/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-06 11:36:09,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-06 11:36:09,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-06 11:36:09,087 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-06 11:36:09,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-06 11:36:09,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-06 11:36:09,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-06 11:36:09,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-06 11:36:09,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-06 11:36:09,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-06 11:36:09,115 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-06 11:36:09,120 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-06 11:36:09,121 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-06 11:36:09,122 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-06 11:36:09,123 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-06 11:36:09,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-06 11:36:09,130 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-06 11:36:09,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-06 11:36:09,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-06 11:36:09,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-06 11:36:09,142 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe.epf [2021-06-06 11:36:09,176 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-06 11:36:09,177 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-06 11:36:09,177 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-06 11:36:09,177 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-06 11:36:09,179 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-06 11:36:09,180 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-06 11:36:09,180 INFO L138 SettingsManager]: * Use SBE=true [2021-06-06 11:36:09,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-06 11:36:09,180 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-06 11:36:09,180 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-06 11:36:09,181 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-06 11:36:09,181 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-06 11:36:09,182 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-06 11:36:09,182 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-06 11:36:09,182 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-06 11:36:09,182 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-06 11:36:09,182 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-06 11:36:09,182 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-06 11:36:09,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-06 11:36:09,183 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-06 11:36:09,183 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-06 11:36:09,183 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-06 11:36:09,183 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-06 11:36:09,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 11:36:09,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-06 11:36:09,184 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-06 11:36:09,184 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-06 11:36:09,184 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-06 11:36:09,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-06 11:36:09,184 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-06 11:36:09,184 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-06 11:36:09,184 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-06 11:36:09,185 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-06 11:36:09,185 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-06 11:36:09,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-06 11:36:09,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-06 11:36:09,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-06 11:36:09,531 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-06 11:36:09,532 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-06 11:36:09,533 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-array.wvr.bpl [2021-06-06 11:36:09,533 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-array.wvr.bpl' [2021-06-06 11:36:09,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-06 11:36:09,561 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-06 11:36:09,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-06 11:36:09,562 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-06 11:36:09,562 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-06 11:36:09,573 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 06.06 11:36:09" (1/1) ... [2021-06-06 11:36:09,580 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 06.06 11:36:09" (1/1) ... [2021-06-06 11:36:09,587 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-06 11:36:09,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-06 11:36:09,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-06 11:36:09,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-06 11:36:09,596 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:36:09" (1/1) ... [2021-06-06 11:36:09,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:36:09" (1/1) ... [2021-06-06 11:36:09,598 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:36:09" (1/1) ... [2021-06-06 11:36:09,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:36:09" (1/1) ... [2021-06-06 11:36:09,602 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:36:09" (1/1) ... [2021-06-06 11:36:09,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:36:09" (1/1) ... [2021-06-06 11:36:09,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:36:09" (1/1) ... [2021-06-06 11:36:09,612 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-06 11:36:09,615 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-06 11:36:09,615 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-06 11:36:09,615 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-06 11:36:09,616 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:36:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 11:36:09,702 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-06 11:36:09,703 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-06 11:36:09,703 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-06 11:36:09,703 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-06 11:36:09,703 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-06 11:36:09,703 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-06 11:36:09,704 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-06 11:36:09,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-06 11:36:09,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-06 11:36:09,704 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-06 11:36:09,704 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-06 11:36:09,705 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-06 11:36:09,705 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-06 11:36:09,882 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-06 11:36:09,883 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-06 11:36:09,884 INFO L202 PluginConnector]: Adding new model max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 11:36:09 BoogieIcfgContainer [2021-06-06 11:36:09,884 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-06 11:36:09,886 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-06 11:36:09,886 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-06 11:36:09,888 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-06 11:36:09,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:36:09" (1/2) ... [2021-06-06 11:36:09,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b90c06c and model type max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.06 11:36:09, skipping insertion in model container [2021-06-06 11:36:09,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 11:36:09" (2/2) ... [2021-06-06 11:36:09,890 INFO L111 eAbstractionObserver]: Analyzing ICFG max-array.wvr.bpl [2021-06-06 11:36:09,895 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-06 11:36:09,895 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-06 11:36:09,895 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-06 11:36:09,896 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-06 11:36:09,929 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-06 11:36:09,946 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-06 11:36:10,028 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-06 11:36:10,028 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-06 11:36:10,029 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-06 11:36:10,029 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-06 11:36:10,029 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-06 11:36:10,029 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-06 11:36:10,030 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-06 11:36:10,030 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-06 11:36:10,138 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 11:36:10,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 11:36:10,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1399820781, now seen corresponding path program 1 times [2021-06-06 11:36:10,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 11:36:10,148 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369112781] [2021-06-06 11:36:10,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 11:36:10,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:36:10,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:36:10,330 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 11:36:10,330 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369112781] [2021-06-06 11:36:10,331 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369112781] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 11:36:10,331 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 11:36:10,331 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-06 11:36:10,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650335980] [2021-06-06 11:36:10,335 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-06 11:36:10,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 11:36:10,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-06 11:36:10,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-06 11:36:10,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:36:10,353 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 11:36:10,358 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) [2021-06-06 11:36:10,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:36:10,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:36:10,391 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-06 11:36:10,391 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 11:36:10,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 11:36:10,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1882321483, now seen corresponding path program 1 times [2021-06-06 11:36:10,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 11:36:10,395 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878865435] [2021-06-06 11:36:10,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 11:36:10,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:36:10,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 11:36:10,465 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 11:36:10,466 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878865435] [2021-06-06 11:36:10,466 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878865435] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 11:36:10,466 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 11:36:10,466 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-06 11:36:10,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849549443] [2021-06-06 11:36:10,467 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-06 11:36:10,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 11:36:10,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-06 11:36:10,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-06 11:36:10,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:36:10,468 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 11:36:10,469 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 11:36:10,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:36:10,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:36:10,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:36:10,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:36:10,504 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-06 11:36:10,504 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 11:36:10,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 11:36:10,505 INFO L82 PathProgramCache]: Analyzing trace with hash 1166833961, now seen corresponding path program 1 times [2021-06-06 11:36:10,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 11:36:10,505 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833492557] [2021-06-06 11:36:10,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 11:36:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:36:10,785 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:36:10,785 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 11:36:10,785 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833492557] [2021-06-06 11:36:10,785 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833492557] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:36:10,786 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323193063] [2021-06-06 11:36:10,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 11:36:10,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:36:10,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-06 11:36:10,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 11:36:11,153 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 [2021-06-06 11:36:11,154 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:11,158 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 [2021-06-06 11:36:11,159 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:11,178 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 [2021-06-06 11:36:11,180 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:11,190 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:36:11,193 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-06 11:36:11,194 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:91, output treesize:15 [2021-06-06 11:36:11,263 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:36:11,263 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323193063] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:36:11,263 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 11:36:11,263 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-06-06 11:36:11,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142261289] [2021-06-06 11:36:11,264 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-06 11:36:11,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 11:36:11,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-06 11:36:11,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-06-06 11:36:11,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:36:11,265 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 11:36:11,265 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) [2021-06-06 11:36:11,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:36:11,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:36:11,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:36:11,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:36:11,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:36:11,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 11:36:11,678 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 11:36:11,678 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 11:36:11,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 11:36:11,679 INFO L82 PathProgramCache]: Analyzing trace with hash 2135652999, now seen corresponding path program 2 times [2021-06-06 11:36:11,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 11:36:11,679 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501672871] [2021-06-06 11:36:11,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 11:36:11,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:36:11,751 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:36:11,752 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 11:36:11,752 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501672871] [2021-06-06 11:36:11,752 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501672871] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:36:11,752 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117062964] [2021-06-06 11:36:11,752 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 11:36:11,796 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 11:36:11,796 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 11:36:11,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-06 11:36:11,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 11:36:11,953 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:36:11,954 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117062964] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:36:11,958 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 11:36:11,958 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-06-06 11:36:11,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964367382] [2021-06-06 11:36:11,960 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-06 11:36:11,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 11:36:11,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-06 11:36:11,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-06-06 11:36:11,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:36:11,963 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 11:36:11,963 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) [2021-06-06 11:36:11,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:36:11,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:36:11,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 11:36:11,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:36:12,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:36:12,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:36:12,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 11:36:12,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:36:12,364 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 11:36:12,365 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 11:36:12,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 11:36:12,365 INFO L82 PathProgramCache]: Analyzing trace with hash -357408053, now seen corresponding path program 1 times [2021-06-06 11:36:12,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 11:36:12,366 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838182242] [2021-06-06 11:36:12,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 11:36:12,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:36:12,460 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 11:36:12,460 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 11:36:12,460 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838182242] [2021-06-06 11:36:12,460 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838182242] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:36:12,460 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071012643] [2021-06-06 11:36:12,460 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 [2021-06-06 11:36:12,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:36:12,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-06 11:36:12,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 11:36:12,644 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 11:36:12,644 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071012643] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:36:12,644 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 11:36:12,645 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-06-06 11:36:12,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901355389] [2021-06-06 11:36:12,645 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-06 11:36:12,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 11:36:12,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-06 11:36:12,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-06-06 11:36:12,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:36:12,647 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 11:36:12,647 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) [2021-06-06 11:36:12,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:36:12,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:36:12,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 11:36:12,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:36:12,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:36:12,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:36:12,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:36:12,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 11:36:12,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:36:12,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 11:36:12,968 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 11:36:12,969 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 11:36:12,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 11:36:12,969 INFO L82 PathProgramCache]: Analyzing trace with hash -336173655, now seen corresponding path program 2 times [2021-06-06 11:36:12,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 11:36:12,969 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519734913] [2021-06-06 11:36:12,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 11:36:13,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:36:13,386 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2021-06-06 11:36:13,561 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-06-06 11:36:13,727 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-06-06 11:36:13,927 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:36:13,927 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 11:36:13,927 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519734913] [2021-06-06 11:36:13,927 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519734913] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:36:13,928 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80908401] [2021-06-06 11:36:13,928 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 [2021-06-06 11:36:13,965 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 11:36:13,965 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 11:36:13,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 37 conjunts are in the unsatisfiable core [2021-06-06 11:36:13,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 11:36:15,409 WARN L205 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-06-06 11:36:17,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:17,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:17,707 INFO L354 Elim1Store]: treesize reduction 14, result has 68.9 percent of original size [2021-06-06 11:36:17,708 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 [2021-06-06 11:36:17,718 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:17,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:17,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:17,848 INFO L354 Elim1Store]: treesize reduction 18, result has 60.0 percent of original size [2021-06-06 11:36:17,848 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 [2021-06-06 11:36:17,858 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:19,398 WARN L205 SmtUtils]: Spent 1.54 s on a formula simplification that was a NOOP. DAG size: 344 [2021-06-06 11:36:19,398 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:36:19,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:19,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:19,488 INFO L354 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2021-06-06 11:36:19,489 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 [2021-06-06 11:36:19,495 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:19,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:19,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:19,612 INFO L354 Elim1Store]: treesize reduction 16, result has 64.4 percent of original size [2021-06-06 11:36:19,613 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 [2021-06-06 11:36:19,620 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:21,065 WARN L205 SmtUtils]: Spent 1.44 s on a formula simplification that was a NOOP. DAG size: 333 [2021-06-06 11:36:21,065 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:36:21,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:21,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:21,163 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:36:21,163 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 [2021-06-06 11:36:21,200 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:21,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:21,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:21,290 INFO L354 Elim1Store]: treesize reduction 32, result has 28.9 percent of original size [2021-06-06 11:36:21,291 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 [2021-06-06 11:36:21,294 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:22,792 WARN L205 SmtUtils]: Spent 1.50 s on a formula simplification that was a NOOP. DAG size: 319 [2021-06-06 11:36:22,792 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:36:22,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:22,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:22,879 INFO L354 Elim1Store]: treesize reduction 28, result has 37.8 percent of original size [2021-06-06 11:36:22,879 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 [2021-06-06 11:36:22,882 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:22,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:22,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:23,010 INFO L354 Elim1Store]: treesize reduction 12, result has 73.3 percent of original size [2021-06-06 11:36:23,011 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 [2021-06-06 11:36:23,027 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:25,800 WARN L205 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 313 DAG size of output: 308 [2021-06-06 11:36:25,802 INFO L628 ElimStorePlain]: treesize reduction 67, result has 96.6 percent of original size [2021-06-06 11:36:25,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:25,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:25,905 INFO L354 Elim1Store]: treesize reduction 16, result has 64.4 percent of original size [2021-06-06 11:36:25,906 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 [2021-06-06 11:36:25,944 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:25,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:25,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:26,011 INFO L354 Elim1Store]: treesize reduction 28, result has 37.8 percent of original size [2021-06-06 11:36:26,011 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 [2021-06-06 11:36:26,024 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:27,356 WARN L205 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 299 [2021-06-06 11:36:27,357 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:36:27,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:27,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:27,441 INFO L354 Elim1Store]: treesize reduction 24, result has 46.7 percent of original size [2021-06-06 11:36:27,442 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 [2021-06-06 11:36:27,445 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:27,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:27,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:27,490 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-06-06 11:36:27,490 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 [2021-06-06 11:36:27,492 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:28,725 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 287 [2021-06-06 11:36:28,726 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:36:28,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:28,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:28,809 INFO L354 Elim1Store]: treesize reduction 32, result has 28.9 percent of original size [2021-06-06 11:36:28,809 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 [2021-06-06 11:36:28,814 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:28,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:28,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:28,895 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:36:28,895 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 [2021-06-06 11:36:28,924 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:30,052 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 271 [2021-06-06 11:36:30,053 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:36:30,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:30,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:30,139 INFO L354 Elim1Store]: treesize reduction 24, result has 46.7 percent of original size [2021-06-06 11:36:30,139 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 [2021-06-06 11:36:30,146 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:30,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:30,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:30,189 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-06-06 11:36:30,190 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 48 treesize of output 1 [2021-06-06 11:36:30,190 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:32,251 WARN L205 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 261 DAG size of output: 259 [2021-06-06 11:36:32,252 INFO L628 ElimStorePlain]: treesize reduction 13, result has 99.2 percent of original size [2021-06-06 11:36:32,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:32,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:32,339 INFO L354 Elim1Store]: treesize reduction 16, result has 64.4 percent of original size [2021-06-06 11:36:32,339 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 [2021-06-06 11:36:32,362 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:32,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:32,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:32,431 INFO L354 Elim1Store]: treesize reduction 28, result has 37.8 percent of original size [2021-06-06 11:36:32,431 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 [2021-06-06 11:36:32,438 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:33,509 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 247 [2021-06-06 11:36:33,509 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:36:33,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:33,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:33,581 INFO L354 Elim1Store]: treesize reduction 24, result has 46.7 percent of original size [2021-06-06 11:36:33,581 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 [2021-06-06 11:36:33,588 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:33,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:33,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:33,629 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-06-06 11:36:33,629 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 [2021-06-06 11:36:33,630 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:34,543 WARN L205 SmtUtils]: Spent 913.00 ms on a formula simplification that was a NOOP. DAG size: 235 [2021-06-06 11:36:34,544 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:36:34,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:34,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:34,621 INFO L354 Elim1Store]: treesize reduction 14, result has 68.9 percent of original size [2021-06-06 11:36:34,621 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 [2021-06-06 11:36:34,644 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:34,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:34,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:34,734 INFO L354 Elim1Store]: treesize reduction 18, result has 60.0 percent of original size [2021-06-06 11:36:34,734 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 [2021-06-06 11:36:34,747 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:35,623 WARN L205 SmtUtils]: Spent 876.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2021-06-06 11:36:35,624 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:36:35,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:35,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:35,686 INFO L354 Elim1Store]: treesize reduction 24, result has 46.7 percent of original size [2021-06-06 11:36:35,687 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 [2021-06-06 11:36:35,693 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:35,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:35,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:35,744 INFO L354 Elim1Store]: treesize reduction 32, result has 28.9 percent of original size [2021-06-06 11:36:35,744 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 [2021-06-06 11:36:35,746 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:37,367 WARN L205 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 212 DAG size of output: 209 [2021-06-06 11:36:37,368 INFO L628 ElimStorePlain]: treesize reduction 16, result has 98.8 percent of original size [2021-06-06 11:36:37,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:37,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:37,435 INFO L354 Elim1Store]: treesize reduction 16, result has 64.4 percent of original size [2021-06-06 11:36:37,436 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 [2021-06-06 11:36:37,441 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:37,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:37,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:37,491 INFO L354 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2021-06-06 11:36:37,492 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 [2021-06-06 11:36:37,495 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:38,240 WARN L205 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-06-06 11:36:38,240 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:36:38,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:38,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:38,306 INFO L354 Elim1Store]: treesize reduction 16, result has 64.4 percent of original size [2021-06-06 11:36:38,306 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 [2021-06-06 11:36:38,312 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:38,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:38,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:38,356 INFO L354 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2021-06-06 11:36:38,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 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 [2021-06-06 11:36:38,371 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:39,778 WARN L205 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 185 DAG size of output: 181 [2021-06-06 11:36:39,779 INFO L628 ElimStorePlain]: treesize reduction 17, result has 98.7 percent of original size [2021-06-06 11:36:39,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:39,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:39,842 INFO L354 Elim1Store]: treesize reduction 12, result has 73.3 percent of original size [2021-06-06 11:36:39,843 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 [2021-06-06 11:36:39,859 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:39,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:39,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:39,881 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-06-06 11:36:39,881 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 [2021-06-06 11:36:39,882 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:40,503 WARN L205 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-06-06 11:36:40,503 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:36:40,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:40,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:40,565 INFO L354 Elim1Store]: treesize reduction 28, result has 37.8 percent of original size [2021-06-06 11:36:40,565 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 [2021-06-06 11:36:40,567 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:40,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:40,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:36:40,605 INFO L354 Elim1Store]: treesize reduction 24, result has 46.7 percent of original size [2021-06-06 11:36:40,605 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 [2021-06-06 11:36:40,628 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-06-06 11:36:41,706 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 155 DAG size of output: 154 [2021-06-06 11:36:41,707 INFO L628 ElimStorePlain]: treesize reduction 43, result has 96.1 percent of original size [2021-06-06 11:36:41,819 INFO L550 ElimStorePlain]: Start of recursive call 1: 17 dim-0 vars, 16 dim-1 vars, End of recursive call: and 26 xjuncts. [2021-06-06 11:36:41,820 INFO L247 ElimStorePlain]: Needed 33 recursive calls to eliminate 33 variables, input treesize:2177, output treesize:1228 [2021-06-06 11:36:42,058 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 25 [2021-06-06 11:36:42,138 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:36:42,139 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80908401] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:36:42,139 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 11:36:42,139 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16] total 25 [2021-06-06 11:36:42,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804152221] [2021-06-06 11:36:42,139 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-06 11:36:42,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 11:36:42,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-06 11:36:42,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2021-06-06 11:36:42,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:36:42,141 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 11:36:42,141 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) [2021-06-06 11:36:42,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:36:42,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:36:42,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 11:36:42,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:36:42,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 11:36:42,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:36:42,603 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-06-06 11:36:42,878 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2021-06-06 11:36:43,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:36:43,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:36:43,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 11:36:43,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:36:43,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 11:36:43,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 11:36:43,237 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-06-06 11:36:43,237 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 11:36:43,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 11:36:43,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1404753657, now seen corresponding path program 3 times [2021-06-06 11:36:43,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 11:36:43,238 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958375988] [2021-06-06 11:36:43,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 11:36:43,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:36:43,336 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:36:43,336 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 11:36:43,337 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958375988] [2021-06-06 11:36:43,337 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958375988] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:36:43,337 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127487553] [2021-06-06 11:36:43,337 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 [2021-06-06 11:36:43,377 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-06 11:36:43,377 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 11:36:43,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-06 11:36:43,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 11:36:43,562 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:36:43,562 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127487553] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:36:43,562 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 11:36:43,562 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-06-06 11:36:43,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530355366] [2021-06-06 11:36:43,563 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-06 11:36:43,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 11:36:43,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-06 11:36:43,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-06-06 11:36:43,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:36:43,564 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 11:36:43,564 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) [2021-06-06 11:36:43,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:36:43,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:36:43,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 11:36:43,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:36:43,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 11:36:43,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 11:36:43,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:36:44,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:36:44,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:36:44,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 11:36:44,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:36:44,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 11:36:44,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 11:36:44,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 11:36:44,225 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 11:36:44,225 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 11:36:44,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 11:36:44,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1909403317, now seen corresponding path program 4 times [2021-06-06 11:36:44,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 11:36:44,226 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800600748] [2021-06-06 11:36:44,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 11:36:44,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:36:44,307 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 11:36:44,307 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 11:36:44,307 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800600748] [2021-06-06 11:36:44,308 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800600748] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:36:44,308 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519947165] [2021-06-06 11:36:44,308 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 [2021-06-06 11:36:44,337 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 11:36:44,337 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 11:36:44,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-06 11:36:44,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 11:36:44,469 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 11:36:44,471 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519947165] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:36:44,471 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 11:36:44,471 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-06-06 11:36:44,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100155408] [2021-06-06 11:36:44,472 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-06 11:36:44,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 11:36:44,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-06 11:36:44,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-06-06 11:36:44,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:36:44,473 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 11:36:44,473 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) [2021-06-06 11:36:44,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:36:44,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:36:44,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 11:36:44,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:36:44,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 11:36:44,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 11:36:44,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-06 11:36:44,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:36:44,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:36:44,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:36:44,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 11:36:44,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:36:44,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 11:36:44,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 11:36:44,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 11:36:44,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 11:36:44,840 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable287 [2021-06-06 11:36:44,840 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 11:36:44,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 11:36:44,840 INFO L82 PathProgramCache]: Analyzing trace with hash 665523753, now seen corresponding path program 5 times [2021-06-06 11:36:44,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 11:36:44,841 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083870313] [2021-06-06 11:36:44,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 11:36:44,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:36:45,661 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 60 [2021-06-06 11:36:46,029 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 100 [2021-06-06 11:36:46,630 WARN L205 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 116 [2021-06-06 11:36:47,298 WARN L205 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 111 [2021-06-06 11:36:47,546 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2021-06-06 11:36:47,714 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 49 [2021-06-06 11:36:47,890 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:36:47,890 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 11:36:47,891 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083870313] [2021-06-06 11:36:47,891 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083870313] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:36:47,891 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759433669] [2021-06-06 11:36:47,891 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 [2021-06-06 11:36:47,940 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-06-06 11:36:47,940 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 11:36:47,941 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 48 conjunts are in the unsatisfiable core [2021-06-06 11:36:47,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 11:36:49,797 WARN L205 SmtUtils]: Spent 973.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-06-06 11:36:51,224 WARN L205 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 353 [2021-06-06 11:36:53,493 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 361 [2021-06-06 11:36:55,209 WARN L205 SmtUtils]: Spent 966.00 ms on a formula simplification that was a NOOP. DAG size: 362 [2021-06-06 11:36:56,945 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 364 [2021-06-06 11:36:58,456 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 363 [2021-06-06 11:36:59,704 WARN L205 SmtUtils]: Spent 699.00 ms on a formula simplification that was a NOOP. DAG size: 350 [2021-06-06 11:37:01,372 WARN L205 SmtUtils]: Spent 650.00 ms on a formula simplification that was a NOOP. DAG size: 349 [2021-06-06 11:37:02,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:02,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:02,214 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:37:02,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:02,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:02,224 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:37:02,244 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 [2021-06-06 11:37:02,246 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 11:37:02,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:02,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:02,295 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:37:02,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:02,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:02,300 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 [2021-06-06 11:37:02,301 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-06 11:37:07,231 WARN L205 SmtUtils]: Spent 4.93 s on a formula simplification. DAG size of input: 790 DAG size of output: 635 [2021-06-06 11:37:07,232 INFO L628 ElimStorePlain]: treesize reduction 2064, result has 44.1 percent of original size [2021-06-06 11:37:07,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:07,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:07,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:07,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:07,263 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 [2021-06-06 11:37:07,265 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-06 11:37:08,409 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 623 [2021-06-06 11:37:08,409 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:37:08,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:08,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:08,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:08,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:08,444 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 [2021-06-06 11:37:08,446 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-06 11:37:09,581 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 611 [2021-06-06 11:37:09,582 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:37:09,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:09,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:09,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:09,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:09,616 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 [2021-06-06 11:37:09,618 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-06 11:37:10,661 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 599 [2021-06-06 11:37:10,662 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:37:10,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:10,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:10,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:10,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:10,708 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 [2021-06-06 11:37:10,710 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-06 11:37:11,756 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 587 [2021-06-06 11:37:11,757 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:37:11,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:11,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:11,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:11,786 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:37:11,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:11,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:11,789 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 [2021-06-06 11:37:11,791 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-06 11:37:12,826 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 573 [2021-06-06 11:37:12,826 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:37:12,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:12,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:12,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:12,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:12,858 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 [2021-06-06 11:37:12,860 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-06 11:37:13,837 WARN L205 SmtUtils]: Spent 976.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2021-06-06 11:37:13,837 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:37:13,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:13,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:13,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:13,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:13,872 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 [2021-06-06 11:37:13,874 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-06-06 11:37:14,826 WARN L205 SmtUtils]: Spent 952.00 ms on a formula simplification that was a NOOP. DAG size: 547 [2021-06-06 11:37:14,827 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:37:14,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:14,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:14,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:14,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:14,854 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 [2021-06-06 11:37:14,857 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-06-06 11:37:15,700 WARN L205 SmtUtils]: Spent 842.00 ms on a formula simplification that was a NOOP. DAG size: 535 [2021-06-06 11:37:15,701 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:37:15,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:15,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:15,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:15,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:15,727 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 [2021-06-06 11:37:15,729 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-06-06 11:37:16,582 WARN L205 SmtUtils]: Spent 851.00 ms on a formula simplification that was a NOOP. DAG size: 522 [2021-06-06 11:37:16,582 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:37:16,582 INFO L518 ElimStorePlain]: Eliminatee v_prenex_146 vanished before elimination [2021-06-06 11:37:16,603 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:37:16,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:16,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:16,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:16,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:16,609 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 [2021-06-06 11:37:16,614 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-06-06 11:37:17,430 WARN L205 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 509 [2021-06-06 11:37:17,430 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:37:17,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:17,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:17,453 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:37:17,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:17,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:17,472 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 [2021-06-06 11:37:17,474 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-06-06 11:37:18,282 WARN L205 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 495 [2021-06-06 11:37:18,282 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:37:18,302 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:37:18,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:18,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:18,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:18,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:18,307 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 [2021-06-06 11:37:18,309 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-06-06 11:37:19,072 WARN L205 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 482 [2021-06-06 11:37:19,072 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:37:19,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:19,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:19,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:19,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:19,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:19,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:19,098 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:37:19,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:19,101 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 [2021-06-06 11:37:19,103 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-06-06 11:37:19,839 WARN L205 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 468 [2021-06-06 11:37:19,839 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:37:19,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:19,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:19,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:19,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:19,862 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:37:19,863 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 [2021-06-06 11:37:19,865 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-06-06 11:37:20,592 WARN L205 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 454 [2021-06-06 11:37:20,593 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:37:20,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:20,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:20,613 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:37:20,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:20,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:20,616 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 [2021-06-06 11:37:20,618 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-06-06 11:37:21,321 WARN L205 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 440 [2021-06-06 11:37:21,321 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:37:21,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:21,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:21,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:21,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:21,343 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 [2021-06-06 11:37:21,344 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-06-06 11:37:21,986 WARN L205 SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 427 [2021-06-06 11:37:21,987 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:37:22,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:22,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:22,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:22,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:22,010 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 [2021-06-06 11:37:22,012 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-06-06 11:37:22,613 WARN L205 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 414 [2021-06-06 11:37:22,613 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:37:22,631 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:37:22,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:22,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:22,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:22,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:22,636 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 [2021-06-06 11:37:22,637 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-06-06 11:37:23,211 WARN L205 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 400 [2021-06-06 11:37:23,211 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:37:23,227 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:37:23,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:23,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:23,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:23,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:23,233 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 [2021-06-06 11:37:23,235 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-06-06 11:37:23,776 WARN L205 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2021-06-06 11:37:23,777 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:37:23,794 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:37:23,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:23,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:23,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:23,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:23,798 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 [2021-06-06 11:37:23,800 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-06-06 11:37:24,323 WARN L205 SmtUtils]: Spent 522.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2021-06-06 11:37:24,323 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:37:24,339 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:37:24,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:24,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:24,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:24,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:24,344 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 [2021-06-06 11:37:24,347 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-06-06 11:37:24,833 WARN L205 SmtUtils]: Spent 485.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2021-06-06 11:37:24,833 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:37:24,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:24,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:24,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:24,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:24,853 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 [2021-06-06 11:37:24,854 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-06-06 11:37:25,305 WARN L205 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 346 [2021-06-06 11:37:25,305 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:37:25,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:25,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:25,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:25,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:25,326 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 [2021-06-06 11:37:25,327 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-06-06 11:37:25,758 WARN L205 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 333 [2021-06-06 11:37:25,758 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:37:25,775 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:37:25,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:25,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:25,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:25,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:25,779 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 [2021-06-06 11:37:25,780 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-06-06 11:37:26,193 WARN L205 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 319 [2021-06-06 11:37:26,193 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:37:26,207 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:37:26,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:26,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:26,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:26,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:26,211 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 [2021-06-06 11:37:26,212 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-06-06 11:37:26,614 WARN L205 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 305 [2021-06-06 11:37:26,615 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:37:26,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:26,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:26,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:26,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:26,632 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 [2021-06-06 11:37:26,634 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-06-06 11:37:27,001 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 292 [2021-06-06 11:37:27,001 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:37:27,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:27,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:27,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:27,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:27,019 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 [2021-06-06 11:37:27,020 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-06-06 11:37:27,370 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 279 [2021-06-06 11:37:27,370 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:37:27,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:27,385 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:37:27,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:27,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:27,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:27,389 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 [2021-06-06 11:37:27,390 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-06-06 11:37:27,720 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-06-06 11:37:27,720 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:37:27,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:27,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:27,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:27,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:27,737 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 [2021-06-06 11:37:27,738 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-06-06 11:37:28,049 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2021-06-06 11:37:28,049 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:37:28,061 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 11:37:28,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:28,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:28,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:28,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:37:28,065 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 [2021-06-06 11:37:28,067 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-06-06 11:37:28,353 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-06-06 11:37:28,354 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:37:28,381 INFO L550 ElimStorePlain]: Start of recursive call 1: 64 dim-0 vars, 32 dim-1 vars, End of recursive call: and 10 xjuncts. [2021-06-06 11:37:28,381 INFO L247 ElimStorePlain]: Needed 33 recursive calls to eliminate 96 variables, input treesize:3792, output treesize:71 [2021-06-06 11:37:28,506 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:37:28,507 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [759433669] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:37:28,507 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 11:37:28,507 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-06-06 11:37:28,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348851318] [2021-06-06 11:37:28,507 INFO L462 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-06-06 11:37:28,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 11:37:28,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-06-06 11:37:28,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=898, Unknown=0, NotChecked=0, Total=992 [2021-06-06 11:37:28,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:37:28,510 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 11:37:28,510 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) [2021-06-06 11:37:28,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:37:28,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:37:28,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 11:37:28,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:37:28,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 11:37:28,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 11:37:28,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-06 11:37:28,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 11:37:28,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 11:37:28,924 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 33 [2021-06-06 11:37:29,351 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 41 [2021-06-06 11:37:29,866 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 63 [2021-06-06 11:37:30,068 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 57 [2021-06-06 11:37:30,404 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 58 [2021-06-06 11:37:30,711 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 83 [2021-06-06 11:37:31,642 WARN L205 SmtUtils]: Spent 716.00 ms on a formula simplification. DAG size of input: 541 DAG size of output: 125 [2021-06-06 11:37:33,819 WARN L205 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 206 DAG size of output: 121 [2021-06-06 11:37:37,321 WARN L205 SmtUtils]: Spent 3.24 s on a formula simplification. DAG size of input: 513 DAG size of output: 160 [2021-06-06 11:37:38,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 11:37:38,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 11:37:38,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 11:37:38,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 11:37:38,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 11:37:38,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 11:37:38,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 11:37:38,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 11:37:38,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 11:37:38,280 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable288 [2021-06-06 11:37:38,280 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 11:37:38,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 11:37:38,281 INFO L82 PathProgramCache]: Analyzing trace with hash 440189797, now seen corresponding path program 6 times [2021-06-06 11:37:38,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 11:37:38,281 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161172879] [2021-06-06 11:37:38,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 11:37:38,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 11:37:38,997 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2021-06-06 11:37:39,413 WARN L205 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 114 [2021-06-06 11:37:39,855 WARN L205 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 117 [2021-06-06 11:37:40,437 WARN L205 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 138 [2021-06-06 11:37:40,911 WARN L205 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 106 [2021-06-06 11:37:41,125 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2021-06-06 11:37:41,481 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 11:37:41,482 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 11:37:41,482 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161172879] [2021-06-06 11:37:41,482 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161172879] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 11:37:41,482 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1789334686] [2021-06-06 11:37:41,482 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 [2021-06-06 11:37:41,547 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-06-06 11:37:41,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 11:37:41,549 WARN L261 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 59 conjunts are in the unsatisfiable core [2021-06-06 11:37:41,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 11:37:42,234 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-06-06 11:37:42,433 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-06-06 11:37:45,930 WARN L205 SmtUtils]: Spent 2.71 s on a formula simplification that was a NOOP. DAG size: 168 [2021-06-06 11:37:49,833 WARN L205 SmtUtils]: Spent 3.01 s on a formula simplification that was a NOOP. DAG size: 669 [2021-06-06 11:37:55,735 WARN L205 SmtUtils]: Spent 3.13 s on a formula simplification that was a NOOP. DAG size: 678 [2021-06-06 11:38:00,264 WARN L205 SmtUtils]: Spent 2.71 s on a formula simplification that was a NOOP. DAG size: 679 [2021-06-06 11:38:04,981 WARN L205 SmtUtils]: Spent 3.11 s on a formula simplification that was a NOOP. DAG size: 681 [2021-06-06 11:38:09,352 WARN L205 SmtUtils]: Spent 3.37 s on a formula simplification that was a NOOP. DAG size: 682 [2021-06-06 11:38:13,860 WARN L205 SmtUtils]: Spent 3.16 s on a formula simplification that was a NOOP. DAG size: 685 [2021-06-06 11:38:17,351 WARN L205 SmtUtils]: Spent 2.30 s on a formula simplification that was a NOOP. DAG size: 684 [2021-06-06 11:38:19,111 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 1064 DAG size of output: 1064 [2021-06-06 11:38:19,325 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 1447 DAG size of output: 1447 [2021-06-06 11:38:19,456 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 1447 DAG size of output: 1447 [2021-06-06 11:38:28,072 WARN L205 SmtUtils]: Spent 7.12 s on a formula simplification. DAG size of input: 1447 DAG size of output: 1075 [2021-06-06 11:38:32,344 WARN L205 SmtUtils]: Spent 2.68 s on a formula simplification that was a NOOP. DAG size: 1077 [2021-06-06 11:38:38,704 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]} [2021-06-06 11:38:38,920 INFO L244 Elim1Store]: Index analysis took 125 ms [2021-06-06 11:38:39,502 WARN L205 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-06 11:38:39,502 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-06 11:38:39,503 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 [2021-06-06 11:38:39,538 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 11:38:40,181 WARN L205 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2021-06-06 11:38:40,182 INFO L354 Elim1Store]: treesize reduction 40, result has 55.1 percent of original size [2021-06-06 11:38:40,182 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 [2021-06-06 11:38:40,184 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-06 11:39:08,256 WARN L205 SmtUtils]: Spent 28.07 s on a formula simplification that was a NOOP. DAG size: 1817 [2021-06-06 11:39:08,257 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:39:08,568 INFO L244 Elim1Store]: Index analysis took 219 ms [2021-06-06 11:39:08,908 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-06-06 11:39:08,909 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:39:08,909 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 [2021-06-06 11:39:09,151 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-06 11:39:09,357 INFO L244 Elim1Store]: Index analysis took 102 ms [2021-06-06 11:39:10,257 WARN L205 SmtUtils]: Spent 897.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-06 11:39:10,257 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-06 11:39:10,257 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 58 treesize of output 92 [2021-06-06 11:39:10,272 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-06 11:40:07,710 WARN L205 SmtUtils]: Spent 57.44 s on a formula simplification. DAG size of input: 1822 DAG size of output: 1801 [2021-06-06 11:40:07,713 INFO L628 ElimStorePlain]: treesize reduction 95, result has 99.0 percent of original size [2021-06-06 11:40:07,990 INFO L244 Elim1Store]: Index analysis took 181 ms [2021-06-06 11:40:08,427 WARN L205 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2021-06-06 11:40:08,427 INFO L354 Elim1Store]: treesize reduction 40, result has 55.1 percent of original size [2021-06-06 11:40:08,427 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 [2021-06-06 11:40:08,430 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-06 11:40:08,649 INFO L244 Elim1Store]: Index analysis took 127 ms [2021-06-06 11:40:09,394 WARN L205 SmtUtils]: Spent 741.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-06 11:40:09,394 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-06 11:40:09,394 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 [2021-06-06 11:40:09,405 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-06 11:41:07,322 WARN L205 SmtUtils]: Spent 57.91 s on a formula simplification. DAG size of input: 1800 DAG size of output: 1797 [2021-06-06 11:41:07,325 INFO L628 ElimStorePlain]: treesize reduction 14, result has 99.9 percent of original size [2021-06-06 11:41:07,680 INFO L244 Elim1Store]: Index analysis took 268 ms [2021-06-06 11:41:08,078 WARN L205 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-06-06 11:41:08,079 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:41:08,079 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 [2021-06-06 11:41:08,545 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-06 11:41:09,279 WARN L205 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-06 11:41:09,279 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-06 11:41:09,279 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 [2021-06-06 11:41:09,319 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-06 11:42:07,344 WARN L205 SmtUtils]: Spent 58.02 s on a formula simplification. DAG size of input: 1839 DAG size of output: 1780 [2021-06-06 11:42:07,348 INFO L628 ElimStorePlain]: treesize reduction 411, result has 95.9 percent of original size [2021-06-06 11:42:07,625 INFO L244 Elim1Store]: Index analysis took 190 ms [2021-06-06 11:42:08,075 WARN L205 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-06 11:42:08,076 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-06 11:42:08,076 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 [2021-06-06 11:42:08,108 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-06-06 11:42:08,300 INFO L244 Elim1Store]: Index analysis took 101 ms [2021-06-06 11:42:08,751 WARN L205 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2021-06-06 11:42:08,752 INFO L354 Elim1Store]: treesize reduction 40, result has 55.1 percent of original size [2021-06-06 11:42:08,752 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 [2021-06-06 11:42:08,754 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-06-06 11:43:07,230 WARN L205 SmtUtils]: Spent 58.47 s on a formula simplification. DAG size of input: 1783 DAG size of output: 1777 [2021-06-06 11:43:07,233 INFO L628 ElimStorePlain]: treesize reduction 40, result has 99.6 percent of original size [2021-06-06 11:43:07,467 INFO L244 Elim1Store]: Index analysis took 146 ms [2021-06-06 11:43:07,852 WARN L205 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-06 11:43:07,852 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-06 11:43:07,853 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 [2021-06-06 11:43:07,873 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-06-06 11:43:08,458 WARN L205 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2021-06-06 11:43:08,459 INFO L354 Elim1Store]: treesize reduction 40, result has 55.1 percent of original size [2021-06-06 11:43:08,459 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 [2021-06-06 11:43:08,462 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-06-06 11:43:36,743 WARN L205 SmtUtils]: Spent 28.28 s on a formula simplification that was a NOOP. DAG size: 1773 [2021-06-06 11:43:36,744 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:43:37,029 INFO L244 Elim1Store]: Index analysis took 196 ms [2021-06-06 11:43:37,578 WARN L205 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2021-06-06 11:43:37,578 INFO L354 Elim1Store]: treesize reduction 40, result has 55.1 percent of original size [2021-06-06 11:43:37,578 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 [2021-06-06 11:43:37,581 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-06-06 11:43:38,158 WARN L205 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-06 11:43:38,158 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-06 11:43:38,158 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 [2021-06-06 11:43:38,196 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-06-06 11:44:35,075 WARN L205 SmtUtils]: Spent 56.88 s on a formula simplification. DAG size of input: 1772 DAG size of output: 1768 [2021-06-06 11:44:35,079 INFO L628 ElimStorePlain]: treesize reduction 34, result has 99.6 percent of original size [2021-06-06 11:44:35,326 INFO L244 Elim1Store]: Index analysis took 161 ms [2021-06-06 11:44:35,770 WARN L205 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-06 11:44:35,770 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-06 11:44:35,770 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 [2021-06-06 11:44:35,792 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-06-06 11:44:36,673 WARN L205 SmtUtils]: Spent 692.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2021-06-06 11:44:36,673 INFO L354 Elim1Store]: treesize reduction 40, result has 55.1 percent of original size [2021-06-06 11:44:36,673 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 56 treesize of output 76 [2021-06-06 11:44:36,676 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-06-06 11:45:33,483 WARN L205 SmtUtils]: Spent 56.80 s on a formula simplification. DAG size of input: 1766 DAG size of output: 1762 [2021-06-06 11:45:33,486 INFO L628 ElimStorePlain]: treesize reduction 30, result has 99.7 percent of original size [2021-06-06 11:45:33,736 INFO L244 Elim1Store]: Index analysis took 161 ms [2021-06-06 11:45:34,077 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-06-06 11:45:34,078 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:45:34,078 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 [2021-06-06 11:45:34,344 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-06-06 11:45:34,660 INFO L244 Elim1Store]: Index analysis took 228 ms [2021-06-06 11:45:35,337 WARN L205 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-06 11:45:35,337 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-06 11:45:35,337 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 [2021-06-06 11:45:35,349 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-06-06 11:46:33,094 WARN L205 SmtUtils]: Spent 57.74 s on a formula simplification. DAG size of input: 1769 DAG size of output: 1745 [2021-06-06 11:46:33,097 INFO L628 ElimStorePlain]: treesize reduction 138, result has 98.6 percent of original size [2021-06-06 11:46:33,343 INFO L244 Elim1Store]: Index analysis took 160 ms [2021-06-06 11:46:33,868 WARN L205 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-06 11:46:33,868 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-06 11:46:33,868 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 [2021-06-06 11:46:33,889 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-06-06 11:46:34,367 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-06-06 11:46:34,368 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 11:46:34,368 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 [2021-06-06 11:46:34,797 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-06-06 11:47:33,481 WARN L205 SmtUtils]: Spent 58.68 s on a formula simplification. DAG size of input: 1755 DAG size of output: 1728 [2021-06-06 11:47:33,504 INFO L628 ElimStorePlain]: treesize reduction 152, result has 98.4 percent of original size [2021-06-06 11:47:33,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:47:33,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:47:33,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:47:33,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:47:33,789 INFO L244 Elim1Store]: Index analysis took 197 ms [2021-06-06 11:47:34,383 WARN L205 SmtUtils]: Spent 590.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2021-06-06 11:47:34,383 INFO L354 Elim1Store]: treesize reduction 40, result has 55.1 percent of original size [2021-06-06 11:47:34,383 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 [2021-06-06 11:47:34,386 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-06-06 11:47:34,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:47:34,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:47:34,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:47:34,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 11:47:34,573 INFO L244 Elim1Store]: Index analysis took 101 ms [2021-06-06 11:47:34,973 WARN L205 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-06-06 11:47:34,973 INFO L354 Elim1Store]: treesize reduction 24, result has 73.0 percent of original size [2021-06-06 11:47:34,974 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 [2021-06-06 11:47:35,016 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-06-06 11:48:05,056 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 [2021-06-06 11:48:05,079 WARN L348 FreeRefinementEngine]: Global settings require throwing the following exception [2021-06-06 11:48:05,280 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable444 [2021-06-06 11:48:05,281 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:393) 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:649) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:184) 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:643) 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:364) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:293) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:238) ... 56 more [2021-06-06 11:48:05,286 INFO L168 Benchmark]: Toolchain (without parser) took 715725.51 ms. Allocated memory was 331.4 MB in the beginning and 478.2 MB in the end (delta: 146.8 MB). Free memory was 310.9 MB in the beginning and 382.0 MB in the end (delta: -71.1 MB). Peak memory consumption was 298.5 MB. Max. memory is 16.0 GB. [2021-06-06 11:48:05,286 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.16 ms. Allocated memory is still 331.4 MB. Free memory was 312.0 MB in the beginning and 312.0 MB in the end (delta: 69.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-06 11:48:05,287 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.53 ms. Allocated memory is still 331.4 MB. Free memory was 310.8 MB in the beginning and 309.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-06 11:48:05,287 INFO L168 Benchmark]: Boogie Preprocessor took 23.71 ms. Allocated memory is still 331.4 MB. Free memory was 309.3 MB in the beginning and 308.4 MB in the end (delta: 960.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-06 11:48:05,287 INFO L168 Benchmark]: RCFGBuilder took 269.62 ms. Allocated memory is still 331.4 MB. Free memory was 308.3 MB in the beginning and 295.4 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-06-06 11:48:05,287 INFO L168 Benchmark]: TraceAbstraction took 715400.13 ms. Allocated memory was 331.4 MB in the beginning and 478.2 MB in the end (delta: 146.8 MB). Free memory was 295.0 MB in the beginning and 382.0 MB in the end (delta: -87.1 MB). Peak memory consumption was 281.7 MB. Max. memory is 16.0 GB. [2021-06-06 11:48:05,287 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.16 ms. Allocated memory is still 331.4 MB. Free memory was 312.0 MB in the beginning and 312.0 MB in the end (delta: 69.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 26.53 ms. Allocated memory is still 331.4 MB. Free memory was 310.8 MB in the beginning and 309.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 23.71 ms. Allocated memory is still 331.4 MB. Free memory was 309.3 MB in the beginning and 308.4 MB in the end (delta: 960.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 269.62 ms. Allocated memory is still 331.4 MB. Free memory was 308.3 MB in the beginning and 295.4 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 715400.13 ms. Allocated memory was 331.4 MB in the beginning and 478.2 MB in the end (delta: 146.8 MB). Free memory was 295.0 MB in the beginning and 382.0 MB in the end (delta: -87.1 MB). Peak memory consumption was 281.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: 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...