/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-fun.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 21:38:56,768 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 21:38:56,770 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 21:38:56,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 21:38:56,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 21:38:56,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 21:38:56,818 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 21:38:56,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 21:38:56,821 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 21:38:56,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 21:38:56,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 21:38:56,827 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 21:38:56,828 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 21:38:56,829 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 21:38:56,829 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 21:38:56,831 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 21:38:56,835 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-14 21:38:56,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-14 21:38:56,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-14 21:38:56,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-14 21:38:56,845 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf [2021-07-14 21:38:56,880 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 21:38:56,880 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 21:38:56,880 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 21:38:56,880 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 21:38:56,882 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 21:38:56,882 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 21:38:56,882 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 21:38:56,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 21:38:56,883 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 21:38:56,883 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 21:38:56,883 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 21:38:56,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 21:38:56,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 21:38:56,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 21:38:56,884 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 21:38:56,884 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 21:38:56,884 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 21:38:56,884 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 21:38:56,884 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 21:38:56,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 21:38:56,884 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 21:38:56,885 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 21:38:56,885 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 21:38:56,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 21:38:56,885 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 21:38:56,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 21:38:56,885 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 21:38:56,885 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 21:38:56,885 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-07-14 21:38:56,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 21:38:56,886 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 21:38:56,886 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 21:38:56,886 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 21:38:56,886 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-14 21:38:56,886 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-14 21:38:56,886 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 21:38:57,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 21:38:57,144 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 21:38:57,145 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 21:38:57,146 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 21:38:57,147 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 21:38:57,147 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-fun.wvr.bpl [2021-07-14 21:38:57,148 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-fun.wvr.bpl' [2021-07-14 21:38:57,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 21:38:57,169 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 21:38:57,173 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 21:38:57,173 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 21:38:57,173 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 21:38:57,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:38:57" (1/1) ... [2021-07-14 21:38:57,209 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:38:57" (1/1) ... [2021-07-14 21:38:57,215 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 21:38:57,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 21:38:57,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 21:38:57,217 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 21:38:57,222 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:38:57" (1/1) ... [2021-07-14 21:38:57,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:38:57" (1/1) ... [2021-07-14 21:38:57,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:38:57" (1/1) ... [2021-07-14 21:38:57,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:38:57" (1/1) ... [2021-07-14 21:38:57,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:38:57" (1/1) ... [2021-07-14 21:38:57,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:38:57" (1/1) ... [2021-07-14 21:38:57,232 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:38:57" (1/1) ... [2021-07-14 21:38:57,235 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 21:38:57,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 21:38:57,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 21:38:57,237 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 21:38:57,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:38:57" (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 [2021-07-14 21:38:57,287 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 21:38:57,287 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 21:38:57,287 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 21:38:57,287 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 21:38:57,287 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 21:38:57,287 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 21:38:57,288 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 21:38:57,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 21:38:57,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 21:38:57,288 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 21:38:57,288 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 21:38:57,288 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 21:38:57,289 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 21:38:57,510 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 21:38:57,510 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 21:38:57,511 INFO L202 PluginConnector]: Adding new model max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 09:38:57 BoogieIcfgContainer [2021-07-14 21:38:57,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 21:38:57,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 21:38:57,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 21:38:57,515 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 21:38:57,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:38:57" (1/2) ... [2021-07-14 21:38:57,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ecda91d and model type max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 09:38:57, skipping insertion in model container [2021-07-14 21:38:57,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 09:38:57" (2/2) ... [2021-07-14 21:38:57,517 INFO L111 eAbstractionObserver]: Analyzing ICFG max-fun.wvr.bpl [2021-07-14 21:38:57,520 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 21:38:57,521 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 21:38:57,521 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 21:38:57,522 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 21:38:57,575 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-14 21:38:57,593 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 [2021-07-14 21:38:57,643 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 21:38:57,644 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 21:38:57,644 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 21:38:57,644 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 21:38:57,644 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 21:38:57,644 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 21:38:57,644 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 21:38:57,644 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 21:38:57,722 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:38:57,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:38:57,727 INFO L82 PathProgramCache]: Analyzing trace with hash -1056010628, now seen corresponding path program 1 times [2021-07-14 21:38:57,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:38:57,733 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217067631] [2021-07-14 21:38:57,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:38:57,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:38:57,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:38:57,892 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:38:57,893 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217067631] [2021-07-14 21:38:57,893 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217067631] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 21:38:57,893 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 21:38:57,894 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-14 21:38:57,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288398421] [2021-07-14 21:38:57,897 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 21:38:57,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:38:57,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 21:38:57,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 21:38:57,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:38:57,908 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:38:57,909 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) [2021-07-14 21:38:57,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:38:57,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:38:57,925 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 21:38:57,925 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:38:57,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:38:57,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1283631334, now seen corresponding path program 1 times [2021-07-14 21:38:57,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:38:57,928 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768238865] [2021-07-14 21:38:57,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:38:57,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:38:57,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 21:38:57,965 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:38:57,965 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768238865] [2021-07-14 21:38:57,965 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768238865] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 21:38:57,965 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 21:38:57,965 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-14 21:38:57,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977539537] [2021-07-14 21:38:57,966 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-14 21:38:57,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:38:57,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-14 21:38:57,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-14 21:38:57,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:38:57,967 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:38:57,967 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) [2021-07-14 21:38:57,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:38:57,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:38:58,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:38:58,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:38:58,019 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-14 21:38:58,019 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:38:58,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:38:58,020 INFO L82 PathProgramCache]: Analyzing trace with hash -1880625638, now seen corresponding path program 1 times [2021-07-14 21:38:58,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:38:58,021 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372513237] [2021-07-14 21:38:58,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:38:58,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:38:58,065 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 21:38:58,065 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:38:58,065 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372513237] [2021-07-14 21:38:58,065 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372513237] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 21:38:58,066 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 21:38:58,066 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-14 21:38:58,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874285281] [2021-07-14 21:38:58,066 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-14 21:38:58,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:38:58,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-14 21:38:58,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-07-14 21:38:58,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:38:58,067 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:38:58,067 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 4.0) 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) [2021-07-14 21:38:58,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:38:58,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:38:58,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:38:58,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:38:58,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:38:58,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:38:58,120 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-14 21:38:58,120 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:38:58,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:38:58,122 INFO L82 PathProgramCache]: Analyzing trace with hash 830293816, now seen corresponding path program 1 times [2021-07-14 21:38:58,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:38:58,123 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755732594] [2021-07-14 21:38:58,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:38:58,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:38:58,405 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:38:58,405 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:38:58,405 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755732594] [2021-07-14 21:38:58,406 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755732594] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:38:58,406 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548263612] [2021-07-14 21:38:58,406 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 [2021-07-14 21:38:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:38:58,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 21 conjunts are in the unsatisfiable core [2021-07-14 21:38:58,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:38:58,830 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-14 21:38:58,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 14 [2021-07-14 21:38:58,832 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:38:58,839 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:38:58,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 21 [2021-07-14 21:38:58,841 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-14 21:38:58,891 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:38:58,901 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:38:58,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2021-07-14 21:38:58,907 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 21:38:58,914 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-14 21:38:58,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 14 [2021-07-14 21:38:58,916 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-14 21:38:58,961 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:38:58,969 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-07-14 21:38:58,969 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:133, output treesize:83 [2021-07-14 21:38:59,068 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:38:59,068 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548263612] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:38:59,068 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:38:59,069 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-07-14 21:38:59,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244150654] [2021-07-14 21:38:59,069 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-14 21:38:59,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:38:59,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-14 21:38:59,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-07-14 21:38:59,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:38:59,070 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:38:59,070 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:38:59,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:38:59,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:38:59,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:38:59,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:38:59,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:38:59,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:38:59,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:38:59,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:38:59,564 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:38:59,565 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:38:59,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:38:59,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1021259562, now seen corresponding path program 2 times [2021-07-14 21:38:59,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:38:59,566 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97494685] [2021-07-14 21:38:59,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:38:59,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:38:59,610 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:38:59,610 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:38:59,610 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97494685] [2021-07-14 21:38:59,610 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97494685] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:38:59,611 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85029901] [2021-07-14 21:38:59,611 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 [2021-07-14 21:38:59,657 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 21:38:59,657 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:38:59,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-14 21:38:59,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:38:59,737 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:38:59,737 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85029901] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:38:59,737 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:38:59,737 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-07-14 21:38:59,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503013934] [2021-07-14 21:38:59,738 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-14 21:38:59,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:38:59,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-14 21:38:59,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-07-14 21:38:59,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:38:59,739 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:38:59,739 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 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) [2021-07-14 21:38:59,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:38:59,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:38:59,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:38:59,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:38:59,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:38:59,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:38:59,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:38:59,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:38:59,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:38:59,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:39:00,105 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:39:00,105 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:39:00,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:39:00,105 INFO L82 PathProgramCache]: Analyzing trace with hash -925346888, now seen corresponding path program 1 times [2021-07-14 21:39:00,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:39:00,106 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500921039] [2021-07-14 21:39:00,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:39:00,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:39:00,576 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:39:00,576 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:39:00,576 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500921039] [2021-07-14 21:39:00,576 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500921039] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:39:00,576 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633918015] [2021-07-14 21:39:00,576 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) [2021-07-14 21:39:00,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:39:00,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 30 conjunts are in the unsatisfiable core [2021-07-14 21:39:00,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:39:01,316 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-07-14 21:39:01,616 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 49 [2021-07-14 21:39:01,744 INFO L446 ElimStorePlain]: Different costs {1=[A, v_prenex_14], 2=[v_prenex_13, v_prenex_15]} [2021-07-14 21:39:01,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:01,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-07-14 21:39:01,760 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:01,879 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2021-07-14 21:39:01,880 INFO L628 ElimStorePlain]: treesize reduction 54, result has 71.7 percent of original size [2021-07-14 21:39:01,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:01,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2021-07-14 21:39:01,886 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:01,930 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:01,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:01,935 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:01,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-07-14 21:39:01,937 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:01,978 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:01,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:01,985 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:01,987 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:01,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-07-14 21:39:01,988 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:01,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:01,992 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:01,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-07-14 21:39:01,994 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:02,028 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:02,032 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 4 dim-1 vars, End of recursive call: and 5 xjuncts. [2021-07-14 21:39:02,032 INFO L247 ElimStorePlain]: Needed 6 recursive calls to eliminate 7 variables, input treesize:205, output treesize:51 [2021-07-14 21:39:02,106 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:39:02,107 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633918015] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:39:02,107 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:39:02,107 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 19 [2021-07-14 21:39:02,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692174006] [2021-07-14 21:39:02,107 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-14 21:39:02,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:39:02,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-14 21:39:02,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2021-07-14 21:39:02,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:39:02,108 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:39:02,108 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 2.263157894736842) internal successors, (43), 19 states have internal predecessors, (43), 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) [2021-07-14 21:39:02,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:39:02,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:39:02,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:39:02,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:39:02,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:39:02,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:39:03,199 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 57 [2021-07-14 21:39:03,385 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 56 [2021-07-14 21:39:03,672 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 52 [2021-07-14 21:39:03,881 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-07-14 21:39:04,166 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 82 [2021-07-14 21:39:04,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:39:04,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:39:04,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:39:04,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:39:04,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:39:04,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:39:04,508 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:39:04,509 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:39:04,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:39:04,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1682038358, now seen corresponding path program 2 times [2021-07-14 21:39:04,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:39:04,510 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813647413] [2021-07-14 21:39:04,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:39:04,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:39:04,564 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:39:04,564 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:39:04,564 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813647413] [2021-07-14 21:39:04,564 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813647413] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:39:04,564 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350251619] [2021-07-14 21:39:04,564 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 [2021-07-14 21:39:04,592 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 21:39:04,592 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:39:04,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-14 21:39:04,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:39:04,691 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:39:04,692 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350251619] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:39:04,692 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:39:04,692 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2021-07-14 21:39:04,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607577672] [2021-07-14 21:39:04,692 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-14 21:39:04,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:39:04,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-14 21:39:04,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-07-14 21:39:04,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:39:04,693 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:39:04,693 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:39:04,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:39:04,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:39:04,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:39:04,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:39:04,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:39:04,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:39:04,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:39:04,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:39:04,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:39:04,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:39:04,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:39:04,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:39:04,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:39:04,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:39:05,132 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-07-14 21:39:05,133 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:39:05,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:39:05,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1511259848, now seen corresponding path program 3 times [2021-07-14 21:39:05,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:39:05,134 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113673548] [2021-07-14 21:39:05,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:39:05,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:39:05,802 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 76 [2021-07-14 21:39:06,084 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2021-07-14 21:39:06,245 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2021-07-14 21:39:06,376 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2021-07-14 21:39:06,625 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 35 [2021-07-14 21:39:06,670 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:39:06,670 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:39:06,670 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113673548] [2021-07-14 21:39:06,670 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113673548] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:39:06,671 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476484463] [2021-07-14 21:39:06,671 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 [2021-07-14 21:39:06,702 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-07-14 21:39:06,702 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:39:06,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 35 conjunts are in the unsatisfiable core [2021-07-14 21:39:06,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:39:07,231 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-07-14 21:39:07,434 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-07-14 21:39:08,034 WARN L205 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-07-14 21:39:08,809 WARN L205 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 103 [2021-07-14 21:39:09,492 WARN L205 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 116 [2021-07-14 21:39:09,752 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_52], 1=[v_prenex_64], 5=[A, v_prenex_54, v_prenex_53, v_prenex_63, v_prenex_62, v_prenex_56, v_prenex_55, v_prenex_59]} [2021-07-14 21:39:09,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-07-14 21:39:09,763 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:10,032 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 125 [2021-07-14 21:39:10,033 INFO L628 ElimStorePlain]: treesize reduction 163, result has 66.9 percent of original size [2021-07-14 21:39:10,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:10,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2021-07-14 21:39:10,048 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:10,161 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2021-07-14 21:39:10,162 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:10,162 INFO L518 ElimStorePlain]: Eliminatee A vanished before elimination [2021-07-14 21:39:10,162 INFO L518 ElimStorePlain]: Eliminatee v_prenex_54 vanished before elimination [2021-07-14 21:39:10,168 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:10,183 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-07-14 21:39:10,183 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 27 [2021-07-14 21:39:10,184 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:10,307 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-07-14 21:39:10,307 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:10,314 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:10,326 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:10,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 35 [2021-07-14 21:39:10,330 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:10,443 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-07-14 21:39:10,443 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:10,449 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:10,466 INFO L354 Elim1Store]: treesize reduction 4, result has 76.5 percent of original size [2021-07-14 21:39:10,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 31 [2021-07-14 21:39:10,468 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:10,579 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-07-14 21:39:10,579 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:10,598 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:10,611 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:10,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 40 treesize of output 38 [2021-07-14 21:39:10,615 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:10,725 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-07-14 21:39:10,725 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:10,730 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:10,732 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:10,745 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-07-14 21:39:10,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 24 [2021-07-14 21:39:10,747 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:10,758 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:10,770 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-07-14 21:39:10,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 27 [2021-07-14 21:39:10,772 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:10,867 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:10,872 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:10,885 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-07-14 21:39:10,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 27 [2021-07-14 21:39:10,886 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:10,980 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:11,006 INFO L550 ElimStorePlain]: Start of recursive call 1: 16 dim-0 vars, 10 dim-1 vars, End of recursive call: and 9 xjuncts. [2021-07-14 21:39:11,006 INFO L247 ElimStorePlain]: Needed 10 recursive calls to eliminate 26 variables, input treesize:506, output treesize:105 [2021-07-14 21:39:11,112 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:39:11,113 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476484463] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:39:11,113 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:39:11,113 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 25 [2021-07-14 21:39:11,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752659390] [2021-07-14 21:39:11,113 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-14 21:39:11,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:39:11,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-14 21:39:11,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2021-07-14 21:39:11,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:39:11,114 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:39:11,115 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) [2021-07-14 21:39:11,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:39:11,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:39:11,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:39:11,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:39:11,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:39:11,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:39:11,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:39:11,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:39:11,662 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 48 [2021-07-14 21:39:12,053 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 50 [2021-07-14 21:39:12,559 WARN L205 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 64 [2021-07-14 21:39:12,927 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 74 [2021-07-14 21:39:13,325 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 109 [2021-07-14 21:39:13,939 WARN L205 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 91 [2021-07-14 21:39:14,740 WARN L205 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 88 [2021-07-14 21:39:15,627 WARN L205 SmtUtils]: Spent 786.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 141 [2021-07-14 21:39:16,475 WARN L205 SmtUtils]: Spent 757.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 120 [2021-07-14 21:39:17,568 WARN L205 SmtUtils]: Spent 955.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 139 [2021-07-14 21:39:19,768 WARN L205 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 236 DAG size of output: 176 [2021-07-14 21:39:19,972 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2021-07-14 21:39:20,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:39:20,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:39:20,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:39:20,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:39:20,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:39:20,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:39:20,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:39:20,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:39:20,220 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:39:20,220 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:39:20,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:39:20,221 INFO L82 PathProgramCache]: Analyzing trace with hash 104008918, now seen corresponding path program 4 times [2021-07-14 21:39:20,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:39:20,222 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023140044] [2021-07-14 21:39:20,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:39:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:39:20,292 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:39:20,292 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:39:20,292 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023140044] [2021-07-14 21:39:20,293 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023140044] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:39:20,293 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779163659] [2021-07-14 21:39:20,293 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 [2021-07-14 21:39:20,322 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 21:39:20,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:39:20,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-14 21:39:20,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:39:20,452 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:39:20,452 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779163659] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:39:20,452 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:39:20,453 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 19 [2021-07-14 21:39:20,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116567651] [2021-07-14 21:39:20,453 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-14 21:39:20,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:39:20,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-14 21:39:20,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2021-07-14 21:39:20,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:39:20,454 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:39:20,454 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 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) [2021-07-14 21:39:20,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:39:20,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:39:20,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:39:20,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:39:20,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:39:20,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:39:20,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:39:20,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:39:20,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:39:20,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:39:20,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:39:20,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:39:20,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:39:20,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:39:20,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:39:20,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:39:20,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:39:20,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:39:20,937 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2021-07-14 21:39:20,938 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:39:20,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:39:20,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1874096200, now seen corresponding path program 5 times [2021-07-14 21:39:20,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:39:20,938 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479954209] [2021-07-14 21:39:20,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:39:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:39:21,621 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2021-07-14 21:39:22,201 WARN L205 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 103 [2021-07-14 21:39:22,778 WARN L205 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 102 [2021-07-14 21:39:23,155 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 91 [2021-07-14 21:39:23,505 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 85 [2021-07-14 21:39:23,666 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 51 [2021-07-14 21:39:23,933 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:39:23,933 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:39:23,933 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479954209] [2021-07-14 21:39:23,933 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479954209] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:39:23,934 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670184391] [2021-07-14 21:39:23,934 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 [2021-07-14 21:39:23,969 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-07-14 21:39:23,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:39:23,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 43 conjunts are in the unsatisfiable core [2021-07-14 21:39:23,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:39:24,666 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-07-14 21:39:25,328 WARN L205 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-07-14 21:39:26,916 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 220 [2021-07-14 21:39:28,960 WARN L205 SmtUtils]: Spent 1.36 s on a formula simplification that was a NOOP. DAG size: 484 [2021-07-14 21:39:32,804 WARN L205 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 519 DAG size of output: 485 [2021-07-14 21:39:36,137 WARN L205 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 525 DAG size of output: 489 [2021-07-14 21:39:38,564 WARN L205 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 488 DAG size of output: 333 [2021-07-14 21:39:38,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:38,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:38,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:38,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:38,779 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:38,788 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:38,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2021-07-14 21:39:38,793 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:38,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:38,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:38,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:38,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:38,818 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:38,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 25 [2021-07-14 21:39:38,821 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:40,044 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 417 DAG size of output: 394 [2021-07-14 21:39:40,045 INFO L628 ElimStorePlain]: treesize reduction 118, result has 89.9 percent of original size [2021-07-14 21:39:40,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:40,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:40,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:40,064 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:40,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:40,072 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:40,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2021-07-14 21:39:40,077 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:40,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:40,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:40,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:40,105 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:40,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:40,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-07-14 21:39:40,109 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:40,630 WARN L205 SmtUtils]: Spent 520.00 ms on a formula simplification that was a NOOP. DAG size: 383 [2021-07-14 21:39:40,630 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:40,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:40,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:40,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:40,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 19 [2021-07-14 21:39:40,653 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:41,174 WARN L205 SmtUtils]: Spent 521.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2021-07-14 21:39:41,174 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:41,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:41,191 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:41,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:41,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:41,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2021-07-14 21:39:41,195 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:41,692 WARN L205 SmtUtils]: Spent 497.00 ms on a formula simplification that was a NOOP. DAG size: 361 [2021-07-14 21:39:41,693 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:41,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:41,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:41,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:41,712 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:41,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:41,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-07-14 21:39:41,714 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:42,182 WARN L205 SmtUtils]: Spent 467.00 ms on a formula simplification that was a NOOP. DAG size: 349 [2021-07-14 21:39:42,183 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:42,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:42,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:42,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:42,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2021-07-14 21:39:42,217 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:42,681 WARN L205 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 338 [2021-07-14 21:39:42,682 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:42,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:42,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:42,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:42,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2021-07-14 21:39:42,705 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:43,135 WARN L205 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 327 [2021-07-14 21:39:43,135 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:43,149 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:43,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:43,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:43,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:43,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2021-07-14 21:39:43,154 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:43,590 WARN L205 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 314 [2021-07-14 21:39:43,590 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:43,603 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:43,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:43,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:43,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:43,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-07-14 21:39:43,607 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:44,003 WARN L205 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2021-07-14 21:39:44,003 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:44,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:44,017 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:44,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:44,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:44,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-07-14 21:39:44,021 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:44,412 WARN L205 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 288 [2021-07-14 21:39:44,413 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:44,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:44,427 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:44,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:44,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:44,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 25 [2021-07-14 21:39:44,431 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:44,794 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 275 [2021-07-14 21:39:44,794 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:44,811 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:44,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:44,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:44,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:44,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-07-14 21:39:44,815 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:45,154 WARN L205 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2021-07-14 21:39:45,154 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:45,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:45,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:45,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:45,169 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:45,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 25 [2021-07-14 21:39:45,173 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:45,520 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 249 [2021-07-14 21:39:45,521 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:45,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:45,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:45,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:45,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2021-07-14 21:39:45,538 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:45,844 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-07-14 21:39:45,844 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:45,859 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:45,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:45,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:45,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:45,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-07-14 21:39:45,864 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:46,157 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-07-14 21:39:46,157 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:46,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:46,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:46,170 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:46,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:46,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 25 [2021-07-14 21:39:46,173 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:46,445 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-07-14 21:39:46,445 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:46,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:46,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:46,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:46,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2021-07-14 21:39:46,461 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:46,718 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2021-07-14 21:39:46,719 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:46,728 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:39:46,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:46,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:46,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:46,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-07-14 21:39:46,732 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:46,973 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-07-14 21:39:46,973 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:46,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:46,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:46,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:46,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 19 [2021-07-14 21:39:46,987 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:47,215 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2021-07-14 21:39:47,216 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:47,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:47,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:47,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:39:47,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-07-14 21:39:47,229 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-07-14 21:39:47,451 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-07-14 21:39:47,452 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:39:47,464 INFO L550 ElimStorePlain]: Start of recursive call 1: 40 dim-0 vars, 20 dim-1 vars, End of recursive call: and 14 xjuncts. [2021-07-14 21:39:47,464 INFO L247 ElimStorePlain]: Needed 23 recursive calls to eliminate 60 variables, input treesize:1229, output treesize:147 [2021-07-14 21:39:47,605 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:39:47,605 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670184391] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:39:47,605 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:39:47,605 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15] total 30 [2021-07-14 21:39:47,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197969832] [2021-07-14 21:39:47,606 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-07-14 21:39:47,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:39:47,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-07-14 21:39:47,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=735, Unknown=0, NotChecked=0, Total=870 [2021-07-14 21:39:47,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:39:47,606 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:39:47,607 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.2) internal successors, (66), 30 states have internal predecessors, (66), 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) [2021-07-14 21:39:47,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:39:47,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:39:47,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:39:47,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:39:47,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:39:47,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:39:47,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:39:47,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:39:47,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:39:47,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:39:48,264 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 57 [2021-07-14 21:39:48,514 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 44 [2021-07-14 21:39:48,773 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 58 [2021-07-14 21:39:49,166 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 74 [2021-07-14 21:39:49,494 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 83 [2021-07-14 21:39:49,982 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 89 [2021-07-14 21:39:51,821 WARN L205 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 204 DAG size of output: 163 [2021-07-14 21:39:55,701 WARN L205 SmtUtils]: Spent 3.75 s on a formula simplification. DAG size of input: 569 DAG size of output: 266 [2021-07-14 21:39:57,152 WARN L205 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 163 DAG size of output: 125 [2021-07-14 21:40:00,187 WARN L205 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 296 DAG size of output: 261 [2021-07-14 21:40:02,198 WARN L205 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 238 DAG size of output: 167 [2021-07-14 21:40:12,994 WARN L205 SmtUtils]: Spent 10.54 s on a formula simplification. DAG size of input: 728 DAG size of output: 528 [2021-07-14 21:40:18,071 WARN L205 SmtUtils]: Spent 4.93 s on a formula simplification. DAG size of input: 325 DAG size of output: 262 [2021-07-14 21:40:18,288 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-07-14 21:40:18,508 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-07-14 21:40:19,043 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 108 [2021-07-14 21:40:19,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:40:19,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:40:19,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:40:19,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:40:19,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:40:19,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:40:19,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:40:19,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:40:19,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:40:19,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:40:19,293 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:40:19,293 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:40:19,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:40:19,294 INFO L82 PathProgramCache]: Analyzing trace with hash 415734870, now seen corresponding path program 6 times [2021-07-14 21:40:19,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:40:19,294 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835498230] [2021-07-14 21:40:19,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:40:19,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:40:19,389 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 9 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:40:19,389 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:40:19,389 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835498230] [2021-07-14 21:40:19,389 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835498230] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:40:19,389 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [377336128] [2021-07-14 21:40:19,389 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 [2021-07-14 21:40:19,421 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-07-14 21:40:19,421 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:40:19,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-14 21:40:19,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:40:19,610 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:40:19,610 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [377336128] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:40:19,610 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:40:19,610 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 22 [2021-07-14 21:40:19,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820824828] [2021-07-14 21:40:19,611 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-07-14 21:40:19,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:40:19,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-07-14 21:40:19,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2021-07-14 21:40:19,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:40:19,611 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:40:19,611 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.4545454545454546) internal successors, (54), 22 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:40:19,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:40:19,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:40:19,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:40:19,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:40:19,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:40:19,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:40:19,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:40:19,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:40:19,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:40:19,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:40:19,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:40:20,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:40:20,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:40:20,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:40:20,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:40:20,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:40:20,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:40:20,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:40:20,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:40:20,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:40:20,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:40:20,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:40:20,216 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:40:20,217 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:40:20,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:40:20,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1341800248, now seen corresponding path program 7 times [2021-07-14 21:40:20,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:40:20,217 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980747198] [2021-07-14 21:40:20,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:40:20,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:40:20,827 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 38 [2021-07-14 21:40:21,217 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 74 [2021-07-14 21:40:21,356 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 184 [2021-07-14 21:40:22,083 WARN L205 SmtUtils]: Spent 693.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 138 [2021-07-14 21:40:22,214 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 183 [2021-07-14 21:40:22,948 WARN L205 SmtUtils]: Spent 697.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 137 [2021-07-14 21:40:23,523 WARN L205 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 110 [2021-07-14 21:40:24,094 WARN L205 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 105 [2021-07-14 21:40:24,452 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 75 [2021-07-14 21:40:24,679 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2021-07-14 21:40:24,847 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:40:24,847 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:40:24,848 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980747198] [2021-07-14 21:40:24,848 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980747198] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:40:24,848 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701220163] [2021-07-14 21:40:24,848 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:40:24,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:40:24,886 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 50 conjunts are in the unsatisfiable core [2021-07-14 21:40:24,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:40:25,427 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-07-14 21:40:26,015 WARN L205 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-07-14 21:40:27,416 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 223 [2021-07-14 21:40:28,820 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 361 [2021-07-14 21:40:33,171 WARN L205 SmtUtils]: Spent 3.63 s on a formula simplification that was a NOOP. DAG size: 434 [2021-07-14 21:40:39,803 WARN L205 SmtUtils]: Spent 5.15 s on a formula simplification. DAG size of input: 886 DAG size of output: 365 [2021-07-14 21:40:46,418 WARN L205 SmtUtils]: Spent 5.30 s on a formula simplification. DAG size of input: 402 DAG size of output: 378 [2021-07-14 21:40:52,796 WARN L205 SmtUtils]: Spent 5.07 s on a formula simplification. DAG size of input: 499 DAG size of output: 472 [2021-07-14 21:40:59,473 WARN L205 SmtUtils]: Spent 5.17 s on a formula simplification. DAG size of input: 535 DAG size of output: 502 [2021-07-14 21:41:00,530 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_380, v_prenex_381, v_prenex_360, v_prenex_398, v_prenex_399, v_prenex_367, v_prenex_358, v_prenex_359], 9=[v_prenex_382, v_prenex_361, v_prenex_383, v_prenex_362, v_prenex_384, v_prenex_363, v_prenex_385, v_prenex_364, v_prenex_386, v_prenex_365, v_prenex_387, v_prenex_388, v_prenex_366, v_prenex_389, v_prenex_400, v_prenex_368, v_prenex_390, v_prenex_371, v_prenex_393, v_prenex_372, v_prenex_394, v_prenex_395, v_prenex_373, v_prenex_374, v_prenex_396, v_prenex_375, v_prenex_397, v_prenex_376, v_prenex_355, v_prenex_377, v_prenex_356, v_prenex_378, v_prenex_379, v_prenex_357, A]} [2021-07-14 21:41:00,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2021-07-14 21:41:00,580 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:04,276 WARN L205 SmtUtils]: Spent 3.70 s on a formula simplification. DAG size of input: 865 DAG size of output: 749 [2021-07-14 21:41:04,278 INFO L628 ElimStorePlain]: treesize reduction 493, result has 80.7 percent of original size [2021-07-14 21:41:04,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 19 [2021-07-14 21:41:04,316 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:06,935 WARN L205 SmtUtils]: Spent 2.62 s on a formula simplification. DAG size of input: 739 DAG size of output: 601 [2021-07-14 21:41:06,937 INFO L628 ElimStorePlain]: treesize reduction 406, result has 80.0 percent of original size [2021-07-14 21:41:06,937 INFO L518 ElimStorePlain]: Eliminatee v_prenex_360 vanished before elimination [2021-07-14 21:41:06,937 INFO L518 ElimStorePlain]: Eliminatee v_prenex_398 vanished before elimination [2021-07-14 21:41:06,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-07-14 21:41:06,971 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:08,185 WARN L205 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 592 [2021-07-14 21:41:08,186 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:08,186 INFO L518 ElimStorePlain]: Eliminatee v_prenex_367 vanished before elimination [2021-07-14 21:41:08,186 INFO L518 ElimStorePlain]: Eliminatee v_prenex_358 vanished before elimination [2021-07-14 21:41:08,186 INFO L518 ElimStorePlain]: Eliminatee v_prenex_359 vanished before elimination [2021-07-14 21:41:08,186 INFO L518 ElimStorePlain]: Eliminatee v_prenex_382 vanished before elimination [2021-07-14 21:41:08,216 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:08,269 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:41:08,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 41 [2021-07-14 21:41:08,271 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:09,449 WARN L205 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 587 [2021-07-14 21:41:09,450 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:09,474 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:09,519 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:09,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 57 [2021-07-14 21:41:09,525 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:10,594 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 581 [2021-07-14 21:41:10,594 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:10,619 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:10,673 INFO L354 Elim1Store]: treesize reduction 12, result has 63.6 percent of original size [2021-07-14 21:41:10,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 43 treesize of output 45 [2021-07-14 21:41:10,676 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:11,726 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 577 [2021-07-14 21:41:11,726 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:11,751 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:11,803 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:41:11,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 45 treesize of output 41 [2021-07-14 21:41:11,805 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:12,848 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 570 [2021-07-14 21:41:12,848 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:12,884 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:12,949 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:41:12,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 41 [2021-07-14 21:41:12,951 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:13,948 WARN L205 SmtUtils]: Spent 996.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2021-07-14 21:41:13,949 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:13,976 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:14,030 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:41:14,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 47 treesize of output 41 [2021-07-14 21:41:14,032 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:15,025 WARN L205 SmtUtils]: Spent 992.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2021-07-14 21:41:15,025 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:15,048 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:15,090 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:15,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 54 treesize of output 60 [2021-07-14 21:41:15,101 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:16,077 WARN L205 SmtUtils]: Spent 975.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2021-07-14 21:41:16,077 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:16,112 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:16,164 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:41:16,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 45 treesize of output 41 [2021-07-14 21:41:16,167 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:17,158 WARN L205 SmtUtils]: Spent 991.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2021-07-14 21:41:17,159 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:17,182 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:17,223 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:17,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 54 treesize of output 60 [2021-07-14 21:41:17,234 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:18,298 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 553 [2021-07-14 21:41:18,299 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:18,323 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:18,374 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:41:18,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 41 [2021-07-14 21:41:18,376 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:19,433 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 548 [2021-07-14 21:41:19,433 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:19,459 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:19,514 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:41:19,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 41 [2021-07-14 21:41:19,519 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:20,504 WARN L205 SmtUtils]: Spent 984.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2021-07-14 21:41:20,505 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:20,506 INFO L518 ElimStorePlain]: Eliminatee v_prenex_366 vanished before elimination [2021-07-14 21:41:20,528 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:20,568 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:20,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 54 treesize of output 60 [2021-07-14 21:41:20,579 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:22,594 WARN L205 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 542 DAG size of output: 541 [2021-07-14 21:41:22,595 INFO L628 ElimStorePlain]: treesize reduction 11, result has 99.2 percent of original size [2021-07-14 21:41:22,619 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:22,664 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:22,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 57 [2021-07-14 21:41:22,686 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:23,705 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 537 [2021-07-14 21:41:23,705 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:23,726 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:23,786 INFO L354 Elim1Store]: treesize reduction 4, result has 87.9 percent of original size [2021-07-14 21:41:23,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 52 treesize of output 56 [2021-07-14 21:41:23,792 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:24,797 WARN L205 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 537 [2021-07-14 21:41:24,797 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:24,816 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:24,864 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:41:24,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 41 [2021-07-14 21:41:24,865 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:25,857 WARN L205 SmtUtils]: Spent 991.00 ms on a formula simplification that was a NOOP. DAG size: 530 [2021-07-14 21:41:25,858 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:25,881 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:25,930 INFO L354 Elim1Store]: treesize reduction 8, result has 75.8 percent of original size [2021-07-14 21:41:25,930 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 50 treesize of output 52 [2021-07-14 21:41:25,934 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:26,894 WARN L205 SmtUtils]: Spent 959.00 ms on a formula simplification that was a NOOP. DAG size: 525 [2021-07-14 21:41:26,895 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:26,918 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:26,924 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:26,977 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:41:26,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 43 treesize of output 41 [2021-07-14 21:41:26,979 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:27,002 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:27,040 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:41:27,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 36 treesize of output 38 [2021-07-14 21:41:27,042 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:27,975 WARN L205 SmtUtils]: Spent 931.00 ms on a formula simplification that was a NOOP. DAG size: 516 [2021-07-14 21:41:27,975 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:27,994 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:28,035 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:41:28,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 47 treesize of output 41 [2021-07-14 21:41:28,042 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:28,962 WARN L205 SmtUtils]: Spent 920.00 ms on a formula simplification that was a NOOP. DAG size: 509 [2021-07-14 21:41:28,963 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:28,988 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:29,027 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:41:29,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 41 [2021-07-14 21:41:29,029 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:29,934 WARN L205 SmtUtils]: Spent 904.00 ms on a formula simplification that was a NOOP. DAG size: 502 [2021-07-14 21:41:29,935 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:29,935 INFO L518 ElimStorePlain]: Eliminatee v_prenex_395 vanished before elimination [2021-07-14 21:41:29,953 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:29,995 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:41:29,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 41 [2021-07-14 21:41:29,997 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:30,874 WARN L205 SmtUtils]: Spent 877.00 ms on a formula simplification that was a NOOP. DAG size: 495 [2021-07-14 21:41:30,875 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:30,875 INFO L518 ElimStorePlain]: Eliminatee v_prenex_374 vanished before elimination [2021-07-14 21:41:30,875 INFO L518 ElimStorePlain]: Eliminatee v_prenex_396 vanished before elimination [2021-07-14 21:41:30,875 INFO L518 ElimStorePlain]: Eliminatee v_prenex_375 vanished before elimination [2021-07-14 21:41:30,895 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:30,932 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:30,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 57 [2021-07-14 21:41:30,938 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:31,793 WARN L205 SmtUtils]: Spent 854.00 ms on a formula simplification that was a NOOP. DAG size: 483 [2021-07-14 21:41:31,793 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:31,810 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:31,851 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:41:31,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 47 treesize of output 41 [2021-07-14 21:41:31,853 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:32,674 WARN L205 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 476 [2021-07-14 21:41:32,674 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:32,691 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:32,725 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:32,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 57 [2021-07-14 21:41:32,733 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:33,559 WARN L205 SmtUtils]: Spent 826.00 ms on a formula simplification that was a NOOP. DAG size: 470 [2021-07-14 21:41:33,560 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:33,560 INFO L518 ElimStorePlain]: Eliminatee v_prenex_377 vanished before elimination [2021-07-14 21:41:33,578 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:33,630 INFO L354 Elim1Store]: treesize reduction 4, result has 87.9 percent of original size [2021-07-14 21:41:33,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 52 treesize of output 56 [2021-07-14 21:41:33,636 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:34,439 WARN L205 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2021-07-14 21:41:34,440 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:34,440 INFO L518 ElimStorePlain]: Eliminatee v_prenex_378 vanished before elimination [2021-07-14 21:41:34,455 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:34,488 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:34,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 54 treesize of output 60 [2021-07-14 21:41:34,504 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:35,327 WARN L205 SmtUtils]: Spent 822.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2021-07-14 21:41:35,328 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:35,343 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:35,380 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:41:35,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 47 treesize of output 41 [2021-07-14 21:41:35,382 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:36,196 WARN L205 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 457 [2021-07-14 21:41:36,196 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:36,211 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:36,247 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:41:36,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 41 [2021-07-14 21:41:36,249 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:37,041 WARN L205 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 450 [2021-07-14 21:41:37,041 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:37,166 INFO L550 ElimStorePlain]: Start of recursive call 1: 70 dim-0 vars, 43 dim-1 vars, End of recursive call: and 16 xjuncts. [2021-07-14 21:41:37,166 INFO L247 ElimStorePlain]: Needed 32 recursive calls to eliminate 113 variables, input treesize:2579, output treesize:253 [2021-07-14 21:41:37,383 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:41:37,383 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [701220163] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:41:37,383 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:41:37,383 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 33 [2021-07-14 21:41:37,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517599628] [2021-07-14 21:41:37,384 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-07-14 21:41:37,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:41:37,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-07-14 21:41:37,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=945, Unknown=0, NotChecked=0, Total=1056 [2021-07-14 21:41:37,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:41:37,384 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:41:37,384 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 2.1818181818181817) internal successors, (72), 33 states have internal predecessors, (72), 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) [2021-07-14 21:41:37,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:41:37,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:41:37,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:41:37,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:41:37,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:41:37,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:41:37,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:41:37,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:41:37,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:41:37,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:41:37,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:41:37,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:41:38,379 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 47 [2021-07-14 21:41:38,748 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 53 [2021-07-14 21:41:39,092 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 46 [2021-07-14 21:41:39,545 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 63 [2021-07-14 21:41:39,910 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 56 [2021-07-14 21:41:40,389 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 65 [2021-07-14 21:41:41,478 WARN L205 SmtUtils]: Spent 860.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 137 [2021-07-14 21:41:43,221 WARN L205 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 221 DAG size of output: 162 [2021-07-14 21:41:44,832 WARN L205 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 228 DAG size of output: 150 [2021-07-14 21:41:47,336 WARN L205 SmtUtils]: Spent 2.22 s on a formula simplification. DAG size of input: 347 DAG size of output: 231 [2021-07-14 21:41:50,195 WARN L205 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 483 DAG size of output: 368 [2021-07-14 21:41:55,854 WARN L205 SmtUtils]: Spent 5.43 s on a formula simplification. DAG size of input: 390 DAG size of output: 259 [2021-07-14 21:41:59,657 WARN L205 SmtUtils]: Spent 3.55 s on a formula simplification. DAG size of input: 379 DAG size of output: 243 [2021-07-14 21:42:07,669 WARN L205 SmtUtils]: Spent 7.69 s on a formula simplification. DAG size of input: 532 DAG size of output: 442 [2021-07-14 21:42:11,967 WARN L205 SmtUtils]: Spent 3.96 s on a formula simplification. DAG size of input: 515 DAG size of output: 377 [2021-07-14 21:42:20,031 WARN L205 SmtUtils]: Spent 7.58 s on a formula simplification. DAG size of input: 801 DAG size of output: 357 [2021-07-14 21:42:32,022 WARN L205 SmtUtils]: Spent 11.67 s on a formula simplification. DAG size of input: 588 DAG size of output: 450 [2021-07-14 21:42:32,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:42:32,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:42:32,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:42:32,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:42:32,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:42:32,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:42:32,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:42:32,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:42:32,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:42:32,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:42:32,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:42:32,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:42:32,624 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:42:32,625 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:42:32,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:42:32,625 INFO L82 PathProgramCache]: Analyzing trace with hash -331166506, now seen corresponding path program 8 times [2021-07-14 21:42:32,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:42:32,625 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740024477] [2021-07-14 21:42:32,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:42:32,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:42:32,718 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 16 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:42:32,719 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:42:32,719 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740024477] [2021-07-14 21:42:32,719 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740024477] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:42:32,719 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492320826] [2021-07-14 21:42:32,719 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:42:32,750 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 21:42:32,750 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:42:32,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 15 conjunts are in the unsatisfiable core [2021-07-14 21:42:32,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:42:32,916 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 25 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:42:32,917 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492320826] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:42:32,917 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:42:32,917 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 25 [2021-07-14 21:42:32,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889735992] [2021-07-14 21:42:32,917 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-14 21:42:32,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:42:32,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-14 21:42:32,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=482, Unknown=0, NotChecked=0, Total=600 [2021-07-14 21:42:32,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:42:32,918 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:42:32,918 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.4) internal successors, (60), 25 states have internal predecessors, (60), 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) [2021-07-14 21:42:32,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:42:32,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:42:32,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:42:32,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:42:32,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:42:32,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:42:32,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:42:32,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:42:32,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:42:32,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:42:32,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:42:32,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:42:32,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:42:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:42:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:42:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:42:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:42:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:42:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:42:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:42:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:42:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:42:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:42:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:42:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 21:42:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 21:42:33,560 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186,12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:42:33,561 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:42:33,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:42:33,561 INFO L82 PathProgramCache]: Analyzing trace with hash 829116344, now seen corresponding path program 9 times [2021-07-14 21:42:33,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:42:33,561 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158202589] [2021-07-14 21:42:33,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:42:33,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:42:34,892 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 63 [2021-07-14 21:42:35,560 WARN L205 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 89 [2021-07-14 21:42:35,686 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 290 DAG size of output: 225 [2021-07-14 21:42:36,612 WARN L205 SmtUtils]: Spent 870.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 117 [2021-07-14 21:42:36,740 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 325 DAG size of output: 260 [2021-07-14 21:42:38,685 WARN L205 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 260 DAG size of output: 173 [2021-07-14 21:42:38,795 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 323 DAG size of output: 258 [2021-07-14 21:42:40,205 WARN L205 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 258 DAG size of output: 171 [2021-07-14 21:42:41,520 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 243 DAG size of output: 170 [2021-07-14 21:42:42,829 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 239 DAG size of output: 166 [2021-07-14 21:42:43,314 WARN L205 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 108 [2021-07-14 21:42:43,710 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 77 [2021-07-14 21:42:43,948 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 55 [2021-07-14 21:42:44,115 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 9 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:42:44,115 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:42:44,115 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158202589] [2021-07-14 21:42:44,115 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158202589] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:42:44,115 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529543294] [2021-07-14 21:42:44,115 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:42:44,160 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-07-14 21:42:44,160 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:42:44,161 WARN L261 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 63 conjunts are in the unsatisfiable core [2021-07-14 21:42:44,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:42:44,973 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-07-14 21:42:45,203 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-07-14 21:42:45,705 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 216 [2021-07-14 21:42:45,860 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 279 [2021-07-14 21:42:45,998 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 279 [2021-07-14 21:43:51,856 WARN L205 SmtUtils]: Spent 1.09 m on a formula simplification that was a NOOP. DAG size: 279 [2021-07-14 21:43:52,081 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 281 [2021-07-14 21:43:52,717 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 408 DAG size of output: 408 [2021-07-14 21:43:52,875 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 274 [2021-07-14 21:43:53,014 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 274 [2021-07-14 21:43:53,154 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 1690 DAG size of output: 1690 [2021-07-14 21:43:53,345 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 1945 DAG size of output: 1945 [2021-07-14 21:43:53,470 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 1945 DAG size of output: 1945 [2021-07-14 21:44:16,868 WARN L205 SmtUtils]: Spent 21.91 s on a formula simplification. DAG size of input: 1945 DAG size of output: 1229 [2021-07-14 21:44:19,314 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 1153 DAG size of output: 1153 [2021-07-14 21:44:19,538 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 1312 DAG size of output: 1312 [2021-07-14 21:44:19,718 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 1312 DAG size of output: 1312 [2021-07-14 21:44:43,322 WARN L205 SmtUtils]: Spent 22.67 s on a formula simplification. DAG size of input: 1312 DAG size of output: 1240 [2021-07-14 21:44:45,846 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 1270 DAG size of output: 1270 [2021-07-14 21:44:46,121 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 1445 DAG size of output: 1445 [2021-07-14 21:44:46,336 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 1445 DAG size of output: 1445 [2021-07-14 21:44:46,484 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 1445 [2021-07-14 21:45:12,344 WARN L205 SmtUtils]: Spent 24.95 s on a formula simplification. DAG size of input: 1445 DAG size of output: 1345 [2021-07-14 21:45:14,218 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 1355 DAG size of output: 1355 [2021-07-14 21:45:15,174 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 1321 DAG size of output: 1321 [2021-07-14 21:45:15,466 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 1502 DAG size of output: 1502 [2021-07-14 21:45:15,714 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 1502 DAG size of output: 1502 [2021-07-14 21:45:15,877 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 1502 [2021-07-14 21:45:29,635 WARN L227 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2021-07-14 21:45:29,636 WARN L348 FreeRefinementEngine]: Global settings require throwing the following exception [2021-07-14 21:45:29,837 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:45:29,838 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.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:626) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:120) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:184) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:173) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:140) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:360) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:305) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:582) 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:597) 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:367) 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$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:238) ... 53 more [2021-07-14 21:45:29,842 INFO L168 Benchmark]: Toolchain (without parser) took 392673.00 ms. Allocated memory was 206.6 MB in the beginning and 358.6 MB in the end (delta: 152.0 MB). Free memory was 187.1 MB in the beginning and 292.8 MB in the end (delta: -105.7 MB). Peak memory consumption was 230.8 MB. Max. memory is 8.0 GB. [2021-07-14 21:45:29,842 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.09 ms. Allocated memory is still 206.6 MB. Free memory is still 188.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-14 21:45:29,842 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.84 ms. Allocated memory is still 206.6 MB. Free memory was 187.0 MB in the beginning and 185.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-14 21:45:29,842 INFO L168 Benchmark]: Boogie Preprocessor took 19.34 ms. Allocated memory is still 206.6 MB. Free memory was 185.6 MB in the beginning and 184.6 MB in the end (delta: 991.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-14 21:45:29,842 INFO L168 Benchmark]: RCFGBuilder took 274.71 ms. Allocated memory is still 206.6 MB. Free memory was 184.5 MB in the beginning and 170.9 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-07-14 21:45:29,842 INFO L168 Benchmark]: TraceAbstraction took 392328.64 ms. Allocated memory was 206.6 MB in the beginning and 358.6 MB in the end (delta: 152.0 MB). Free memory was 170.4 MB in the beginning and 292.8 MB in the end (delta: -122.4 MB). Peak memory consumption was 214.0 MB. Max. memory is 8.0 GB. [2021-07-14 21:45:29,842 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.09 ms. Allocated memory is still 206.6 MB. Free memory is still 188.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 42.84 ms. Allocated memory is still 206.6 MB. Free memory was 187.0 MB in the beginning and 185.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Preprocessor took 19.34 ms. Allocated memory is still 206.6 MB. Free memory was 185.6 MB in the beginning and 184.6 MB in the end (delta: 991.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 274.71 ms. Allocated memory is still 206.6 MB. Free memory was 184.5 MB in the beginning and 170.9 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 392328.64 ms. Allocated memory was 206.6 MB in the beginning and 358.6 MB in the end (delta: 152.0 MB). Free memory was 170.4 MB in the beginning and 292.8 MB in the end (delta: -122.4 MB). Peak memory consumption was 214.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...