,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:22:49,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 07:22:49,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 07:22:49,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 07:22:49,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 07:22:49,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-17 07:22:49,955 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable288 [2021-06-17 07:22:49,955 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 07:22:49,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 07:22:49,956 INFO L82 PathProgramCache]: Analyzing trace with hash 440189797, now seen corresponding path program 6 times [2021-06-17 07:22:49,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 07:22:49,956 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412347842] [2021-06-17 07:22:49,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 07:22:49,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:22:50,607 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2021-06-17 07:22:51,029 WARN L205 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 114 [2021-06-17 07:22:51,474 WARN L205 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 117 [2021-06-17 07:22:52,080 WARN L205 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 138 [2021-06-17 07:22:52,476 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 106 [2021-06-17 07:22:52,696 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2021-06-17 07:22:52,831 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2021-06-17 07:22:53,070 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:22:53,070 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 07:22:53,070 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412347842] [2021-06-17 07:22:53,070 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412347842] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:22:53,070 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771278454] [2021-06-17 07:22:53,070 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 07:22:53,150 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-06-17 07:22:53,150 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 07:22:53,151 WARN L261 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 59 conjunts are in the unsatisfiable core [2021-06-17 07:22:53,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 07:22:53,780 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-06-17 07:22:53,979 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-06-17 07:22:57,218 WARN L205 SmtUtils]: Spent 2.63 s on a formula simplification that was a NOOP. DAG size: 168 [2021-06-17 07:23:00,993 WARN L205 SmtUtils]: Spent 2.93 s on a formula simplification that was a NOOP. DAG size: 669 [2021-06-17 07:23:06,384 WARN L205 SmtUtils]: Spent 3.10 s on a formula simplification that was a NOOP. DAG size: 678 [2021-06-17 07:23:10,618 WARN L205 SmtUtils]: Spent 2.72 s on a formula simplification that was a NOOP. DAG size: 679 [2021-06-17 07:23:11,686 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 689 DAG size of output: 681 [2021-06-17 07:23:11,841 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 617 DAG size of output: 554 [2021-06-17 07:23:15,466 WARN L205 SmtUtils]: Spent 2.99 s on a formula simplification that was a NOOP. DAG size: 681 [2021-06-17 07:23:19,707 WARN L205 SmtUtils]: Spent 3.28 s on a formula simplification that was a NOOP. DAG size: 682 [2021-06-17 07:23:24,022 WARN L205 SmtUtils]: Spent 3.05 s on a formula simplification that was a NOOP. DAG size: 685 [2021-06-17 07:23:27,382 WARN L205 SmtUtils]: Spent 2.20 s on a formula simplification that was a NOOP. DAG size: 684 [2021-06-17 07:23:29,067 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 1064 DAG size of output: 1064 [2021-06-17 07:23:29,287 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 1447 DAG size of output: 1447 [2021-06-17 07:23:29,419 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 1447 DAG size of output: 1447 [2021-06-17 07:23:37,840 WARN L205 SmtUtils]: Spent 6.76 s on a formula simplification. DAG size of input: 1447 DAG size of output: 1075 [2021-06-17 07:23:41,988 WARN L205 SmtUtils]: Spent 2.48 s on a formula simplification that was a NOOP. DAG size: 1077 [2021-06-17 07:23:47,614 INFO L446 ElimStorePlain]: Different costs {11=[v_prenex_349, v_prenex_328, v_prenex_296, v_prenex_342, v_prenex_298, v_prenex_331, v_prenex_332, v_prenex_333, v_prenex_357, v_prenex_337], 15=[v_prenex_350, v_prenex_295, v_prenex_341, v_prenex_321, v_prenex_354, v_prenex_310, v_prenex_322, v_prenex_355, v_prenex_311, v_prenex_300, v_prenex_344, v_prenex_301, v_prenex_334, v_prenex_346, v_prenex_335, v_prenex_314, v_prenex_347, v_prenex_348, v_prenex_317, v_prenex_307, v_prenex_308], 18=[v_prenex_340, v_prenex_320, v_prenex_343, v_prenex_323, v_prenex_345, v_prenex_324, v_prenex_302, v_prenex_325, v_prenex_303, v_prenex_326, v_prenex_304, v_prenex_316, v_prenex_338, v_prenex_318, v_prenex_319, v_prenex_351, v_prenex_352, v_prenex_330, v_prenex_297, v_prenex_353, v_prenex_299, v_prenex_312, v_prenex_356, v_prenex_313, v_prenex_336, v_prenex_315, v_prenex_305, v_prenex_327, v_prenex_306, A, v_prenex_329, v_prenex_309], 21=[v_prenex_339]} [2021-06-17 07:23:47,825 INFO L244 Elim1Store]: Index analysis took 130 ms [2021-06-17 07:23:48,381 WARN L205 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-17 07:23:48,381 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-17 07:23:48,381 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 7 new quantified variables, introduced 11 case distinctions, treesize of input 56 treesize of output 92 [2021-06-17 07:23:48,409 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 07:23:49,113 WARN L205 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2021-06-17 07:23:49,113 INFO L354 Elim1Store]: treesize reduction 40, result has 55.1 percent of original size [2021-06-17 07:23:49,113 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 7 new quantified variables, introduced 11 case distinctions, treesize of input 56 treesize of output 76 [2021-06-17 07:23:49,116 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 07:24:16,284 WARN L205 SmtUtils]: Spent 27.17 s on a formula simplification that was a NOOP. DAG size: 1817 [2021-06-17 07:24:16,285 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:24:16,647 INFO L244 Elim1Store]: Index analysis took 275 ms [2021-06-17 07:24:17,013 WARN L205 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-06-17 07:24:17,014 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:24:17,014 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 7 new quantified variables, introduced 11 case distinctions, treesize of input 58 treesize of output 116 [2021-06-17 07:24:17,218 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-17 07:24:17,414 INFO L244 Elim1Store]: Index analysis took 106 ms [2021-06-17 07:24:18,121 WARN L205 SmtUtils]: Spent 704.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-17 07:24:18,122 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-17 07:24:18,122 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 7 new quantified variables, introduced 11 case distinctions, treesize of input 58 treesize of output 92 [2021-06-17 07:24:18,135 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-17 07:25:14,479 WARN L205 SmtUtils]: Spent 56.34 s on a formula simplification. DAG size of input: 1822 DAG size of output: 1801 [2021-06-17 07:25:14,482 INFO L628 ElimStorePlain]: treesize reduction 95, result has 99.0 percent of original size [2021-06-17 07:25:14,793 INFO L244 Elim1Store]: Index analysis took 217 ms [2021-06-17 07:25:15,447 WARN L205 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2021-06-17 07:25:15,447 INFO L354 Elim1Store]: treesize reduction 40, result has 55.1 percent of original size [2021-06-17 07:25:15,447 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 7 new quantified variables, introduced 11 case distinctions, treesize of input 58 treesize of output 76 [2021-06-17 07:25:15,450 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-17 07:25:15,676 INFO L244 Elim1Store]: Index analysis took 136 ms [2021-06-17 07:25:16,152 WARN L205 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-17 07:25:16,153 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-17 07:25:16,153 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 7 new quantified variables, introduced 11 case distinctions, treesize of input 58 treesize of output 92 [2021-06-17 07:25:16,164 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-17 07:26:12,294 WARN L205 SmtUtils]: Spent 56.13 s on a formula simplification. DAG size of input: 1800 DAG size of output: 1797 [2021-06-17 07:26:12,298 INFO L628 ElimStorePlain]: treesize reduction 14, result has 99.9 percent of original size [2021-06-17 07:26:12,565 INFO L244 Elim1Store]: Index analysis took 182 ms [2021-06-17 07:26:13,002 WARN L205 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-06-17 07:26:13,002 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:26:13,002 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 7 new quantified variables, introduced 11 case distinctions, treesize of input 58 treesize of output 116 [2021-06-17 07:26:13,385 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-17 07:26:13,597 INFO L244 Elim1Store]: Index analysis took 125 ms [2021-06-17 07:26:14,223 WARN L205 SmtUtils]: Spent 622.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-17 07:26:14,224 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-17 07:26:14,224 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 7 new quantified variables, introduced 11 case distinctions, treesize of input 58 treesize of output 92 [2021-06-17 07:26:14,262 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:12,197 WARN L205 SmtUtils]: Spent 57.93 s on a formula simplification. DAG size of input: 1839 DAG size of output: 1780 [2021-06-17 07:27:12,201 INFO L628 ElimStorePlain]: treesize reduction 411, result has 95.9 percent of original size [2021-06-17 07:27:12,493 INFO L244 Elim1Store]: Index analysis took 203 ms [2021-06-17 07:27:13,106 WARN L205 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-17 07:27:13,106 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-17 07:27:13,106 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 7 new quantified variables, introduced 11 case distinctions, treesize of input 58 treesize of output 92 [2021-06-17 07:27:13,138 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-06-17 07:27:13,753 WARN L205 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2021-06-17 07:27:13,754 INFO L354 Elim1Store]: treesize reduction 40, result has 55.1 percent of original size [2021-06-17 07:27:13,754 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 7 new quantified variables, introduced 11 case distinctions, treesize of input 58 treesize of output 76 [2021-06-17 07:27:13,756 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-06-17 07:28:10,970 WARN L205 SmtUtils]: Spent 57.21 s on a formula simplification. DAG size of input: 1783 DAG size of output: 1777 [2021-06-17 07:28:10,974 INFO L628 ElimStorePlain]: treesize reduction 40, result has 99.6 percent of original size [2021-06-17 07:28:11,203 INFO L244 Elim1Store]: Index analysis took 139 ms [2021-06-17 07:28:11,627 WARN L205 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-17 07:28:11,627 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-17 07:28:11,627 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 7 new quantified variables, introduced 11 case distinctions, treesize of input 41 treesize of output 89 [2021-06-17 07:28:11,648 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-06-17 07:28:12,256 WARN L205 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2021-06-17 07:28:12,257 INFO L354 Elim1Store]: treesize reduction 40, result has 55.1 percent of original size [2021-06-17 07:28:12,257 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 7 new quantified variables, introduced 11 case distinctions, treesize of input 46 treesize of output 76 [2021-06-17 07:28:12,260 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-06-17 07:28:39,609 WARN L205 SmtUtils]: Spent 27.35 s on a formula simplification that was a NOOP. DAG size: 1773 [2021-06-17 07:28:39,611 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:28:39,947 INFO L244 Elim1Store]: Index analysis took 244 ms [2021-06-17 07:28:40,578 WARN L205 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2021-06-17 07:28:40,579 INFO L354 Elim1Store]: treesize reduction 40, result has 55.1 percent of original size [2021-06-17 07:28:40,579 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 7 new quantified variables, introduced 11 case distinctions, treesize of input 58 treesize of output 76 [2021-06-17 07:28:40,581 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-06-17 07:28:41,299 WARN L205 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-17 07:28:41,299 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-17 07:28:41,300 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 7 new quantified variables, introduced 11 case distinctions, treesize of input 58 treesize of output 92 [2021-06-17 07:28:41,322 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-06-17 07:29:35,578 WARN L205 SmtUtils]: Spent 54.25 s on a formula simplification. DAG size of input: 1772 DAG size of output: 1768 [2021-06-17 07:29:35,581 INFO L628 ElimStorePlain]: treesize reduction 34, result has 99.6 percent of original size [2021-06-17 07:29:35,920 INFO L244 Elim1Store]: Index analysis took 246 ms [2021-06-17 07:29:36,381 WARN L205 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-17 07:29:36,382 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-17 07:29:36,382 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 7 new quantified variables, introduced 11 case distinctions, treesize of input 56 treesize of output 92 [2021-06-17 07:29:36,415 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-06-17 07:29:36,974 WARN L205 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2021-06-17 07:29:36,974 INFO L354 Elim1Store]: treesize reduction 40, result has 55.1 percent of original size [2021-06-17 07:29:36,975 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 7 new quantified variables, introduced 11 case distinctions, treesize of input 56 treesize of output 76 [2021-06-17 07:29:36,977 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-06-17 07:30:31,840 WARN L205 SmtUtils]: Spent 54.86 s on a formula simplification. DAG size of input: 1766 DAG size of output: 1762 [2021-06-17 07:30:31,844 INFO L628 ElimStorePlain]: treesize reduction 30, result has 99.7 percent of original size [2021-06-17 07:30:32,101 INFO L244 Elim1Store]: Index analysis took 167 ms [2021-06-17 07:30:32,438 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-06-17 07:30:32,438 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:30:32,439 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 7 new quantified variables, introduced 11 case distinctions, treesize of input 56 treesize of output 116 [2021-06-17 07:30:32,713 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-06-17 07:30:33,622 WARN L205 SmtUtils]: Spent 739.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-17 07:30:33,622 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-17 07:30:33,623 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 7 new quantified variables, introduced 11 case distinctions, treesize of input 56 treesize of output 92 [2021-06-17 07:30:33,635 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-06-17 07:31:27,834 WARN L205 SmtUtils]: Spent 54.20 s on a formula simplification. DAG size of input: 1769 DAG size of output: 1745 [2021-06-17 07:31:27,850 INFO L628 ElimStorePlain]: treesize reduction 138, result has 98.6 percent of original size [2021-06-17 07:31:28,124 INFO L244 Elim1Store]: Index analysis took 184 ms [2021-06-17 07:31:28,673 WARN L205 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-17 07:31:28,673 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-17 07:31:28,673 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 7 new quantified variables, introduced 11 case distinctions, treesize of input 58 treesize of output 92 [2021-06-17 07:31:28,695 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-06-17 07:31:29,157 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-06-17 07:31:29,157 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:31:29,157 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 7 new quantified variables, introduced 11 case distinctions, treesize of input 58 treesize of output 116 [2021-06-17 07:31:29,580 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-06-17 07:32:23,086 WARN L205 SmtUtils]: Spent 53.50 s on a formula simplification. DAG size of input: 1755 DAG size of output: 1728 [2021-06-17 07:32:23,200 INFO L628 ElimStorePlain]: treesize reduction 152, result has 98.4 percent of original size [2021-06-17 07:32:23,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:32:23,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:32:23,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:32:23,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:32:23,486 INFO L244 Elim1Store]: Index analysis took 195 ms [2021-06-17 07:32:23,924 WARN L205 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2021-06-17 07:32:23,925 INFO L354 Elim1Store]: treesize reduction 40, result has 55.1 percent of original size [2021-06-17 07:32:23,925 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 7 new quantified variables, introduced 11 case distinctions, treesize of input 58 treesize of output 76 [2021-06-17 07:32:23,927 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-06-17 07:32:24,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:32:24,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:32:24,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:32:24,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:32:24,153 INFO L244 Elim1Store]: Index analysis took 126 ms [2021-06-17 07:32:24,792 WARN L205 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-17 07:32:24,792 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-17 07:32:24,793 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 7 new quantified variables, introduced 11 case distinctions, treesize of input 58 treesize of output 92 [2021-06-17 07:32:24,828 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-06-17 07:32:37,793 WARN L227 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: ASSERTION VIOLATION File: ../src/math/lp/int_solver.cpp Line: 562 Failed to verify: get_freedom_interval_for_column(j, inf_l, l, inf_u, u, m) || settings().get_cancel_flag() Z3 4.8.11.0 Please file an issue with this message and more detail about how you encountered it at https://github.com/Z3Prover/z3/issues/new [2021-06-17 07:32:37,794 WARN L348 FreeRefinementEngine]: Global settings require throwing the following exception [2021-06-17 07:32:37,995 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable444 [2021-06-17 07:32:37,996 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: ASSERTION VIOLATION File: ../src/math/lp/int_solver.cpp Line: 562 Failed to verify: get_freedom_interval_for_column(j, inf_l, l, inf_u, u, m) || settings().get_cancel_flag() Z3 4.8.11.0 Please file an issue with this message and more detail about how you encountered it at https://github.com/Z3Prover/z3/issues/new 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.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:621) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:120) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:173) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:238) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.eliminateOne(ElimStorePlain.java:625) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.doElimAllRec(ElimStorePlain.java:520) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:242) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:307) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:100) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:201) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:297) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:190) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:180) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:561) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:439) 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:363) 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$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:238) ... 56 more [2021-06-17 07:32:38,000 INFO L168 Benchmark]: Toolchain (without parser) took 672841.05 ms. Allocated memory was 190.8 MB in the beginning and 609.2 MB in the end (delta: 418.4 MB). Free memory was 171.0 MB in the beginning and 512.9 MB in the end (delta: -341.9 MB). Peak memory consumption was 377.1 MB. Max. memory is 8.0 GB. [2021-06-17 07:32:38,000 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 190.8 MB. Free memory is still 172.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-17 07:32:38,000 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.23 ms. Allocated memory is still 190.8 MB. Free memory was 170.9 MB in the beginning and 169.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-17 07:32:38,000 INFO L168 Benchmark]: Boogie Preprocessor took 10.50 ms. Allocated memory is still 190.8 MB. Free memory was 169.5 MB in the beginning and 168.5 MB in the end (delta: 969.9 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-17 07:32:38,000 INFO L168 Benchmark]: RCFGBuilder took 261.45 ms. Allocated memory is still 190.8 MB. Free memory was 168.4 MB in the beginning and 154.9 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-06-17 07:32:38,000 INFO L168 Benchmark]: TraceAbstraction took 672544.87 ms. Allocated memory was 190.8 MB in the beginning and 609.2 MB in the end (delta: 418.4 MB). Free memory was 154.5 MB in the beginning and 512.9 MB in the end (delta: -358.4 MB). Peak memory consumption was 360.4 MB. Max. memory is 8.0 GB. [2021-06-17 07:32:38,000 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 190.8 MB. Free memory is still 172.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 20.23 ms. Allocated memory is still 190.8 MB. Free memory was 170.9 MB in the beginning and 169.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 10.50 ms. Allocated memory is still 190.8 MB. Free memory was 169.5 MB in the beginning and 168.5 MB in the end (delta: 969.9 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 261.45 ms. Allocated memory is still 190.8 MB. Free memory was 168.4 MB in the beginning and 154.9 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 672544.87 ms. Allocated memory was 190.8 MB in the beginning and 609.2 MB in the end (delta: 418.4 MB). Free memory was 154.5 MB in the beginning and 512.9 MB in the end (delta: -358.4 MB). Peak memory consumption was 360.4 MB. Max. memory is 8.0 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: ASSERTION VIOLATION File: ../src/math/lp/int_solver.cpp Line: 562 Failed to verify: get_freedom_interval_for_column(j, inf_l, l, inf_u, u, m) || settings().get_cancel_flag() Z3 4.8.11.0 Please file an issue with this message and more detail about how you encountered it at https://github.com/Z3Prover/z3/issues/new 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: ASSERTION VIOLATION File: ../src/math/lp/int_solver.cpp Line: 562 Failed to verify: get_freedom_interval_for_column(j, inf_l, l, inf_u, u, m) || settings().get_cancel_flag() Z3 4.8.11.0 Please file an issue with this message and more detail about how you encountered it at https://github.com/Z3Prover/z3/issues/new : 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...