/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleepPersistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/inc-subseq-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d47b94137d5c7dd60722882962a90fb345e61909-d47b941 [2021-05-03 22:58:14,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-03 22:58:14,583 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-03 22:58:14,621 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-03 22:58:14,621 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-03 22:58:14,622 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-03 22:58:14,623 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-03 22:58:14,624 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-03 22:58:14,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-03 22:58:14,633 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-03 22:58:14,633 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-03 22:58:14,635 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-03 22:58:14,635 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-03 22:58:14,636 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-03 22:58:14,637 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-03 22:58:14,639 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-03 22:58:14,640 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-03 22:58:14,641 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-03 22:58:14,644 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-03 22:58:14,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-03 22:58:14,649 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-03 22:58:14,650 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-03 22:58:14,651 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-03 22:58:14,652 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-03 22:58:14,656 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-03 22:58:14,667 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-DelaySleepPersistent-NoLbe.epf [2021-05-03 22:58:14,718 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-03 22:58:14,718 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-03 22:58:14,718 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-03 22:58:14,718 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-03 22:58:14,720 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-03 22:58:14,720 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-03 22:58:14,720 INFO L138 SettingsManager]: * Use SBE=true [2021-05-03 22:58:14,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-03 22:58:14,721 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-03 22:58:14,721 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-03 22:58:14,721 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-03 22:58:14,721 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-03 22:58:14,722 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-03 22:58:14,722 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-03 22:58:14,722 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-03 22:58:14,722 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-03 22:58:14,722 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-03 22:58:14,722 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-03 22:58:14,722 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-03 22:58:14,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-03 22:58:14,722 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-03 22:58:14,722 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-03 22:58:14,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-03 22:58:14,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-03 22:58:14,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-03 22:58:14,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-03 22:58:14,723 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-03 22:58:14,723 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-03 22:58:14,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-03 22:58:14,723 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-03 22:58:14,723 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-05-03 22:58:14,723 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-03 22:58:14,723 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_DELAY_SET [2021-05-03 22:58:14,724 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-03 22:58:14,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-03 22:58:14,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-03 22:58:14,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-03 22:58:14,972 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-05-03 22:58:14,973 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-05-03 22:58:14,974 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/inc-subseq-array.wvr.bpl [2021-05-03 22:58:14,974 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/inc-subseq-array.wvr.bpl' [2021-05-03 22:58:15,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-03 22:58:15,028 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-03 22:58:15,029 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-03 22:58:15,029 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-03 22:58:15,029 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-03 22:58:15,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 10:58:15" (1/1) ... [2021-05-03 22:58:15,046 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 10:58:15" (1/1) ... [2021-05-03 22:58:15,051 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-03 22:58:15,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-03 22:58:15,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-03 22:58:15,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-03 22:58:15,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 10:58:15" (1/1) ... [2021-05-03 22:58:15,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 10:58:15" (1/1) ... [2021-05-03 22:58:15,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 10:58:15" (1/1) ... [2021-05-03 22:58:15,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 10:58:15" (1/1) ... [2021-05-03 22:58:15,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 10:58:15" (1/1) ... [2021-05-03 22:58:15,065 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 10:58:15" (1/1) ... [2021-05-03 22:58:15,066 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 10:58:15" (1/1) ... [2021-05-03 22:58:15,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-03 22:58:15,067 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-03 22:58:15,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-03 22:58:15,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-03 22:58:15,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 10:58:15" (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 [2021-05-03 22:58:15,118 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-05-03 22:58:15,118 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-05-03 22:58:15,118 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-05-03 22:58:15,118 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-05-03 22:58:15,118 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-05-03 22:58:15,119 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-05-03 22:58:15,119 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-05-03 22:58:15,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-03 22:58:15,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-03 22:58:15,119 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-03 22:58:15,282 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-03 22:58:15,283 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-05-03 22:58:15,284 INFO L202 PluginConnector]: Adding new model inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 10:58:15 BoogieIcfgContainer [2021-05-03 22:58:15,284 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-03 22:58:15,285 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-03 22:58:15,285 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-03 22:58:15,287 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-03 22:58:15,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 10:58:15" (1/2) ... [2021-05-03 22:58:15,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b1de601 and model type inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 10:58:15, skipping insertion in model container [2021-05-03 22:58:15,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 10:58:15" (2/2) ... [2021-05-03 22:58:15,289 INFO L111 eAbstractionObserver]: Analyzing ICFG inc-subseq-array.wvr.bpl [2021-05-03 22:58:15,293 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-03 22:58:15,293 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-03 22:58:15,295 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-03 22:58:15,295 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-03 22:58:15,341 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-05-03 22:58:15,353 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-05-03 22:58:15,400 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-03 22:58:15,400 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-03 22:58:15,400 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-03 22:58:15,400 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-03 22:58:15,400 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-03 22:58:15,400 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-03 22:58:15,400 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-03 22:58:15,401 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-03 22:58:15,551 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 22:58:15,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 22:58:15,558 INFO L82 PathProgramCache]: Analyzing trace with hash 625365194, now seen corresponding path program 1 times [2021-05-03 22:58:15,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 22:58:15,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452661814] [2021-05-03 22:58:15,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 22:58:15,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 22:58:15,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 22:58:15,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452661814] [2021-05-03 22:58:15,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 22:58:15,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-03 22:58:15,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565805854] [2021-05-03 22:58:15,717 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-03 22:58:15,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 22:58:15,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-03 22:58:15,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-05-03 22:58:15,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 22:58:15,731 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 22:58:15,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 22:58:15,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 22:58:15,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 22:58:15,763 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-03 22:58:15,763 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 22:58:15,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 22:58:15,766 INFO L82 PathProgramCache]: Analyzing trace with hash -1695635148, now seen corresponding path program 1 times [2021-05-03 22:58:15,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 22:58:15,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672049984] [2021-05-03 22:58:15,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 22:58:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 22:58:15,919 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 22:58:15,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672049984] [2021-05-03 22:58:15,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133448597] [2021-05-03 22:58:15,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 22:58:15,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 22:58:15,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 11 conjunts are in the unsatisfiable core [2021-05-03 22:58:15,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 22:58:16,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-05-03 22:58:16,092 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 22:58:16,099 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 22:58:16,100 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 22:58:16,100 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:7 [2021-05-03 22:58:16,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-05-03 22:58:16,128 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 22:58:16,131 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 22:58:16,131 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 22:58:16,132 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2021-05-03 22:58:16,233 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 22:58:16,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 22:58:16,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 11 [2021-05-03 22:58:16,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52862225] [2021-05-03 22:58:16,235 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-05-03 22:58:16,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 22:58:16,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-05-03 22:58:16,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-05-03 22:58:16,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 22:58:16,236 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 22:58:16,236 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 11 states have internal predecessors, (31), 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) [2021-05-03 22:58:16,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 22:58:16,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 22:58:16,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 22:58:16,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 22:58:16,549 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 22:58:16,549 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 22:58:16,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 22:58:16,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1793580655, now seen corresponding path program 2 times [2021-05-03 22:58:16,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 22:58:16,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60898131] [2021-05-03 22:58:16,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 22:58:16,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 22:58:16,596 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 22:58:16,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60898131] [2021-05-03 22:58:16,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166139358] [2021-05-03 22:58:16,596 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 22:58:16,618 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 22:58:16,619 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 22:58:16,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2021-05-03 22:58:16,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 22:58:16,720 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 22:58:16,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 22:58:16,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3] total 6 [2021-05-03 22:58:16,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227722027] [2021-05-03 22:58:16,721 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-03 22:58:16,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 22:58:16,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-03 22:58:16,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-05-03 22:58:16,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 22:58:16,723 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 22:58:16,724 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 6 states have internal predecessors, (45), 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) [2021-05-03 22:58:16,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 22:58:16,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 22:58:16,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 22:58:16,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 22:58:16,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 22:58:16,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 22:58:17,008 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 22:58:17,009 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 22:58:17,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 22:58:17,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1639686247, now seen corresponding path program 3 times [2021-05-03 22:58:17,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 22:58:17,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034679996] [2021-05-03 22:58:17,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 22:58:17,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 22:58:17,247 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 22:58:17,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034679996] [2021-05-03 22:58:17,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384774537] [2021-05-03 22:58:17,250 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 22:58:17,280 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-05-03 22:58:17,280 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 22:58:17,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 22 conjunts are in the unsatisfiable core [2021-05-03 22:58:17,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 22:58:17,478 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 22:58:17,478 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 29 treesize of output 27 [2021-05-03 22:58:17,496 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 22:58:17,500 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 22:58:17,501 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 22:58:17,501 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:30, output treesize:16 [2021-05-03 22:58:17,687 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 22:58:17,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 38 [2021-05-03 22:58:17,721 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-05-03 22:58:17,731 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 22:58:17,745 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 22:58:17,745 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:21 [2021-05-03 22:58:17,827 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 22:58:17,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 22:58:17,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 27 [2021-05-03 22:58:17,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819135427] [2021-05-03 22:58:17,828 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-03 22:58:17,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 22:58:17,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-03 22:58:17,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=624, Unknown=0, NotChecked=0, Total=756 [2021-05-03 22:58:17,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 22:58:17,830 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 22:58:17,830 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.107142857142857) internal successors, (59), 27 states have internal predecessors, (59), 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) [2021-05-03 22:58:17,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 22:58:17,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 22:58:17,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 22:58:17,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 22:58:18,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 22:58:18,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 22:58:18,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 22:58:18,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-03 22:58:18,656 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 22:58:18,657 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 22:58:18,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 22:58:18,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1319090364, now seen corresponding path program 4 times [2021-05-03 22:58:18,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 22:58:18,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56461187] [2021-05-03 22:58:18,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 22:58:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 22:58:18,707 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 22:58:18,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56461187] [2021-05-03 22:58:18,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240498300] [2021-05-03 22:58:18,708 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 22:58:18,732 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 22:58:18,732 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 22:58:18,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjunts are in the unsatisfiable core [2021-05-03 22:58:18,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 22:58:18,785 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 22:58:18,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 22:58:18,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 8 [2021-05-03 22:58:18,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62315406] [2021-05-03 22:58:18,786 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-03 22:58:18,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 22:58:18,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-03 22:58:18,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-05-03 22:58:18,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 22:58:18,787 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 22:58:18,787 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 8 states have internal predecessors, (58), 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) [2021-05-03 22:58:18,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 22:58:18,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 22:58:18,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 22:58:18,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-05-03 22:58:18,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 22:58:18,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 22:58:18,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 22:58:18,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 22:58:18,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-03 22:58:18,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-03 22:58:19,032 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-05-03 22:58:19,033 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 22:58:19,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 22:58:19,033 INFO L82 PathProgramCache]: Analyzing trace with hash -953214674, now seen corresponding path program 5 times [2021-05-03 22:58:19,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 22:58:19,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981623558] [2021-05-03 22:58:19,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 22:58:19,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 22:58:19,520 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 22:58:19,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981623558] [2021-05-03 22:58:19,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439224873] [2021-05-03 22:58:19,521 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 22:58:19,567 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-05-03 22:58:19,567 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 22:58:19,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 34 conjunts are in the unsatisfiable core [2021-05-03 22:58:19,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 22:58:19,907 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 22:58:19,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 51 [2021-05-03 22:58:19,921 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 22:58:19,960 INFO L628 ElimStorePlain]: treesize reduction 39, result has 61.8 percent of original size [2021-05-03 22:58:19,969 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 22:58:19,970 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:54, output treesize:35 [2021-05-03 22:58:20,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:20,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:20,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:20,400 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 22:58:20,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:20,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:20,402 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 22:58:20,409 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 22:58:20,411 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 22:58:20,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2021-05-03 22:58:20,414 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 22:58:20,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:20,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:20,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:20,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:20,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:20,427 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 22:58:20,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:20,428 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 22:58:20,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 16 [2021-05-03 22:58:20,430 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 22:58:20,437 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 22:58:20,439 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 22:58:20,440 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:95, output treesize:5 [2021-05-03 22:58:20,449 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 22:58:20,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 22:58:20,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20] total 38 [2021-05-03 22:58:20,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427339977] [2021-05-03 22:58:20,450 INFO L460 AbstractCegarLoop]: Interpolant automaton has 39 states [2021-05-03 22:58:20,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 22:58:20,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-05-03 22:58:20,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=1303, Unknown=0, NotChecked=0, Total=1482 [2021-05-03 22:58:20,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 22:58:20,452 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 22:58:20,452 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 39 states, 39 states have (on average 1.8974358974358974) internal successors, (74), 38 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 22:58:20,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 22:58:20,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 22:58:20,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 22:58:20,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-05-03 22:58:20,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-05-03 22:58:20,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 22:58:21,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 22:58:21,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 22:58:21,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 22:58:21,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-03 22:58:21,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-03 22:58:21,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-03 22:58:21,556 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 22:58:21,557 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 22:58:21,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 22:58:21,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1648772639, now seen corresponding path program 6 times [2021-05-03 22:58:21,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 22:58:21,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983622239] [2021-05-03 22:58:21,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 22:58:21,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 22:58:22,113 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 22:58:22,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983622239] [2021-05-03 22:58:22,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424665738] [2021-05-03 22:58:22,114 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 22:58:22,152 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-05-03 22:58:22,152 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 22:58:22,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 48 conjunts are in the unsatisfiable core [2021-05-03 22:58:22,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 22:58:22,657 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 22:58:22,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 87 [2021-05-03 22:58:22,666 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 22:58:22,745 INFO L628 ElimStorePlain]: treesize reduction 51, result has 73.2 percent of original size [2021-05-03 22:58:22,753 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 22:58:22,753 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:72, output treesize:72 [2021-05-03 22:58:23,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:23,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:23,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:23,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:23,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:23,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:23,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:23,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:23,686 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 22:58:23,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 44 treesize of output 88 [2021-05-03 22:58:23,746 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2021-05-03 22:58:23,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:23,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:23,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:23,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:23,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:23,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:23,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:23,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:23,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:23,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:23,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:23,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:23,824 INFO L354 Elim1Store]: treesize reduction 52, result has 45.3 percent of original size [2021-05-03 22:58:23,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 55 treesize of output 61 [2021-05-03 22:58:23,838 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 22:58:23,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:23,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:23,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:23,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:23,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:23,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:23,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:23,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:23,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:23,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:23,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:23,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:23,893 INFO L354 Elim1Store]: treesize reduction 52, result has 45.3 percent of original size [2021-05-03 22:58:23,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 53 treesize of output 61 [2021-05-03 22:58:23,920 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 22:58:24,002 INFO L628 ElimStorePlain]: treesize reduction 88, result has 58.9 percent of original size [2021-05-03 22:58:24,034 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-05-03 22:58:24,035 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:208, output treesize:38 [2021-05-03 22:58:24,120 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 22:58:24,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 22:58:24,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 27] total 52 [2021-05-03 22:58:24,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129217200] [2021-05-03 22:58:24,121 INFO L460 AbstractCegarLoop]: Interpolant automaton has 53 states [2021-05-03 22:58:24,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 22:58:24,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-05-03 22:58:24,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=299, Invalid=2457, Unknown=0, NotChecked=0, Total=2756 [2021-05-03 22:58:24,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 22:58:24,122 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 22:58:24,122 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 53 states, 53 states have (on average 1.7735849056603774) internal successors, (94), 52 states have internal predecessors, (94), 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) [2021-05-03 22:58:24,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 22:58:24,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 22:58:24,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 22:58:24,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-05-03 22:58:24,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-05-03 22:58:24,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-05-03 22:58:24,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 22:58:25,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 22:58:25,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 22:58:25,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 22:58:25,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-03 22:58:25,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-03 22:58:25,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-03 22:58:25,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-03 22:58:26,134 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-05-03 22:58:26,135 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 22:58:26,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 22:58:26,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1153761496, now seen corresponding path program 7 times [2021-05-03 22:58:26,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 22:58:26,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338710596] [2021-05-03 22:58:26,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 22:58:26,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 22:58:27,095 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 22:58:27,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338710596] [2021-05-03 22:58:27,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639076580] [2021-05-03 22:58:27,095 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 22:58:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 22:58:27,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 59 conjunts are in the unsatisfiable core [2021-05-03 22:58:27,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 22:58:27,963 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 22:58:27,963 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 77 treesize of output 129 [2021-05-03 22:58:27,975 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 22:58:28,109 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2021-05-03 22:58:28,111 INFO L628 ElimStorePlain]: treesize reduction 121, result has 64.4 percent of original size [2021-05-03 22:58:28,164 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 22:58:28,165 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:88, output treesize:102 [2021-05-03 22:58:28,832 INFO L354 Elim1Store]: treesize reduction 112, result has 0.9 percent of original size [2021-05-03 22:58:28,833 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 55 treesize of output 19 [2021-05-03 22:58:28,835 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 22:58:28,838 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 22:58:28,838 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 22:58:28,838 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:56, output treesize:5 [2021-05-03 22:58:28,851 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 22:58:28,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 22:58:28,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 32] total 62 [2021-05-03 22:58:28,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110575605] [2021-05-03 22:58:28,851 INFO L460 AbstractCegarLoop]: Interpolant automaton has 63 states [2021-05-03 22:58:28,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 22:58:28,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-05-03 22:58:28,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=408, Invalid=3498, Unknown=0, NotChecked=0, Total=3906 [2021-05-03 22:58:28,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 22:58:28,854 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 22:58:28,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 63 states, 63 states have (on average 1.6507936507936507) internal successors, (104), 62 states have internal predecessors, (104), 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) [2021-05-03 22:58:28,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 22:58:28,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 22:58:28,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 22:58:28,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-05-03 22:58:28,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-05-03 22:58:28,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-05-03 22:58:28,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-05-03 22:58:28,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 22:58:30,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 22:58:30,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 22:58:30,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 22:58:30,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-03 22:58:30,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-03 22:58:30,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-03 22:58:30,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-03 22:58:30,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-03 22:58:30,698 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable96 [2021-05-03 22:58:30,699 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 22:58:30,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 22:58:30,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1788894597, now seen corresponding path program 8 times [2021-05-03 22:58:30,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 22:58:30,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682068956] [2021-05-03 22:58:30,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 22:58:30,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 22:58:30,805 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 66 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 22:58:30,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682068956] [2021-05-03 22:58:30,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809631319] [2021-05-03 22:58:30,805 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 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 [2021-05-03 22:58:30,831 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 22:58:30,832 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 22:58:30,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 12 conjunts are in the unsatisfiable core [2021-05-03 22:58:30,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 22:58:30,916 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 66 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 22:58:30,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 22:58:30,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7] total 14 [2021-05-03 22:58:30,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244151729] [2021-05-03 22:58:30,917 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-05-03 22:58:30,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 22:58:30,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-05-03 22:58:30,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=126, Unknown=0, NotChecked=0, Total=210 [2021-05-03 22:58:30,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 22:58:30,917 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 22:58:30,918 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 6.466666666666667) internal successors, (97), 14 states have internal predecessors, (97), 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) [2021-05-03 22:58:30,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 22:58:30,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 22:58:30,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 22:58:30,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-05-03 22:58:30,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-05-03 22:58:30,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-05-03 22:58:30,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-05-03 22:58:30,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-05-03 22:58:30,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 22:58:30,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 22:58:30,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 22:58:30,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 22:58:30,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-03 22:58:30,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-03 22:58:30,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-03 22:58:30,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-03 22:58:30,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-03 22:58:30,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-03 22:58:31,172 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 22:58:31,173 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 22:58:31,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 22:58:31,173 INFO L82 PathProgramCache]: Analyzing trace with hash -366499493, now seen corresponding path program 9 times [2021-05-03 22:58:31,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 22:58:31,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645910251] [2021-05-03 22:58:31,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 22:58:31,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 22:58:32,464 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 22:58:32,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645910251] [2021-05-03 22:58:32,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701231997] [2021-05-03 22:58:32,464 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 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 [2021-05-03 22:58:32,501 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-05-03 22:58:32,501 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 22:58:32,502 WARN L261 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 72 conjunts are in the unsatisfiable core [2021-05-03 22:58:32,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 22:58:33,852 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 22:58:33,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 93 treesize of output 179 [2021-05-03 22:58:33,866 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 22:58:34,059 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 91 [2021-05-03 22:58:34,059 INFO L628 ElimStorePlain]: treesize reduction 220, result has 56.3 percent of original size [2021-05-03 22:58:34,117 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 22:58:34,118 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:104, output treesize:70 [2021-05-03 22:58:35,483 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-03 22:58:36,274 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 77 [2021-05-03 22:58:36,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,615 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 22:58:36,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,648 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 22:58:36,756 INFO L354 Elim1Store]: treesize reduction 52, result has 66.9 percent of original size [2021-05-03 22:58:36,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 22 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 17 case distinctions, treesize of input 77 treesize of output 129 [2021-05-03 22:58:36,949 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 22:58:36,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:36,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,106 INFO L354 Elim1Store]: treesize reduction 104, result has 38.5 percent of original size [2021-05-03 22:58:37,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 21 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 15 case distinctions, treesize of input 79 treesize of output 89 [2021-05-03 22:58:37,122 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 22:58:37,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,293 INFO L354 Elim1Store]: treesize reduction 114, result has 44.4 percent of original size [2021-05-03 22:58:37,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 27 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 18 case distinctions, treesize of input 79 treesize of output 115 [2021-05-03 22:58:37,343 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 22:58:37,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 22:58:37,424 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 22:58:37,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 17 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 11 case distinctions, treesize of input 68 treesize of output 142 [2021-05-03 22:58:37,959 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 3 xjuncts. [2021-05-03 22:58:38,153 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 68 [2021-05-03 22:58:38,154 INFO L628 ElimStorePlain]: treesize reduction 472, result has 30.9 percent of original size [2021-05-03 22:58:38,182 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, End of recursive call: and 7 xjuncts. [2021-05-03 22:58:38,182 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:377, output treesize:122 [2021-05-03 22:58:38,318 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 22:58:38,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 22:58:38,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 39] total 79 [2021-05-03 22:58:38,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569627114] [2021-05-03 22:58:38,319 INFO L460 AbstractCegarLoop]: Interpolant automaton has 80 states [2021-05-03 22:58:38,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 22:58:38,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2021-05-03 22:58:38,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=587, Invalid=5733, Unknown=0, NotChecked=0, Total=6320 [2021-05-03 22:58:38,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 22:58:38,322 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 22:58:38,322 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 80 states, 80 states have (on average 1.625) internal successors, (130), 79 states have internal predecessors, (130), 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) [2021-05-03 22:58:38,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 22:58:38,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 22:58:38,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 22:58:38,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-05-03 22:58:38,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-05-03 22:58:38,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-05-03 22:58:38,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-05-03 22:58:38,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-05-03 22:58:38,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-05-03 22:58:38,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 22:58:41,980 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-05-03 22:58:43,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 22:58:43,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 22:58:43,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 22:58:43,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-03 22:58:43,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-03 22:58:43,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-03 22:58:43,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-03 22:58:43,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-03 22:58:43,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-03 22:58:43,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-05-03 22:58:43,905 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 22:58:43,905 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 22:58:43,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 22:58:43,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1675123490, now seen corresponding path program 10 times [2021-05-03 22:58:43,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 22:58:43,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211530815] [2021-05-03 22:58:43,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 22:58:43,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 22:58:45,660 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 203 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 22:58:45,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211530815] [2021-05-03 22:58:45,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922735683] [2021-05-03 22:58:45,661 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 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 [2021-05-03 22:58:45,701 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 22:58:45,701 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 22:58:45,702 WARN L261 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 83 conjunts are in the unsatisfiable core [2021-05-03 22:58:45,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 22:58:50,564 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 22:58:50,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 109 treesize of output 237 [2021-05-03 22:58:50,586 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 22:58:50,920 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 124 [2021-05-03 22:58:50,921 INFO L628 ElimStorePlain]: treesize reduction 290, result has 58.6 percent of original size [2021-05-03 22:58:51,014 INFO L550 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 22:58:51,014 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 9 variables, input treesize:120, output treesize:105 [2021-05-03 22:58:52,574 INFO L354 Elim1Store]: treesize reduction 240, result has 0.4 percent of original size [2021-05-03 22:58:52,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 77 treesize of output 25 [2021-05-03 22:58:52,576 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 22:58:52,579 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 22:58:52,580 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 22:58:52,580 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:78, output treesize:5 [2021-05-03 22:58:52,590 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 203 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 22:58:52,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 22:58:52,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 44] total 88 [2021-05-03 22:58:52,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039374998] [2021-05-03 22:58:52,591 INFO L460 AbstractCegarLoop]: Interpolant automaton has 89 states [2021-05-03 22:58:52,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 22:58:52,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2021-05-03 22:58:52,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=697, Invalid=7135, Unknown=0, NotChecked=0, Total=7832 [2021-05-03 22:58:52,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 22:58:52,593 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 22:58:52,593 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 89 states, 89 states have (on average 1.5730337078651686) internal successors, (140), 88 states have internal predecessors, (140), 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) [2021-05-03 22:58:52,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 22:58:52,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 22:58:52,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 22:58:52,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-05-03 22:58:52,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-05-03 22:58:52,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-05-03 22:58:52,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-05-03 22:58:52,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-05-03 22:58:52,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-05-03 22:58:52,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-05-03 22:58:52,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 22:58:55,683 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-05-03 22:59:14,433 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2021-05-03 22:59:14,634 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable597 [2021-05-03 22:59:14,635 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:226) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:153) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkValidity(IncrementalHoareTripleChecker.java:676) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkInternal(IncrementalHoareTripleChecker.java:143) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ProtectiveHoareTripleChecker.checkInternal(ProtectiveHoareTripleChecker.java:61) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.EfficientHoareTripleChecker.checkInternal(EfficientHoareTripleChecker.java:63) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:357) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.addOtherSuccessors(DeterministicInterpolantAutomaton.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:200) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SleepSetDelayReduction.search(SleepSetDelayReduction.java:183) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SleepSetDelayReduction.(SleepSetDelayReduction.java:111) at de.uni_freiburg.informatik.ultimate.automata.partialorder.PersistentSetReduction.applyDelaySetReduction(PersistentSetReduction.java:78) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isAbstractionEmpty(PartialOrderCegarLoop.java:221) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:507) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) 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.iterateAllErrorsAtOnce(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:131) 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:206) ... 41 more [2021-05-03 22:59:14,640 INFO L168 Benchmark]: Toolchain (without parser) took 59632.91 ms. Allocated memory was 383.8 MB in the beginning and 574.6 MB in the end (delta: 190.8 MB). Free memory was 363.8 MB in the beginning and 374.2 MB in the end (delta: -10.3 MB). Peak memory consumption was 183.0 MB. Max. memory is 16.0 GB. [2021-05-03 22:59:14,640 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 383.8 MB. Free memory is still 364.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-05-03 22:59:14,640 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.46 ms. Allocated memory is still 383.8 MB. Free memory was 363.7 MB in the beginning and 362.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-03 22:59:14,640 INFO L168 Benchmark]: Boogie Preprocessor took 14.04 ms. Allocated memory is still 383.8 MB. Free memory was 362.3 MB in the beginning and 361.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-03 22:59:14,640 INFO L168 Benchmark]: RCFGBuilder took 217.13 ms. Allocated memory is still 383.8 MB. Free memory was 361.3 MB in the beginning and 348.4 MB in the end (delta: 12.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-05-03 22:59:14,640 INFO L168 Benchmark]: TraceAbstraction took 59354.19 ms. Allocated memory was 383.8 MB in the beginning and 574.6 MB in the end (delta: 190.8 MB). Free memory was 347.9 MB in the beginning and 374.2 MB in the end (delta: -26.2 MB). Peak memory consumption was 166.2 MB. Max. memory is 16.0 GB. [2021-05-03 22:59:14,641 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 383.8 MB. Free memory is still 364.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 22.46 ms. Allocated memory is still 383.8 MB. Free memory was 363.7 MB in the beginning and 362.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 14.04 ms. Allocated memory is still 383.8 MB. Free memory was 362.3 MB in the beginning and 361.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 217.13 ms. Allocated memory is still 383.8 MB. Free memory was 361.3 MB in the beginning and 348.4 MB in the end (delta: 12.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 59354.19 ms. Allocated memory was 383.8 MB in the beginning and 574.6 MB in the end (delta: 190.8 MB). Free memory was 347.9 MB in the beginning and 374.2 MB in the end (delta: -26.2 MB). Peak memory consumption was 166.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...