/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-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/prod-cons3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-14 21:25:25,367 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-14 21:25:25,369 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-14 21:25:25,406 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-14 21:25:25,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-14 21:25:25,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-14 21:25:25,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-14 21:25:25,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-14 21:25:25,434 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-14 21:25:25,434 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-14 21:25:25,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-14 21:25:25,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-14 21:25:25,444 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-14 21:25:25,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-14 21:25:25,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-14 21:25:25,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-14 21:25:25,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-14 21:25:25,457 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-14 21:25:25,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-14 21:25:25,461 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-14 21:25:25,461 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-14 21:25:25,462 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-14 21:25:25,462 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-14 21:25:25,463 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-14 21:25:25,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-14 21:25:25,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-14 21:25:25,472 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-14 21:25:25,473 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-14 21:25:25,477 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-Lockstep.epf [2021-06-14 21:25:25,509 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-14 21:25:25,510 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-14 21:25:25,510 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-14 21:25:25,510 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-14 21:25:25,512 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-14 21:25:25,513 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-14 21:25:25,513 INFO L138 SettingsManager]: * Use SBE=true [2021-06-14 21:25:25,513 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-14 21:25:25,513 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-14 21:25:25,513 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-14 21:25:25,514 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-14 21:25:25,514 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-14 21:25:25,514 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-14 21:25:25,515 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-14 21:25:25,515 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-14 21:25:25,515 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-14 21:25:25,515 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-14 21:25:25,515 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-14 21:25:25,515 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-14 21:25:25,516 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-14 21:25:25,516 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-14 21:25:25,516 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-14 21:25:25,516 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-14 21:25:25,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-14 21:25:25,516 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-14 21:25:25,517 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-14 21:25:25,517 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-14 21:25:25,517 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-14 21:25:25,517 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-06-14 21:25:25,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-14 21:25:25,517 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-14 21:25:25,518 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-14 21:25:25,518 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-14 21:25:25,518 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-06-14 21:25:25,518 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-14 21:25:25,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-14 21:25:25,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-14 21:25:25,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-14 21:25:25,849 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-14 21:25:25,850 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-14 21:25:25,851 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/prod-cons3.wvr.bpl [2021-06-14 21:25:25,851 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/prod-cons3.wvr.bpl' [2021-06-14 21:25:25,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-14 21:25:25,874 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-14 21:25:25,875 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-14 21:25:25,875 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-14 21:25:25,875 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-14 21:25:25,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "prod-cons3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 09:25:25" (1/1) ... [2021-06-14 21:25:25,892 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "prod-cons3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 09:25:25" (1/1) ... [2021-06-14 21:25:25,898 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-14 21:25:25,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-14 21:25:25,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-14 21:25:25,900 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-14 21:25:25,906 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "prod-cons3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 09:25:25" (1/1) ... [2021-06-14 21:25:25,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "prod-cons3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 09:25:25" (1/1) ... [2021-06-14 21:25:25,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "prod-cons3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 09:25:25" (1/1) ... [2021-06-14 21:25:25,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "prod-cons3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 09:25:25" (1/1) ... [2021-06-14 21:25:25,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "prod-cons3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 09:25:25" (1/1) ... [2021-06-14 21:25:25,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "prod-cons3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 09:25:25" (1/1) ... [2021-06-14 21:25:25,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "prod-cons3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 09:25:25" (1/1) ... [2021-06-14 21:25:25,925 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-14 21:25:25,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-14 21:25:25,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-14 21:25:25,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-14 21:25:25,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "prod-cons3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 09:25:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-14 21:25:25,993 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-14 21:25:25,993 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-14 21:25:25,993 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-14 21:25:25,993 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-14 21:25:25,993 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-14 21:25:25,994 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-14 21:25:25,994 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-14 21:25:25,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-14 21:25:25,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-14 21:25:25,995 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-14 21:25:25,996 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-14 21:25:25,996 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-14 21:25:25,996 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-06-14 21:25:25,996 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-06-14 21:25:25,997 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-06-14 21:25:25,998 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-14 21:25:26,186 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-14 21:25:26,186 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-14 21:25:26,188 INFO L202 PluginConnector]: Adding new model prod-cons3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 09:25:26 BoogieIcfgContainer [2021-06-14 21:25:26,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-14 21:25:26,190 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-14 21:25:26,190 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-14 21:25:26,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-14 21:25:26,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "prod-cons3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 09:25:25" (1/2) ... [2021-06-14 21:25:26,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10021166 and model type prod-cons3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 09:25:26, skipping insertion in model container [2021-06-14 21:25:26,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "prod-cons3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 09:25:26" (2/2) ... [2021-06-14 21:25:26,195 INFO L111 eAbstractionObserver]: Analyzing ICFG prod-cons3.wvr.bpl [2021-06-14 21:25:26,199 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-14 21:25:26,199 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-14 21:25:26,200 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-14 21:25:26,200 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-14 21:25:26,252 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-14 21:25:26,279 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-14 21:25:26,351 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-14 21:25:26,352 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-14 21:25:26,352 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-14 21:25:26,352 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-14 21:25:26,352 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-14 21:25:26,352 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-14 21:25:26,352 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-14 21:25:26,353 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-14 21:25:26,631 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 21:25:26,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 21:25:26,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1625471773, now seen corresponding path program 1 times [2021-06-14 21:25:26,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 21:25:26,646 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665303424] [2021-06-14 21:25:26,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 21:25:26,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 21:25:26,819 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-14 21:25:26,820 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 21:25:26,821 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665303424] [2021-06-14 21:25:26,821 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665303424] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-14 21:25:26,821 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-14 21:25:26,821 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-14 21:25:26,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869336485] [2021-06-14 21:25:26,825 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-14 21:25:26,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 21:25:26,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-14 21:25:26,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-14 21:25:26,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:25:26,840 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 21:25:26,842 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 21:25:26,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:25:27,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 21:25:27,053 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-14 21:25:27,053 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 21:25:27,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 21:25:27,057 INFO L82 PathProgramCache]: Analyzing trace with hash -273342143, now seen corresponding path program 2 times [2021-06-14 21:25:27,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 21:25:27,058 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715357681] [2021-06-14 21:25:27,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 21:25:27,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 21:25:27,136 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-14 21:25:27,137 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 21:25:27,137 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715357681] [2021-06-14 21:25:27,137 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715357681] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:25:27,137 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656405445] [2021-06-14 21:25:27,137 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 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 21:25:27,196 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-14 21:25:27,197 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 21:25:27,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-14 21:25:27,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 21:25:27,390 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-06-14 21:25:27,390 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656405445] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-14 21:25:27,390 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-14 21:25:27,390 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2021-06-14 21:25:27,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561033449] [2021-06-14 21:25:27,392 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-14 21:25:27,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 21:25:27,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-14 21:25:27,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-14 21:25:27,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:25:27,393 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 21:25:27,393 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 21:25:27,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 21:25:27,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:25:27,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 21:25:27,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:25:27,688 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 21:25:27,689 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 21:25:27,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 21:25:27,689 INFO L82 PathProgramCache]: Analyzing trace with hash -279746524, now seen corresponding path program 3 times [2021-06-14 21:25:27,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 21:25:27,690 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009381353] [2021-06-14 21:25:27,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 21:25:27,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 21:25:28,374 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 21:25:28,375 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 21:25:28,375 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009381353] [2021-06-14 21:25:28,375 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009381353] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:25:28,375 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590647704] [2021-06-14 21:25:28,375 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 21:25:28,442 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-14 21:25:28,442 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 21:25:28,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 32 conjunts are in the unsatisfiable core [2021-06-14 21:25:28,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 21:25:29,086 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-06-14 21:25:29,086 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 31 treesize of output 19 [2021-06-14 21:25:29,089 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:25:29,096 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:25:29,097 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 21:25:29,097 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:44, output treesize:24 [2021-06-14 21:25:29,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:25:29,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:25:29,196 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-14 21:25:29,197 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 27 treesize of output 13 [2021-06-14 21:25:29,199 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:25:29,208 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:25:29,210 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 21:25:29,211 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:38, output treesize:10 [2021-06-14 21:25:29,331 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 21:25:29,331 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590647704] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:25:29,331 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 21:25:29,331 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 20] total 38 [2021-06-14 21:25:29,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649166398] [2021-06-14 21:25:29,333 INFO L462 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-06-14 21:25:29,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 21:25:29,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-06-14 21:25:29,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=1249, Unknown=0, NotChecked=0, Total=1406 [2021-06-14 21:25:29,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:25:29,339 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 21:25:29,339 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 38 states, 38 states have (on average 2.1052631578947367) internal successors, (80), 38 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 21:25:29,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 21:25:29,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:25:29,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:25:31,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 21:25:31,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:25:31,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-14 21:25:31,647 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 21:25:31,648 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 21:25:31,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 21:25:31,649 INFO L82 PathProgramCache]: Analyzing trace with hash 430173383, now seen corresponding path program 4 times [2021-06-14 21:25:31,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 21:25:31,649 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006035646] [2021-06-14 21:25:31,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 21:25:31,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 21:25:33,074 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 16 proven. 241 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-14 21:25:33,074 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 21:25:33,074 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006035646] [2021-06-14 21:25:33,075 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006035646] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:25:33,075 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561117294] [2021-06-14 21:25:33,075 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 21:25:33,162 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-14 21:25:33,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 21:25:33,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 83 conjunts are in the unsatisfiable core [2021-06-14 21:25:33,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 21:25:35,582 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-06-14 21:25:35,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 95 treesize of output 55 [2021-06-14 21:25:35,586 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:25:35,598 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:25:35,599 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 21:25:35,599 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:126, output treesize:63 [2021-06-14 21:25:36,064 INFO L354 Elim1Store]: treesize reduction 112, result has 0.9 percent of original size [2021-06-14 21:25:36,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 62 treesize of output 26 [2021-06-14 21:25:36,066 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:25:36,070 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:25:36,070 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 21:25:36,070 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:67, output treesize:12 [2021-06-14 21:25:36,283 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 10 proven. 249 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 21:25:36,283 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [561117294] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:25:36,283 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 21:25:36,283 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42] total 80 [2021-06-14 21:25:36,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953677196] [2021-06-14 21:25:36,284 INFO L462 AbstractCegarLoop]: Interpolant automaton has 80 states [2021-06-14 21:25:36,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 21:25:36,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2021-06-14 21:25:36,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=421, Invalid=5899, Unknown=0, NotChecked=0, Total=6320 [2021-06-14 21:25:36,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:25:36,287 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 21:25:36,287 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 80 states, 80 states have (on average 2.15) internal successors, (172), 80 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 21:25:36,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 21:25:36,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:25:36,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-14 21:25:36,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:25:47,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 21:25:47,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:25:47,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-14 21:25:47,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2021-06-14 21:25:47,929 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 21:25:47,930 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 21:25:47,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 21:25:47,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1894766662, now seen corresponding path program 5 times [2021-06-14 21:25:47,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 21:25:47,931 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711831932] [2021-06-14 21:25:47,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 21:25:48,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 21:25:49,721 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 27 proven. 517 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-06-14 21:25:49,722 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 21:25:49,722 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711831932] [2021-06-14 21:25:49,722 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711831932] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:25:49,722 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163078163] [2021-06-14 21:25:49,722 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 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 21:25:49,799 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2021-06-14 21:25:49,799 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 21:25:49,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 124 conjunts are in the unsatisfiable core [2021-06-14 21:25:49,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 21:25:55,283 INFO L354 Elim1Store]: treesize reduction 322, result has 0.3 percent of original size [2021-06-14 21:25:55,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 151 treesize of output 91 [2021-06-14 21:25:55,287 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:25:55,303 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:25:55,304 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 21:25:55,304 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:197, output treesize:99 [2021-06-14 21:25:55,820 INFO L354 Elim1Store]: treesize reduction 322, result has 0.3 percent of original size [2021-06-14 21:25:55,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 98 treesize of output 38 [2021-06-14 21:25:55,824 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:25:55,829 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:25:55,829 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 21:25:55,829 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:103, output treesize:12 [2021-06-14 21:25:56,109 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 3 proven. 551 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 21:25:56,109 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163078163] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:25:56,109 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 21:25:56,109 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 60] total 110 [2021-06-14 21:25:56,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826256712] [2021-06-14 21:25:56,110 INFO L462 AbstractCegarLoop]: Interpolant automaton has 110 states [2021-06-14 21:25:56,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 21:25:56,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2021-06-14 21:25:56,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=598, Invalid=11392, Unknown=0, NotChecked=0, Total=11990 [2021-06-14 21:25:56,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:25:56,114 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 21:25:56,114 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 110 states, 110 states have (on average 2.1636363636363636) internal successors, (238), 110 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 21:25:56,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 21:25:56,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:25:56,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-14 21:25:56,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. [2021-06-14 21:25:56,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:26:14,724 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2021-06-14 21:26:18,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 21:26:18,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:26:18,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-14 21:26:18,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2021-06-14 21:26:18,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2021-06-14 21:26:19,112 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 21:26:19,112 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 21:26:19,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 21:26:19,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1961443940, now seen corresponding path program 6 times [2021-06-14 21:26:19,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 21:26:19,113 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139012720] [2021-06-14 21:26:19,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 21:26:19,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 21:26:20,735 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 36 proven. 506 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-06-14 21:26:20,735 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 21:26:20,736 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139012720] [2021-06-14 21:26:20,736 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139012720] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:26:20,736 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44251338] [2021-06-14 21:26:20,736 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 21:26:20,809 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 16 check-sat command(s) [2021-06-14 21:26:20,809 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 21:26:20,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 134 conjunts are in the unsatisfiable core [2021-06-14 21:26:20,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 21:26:29,059 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-06-14 21:26:29,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 153 treesize of output 89 [2021-06-14 21:26:29,062 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:26:29,097 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:26:29,102 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-06-14 21:26:29,103 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:210, output treesize:108 [2021-06-14 21:26:29,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,617 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-14 21:26:29,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,628 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-14 21:26:29,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,644 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-14 21:26:29,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,647 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-14 21:26:29,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,651 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-14 21:26:29,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 21:26:29,653 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-14 21:26:29,659 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:26:29,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 15 select indices, 15 select index equivalence classes, 35 disjoint index pairs (out of 105 index pairs), introduced 9 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 48 [2021-06-14 21:26:29,667 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:26:29,683 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:26:29,687 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 21:26:29,687 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:124, output treesize:24 [2021-06-14 21:26:30,572 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 1 proven. 553 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 21:26:30,573 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44251338] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:26:30,573 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 21:26:30,573 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 63] total 113 [2021-06-14 21:26:30,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117507842] [2021-06-14 21:26:30,574 INFO L462 AbstractCegarLoop]: Interpolant automaton has 113 states [2021-06-14 21:26:30,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 21:26:30,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2021-06-14 21:26:30,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=584, Invalid=12072, Unknown=0, NotChecked=0, Total=12656 [2021-06-14 21:26:30,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:26:30,577 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 21:26:30,578 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 113 states, 113 states have (on average 2.1150442477876106) internal successors, (239), 113 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 21:26:30,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 21:26:30,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:26:30,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-14 21:26:30,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. [2021-06-14 21:26:30,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 174 states. [2021-06-14 21:26:30,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:26:42,823 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 89 [2021-06-14 21:26:43,689 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 94 [2021-06-14 21:26:45,157 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 93 [2021-06-14 21:26:47,582 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 91 [2021-06-14 21:26:49,550 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 92 [2021-06-14 21:26:50,232 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 100 [2021-06-14 21:26:52,979 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 102 [2021-06-14 21:26:53,320 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 108 [2021-06-14 21:26:55,469 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 111 [2021-06-14 21:26:56,142 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 108 [2021-06-14 21:26:56,939 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2021-06-14 21:26:59,731 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 103 [2021-06-14 21:27:00,249 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 103 [2021-06-14 21:27:03,309 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 99 [2021-06-14 21:27:05,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 21:27:05,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:27:05,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-14 21:27:05,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2021-06-14 21:27:05,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 176 states. [2021-06-14 21:27:05,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 195 states. [2021-06-14 21:27:05,849 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 21:27:05,849 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 21:27:05,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 21:27:05,849 INFO L82 PathProgramCache]: Analyzing trace with hash -355493721, now seen corresponding path program 7 times [2021-06-14 21:27:05,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 21:27:05,850 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237386865] [2021-06-14 21:27:05,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 21:27:05,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 21:27:08,115 INFO L134 CoverageAnalysis]: Checked inductivity of 960 backedges. 34 proven. 910 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-06-14 21:27:08,115 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 21:27:08,115 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237386865] [2021-06-14 21:27:08,115 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237386865] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:27:08,115 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167543206] [2021-06-14 21:27:08,115 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 21:27:08,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 21:27:08,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 169 conjunts are in the unsatisfiable core [2021-06-14 21:27:08,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 21:27:19,616 INFO L354 Elim1Store]: treesize reduction 660, result has 0.2 percent of original size [2021-06-14 21:27:19,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 215 treesize of output 127 [2021-06-14 21:27:19,619 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:27:19,643 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:27:19,644 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 21:27:19,644 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:276, output treesize:135 [2021-06-14 21:27:20,688 INFO L354 Elim1Store]: treesize reduction 640, result has 0.2 percent of original size [2021-06-14 21:27:20,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 134 treesize of output 50 [2021-06-14 21:27:20,712 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:27:20,716 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:27:20,717 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 21:27:20,717 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:139, output treesize:12 [2021-06-14 21:27:21,113 INFO L134 CoverageAnalysis]: Checked inductivity of 960 backedges. 16 proven. 944 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 21:27:21,114 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167543206] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:27:21,114 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 21:27:21,114 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 80] total 143 [2021-06-14 21:27:21,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380343605] [2021-06-14 21:27:21,114 INFO L462 AbstractCegarLoop]: Interpolant automaton has 143 states [2021-06-14 21:27:21,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 21:27:21,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 143 interpolants. [2021-06-14 21:27:21,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=719, Invalid=19587, Unknown=0, NotChecked=0, Total=20306 [2021-06-14 21:27:21,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:27:21,118 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 21:27:21,119 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 143 states, 143 states have (on average 2.020979020979021) internal successors, (289), 143 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 21:27:21,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 21:27:21,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:27:21,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-14 21:27:21,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. [2021-06-14 21:27:21,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 176 states. [2021-06-14 21:27:21,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 195 states. [2021-06-14 21:27:21,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:27:39,007 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 87 [2021-06-14 21:27:45,201 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2021-06-14 21:27:45,615 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2021-06-14 21:27:45,924 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2021-06-14 21:27:46,194 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2021-06-14 21:27:47,410 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 98 [2021-06-14 21:27:48,552 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 93 [2021-06-14 21:27:48,865 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 95 [2021-06-14 21:27:49,174 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 100 [2021-06-14 21:27:49,444 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 97 [2021-06-14 21:27:49,696 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 100 [2021-06-14 21:27:50,016 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 97 [2021-06-14 21:27:50,680 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 100 [2021-06-14 21:27:51,173 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 99 [2021-06-14 21:27:52,100 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 101 [2021-06-14 21:27:52,987 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 104 [2021-06-14 21:27:53,479 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 97 [2021-06-14 21:27:53,891 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 99 [2021-06-14 21:27:54,456 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 101 [2021-06-14 21:27:54,811 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 100 [2021-06-14 21:27:55,257 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 100 [2021-06-14 21:27:55,521 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 101 [2021-06-14 21:27:56,292 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 103 [2021-06-14 21:27:56,557 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 104 [2021-06-14 21:27:56,909 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 104 [2021-06-14 21:27:57,231 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 103 [2021-06-14 21:27:57,817 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2021-06-14 21:27:58,445 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 110 [2021-06-14 21:28:03,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 21:28:03,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:28:03,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-14 21:28:03,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2021-06-14 21:28:03,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 176 states. [2021-06-14 21:28:03,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 195 states. [2021-06-14 21:28:03,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 209 states. [2021-06-14 21:28:04,168 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 21:28:04,168 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 21:28:04,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 21:28:04,169 INFO L82 PathProgramCache]: Analyzing trace with hash 83262973, now seen corresponding path program 8 times [2021-06-14 21:28:04,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 21:28:04,169 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613507135] [2021-06-14 21:28:04,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 21:28:04,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 21:28:06,400 INFO L134 CoverageAnalysis]: Checked inductivity of 960 backedges. 47 proven. 897 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-06-14 21:28:06,400 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 21:28:06,400 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613507135] [2021-06-14 21:28:06,400 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613507135] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:28:06,400 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383832092] [2021-06-14 21:28:06,400 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 21:28:06,471 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-14 21:28:06,471 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 21:28:06,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 167 conjunts are in the unsatisfiable core [2021-06-14 21:28:06,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 21:28:17,764 INFO L354 Elim1Store]: treesize reduction 660, result has 0.2 percent of original size [2021-06-14 21:28:17,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 215 treesize of output 127 [2021-06-14 21:28:17,767 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:28:17,794 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:28:17,795 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 21:28:17,795 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:276, output treesize:135 [2021-06-14 21:28:18,218 INFO L354 Elim1Store]: treesize reduction 640, result has 0.2 percent of original size [2021-06-14 21:28:18,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 134 treesize of output 50 [2021-06-14 21:28:18,220 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:28:18,223 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:28:18,224 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 21:28:18,224 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:139, output treesize:12 [2021-06-14 21:28:18,857 INFO L134 CoverageAnalysis]: Checked inductivity of 960 backedges. 3 proven. 957 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 21:28:18,857 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383832092] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:28:18,857 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 21:28:18,857 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 79] total 142 [2021-06-14 21:28:18,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591257471] [2021-06-14 21:28:18,857 INFO L462 AbstractCegarLoop]: Interpolant automaton has 142 states [2021-06-14 21:28:18,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 21:28:18,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 142 interpolants. [2021-06-14 21:28:18,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=727, Invalid=19295, Unknown=0, NotChecked=0, Total=20022 [2021-06-14 21:28:18,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:28:18,863 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 21:28:18,863 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 142 states, 142 states have (on average 2.119718309859155) internal successors, (301), 142 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 21:28:18,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 21:28:18,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:28:18,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-14 21:28:18,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. [2021-06-14 21:28:18,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 176 states. [2021-06-14 21:28:18,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 195 states. [2021-06-14 21:28:18,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 209 states. [2021-06-14 21:28:18,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:28:41,813 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 89 [2021-06-14 21:28:42,378 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 92 [2021-06-14 21:28:43,601 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 98 [2021-06-14 21:28:44,710 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 95 [2021-06-14 21:28:44,999 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 97 [2021-06-14 21:28:45,314 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 100 [2021-06-14 21:28:45,577 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 95 [2021-06-14 21:28:45,861 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 102 [2021-06-14 21:28:46,187 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 95 [2021-06-14 21:28:46,924 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 101 [2021-06-14 21:28:48,004 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 104 [2021-06-14 21:28:48,936 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 99 [2021-06-14 21:28:49,815 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 102 [2021-06-14 21:28:50,324 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 99 [2021-06-14 21:28:50,697 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 101 [2021-06-14 21:28:51,255 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 103 [2021-06-14 21:28:51,596 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 102 [2021-06-14 21:28:52,033 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 102 [2021-06-14 21:28:52,301 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 103 [2021-06-14 21:28:53,093 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 101 [2021-06-14 21:28:53,360 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 102 [2021-06-14 21:28:53,684 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 104 [2021-06-14 21:28:54,004 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 103 [2021-06-14 21:28:54,597 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 108 [2021-06-14 21:28:55,003 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 111 [2021-06-14 21:28:55,823 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 106 [2021-06-14 21:28:56,661 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 110 [2021-06-14 21:28:57,028 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 113 [2021-06-14 21:28:57,432 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 112 [2021-06-14 21:28:57,871 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 109 [2021-06-14 21:28:59,030 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 104 [2021-06-14 21:29:03,915 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 99 [2021-06-14 21:29:04,173 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 104 [2021-06-14 21:29:04,711 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 104 [2021-06-14 21:29:06,465 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 100 [2021-06-14 21:29:08,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 21:29:08,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:29:08,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-14 21:29:08,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2021-06-14 21:29:08,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 176 states. [2021-06-14 21:29:08,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 195 states. [2021-06-14 21:29:08,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 211 states. [2021-06-14 21:29:08,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 237 states. [2021-06-14 21:29:08,571 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-06-14 21:29:08,572 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 21:29:08,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 21:29:08,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1693526118, now seen corresponding path program 9 times [2021-06-14 21:29:08,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 21:29:08,573 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681353285] [2021-06-14 21:29:08,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 21:29:08,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 21:29:11,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1477 backedges. 55 proven. 1398 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-06-14 21:29:11,516 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 21:29:11,516 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681353285] [2021-06-14 21:29:11,516 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681353285] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:29:11,516 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411671009] [2021-06-14 21:29:11,516 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 21:29:11,633 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 25 check-sat command(s) [2021-06-14 21:29:11,634 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 21:29:11,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 208 conjunts are in the unsatisfiable core [2021-06-14 21:29:11,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 21:29:30,769 INFO L354 Elim1Store]: treesize reduction 1066, result has 0.1 percent of original size [2021-06-14 21:29:30,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 271 treesize of output 163 [2021-06-14 21:29:30,773 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:29:30,804 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:29:30,805 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 21:29:30,805 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:347, output treesize:171 [2021-06-14 21:29:32,247 INFO L354 Elim1Store]: treesize reduction 1066, result has 0.1 percent of original size [2021-06-14 21:29:32,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 170 treesize of output 62 [2021-06-14 21:29:32,250 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:29:32,254 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:29:32,254 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 21:29:32,254 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:175, output treesize:12 [2021-06-14 21:29:32,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1477 backedges. 3 proven. 1474 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 21:29:32,740 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411671009] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:29:32,740 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 21:29:32,741 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [78, 99] total 173 [2021-06-14 21:29:32,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120247257] [2021-06-14 21:29:32,741 INFO L462 AbstractCegarLoop]: Interpolant automaton has 173 states [2021-06-14 21:29:32,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 21:29:32,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 173 interpolants. [2021-06-14 21:29:32,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=926, Invalid=28830, Unknown=0, NotChecked=0, Total=29756 [2021-06-14 21:29:32,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:29:32,744 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 21:29:32,744 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 173 states, 173 states have (on average 2.0578034682080926) internal successors, (356), 173 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 21:29:32,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 21:29:32,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:29:32,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-14 21:29:32,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. [2021-06-14 21:29:32,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 176 states. [2021-06-14 21:29:32,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 195 states. [2021-06-14 21:29:32,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 211 states. [2021-06-14 21:29:32,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 237 states. [2021-06-14 21:29:32,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:29:49,863 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-06-14 21:29:50,806 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81 [2021-06-14 21:29:54,012 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 90 [2021-06-14 21:29:54,415 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 90 [2021-06-14 21:29:54,999 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 91 [2021-06-14 21:29:56,235 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 96 [2021-06-14 21:29:57,603 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 96 [2021-06-14 21:29:57,915 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 97 [2021-06-14 21:29:58,206 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 98 [2021-06-14 21:29:58,493 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 104 [2021-06-14 21:29:58,857 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 98 [2021-06-14 21:29:59,950 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 104 [2021-06-14 21:30:01,222 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 102 [2021-06-14 21:30:01,800 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 106 [2021-06-14 21:30:02,295 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 108 [2021-06-14 21:30:03,089 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 116 [2021-06-14 21:30:03,649 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 115 [2021-06-14 21:30:05,412 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 116 [2021-06-14 21:30:05,714 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 117 [2021-06-14 21:30:06,230 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 115 [2021-06-14 21:30:06,624 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 114 [2021-06-14 21:30:06,990 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 120 [2021-06-14 21:30:11,044 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 115 [2021-06-14 21:30:11,475 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 127 [2021-06-14 21:30:11,830 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2021-06-14 21:30:12,147 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 115 [2021-06-14 21:30:12,524 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2021-06-14 21:30:13,207 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 117 [2021-06-14 21:30:13,829 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 124 [2021-06-14 21:30:14,268 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 116 [2021-06-14 21:30:14,650 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 124 [2021-06-14 21:30:14,960 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 119 [2021-06-14 21:30:15,353 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 129 [2021-06-14 21:30:15,728 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 119 [2021-06-14 21:30:16,055 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 124 [2021-06-14 21:30:16,457 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 119 [2021-06-14 21:30:17,212 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 124 [2021-06-14 21:30:17,771 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 124 [2021-06-14 21:30:18,524 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 124 [2021-06-14 21:30:19,106 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 115 [2021-06-14 21:30:19,609 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 117 [2021-06-14 21:30:20,041 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 119 [2021-06-14 21:30:20,643 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 124 [2021-06-14 21:30:21,280 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 123 [2021-06-14 21:30:21,608 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 123 [2021-06-14 21:30:22,014 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 123 [2021-06-14 21:30:22,525 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 122 [2021-06-14 21:30:23,391 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 126 [2021-06-14 21:30:23,769 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 125 [2021-06-14 21:30:24,249 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 122 [2021-06-14 21:30:24,891 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 124 [2021-06-14 21:30:25,202 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 123 [2021-06-14 21:30:25,637 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 125 [2021-06-14 21:30:26,066 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 126 [2021-06-14 21:30:26,567 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 129 [2021-06-14 21:30:27,177 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 129 [2021-06-14 21:30:27,980 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 122 [2021-06-14 21:30:29,006 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 127 [2021-06-14 21:30:29,879 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 126 [2021-06-14 21:30:30,219 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 127 [2021-06-14 21:30:31,165 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 129 [2021-06-14 21:30:31,511 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 130 [2021-06-14 21:30:31,932 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 128 [2021-06-14 21:30:32,329 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 127 [2021-06-14 21:30:33,016 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 136 [2021-06-14 21:30:33,768 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 136 [2021-06-14 21:30:35,586 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-06-14 21:30:35,879 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 77 [2021-06-14 21:30:40,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 21:30:40,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:30:40,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-14 21:30:40,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2021-06-14 21:30:40,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 176 states. [2021-06-14 21:30:40,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 195 states. [2021-06-14 21:30:40,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 211 states. [2021-06-14 21:30:40,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 237 states. [2021-06-14 21:30:40,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 274 states. [2021-06-14 21:30:40,268 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-06-14 21:30:40,268 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 21:30:40,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 21:30:40,269 INFO L82 PathProgramCache]: Analyzing trace with hash 2132282812, now seen corresponding path program 10 times [2021-06-14 21:30:40,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 21:30:40,269 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435209670] [2021-06-14 21:30:40,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 21:30:40,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 21:30:43,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1477 backedges. 71 proven. 1382 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-06-14 21:30:43,344 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 21:30:43,344 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435209670] [2021-06-14 21:30:43,344 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435209670] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:30:43,344 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570172494] [2021-06-14 21:30:43,344 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 21:30:43,421 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-14 21:30:43,421 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 21:30:43,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 212 conjunts are in the unsatisfiable core [2021-06-14 21:30:43,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 21:31:02,806 INFO L354 Elim1Store]: treesize reduction 1092, result has 0.1 percent of original size [2021-06-14 21:31:02,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 275 treesize of output 163 [2021-06-14 21:31:02,810 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:31:02,857 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:31:02,858 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 21:31:02,858 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:351, output treesize:171 [2021-06-14 21:31:03,439 INFO L354 Elim1Store]: treesize reduction 1092, result has 0.1 percent of original size [2021-06-14 21:31:03,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 174 treesize of output 62 [2021-06-14 21:31:03,441 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:31:03,445 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:31:03,445 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 21:31:03,445 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:179, output treesize:12 [2021-06-14 21:31:04,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1477 backedges. 34 proven. 1443 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 21:31:04,300 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570172494] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:31:04,300 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 21:31:04,300 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [78, 98] total 172 [2021-06-14 21:31:04,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843612138] [2021-06-14 21:31:04,301 INFO L462 AbstractCegarLoop]: Interpolant automaton has 172 states [2021-06-14 21:31:04,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 21:31:04,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 172 interpolants. [2021-06-14 21:31:04,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=934, Invalid=28478, Unknown=0, NotChecked=0, Total=29412 [2021-06-14 21:31:04,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:31:04,303 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 21:31:04,303 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 172 states, 172 states have (on average 2.0232558139534884) internal successors, (348), 172 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 21:31:04,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 21:31:04,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:31:04,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-14 21:31:04,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. [2021-06-14 21:31:04,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 176 states. [2021-06-14 21:31:04,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 195 states. [2021-06-14 21:31:04,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 211 states. [2021-06-14 21:31:04,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 237 states. [2021-06-14 21:31:04,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 274 states. [2021-06-14 21:31:04,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:31:26,865 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2021-06-14 21:31:27,272 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 94 [2021-06-14 21:31:27,609 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 93 [2021-06-14 21:31:27,887 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 93 [2021-06-14 21:31:29,218 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 98 [2021-06-14 21:31:30,645 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 97 [2021-06-14 21:31:30,943 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 99 [2021-06-14 21:31:31,245 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 99 [2021-06-14 21:31:31,520 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 102 [2021-06-14 21:31:31,883 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 99 [2021-06-14 21:31:33,076 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 102 [2021-06-14 21:31:34,290 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 103 [2021-06-14 21:31:34,837 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 105 [2021-06-14 21:31:35,290 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 107 [2021-06-14 21:31:35,951 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2021-06-14 21:31:36,486 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 109 [2021-06-14 21:31:38,133 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 117 [2021-06-14 21:31:38,438 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 118 [2021-06-14 21:31:38,981 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 120 [2021-06-14 21:31:39,399 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 119 [2021-06-14 21:31:39,795 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 122 [2021-06-14 21:31:42,562 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 117 [2021-06-14 21:31:42,972 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 127 [2021-06-14 21:31:43,334 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 116 [2021-06-14 21:31:43,681 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 117 [2021-06-14 21:31:44,051 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 116 [2021-06-14 21:31:44,693 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 119 [2021-06-14 21:31:45,248 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 126 [2021-06-14 21:31:45,685 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 118 [2021-06-14 21:31:46,046 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 126 [2021-06-14 21:31:46,359 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 121 [2021-06-14 21:31:46,761 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 129 [2021-06-14 21:31:47,112 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 119 [2021-06-14 21:31:47,454 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 126 [2021-06-14 21:31:47,883 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 119 [2021-06-14 21:31:48,864 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 126 [2021-06-14 21:31:50,062 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 128 [2021-06-14 21:31:50,992 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 124 [2021-06-14 21:31:51,649 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 117 [2021-06-14 21:31:52,227 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 119 [2021-06-14 21:31:52,566 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 117 [2021-06-14 21:31:52,928 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 119 [2021-06-14 21:31:53,462 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 121 [2021-06-14 21:31:53,937 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 124 [2021-06-14 21:31:54,465 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 126 [2021-06-14 21:31:55,305 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 124 [2021-06-14 21:31:55,760 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 119 [2021-06-14 21:31:57,059 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 125 [2021-06-14 21:31:57,390 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 123 [2021-06-14 21:31:57,813 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 123 [2021-06-14 21:31:58,337 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 122 [2021-06-14 21:31:59,253 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 126 [2021-06-14 21:31:59,642 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 125 [2021-06-14 21:32:00,140 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 122 [2021-06-14 21:32:00,825 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 124 [2021-06-14 21:32:01,155 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 123 [2021-06-14 21:32:01,639 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 125 [2021-06-14 21:32:02,100 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 126 [2021-06-14 21:32:02,646 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 129 [2021-06-14 21:32:03,165 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 132 [2021-06-14 21:32:04,253 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 122 [2021-06-14 21:32:04,624 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 126 [2021-06-14 21:32:05,846 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 131 [2021-06-14 21:32:06,341 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 134 [2021-06-14 21:32:06,877 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-06-14 21:32:07,646 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 129 [2021-06-14 21:32:08,198 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 125 [2021-06-14 21:32:09,643 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 127 [2021-06-14 21:32:10,461 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 126 [2021-06-14 21:32:10,811 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 127 [2021-06-14 21:32:11,832 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 125 [2021-06-14 21:32:12,187 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 126 [2021-06-14 21:32:12,620 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 128 [2021-06-14 21:32:13,043 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 127 [2021-06-14 21:32:13,796 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 132 [2021-06-14 21:32:14,355 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 135 [2021-06-14 21:32:15,452 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 130 [2021-06-14 21:32:16,590 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 134 [2021-06-14 21:32:17,088 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 137 [2021-06-14 21:32:17,591 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 136 [2021-06-14 21:32:18,164 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 133 [2021-06-14 21:32:19,584 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 128 [2021-06-14 21:32:24,189 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-06-14 21:32:25,425 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 123 [2021-06-14 21:32:25,790 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 128 [2021-06-14 21:32:26,523 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 128 [2021-06-14 21:32:28,531 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 124 [2021-06-14 21:32:30,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 21:32:30,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:32:30,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-14 21:32:30,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2021-06-14 21:32:30,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 176 states. [2021-06-14 21:32:30,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 195 states. [2021-06-14 21:32:30,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 211 states. [2021-06-14 21:32:30,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 237 states. [2021-06-14 21:32:30,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 276 states. [2021-06-14 21:32:30,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 314 states. [2021-06-14 21:32:30,903 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-06-14 21:32:30,904 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 21:32:30,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 21:32:30,904 INFO L82 PathProgramCache]: Analyzing trace with hash -869217145, now seen corresponding path program 11 times [2021-06-14 21:32:30,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 21:32:30,904 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530990196] [2021-06-14 21:32:30,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 21:32:30,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 21:32:35,089 INFO L134 CoverageAnalysis]: Checked inductivity of 2105 backedges. 69 proven. 2005 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-06-14 21:32:35,089 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 21:32:35,089 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530990196] [2021-06-14 21:32:35,089 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530990196] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:32:35,090 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786410607] [2021-06-14 21:32:35,090 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 21:32:35,204 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 30 check-sat command(s) [2021-06-14 21:32:35,204 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 21:32:35,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 256 conjunts are in the unsatisfiable core [2021-06-14 21:32:35,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 21:32:54,497 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-06-14 21:32:54,991 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-06-14 21:33:01,109 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-06-14 21:33:01,670 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-06-14 21:33:02,727 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2021-06-14 21:33:04,997 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2021-06-14 21:33:05,600 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-06-14 21:33:06,861 INFO L354 Elim1Store]: treesize reduction 1600, result has 0.1 percent of original size [2021-06-14 21:33:06,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 17 select indices, 17 select index equivalence classes, 0 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 136 case distinctions, treesize of input 331 treesize of output 199 [2021-06-14 21:33:06,864 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:33:06,906 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:33:06,920 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 21:33:06,920 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:422, output treesize:207 [2021-06-14 21:33:08,561 INFO L354 Elim1Store]: treesize reduction 1600, result has 0.1 percent of original size [2021-06-14 21:33:08,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 17 select indices, 17 select index equivalence classes, 0 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 136 case distinctions, treesize of input 206 treesize of output 74 [2021-06-14 21:33:08,565 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:33:08,569 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:33:08,569 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 21:33:08,570 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:211, output treesize:12 [2021-06-14 21:33:09,202 INFO L134 CoverageAnalysis]: Checked inductivity of 2105 backedges. 4 proven. 2101 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 21:33:09,203 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [786410607] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:33:09,203 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 21:33:09,203 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [92, 117] total 205 [2021-06-14 21:33:09,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285082413] [2021-06-14 21:33:09,204 INFO L462 AbstractCegarLoop]: Interpolant automaton has 205 states [2021-06-14 21:33:09,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 21:33:09,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 205 interpolants. [2021-06-14 21:33:09,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1115, Invalid=40705, Unknown=0, NotChecked=0, Total=41820 [2021-06-14 21:33:09,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:33:09,206 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 21:33:09,207 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 205 states, 205 states have (on average 2.0341463414634147) internal successors, (417), 205 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 21:33:09,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 21:33:09,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:33:09,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-14 21:33:09,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. [2021-06-14 21:33:09,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 176 states. [2021-06-14 21:33:09,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 195 states. [2021-06-14 21:33:09,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 211 states. [2021-06-14 21:33:09,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 237 states. [2021-06-14 21:33:09,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 276 states. [2021-06-14 21:33:09,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 314 states. [2021-06-14 21:33:09,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:33:33,617 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 81 [2021-06-14 21:33:39,142 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 92 [2021-06-14 21:33:39,535 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 91 [2021-06-14 21:33:39,873 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 96 [2021-06-14 21:33:41,434 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 107 [2021-06-14 21:33:43,114 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 106 [2021-06-14 21:33:43,444 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2021-06-14 21:33:43,796 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 106 [2021-06-14 21:33:44,117 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 117 [2021-06-14 21:33:44,533 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 106 [2021-06-14 21:33:46,050 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 115 [2021-06-14 21:33:47,548 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 118 [2021-06-14 21:33:48,211 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 108 [2021-06-14 21:33:48,719 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 110 [2021-06-14 21:33:49,496 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 119 [2021-06-14 21:33:50,127 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 118 [2021-06-14 21:33:52,152 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 115 [2021-06-14 21:33:52,533 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 116 [2021-06-14 21:33:53,096 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 118 [2021-06-14 21:33:53,563 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 117 [2021-06-14 21:33:53,970 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 119 [2021-06-14 21:33:55,717 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 124 [2021-06-14 21:33:57,915 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 126 [2021-06-14 21:33:58,370 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 124 [2021-06-14 21:33:58,804 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 128 [2021-06-14 21:33:59,179 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 131 [2021-06-14 21:33:59,738 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 128 [2021-06-14 21:34:01,212 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 134 [2021-06-14 21:34:01,896 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 133 [2021-06-14 21:34:02,966 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2021-06-14 21:34:03,381 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 133 [2021-06-14 21:34:03,879 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 132 [2021-06-14 21:34:04,473 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 132 [2021-06-14 21:34:04,805 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2021-06-14 21:34:05,360 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 134 [2021-06-14 21:34:05,739 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 133 [2021-06-14 21:34:06,389 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 135 [2021-06-14 21:34:06,997 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 137 [2021-06-14 21:34:13,794 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 138 [2021-06-14 21:34:14,622 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 135 [2021-06-14 21:34:15,151 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 134 [2021-06-14 21:34:15,611 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 134 [2021-06-14 21:34:16,133 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 135 [2021-06-14 21:34:16,731 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 137 [2021-06-14 21:34:17,582 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 136 [2021-06-14 21:34:18,189 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 143 [2021-06-14 21:34:18,651 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 144 [2021-06-14 21:34:19,131 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 144 [2021-06-14 21:34:19,666 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 144 [2021-06-14 21:34:20,119 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 139 [2021-06-14 21:34:20,621 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 143 [2021-06-14 21:34:21,143 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 151 [2021-06-14 21:34:21,753 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 147 [2021-06-14 21:34:22,234 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 144 [2021-06-14 21:34:23,178 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 144 [2021-06-14 21:34:23,949 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 144 [2021-06-14 21:34:25,035 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 146 [2021-06-14 21:34:25,782 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 135 [2021-06-14 21:34:26,501 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 137 [2021-06-14 21:34:27,085 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 139 [2021-06-14 21:34:27,908 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 144 [2021-06-14 21:34:28,758 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 146 [2021-06-14 21:34:29,525 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 146 [2021-06-14 21:34:30,092 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 156 [2021-06-14 21:34:30,654 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 145 [2021-06-14 21:34:31,124 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 146 [2021-06-14 21:34:31,697 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 145 [2021-06-14 21:34:32,633 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 149 [2021-06-14 21:34:33,083 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 142 [2021-06-14 21:34:33,570 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2021-06-14 21:34:34,183 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 148 [2021-06-14 21:34:34,643 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 144 [2021-06-14 21:34:35,011 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 151 [2021-06-14 21:34:35,515 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 149 [2021-06-14 21:34:36,047 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 151 [2021-06-14 21:34:36,543 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 154 [2021-06-14 21:34:37,123 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 151 [2021-06-14 21:34:38,330 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 154 [2021-06-14 21:34:39,189 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 154 [2021-06-14 21:34:40,134 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 156 [2021-06-14 21:34:41,011 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 145 [2021-06-14 21:34:41,810 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 147 [2021-06-14 21:34:42,834 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 154 [2021-06-14 21:34:43,767 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 155 [2021-06-14 21:34:44,290 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 155 [2021-06-14 21:34:45,008 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2021-06-14 21:34:45,779 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 152 [2021-06-14 21:34:46,611 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2021-06-14 21:34:47,129 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 156 [2021-06-14 21:34:47,671 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 155 [2021-06-14 21:34:48,365 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 144 [2021-06-14 21:34:48,697 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2021-06-14 21:34:49,269 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 146 [2021-06-14 21:34:49,710 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 145 [2021-06-14 21:34:50,338 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 147 [2021-06-14 21:34:50,979 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 148 [2021-06-14 21:34:51,677 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 151 [2021-06-14 21:34:52,633 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 151 [2021-06-14 21:34:53,858 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 151 [2021-06-14 21:34:54,419 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 148 [2021-06-14 21:34:55,048 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 153 [2021-06-14 21:34:55,752 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 155 [2021-06-14 21:34:56,689 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 149 [2021-06-14 21:34:57,336 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 156 [2021-06-14 21:34:58,289 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 156 [2021-06-14 21:35:00,049 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 148 [2021-06-14 21:35:00,522 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 149 [2021-06-14 21:35:01,923 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 149 [2021-06-14 21:35:02,394 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 150 [2021-06-14 21:35:03,017 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 152 [2021-06-14 21:35:03,641 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 151 [2021-06-14 21:35:04,188 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2021-06-14 21:35:04,697 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2021-06-14 21:35:05,726 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 156 [2021-06-14 21:35:14,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 21:35:14,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:35:14,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-14 21:35:14,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2021-06-14 21:35:14,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 176 states. [2021-06-14 21:35:14,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 195 states. [2021-06-14 21:35:14,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 211 states. [2021-06-14 21:35:14,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 237 states. [2021-06-14 21:35:14,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 276 states. [2021-06-14 21:35:14,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 314 states. [2021-06-14 21:35:14,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 350 states. [2021-06-14 21:35:14,337 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2021-06-14 21:35:14,337 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 21:35:14,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 21:35:14,338 INFO L82 PathProgramCache]: Analyzing trace with hash -430460451, now seen corresponding path program 12 times [2021-06-14 21:35:14,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 21:35:14,338 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099225978] [2021-06-14 21:35:14,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 21:35:14,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 21:35:18,546 INFO L134 CoverageAnalysis]: Checked inductivity of 2105 backedges. 88 proven. 1986 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-06-14 21:35:18,547 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 21:35:18,547 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099225978] [2021-06-14 21:35:18,547 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099225978] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:35:18,547 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249228919] [2021-06-14 21:35:18,547 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 21:35:18,705 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 30 check-sat command(s) [2021-06-14 21:35:18,705 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 21:35:18,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 257 conjunts are in the unsatisfiable core [2021-06-14 21:35:18,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 21:35:43,741 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-06-14 21:35:44,316 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2021-06-14 21:35:45,999 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2021-06-14 21:35:46,640 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2021-06-14 21:35:47,239 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2021-06-14 21:35:47,880 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2021-06-14 21:35:48,429 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2021-06-14 21:35:49,030 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-06-14 21:35:50,293 INFO L354 Elim1Store]: treesize reduction 1632, result has 0.1 percent of original size [2021-06-14 21:35:50,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 17 select indices, 17 select index equivalence classes, 0 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 136 case distinctions, treesize of input 335 treesize of output 199 [2021-06-14 21:35:50,297 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:35:50,340 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:35:50,342 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 21:35:50,342 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:426, output treesize:207 [2021-06-14 21:35:51,142 INFO L354 Elim1Store]: treesize reduction 1632, result has 0.1 percent of original size [2021-06-14 21:35:51,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 17 select indices, 17 select index equivalence classes, 0 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 136 case distinctions, treesize of input 210 treesize of output 74 [2021-06-14 21:35:51,146 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 21:35:51,150 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 21:35:51,150 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 21:35:51,150 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:215, output treesize:12 [2021-06-14 21:35:52,240 INFO L134 CoverageAnalysis]: Checked inductivity of 2105 backedges. 3 proven. 2102 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 21:35:52,240 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249228919] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 21:35:52,240 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 21:35:52,241 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [92, 117] total 205 [2021-06-14 21:35:52,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349239437] [2021-06-14 21:35:52,241 INFO L462 AbstractCegarLoop]: Interpolant automaton has 205 states [2021-06-14 21:35:52,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 21:35:52,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 205 interpolants. [2021-06-14 21:35:52,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1116, Invalid=40704, Unknown=0, NotChecked=0, Total=41820 [2021-06-14 21:35:52,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:35:52,244 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 21:35:52,244 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 205 states, 205 states have (on average 2.048780487804878) internal successors, (420), 205 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 21:35:52,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 21:35:52,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 21:35:52,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-14 21:35:52,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. [2021-06-14 21:35:52,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 176 states. [2021-06-14 21:35:52,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 195 states. [2021-06-14 21:35:52,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 211 states. [2021-06-14 21:35:52,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 237 states. [2021-06-14 21:35:52,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 276 states. [2021-06-14 21:35:52,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 314 states. [2021-06-14 21:35:52,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 350 states. [2021-06-14 21:35:52,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 21:36:17,811 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 90 [2021-06-14 21:36:18,455 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 94 [2021-06-14 21:36:19,878 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2021-06-14 21:36:21,421 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 97 [2021-06-14 21:36:21,719 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 97 [2021-06-14 21:36:22,028 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 99 [2021-06-14 21:36:22,306 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 102 [2021-06-14 21:36:22,670 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 99 [2021-06-14 21:36:23,657 WARN L227 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: ASSERTION VIOLATION File: ../src/math/lp/int_solver.cpp Line: 562 Failed to verify: get_freedom_interval_for_column(j, inf_l, l, inf_u, u, m) || settings().get_cancel_flag() Z3 4.8.11.0 Please file an issue with this message and more detail about how you encountered it at https://github.com/Z3Prover/z3/issues/new [2021-06-14 21:36:23,860 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-06-14 21:36:23,861 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: ASSERTION VIOLATION File: ../src/math/lp/int_solver.cpp Line: 562 Failed to verify: get_freedom_interval_for_column(j, inf_l, l, inf_u, u, m) || settings().get_cancel_flag() Z3 4.8.11.0 Please file an issue with this message and more detail about how you encountered it at https://github.com/Z3Prover/z3/issues/new at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkValidity(IncrementalHoareTripleChecker.java:676) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkInternal(IncrementalHoareTripleChecker.java:143) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ProtectiveHoareTripleChecker.checkInternal(ProtectiveHoareTripleChecker.java:61) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.EfficientHoareTripleChecker.checkInternal(EfficientHoareTripleChecker.java:63) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:357) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.addOtherSuccessors(DeterministicInterpolantAutomaton.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:200) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SleepSetNewStateReduction.search(SleepSetNewStateReduction.java:159) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SleepSetNewStateReduction.(SleepSetNewStateReduction.java:111) at de.uni_freiburg.informatik.ultimate.automata.partialorder.PersistentSetReduction.applyNewStateReduction(PersistentSetReduction.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderReductionFacade.apply(PartialOrderReductionFacade.java:159) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isAbstractionEmpty(PartialOrderCegarLoop.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:509) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:374) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:364) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:293) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:238) ... 44 more [2021-06-14 21:36:23,864 INFO L168 Benchmark]: Toolchain (without parser) took 657989.66 ms. Allocated memory was 173.0 MB in the beginning and 901.8 MB in the end (delta: 728.8 MB). Free memory was 153.1 MB in the beginning and 330.0 MB in the end (delta: -177.0 MB). Peak memory consumption was 553.2 MB. Max. memory is 8.0 GB. [2021-06-14 21:36:23,864 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 173.0 MB. Free memory is still 154.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-14 21:36:23,864 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.27 ms. Allocated memory is still 173.0 MB. Free memory was 153.0 MB in the beginning and 151.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-14 21:36:23,864 INFO L168 Benchmark]: Boogie Preprocessor took 25.83 ms. Allocated memory is still 173.0 MB. Free memory was 151.5 MB in the beginning and 150.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-14 21:36:23,864 INFO L168 Benchmark]: RCFGBuilder took 262.22 ms. Allocated memory is still 173.0 MB. Free memory was 150.4 MB in the beginning and 134.9 MB in the end (delta: 15.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-06-14 21:36:23,864 INFO L168 Benchmark]: TraceAbstraction took 657673.41 ms. Allocated memory was 173.0 MB in the beginning and 901.8 MB in the end (delta: 728.8 MB). Free memory was 134.5 MB in the beginning and 330.0 MB in the end (delta: -195.5 MB). Peak memory consumption was 534.3 MB. Max. memory is 8.0 GB. [2021-06-14 21:36:23,865 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 173.0 MB. Free memory is still 154.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 23.27 ms. Allocated memory is still 173.0 MB. Free memory was 153.0 MB in the beginning and 151.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 25.83 ms. Allocated memory is still 173.0 MB. Free memory was 151.5 MB in the beginning and 150.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 262.22 ms. Allocated memory is still 173.0 MB. Free memory was 150.4 MB in the beginning and 134.9 MB in the end (delta: 15.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 657673.41 ms. Allocated memory was 173.0 MB in the beginning and 901.8 MB in the end (delta: 728.8 MB). Free memory was 134.5 MB in the beginning and 330.0 MB in the end (delta: -195.5 MB). Peak memory consumption was 534.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: ASSERTION VIOLATION File: ../src/math/lp/int_solver.cpp Line: 562 Failed to verify: get_freedom_interval_for_column(j, inf_l, l, inf_u, u, m) || settings().get_cancel_flag() Z3 4.8.11.0 Please file an issue with this message and more detail about how you encountered it at https://github.com/Z3Prover/z3/issues/new de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: ASSERTION VIOLATION File: ../src/math/lp/int_solver.cpp Line: 562 Failed to verify: get_freedom_interval_for_column(j, inf_l, l, inf_u, u, m) || settings().get_cancel_flag() Z3 4.8.11.0 Please file an issue with this message and more detail about how you encountered it at https://github.com/Z3Prover/z3/issues/new : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...