/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random521.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-06 23:25:28,253 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-06 23:25:28,254 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-06 23:25:28,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-06 23:25:28,296 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random521.epf [2021-06-06 23:25:28,317 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-06 23:25:28,317 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-06 23:25:28,317 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-06 23:25:28,317 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-06 23:25:28,318 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-06 23:25:28,318 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-06 23:25:28,318 INFO L138 SettingsManager]: * Use SBE=true [2021-06-06 23:25:28,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-06 23:25:28,318 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-06 23:25:28,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-06 23:25:28,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-06 23:25:28,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-06 23:25:28,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-06 23:25:28,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-06 23:25:28,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-06 23:25:28,319 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-06 23:25:28,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-06 23:25:28,319 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-06 23:25:28,319 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-06 23:25:28,319 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-06 23:25:28,319 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-06 23:25:28,319 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-06 23:25:28,319 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-06 23:25:28,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 23:25:28,320 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-06 23:25:28,320 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-06 23:25:28,320 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-06 23:25:28,320 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-06 23:25:28,320 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-06 23:25:28,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-06 23:25:28,320 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-06 23:25:28,320 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-06 23:25:28,320 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-06 23:25:28,323 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-06 23:25:28,323 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-06 23:25:28,324 INFO L138 SettingsManager]: * Random seed used by POR DFS order=521 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-06 23:25:28,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-06 23:25:28,561 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-06 23:25:28,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-06 23:25:28,563 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-06 23:25:28,569 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-06 23:25:28,570 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl [2021-06-06 23:25:28,570 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl' [2021-06-06 23:25:28,590 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-06 23:25:28,592 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-06 23:25:28,592 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-06 23:25:28,592 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-06 23:25:28,593 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-06 23:25:28,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:25:28" (1/1) ... [2021-06-06 23:25:28,605 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:25:28" (1/1) ... [2021-06-06 23:25:28,610 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-06 23:25:28,612 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-06 23:25:28,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-06 23:25:28,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-06 23:25:28,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:25:28" (1/1) ... [2021-06-06 23:25:28,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:25:28" (1/1) ... [2021-06-06 23:25:28,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:25:28" (1/1) ... [2021-06-06 23:25:28,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:25:28" (1/1) ... [2021-06-06 23:25:28,620 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:25:28" (1/1) ... [2021-06-06 23:25:28,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:25:28" (1/1) ... [2021-06-06 23:25:28,625 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:25:28" (1/1) ... [2021-06-06 23:25:28,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-06 23:25:28,628 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-06 23:25:28,628 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-06 23:25:28,628 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-06 23:25:28,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:25:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 23:25:28,684 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-06 23:25:28,685 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-06 23:25:28,685 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-06 23:25:28,685 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-06 23:25:28,685 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-06 23:25:28,685 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-06 23:25:28,685 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-06 23:25:28,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-06 23:25:28,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-06 23:25:28,685 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-06 23:25:28,685 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-06 23:25:28,685 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-06 23:25:28,686 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-06 23:25:28,884 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-06 23:25:28,884 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-06 23:25:28,886 INFO L202 PluginConnector]: Adding new model sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 11:25:28 BoogieIcfgContainer [2021-06-06 23:25:28,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-06 23:25:28,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-06 23:25:28,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-06 23:25:28,889 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-06 23:25:28,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:25:28" (1/2) ... [2021-06-06 23:25:28,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dba919 and model type sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.06 11:25:28, skipping insertion in model container [2021-06-06 23:25:28,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 11:25:28" (2/2) ... [2021-06-06 23:25:28,891 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-fun-alt.wvr.bpl [2021-06-06 23:25:28,894 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-06 23:25:28,894 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-06 23:25:28,895 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-06 23:25:28,895 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-06 23:25:28,921 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-06 23:25:28,935 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-06-06 23:25:28,999 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-06 23:25:28,999 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-06 23:25:29,000 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-06 23:25:29,000 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-06 23:25:29,000 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-06 23:25:29,000 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-06 23:25:29,000 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-06 23:25:29,000 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-06 23:25:29,085 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:25:29,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:25:29,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1529172741, now seen corresponding path program 1 times [2021-06-06 23:25:29,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:25:29,103 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863836624] [2021-06-06 23:25:29,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:25:29,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:25:29,281 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:25:29,282 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:25:29,282 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863836624] [2021-06-06 23:25:29,282 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863836624] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 23:25:29,282 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 23:25:29,282 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-06 23:25:29,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830714468] [2021-06-06 23:25:29,285 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-06 23:25:29,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 23:25:29,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-06 23:25:29,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-06 23:25:29,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:29,295 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 23:25:29,299 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 23:25:29,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:29,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:29,354 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-06 23:25:29,354 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:25:29,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:25:29,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1702466087, now seen corresponding path program 1 times [2021-06-06 23:25:29,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:25:29,358 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434325173] [2021-06-06 23:25:29,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:25:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:25:29,397 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 23:25:29,397 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:25:29,397 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434325173] [2021-06-06 23:25:29,397 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434325173] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 23:25:29,397 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 23:25:29,398 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-06 23:25:29,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243391123] [2021-06-06 23:25:29,399 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-06 23:25:29,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 23:25:29,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-06 23:25:29,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-06 23:25:29,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:29,400 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 23:25:29,400 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 23:25:29,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:29,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:29,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:29,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:29,437 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-06 23:25:29,437 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:25:29,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:25:29,437 INFO L82 PathProgramCache]: Analyzing trace with hash -458906501, now seen corresponding path program 1 times [2021-06-06 23:25:29,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:25:29,438 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481308761] [2021-06-06 23:25:29,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:25:29,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:25:29,486 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 23:25:29,486 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:25:29,487 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481308761] [2021-06-06 23:25:29,487 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481308761] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:29,487 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016436626] [2021-06-06 23:25:29,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:25:29,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:25:29,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-06 23:25:29,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 23:25:29,668 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 23:25:29,669 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016436626] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:29,669 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 23:25:29,669 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-06-06 23:25:29,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172845585] [2021-06-06 23:25:29,669 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-06 23:25:29,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 23:25:29,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-06 23:25:29,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-06 23:25:29,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:29,670 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 23:25:29,670 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 23:25:29,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:29,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:29,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:29,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:29,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:29,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:29,986 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:25:29,986 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:25:29,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:25:29,987 INFO L82 PathProgramCache]: Analyzing trace with hash -1431714215, now seen corresponding path program 2 times [2021-06-06 23:25:29,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:25:29,987 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621014975] [2021-06-06 23:25:29,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:25:30,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:25:30,305 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:25:30,306 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:25:30,306 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621014975] [2021-06-06 23:25:30,306 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621014975] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:30,306 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128263175] [2021-06-06 23:25:30,306 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:25:30,356 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 23:25:30,356 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 23:25:30,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 26 conjunts are in the unsatisfiable core [2021-06-06 23:25:30,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 23:25:30,577 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 23:25:30,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2021-06-06 23:25:30,601 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-06-06 23:25:30,621 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 23:25:30,660 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 23:25:30,660 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:33, output treesize:91 [2021-06-06 23:25:30,797 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:25:30,797 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128263175] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:30,797 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 23:25:30,801 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-06-06 23:25:30,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500750847] [2021-06-06 23:25:30,802 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-06 23:25:30,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 23:25:30,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-06 23:25:30,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2021-06-06 23:25:30,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:30,804 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 23:25:30,804 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 23:25:30,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:30,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:30,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:30,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:31,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:31,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:31,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:31,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 23:25:31,455 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:25:31,456 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:25:31,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:25:31,456 INFO L82 PathProgramCache]: Analyzing trace with hash 2943159, now seen corresponding path program 3 times [2021-06-06 23:25:31,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:25:31,456 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805547814] [2021-06-06 23:25:31,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:25:31,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:25:31,526 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:25:31,527 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:25:31,527 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805547814] [2021-06-06 23:25:31,527 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805547814] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:31,527 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290054464] [2021-06-06 23:25:31,528 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 [2021-06-06 23:25:31,569 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-06-06 23:25:31,569 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 23:25:31,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-06 23:25:31,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 23:25:31,697 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:25:31,697 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290054464] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:31,697 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 23:25:31,697 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2021-06-06 23:25:31,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140590067] [2021-06-06 23:25:31,697 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-06 23:25:31,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 23:25:31,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-06 23:25:31,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2021-06-06 23:25:31,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:31,698 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 23:25:31,698 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 23:25:31,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:31,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:31,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:31,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 23:25:31,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:32,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:32,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:32,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:32,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 23:25:32,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 23:25:32,288 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:25:32,289 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:25:32,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:25:32,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1443296635, now seen corresponding path program 4 times [2021-06-06 23:25:32,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:25:32,289 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098339715] [2021-06-06 23:25:32,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:25:32,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:25:32,358 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 23:25:32,358 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:25:32,358 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098339715] [2021-06-06 23:25:32,358 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098339715] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:32,358 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159375695] [2021-06-06 23:25:32,358 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 [2021-06-06 23:25:32,404 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 23:25:32,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 23:25:32,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-06 23:25:32,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 23:25:32,495 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 23:25:32,495 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159375695] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:32,495 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 23:25:32,495 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2021-06-06 23:25:32,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788841613] [2021-06-06 23:25:32,496 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-06 23:25:32,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 23:25:32,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-06 23:25:32,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2021-06-06 23:25:32,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:32,496 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 23:25:32,496 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 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) [2021-06-06 23:25:32,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:32,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:32,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:32,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 23:25:32,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 23:25:32,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:32,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:32,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:32,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:32,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 23:25:32,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 23:25:32,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 23:25:32,797 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-06-06 23:25:32,797 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:25:32,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:25:32,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1035098457, now seen corresponding path program 5 times [2021-06-06 23:25:32,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:25:32,798 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288294638] [2021-06-06 23:25:32,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:25:32,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:25:33,189 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:25:33,189 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:25:33,189 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288294638] [2021-06-06 23:25:33,190 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288294638] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:33,190 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387826220] [2021-06-06 23:25:33,190 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 [2021-06-06 23:25:33,237 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-06-06 23:25:33,237 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 23:25:33,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 39 conjunts are in the unsatisfiable core [2021-06-06 23:25:33,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 23:25:33,688 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 23:25:33,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:33,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:33,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:33,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2021-06-06 23:25:33,694 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 23:25:33,699 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 23:25:33,700 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 23:25:33,700 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:42, output treesize:3 [2021-06-06 23:25:33,725 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:25:33,727 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387826220] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:33,727 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 23:25:33,727 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 27 [2021-06-06 23:25:33,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787615315] [2021-06-06 23:25:33,728 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-06 23:25:33,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 23:25:33,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-06 23:25:33,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2021-06-06 23:25:33,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:33,731 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 23:25:33,732 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.185185185185185) 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) [2021-06-06 23:25:33,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:33,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:33,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:33,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 23:25:33,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 23:25:33,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 23:25:33,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:34,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:34,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:34,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:34,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 23:25:34,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 23:25:34,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 23:25:34,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 23:25:34,724 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:25:34,724 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:25:34,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:25:34,724 INFO L82 PathProgramCache]: Analyzing trace with hash -401326665, now seen corresponding path program 6 times [2021-06-06 23:25:34,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:25:34,725 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768002456] [2021-06-06 23:25:34,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:25:34,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:25:34,820 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 9 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:25:34,820 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:25:34,820 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768002456] [2021-06-06 23:25:34,820 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768002456] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:34,820 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78339854] [2021-06-06 23:25:34,820 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 [2021-06-06 23:25:34,849 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-06-06 23:25:34,850 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 23:25:34,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-06 23:25:34,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 23:25:35,098 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:25:35,099 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78339854] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:35,099 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 23:25:35,099 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2021-06-06 23:25:35,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040343536] [2021-06-06 23:25:35,099 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-06 23:25:35,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 23:25:35,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-06 23:25:35,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2021-06-06 23:25:35,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:35,100 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 23:25:35,100 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.52) internal successors, (63), 25 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 23:25:35,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:35,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:35,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:35,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 23:25:35,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 23:25:35,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 23:25:35,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 23:25:35,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:35,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:35,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:35,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:35,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 23:25:35,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 23:25:35,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 23:25:35,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 23:25:35,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-06 23:25:35,977 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:25:35,977 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:25:35,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:25:35,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1606694277, now seen corresponding path program 7 times [2021-06-06 23:25:35,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:25:35,978 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579301605] [2021-06-06 23:25:35,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:25:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:25:36,085 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 21 proven. 29 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 23:25:36,085 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:25:36,085 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579301605] [2021-06-06 23:25:36,085 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579301605] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:36,086 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502139143] [2021-06-06 23:25:36,086 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 [2021-06-06 23:25:36,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:25:36,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-06 23:25:36,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 23:25:36,282 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 21 proven. 29 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 23:25:36,283 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502139143] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:36,283 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 23:25:36,283 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 20 [2021-06-06 23:25:36,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671965823] [2021-06-06 23:25:36,283 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-06 23:25:36,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 23:25:36,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-06 23:25:36,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2021-06-06 23:25:36,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:36,284 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 23:25:36,284 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.85) internal successors, (57), 20 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 23:25:36,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:36,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:36,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:36,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 23:25:36,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 23:25:36,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 23:25:36,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 23:25:36,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-06-06 23:25:36,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:36,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:36,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:36,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:36,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 23:25:36,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 23:25:36,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 23:25:36,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 23:25:36,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-06 23:25:36,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:25:36,628 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-06-06 23:25:36,629 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:25:36,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:25:36,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1221824423, now seen corresponding path program 8 times [2021-06-06 23:25:36,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:25:36,630 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324663611] [2021-06-06 23:25:36,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:25:36,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:25:37,353 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:25:37,353 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:25:37,353 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324663611] [2021-06-06 23:25:37,354 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324663611] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:37,354 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020331799] [2021-06-06 23:25:37,354 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 [2021-06-06 23:25:37,385 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 23:25:37,385 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 23:25:37,386 WARN L261 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 56 conjunts are in the unsatisfiable core [2021-06-06 23:25:37,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 23:25:38,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:38,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:38,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:38,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:38,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:38,021 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 23:25:38,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 20 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 27 [2021-06-06 23:25:38,024 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: and 2 xjuncts. [2021-06-06 23:25:38,030 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 23:25:38,031 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 23:25:38,031 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:49, output treesize:15 [2021-06-06 23:25:38,107 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:25:38,107 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020331799] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:38,107 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 23:25:38,107 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 18] total 36 [2021-06-06 23:25:38,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703524826] [2021-06-06 23:25:38,108 INFO L462 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-06-06 23:25:38,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 23:25:38,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-06-06 23:25:38,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1145, Unknown=0, NotChecked=0, Total=1260 [2021-06-06 23:25:38,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:38,108 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 23:25:38,109 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 2.1666666666666665) internal successors, (78), 36 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 23:25:38,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:38,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:38,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:38,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 23:25:38,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 23:25:38,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 23:25:38,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 23:25:38,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-06-06 23:25:38,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:25:38,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:40,363 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 64 [2021-06-06 23:25:40,508 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 79 [2021-06-06 23:25:41,571 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-06-06 23:25:41,827 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 88 [2021-06-06 23:25:41,989 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2021-06-06 23:25:42,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:42,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:42,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:42,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 23:25:42,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 23:25:42,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 23:25:42,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 23:25:42,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-06 23:25:42,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:25:42,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-06 23:25:42,309 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-06-06 23:25:42,309 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:25:42,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:25:42,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1036660057, now seen corresponding path program 9 times [2021-06-06 23:25:42,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:25:42,310 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786790074] [2021-06-06 23:25:42,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:25:42,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:25:43,182 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 6 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:25:43,182 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:25:43,182 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786790074] [2021-06-06 23:25:43,182 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786790074] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:43,183 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160020802] [2021-06-06 23:25:43,183 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 [2021-06-06 23:25:43,217 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-06-06 23:25:43,217 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 23:25:43,218 WARN L261 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 69 conjunts are in the unsatisfiable core [2021-06-06 23:25:43,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 23:25:44,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:44,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:44,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:44,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:44,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:44,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:44,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:44,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:44,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:44,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:44,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:44,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:44,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:44,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:44,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:44,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:44,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:44,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:44,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:44,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:44,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:44,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:44,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:44,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:44,212 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 23:25:44,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 39 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 79 [2021-06-06 23:25:44,236 INFO L550 ElimStorePlain]: Start of recursive call 2: 4 dim-0 vars, End of recursive call: and 3 xjuncts. [2021-06-06 23:25:44,259 INFO L628 ElimStorePlain]: treesize reduction 4, result has 89.2 percent of original size [2021-06-06 23:25:44,262 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 23:25:44,263 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:77, output treesize:27 [2021-06-06 23:25:44,393 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:25:44,394 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160020802] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:44,394 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 23:25:44,394 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 24] total 42 [2021-06-06 23:25:44,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098644531] [2021-06-06 23:25:44,394 INFO L462 AbstractCegarLoop]: Interpolant automaton has 42 states [2021-06-06 23:25:44,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 23:25:44,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-06-06 23:25:44,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=1545, Unknown=0, NotChecked=0, Total=1722 [2021-06-06 23:25:44,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:44,395 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 23:25:44,395 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 42 states, 42 states have (on average 2.0) internal successors, (84), 42 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 23:25:44,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:44,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:44,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:44,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 23:25:44,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 23:25:44,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 23:25:44,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 23:25:44,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-06-06 23:25:44,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:25:44,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-06-06 23:25:44,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:46,483 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 82 [2021-06-06 23:25:46,672 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 77 [2021-06-06 23:25:46,878 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 85 [2021-06-06 23:25:47,054 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 88 [2021-06-06 23:25:47,220 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 60 [2021-06-06 23:25:47,362 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 85 [2021-06-06 23:25:47,531 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 67 [2021-06-06 23:25:47,706 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 85 [2021-06-06 23:25:49,286 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 95 [2021-06-06 23:25:49,450 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 92 [2021-06-06 23:25:49,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:49,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:49,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:49,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 23:25:49,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 23:25:49,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 23:25:49,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 23:25:49,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-06 23:25:49,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:25:49,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-06 23:25:49,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-06-06 23:25:49,888 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-06-06 23:25:49,889 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:25:49,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:25:49,889 INFO L82 PathProgramCache]: Analyzing trace with hash 695339865, now seen corresponding path program 10 times [2021-06-06 23:25:49,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:25:49,889 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820967520] [2021-06-06 23:25:49,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:25:49,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:25:50,695 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 12 proven. 102 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:25:50,696 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:25:50,696 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820967520] [2021-06-06 23:25:50,696 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820967520] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:50,696 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1447777534] [2021-06-06 23:25:50,696 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 [2021-06-06 23:25:50,729 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 23:25:50,729 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 23:25:50,730 WARN L261 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 72 conjunts are in the unsatisfiable core [2021-06-06 23:25:50,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 23:25:51,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:51,678 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 23:25:51,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:51,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:51,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:51,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:51,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:51,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:51,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 28 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 23 [2021-06-06 23:25:51,684 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 23:25:51,689 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 23:25:51,690 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 23:25:51,690 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:64, output treesize:3 [2021-06-06 23:25:51,734 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:25:51,735 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1447777534] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:51,735 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 23:25:51,735 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 23] total 43 [2021-06-06 23:25:51,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267457542] [2021-06-06 23:25:51,735 INFO L462 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-06-06 23:25:51,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 23:25:51,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-06-06 23:25:51,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1617, Unknown=0, NotChecked=0, Total=1806 [2021-06-06 23:25:51,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:51,736 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 23:25:51,736 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 43 states, 43 states have (on average 2.13953488372093) internal successors, (92), 43 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 23:25:51,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:51,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:51,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:51,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 23:25:51,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 23:25:51,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 23:25:51,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 23:25:51,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-06-06 23:25:51,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:25:51,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-06-06 23:25:51,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2021-06-06 23:25:51,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:52,948 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 98 [2021-06-06 23:25:53,181 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 108 [2021-06-06 23:25:53,600 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 90 [2021-06-06 23:25:53,784 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 97 [2021-06-06 23:25:55,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:55,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:55,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:55,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 23:25:55,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 23:25:55,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 23:25:55,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 23:25:55,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-06 23:25:55,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:25:55,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-06 23:25:55,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-06-06 23:25:55,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-06-06 23:25:55,777 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-06-06 23:25:55,777 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:25:55,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:25:55,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1820805721, now seen corresponding path program 11 times [2021-06-06 23:25:55,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:25:55,777 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565679770] [2021-06-06 23:25:55,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:25:55,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:25:56,849 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 20 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:25:56,850 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:25:56,850 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565679770] [2021-06-06 23:25:56,850 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565679770] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:56,850 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071718009] [2021-06-06 23:25:56,850 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:25:56,888 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2021-06-06 23:25:56,888 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 23:25:56,889 WARN L261 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 80 conjunts are in the unsatisfiable core [2021-06-06 23:25:56,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 23:25:57,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:57,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:57,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:57,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:57,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:57,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:57,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:57,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:57,832 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 23:25:57,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 44 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 33 [2021-06-06 23:25:57,834 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: and 2 xjuncts. [2021-06-06 23:25:57,839 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 23:25:57,840 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 23:25:57,840 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:15 [2021-06-06 23:25:57,920 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:25:57,920 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071718009] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:57,920 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 23:25:57,920 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 24] total 48 [2021-06-06 23:25:57,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994128106] [2021-06-06 23:25:57,920 INFO L462 AbstractCegarLoop]: Interpolant automaton has 48 states [2021-06-06 23:25:57,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 23:25:57,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-06-06 23:25:57,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=2081, Unknown=0, NotChecked=0, Total=2256 [2021-06-06 23:25:57,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:57,921 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 23:25:57,922 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 48 states, 48 states have (on average 2.125) internal successors, (102), 48 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 23:25:57,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:57,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:57,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:57,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 23:25:57,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 23:25:57,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 23:25:57,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 23:25:57,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-06-06 23:25:57,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:25:57,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-06-06 23:25:57,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2021-06-06 23:25:57,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-06-06 23:25:57,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:26:00,745 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 88 [2021-06-06 23:26:00,916 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 83 [2021-06-06 23:26:01,128 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 100 [2021-06-06 23:26:01,285 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 69 [2021-06-06 23:26:01,446 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 98 [2021-06-06 23:26:01,625 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 76 [2021-06-06 23:26:01,823 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 99 [2021-06-06 23:26:03,701 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 107 [2021-06-06 23:26:03,912 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 105 [2021-06-06 23:26:04,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:26:04,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:26:04,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:26:04,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 23:26:04,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 23:26:04,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 23:26:04,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 23:26:04,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-06 23:26:04,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:26:04,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-06 23:26:04,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-06-06 23:26:04,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-06-06 23:26:04,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-06-06 23:26:04,400 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-06-06 23:26:04,400 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:26:04,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:26:04,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1843210841, now seen corresponding path program 12 times [2021-06-06 23:26:04,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:26:04,400 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647745932] [2021-06-06 23:26:04,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:26:04,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:26:05,392 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 24 proven. 158 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:26:05,392 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:26:05,392 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647745932] [2021-06-06 23:26:05,392 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647745932] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:26:05,392 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146672787] [2021-06-06 23:26:05,392 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:26:05,434 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2021-06-06 23:26:05,434 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 23:26:05,435 WARN L261 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 93 conjunts are in the unsatisfiable core [2021-06-06 23:26:05,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 23:26:06,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:06,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:06,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:06,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:06,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:06,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:06,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:06,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:06,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:06,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:06,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:06,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:06,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:06,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:06,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:06,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:06,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:06,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:06,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:06,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:06,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:06,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:06,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:06,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:06,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:06,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:06,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:06,920 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 23:26:06,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 63 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 55 [2021-06-06 23:26:06,924 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2021-06-06 23:26:06,944 INFO L628 ElimStorePlain]: treesize reduction 4, result has 89.2 percent of original size [2021-06-06 23:26:06,947 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 23:26:06,947 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:93, output treesize:27 [2021-06-06 23:26:07,094 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:26:07,094 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146672787] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:26:07,094 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 23:26:07,094 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 30] total 54 [2021-06-06 23:26:07,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228082941] [2021-06-06 23:26:07,095 INFO L462 AbstractCegarLoop]: Interpolant automaton has 54 states [2021-06-06 23:26:07,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 23:26:07,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2021-06-06 23:26:07,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=2575, Unknown=0, NotChecked=0, Total=2862 [2021-06-06 23:26:07,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:26:07,096 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 23:26:07,096 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 54 states, 54 states have (on average 2.0) internal successors, (108), 54 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 23:26:07,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:26:07,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:26:07,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:26:07,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 23:26:07,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 23:26:07,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 23:26:07,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 23:26:07,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-06-06 23:26:07,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:26:07,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-06-06 23:26:07,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2021-06-06 23:26:07,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-06-06 23:26:07,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-06-06 23:26:07,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:26:08,957 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 111 [2021-06-06 23:26:09,226 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 121 [2021-06-06 23:26:09,711 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 99 [2021-06-06 23:26:09,903 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 106 [2021-06-06 23:26:12,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:26:12,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:26:12,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:26:12,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 23:26:12,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 23:26:12,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 23:26:12,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 23:26:12,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-06 23:26:12,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:26:12,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-06 23:26:12,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-06-06 23:26:12,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-06-06 23:26:12,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-06-06 23:26:12,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-06-06 23:26:12,538 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-06-06 23:26:12,538 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:26:12,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:26:12,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1934169255, now seen corresponding path program 13 times [2021-06-06 23:26:12,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:26:12,539 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426331944] [2021-06-06 23:26:12,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:26:12,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:26:13,668 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 23 proven. 199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:26:13,669 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:26:13,669 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426331944] [2021-06-06 23:26:13,669 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426331944] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:26:13,669 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70460908] [2021-06-06 23:26:13,669 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:26:13,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:26:13,710 WARN L261 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 96 conjunts are in the unsatisfiable core [2021-06-06 23:26:13,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 23:26:15,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:15,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:15,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:15,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:15,285 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 23:26:15,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:15,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:15,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:15,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:15,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:15,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:15,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 55 disjoint index pairs (out of 66 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 29 [2021-06-06 23:26:15,291 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 23:26:15,295 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 23:26:15,296 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 23:26:15,296 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:82, output treesize:3 [2021-06-06 23:26:15,331 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:26:15,331 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70460908] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:26:15,331 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 23:26:15,331 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 29] total 55 [2021-06-06 23:26:15,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041330083] [2021-06-06 23:26:15,331 INFO L462 AbstractCegarLoop]: Interpolant automaton has 55 states [2021-06-06 23:26:15,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 23:26:15,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-06-06 23:26:15,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=289, Invalid=2681, Unknown=0, NotChecked=0, Total=2970 [2021-06-06 23:26:15,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:26:15,333 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 23:26:15,333 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 55 states, 55 states have (on average 2.109090909090909) internal successors, (116), 55 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 23:26:15,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:26:15,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:26:15,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:26:15,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 23:26:15,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 23:26:15,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 23:26:15,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 23:26:15,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-06-06 23:26:15,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:26:15,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-06-06 23:26:15,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2021-06-06 23:26:15,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-06-06 23:26:15,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-06-06 23:26:15,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-06-06 23:26:15,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:26:17,437 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 118 [2021-06-06 23:26:17,717 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 128 [2021-06-06 23:26:18,237 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 104 [2021-06-06 23:26:18,453 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 111 [2021-06-06 23:26:21,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:26:21,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:26:21,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:26:21,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 23:26:21,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 23:26:21,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 23:26:21,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 23:26:21,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-06 23:26:21,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:26:21,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-06 23:26:21,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-06-06 23:26:21,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-06-06 23:26:21,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-06-06 23:26:21,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-06-06 23:26:21,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-06-06 23:26:21,319 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:26:21,320 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:26:21,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:26:21,320 INFO L82 PathProgramCache]: Analyzing trace with hash -1530409639, now seen corresponding path program 14 times [2021-06-06 23:26:21,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:26:21,320 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082894976] [2021-06-06 23:26:21,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:26:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:26:22,819 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 32 proven. 234 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:26:22,819 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:26:22,820 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082894976] [2021-06-06 23:26:22,820 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082894976] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:26:22,820 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40507303] [2021-06-06 23:26:22,820 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 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:26:22,859 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 23:26:22,859 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 23:26:22,860 WARN L261 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 104 conjunts are in the unsatisfiable core [2021-06-06 23:26:22,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 23:26:24,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:24,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:24,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:24,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:24,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:24,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:24,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:24,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:24,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:24,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:24,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:24,505 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 23:26:24,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 13 select indices, 13 select index equivalence classes, 77 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 39 [2021-06-06 23:26:24,506 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: and 2 xjuncts. [2021-06-06 23:26:24,511 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 23:26:24,512 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 23:26:24,512 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:85, output treesize:15 [2021-06-06 23:26:24,611 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 0 proven. 266 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:26:24,612 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40507303] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:26:24,612 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 23:26:24,612 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 30] total 60 [2021-06-06 23:26:24,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673655946] [2021-06-06 23:26:24,612 INFO L462 AbstractCegarLoop]: Interpolant automaton has 60 states [2021-06-06 23:26:24,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 23:26:24,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2021-06-06 23:26:24,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=241, Invalid=3299, Unknown=0, NotChecked=0, Total=3540 [2021-06-06 23:26:24,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:26:24,613 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 23:26:24,613 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 60 states, 60 states have (on average 2.1) internal successors, (126), 60 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 23:26:24,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:26:24,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:26:24,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:26:24,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 23:26:24,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 23:26:24,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 23:26:24,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 23:26:24,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-06-06 23:26:24,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:26:24,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-06-06 23:26:24,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2021-06-06 23:26:24,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-06-06 23:26:24,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-06-06 23:26:24,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-06-06 23:26:24,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2021-06-06 23:26:24,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:26:29,245 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 111 [2021-06-06 23:26:29,431 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 106 [2021-06-06 23:26:29,648 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 112 [2021-06-06 23:26:29,962 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 110 [2021-06-06 23:26:30,149 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 82 [2021-06-06 23:26:30,350 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 110 [2021-06-06 23:26:33,129 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 119 [2021-06-06 23:26:33,340 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 117 [2021-06-06 23:26:33,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:26:33,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:26:33,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:26:33,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 23:26:33,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 23:26:33,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 23:26:33,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 23:26:33,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-06 23:26:33,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:26:33,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-06 23:26:33,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-06-06 23:26:33,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-06-06 23:26:33,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-06-06 23:26:33,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-06-06 23:26:33,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-06-06 23:26:33,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-06-06 23:26:33,732 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-06-06 23:26:33,733 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:26:33,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:26:33,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1842147239, now seen corresponding path program 15 times [2021-06-06 23:26:33,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:26:33,733 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011680052] [2021-06-06 23:26:33,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:26:33,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:26:35,427 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 44 proven. 270 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:26:35,427 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:26:35,427 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011680052] [2021-06-06 23:26:35,427 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011680052] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:26:35,427 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491461632] [2021-06-06 23:26:35,427 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 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:26:35,475 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2021-06-06 23:26:35,476 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 23:26:35,477 WARN L261 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 117 conjunts are in the unsatisfiable core [2021-06-06 23:26:35,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 23:26:37,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:37,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:38,057 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 23:26:38,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 19 select indices, 19 select index equivalence classes, 150 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 21 case distinctions, treesize of input 97 treesize of output 251 [2021-06-06 23:26:38,659 WARN L205 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 193 [2021-06-06 23:26:38,984 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 202 [2021-06-06 23:26:39,147 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 159 [2021-06-06 23:26:39,348 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 110 [2021-06-06 23:26:39,575 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 156 [2021-06-06 23:26:40,446 WARN L205 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 201 [2021-06-06 23:26:40,553 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 196 [2021-06-06 23:26:40,863 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 197 [2021-06-06 23:26:42,482 WARN L205 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 197 DAG size of output: 196 [2021-06-06 23:26:42,605 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 196 [2021-06-06 23:26:43,788 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 160 DAG size of output: 172 [2021-06-06 23:26:44,592 WARN L205 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 195 [2021-06-06 23:26:45,234 WARN L205 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 197 [2021-06-06 23:26:45,237 INFO L550 ElimStorePlain]: Start of recursive call 2: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-06-06 23:26:45,392 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 22 [2021-06-06 23:26:45,393 INFO L628 ElimStorePlain]: treesize reduction 2703, result has 1.3 percent of original size [2021-06-06 23:26:45,395 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 23:26:45,395 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:123, output treesize:33 [2021-06-06 23:26:45,577 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 0 proven. 314 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:26:45,578 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1491461632] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:26:45,578 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 23:26:45,578 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 36] total 66 [2021-06-06 23:26:45,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309504112] [2021-06-06 23:26:45,578 INFO L462 AbstractCegarLoop]: Interpolant automaton has 66 states [2021-06-06 23:26:45,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 23:26:45,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-06-06 23:26:45,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=349, Invalid=3941, Unknown=0, NotChecked=0, Total=4290 [2021-06-06 23:26:45,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:26:45,579 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 23:26:45,579 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 66 states, 66 states have (on average 2.0) internal successors, (132), 66 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 23:26:45,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:26:45,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:26:45,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:26:45,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 23:26:45,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 23:26:45,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 23:26:45,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 23:26:45,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-06-06 23:26:45,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:26:45,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-06-06 23:26:45,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2021-06-06 23:26:45,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-06-06 23:26:45,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-06-06 23:26:45,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-06-06 23:26:45,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2021-06-06 23:26:45,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-06-06 23:26:45,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:26:49,058 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 111 [2021-06-06 23:26:49,657 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 115 [2021-06-06 23:26:50,119 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 91 [2021-06-06 23:26:50,446 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 119 [2021-06-06 23:26:51,116 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 123 [2021-06-06 23:26:51,353 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 125 [2021-06-06 23:26:51,575 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 91 [2021-06-06 23:26:51,968 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 114 [2021-06-06 23:26:52,319 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 109 [2021-06-06 23:26:52,628 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 117 [2021-06-06 23:26:52,884 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 119 [2021-06-06 23:26:53,097 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 80 [2021-06-06 23:26:53,287 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 117 [2021-06-06 23:26:53,526 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 87 [2021-06-06 23:26:53,774 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 117 [2021-06-06 23:26:57,053 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 126 [2021-06-06 23:26:57,305 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 124 [2021-06-06 23:26:57,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:26:57,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:26:57,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:26:57,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 23:26:57,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 23:26:57,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 23:26:57,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 23:26:57,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-06 23:26:57,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:26:57,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-06 23:26:57,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-06-06 23:26:57,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-06-06 23:26:57,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-06-06 23:26:57,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-06-06 23:26:57,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-06-06 23:26:57,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-06-06 23:26:57,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-06-06 23:26:57,929 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:26:57,929 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:26:57,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:26:57,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1249119143, now seen corresponding path program 16 times [2021-06-06 23:26:57,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:26:57,929 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190827235] [2021-06-06 23:26:57,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:26:57,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:26:59,803 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 50 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:26:59,803 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:26:59,803 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190827235] [2021-06-06 23:26:59,803 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190827235] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:26:59,803 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874232614] [2021-06-06 23:26:59,803 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 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:26:59,848 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 23:26:59,848 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 23:26:59,850 WARN L261 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 120 conjunts are in the unsatisfiable core [2021-06-06 23:26:59,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 23:27:02,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:02,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:02,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:02,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:02,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:02,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:02,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:02,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:02,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:02,238 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 23:27:02,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:02,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:02,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:02,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:02,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:02,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:02,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 15 select indices, 15 select index equivalence classes, 91 disjoint index pairs (out of 105 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 35 [2021-06-06 23:27:02,244 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 23:27:02,249 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 23:27:02,250 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 23:27:02,250 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:100, output treesize:3 [2021-06-06 23:27:02,291 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 366 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:27:02,291 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874232614] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:27:02,291 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 23:27:02,291 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 35] total 67 [2021-06-06 23:27:02,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438469913] [2021-06-06 23:27:02,291 INFO L462 AbstractCegarLoop]: Interpolant automaton has 67 states [2021-06-06 23:27:02,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 23:27:02,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2021-06-06 23:27:02,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=384, Invalid=4038, Unknown=0, NotChecked=0, Total=4422 [2021-06-06 23:27:02,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:27:02,292 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 23:27:02,293 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 67 states, 67 states have (on average 2.08955223880597) internal successors, (140), 67 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) [2021-06-06 23:27:02,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:27:02,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:27:02,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:27:02,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 23:27:02,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 23:27:02,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 23:27:02,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 23:27:02,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-06-06 23:27:02,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:27:02,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-06-06 23:27:02,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2021-06-06 23:27:02,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-06-06 23:27:02,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-06-06 23:27:02,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-06-06 23:27:02,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2021-06-06 23:27:02,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-06-06 23:27:02,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-06-06 23:27:02,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:27:07,156 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 99 [2021-06-06 23:27:07,423 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 95 [2021-06-06 23:27:07,750 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 116 [2021-06-06 23:27:08,040 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 111 [2021-06-06 23:27:08,306 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 115 [2021-06-06 23:27:08,563 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 123 [2021-06-06 23:27:08,781 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 81 [2021-06-06 23:27:08,985 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 120 [2021-06-06 23:27:09,230 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 88 [2021-06-06 23:27:09,486 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 120 [2021-06-06 23:27:12,796 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 130 [2021-06-06 23:27:13,036 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 127 [2021-06-06 23:27:13,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:27:13,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:27:13,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:27:13,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 23:27:13,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 23:27:13,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 23:27:13,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 23:27:13,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-06 23:27:13,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:27:13,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-06 23:27:13,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-06-06 23:27:13,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-06-06 23:27:13,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-06-06 23:27:13,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-06-06 23:27:13,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-06-06 23:27:13,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-06-06 23:27:13,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-06-06 23:27:13,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-06-06 23:27:13,524 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable395,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:27:13,525 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:27:13,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:27:13,525 INFO L82 PathProgramCache]: Analyzing trace with hash 2010495321, now seen corresponding path program 17 times [2021-06-06 23:27:13,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:27:13,525 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371341129] [2021-06-06 23:27:13,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:27:13,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:27:15,612 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 78 proven. 344 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:27:15,612 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:27:15,612 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371341129] [2021-06-06 23:27:15,612 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371341129] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:27:15,612 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730617000] [2021-06-06 23:27:15,612 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 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:27:15,664 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2021-06-06 23:27:15,664 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 23:27:15,666 WARN L261 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 127 conjunts are in the unsatisfiable core [2021-06-06 23:27:15,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 23:27:18,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:18,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:18,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:18,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:18,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:18,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:18,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:18,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:18,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:18,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:18,872 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 23:27:18,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:18,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:18,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:18,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:18,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:18,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:18,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:18,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 105 disjoint index pairs (out of 120 index pairs), introduced 15 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 37 [2021-06-06 23:27:18,880 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 23:27:18,884 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 23:27:18,885 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 23:27:18,885 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:108, output treesize:3 [2021-06-06 23:27:18,924 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 0 proven. 422 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:27:18,925 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730617000] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:27:18,925 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 23:27:18,925 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 37] total 73 [2021-06-06 23:27:18,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039274429] [2021-06-06 23:27:18,925 INFO L462 AbstractCegarLoop]: Interpolant automaton has 73 states [2021-06-06 23:27:18,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 23:27:18,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2021-06-06 23:27:18,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=333, Invalid=4923, Unknown=0, NotChecked=0, Total=5256 [2021-06-06 23:27:18,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:27:18,926 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 23:27:18,926 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 73 states, 73 states have (on average 2.0547945205479454) internal successors, (150), 73 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 23:27:18,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:27:18,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:27:18,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:27:18,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 23:27:18,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 23:27:18,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 23:27:18,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 23:27:18,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-06-06 23:27:18,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:27:18,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-06-06 23:27:18,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2021-06-06 23:27:18,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-06-06 23:27:18,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-06-06 23:27:18,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-06-06 23:27:18,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2021-06-06 23:27:18,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-06-06 23:27:18,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-06-06 23:27:18,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-06-06 23:27:18,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:27:24,878 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 62 [2021-06-06 23:27:26,989 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 118 [2021-06-06 23:27:27,270 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 114 [2021-06-06 23:27:27,639 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 135 [2021-06-06 23:27:27,986 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 130 [2021-06-06 23:27:28,369 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 136 [2021-06-06 23:27:28,630 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 127 [2021-06-06 23:27:28,848 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 84 [2021-06-06 23:27:29,056 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 125 [2021-06-06 23:27:29,310 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 91 [2021-06-06 23:27:29,588 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 125 [2021-06-06 23:27:33,927 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 134 [2021-06-06 23:27:34,197 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 132 [2021-06-06 23:27:34,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:27:34,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:27:34,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:27:34,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 23:27:34,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 23:27:34,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 23:27:34,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 23:27:34,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-06 23:27:34,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:27:34,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-06 23:27:34,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-06-06 23:27:34,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-06-06 23:27:34,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-06-06 23:27:34,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-06-06 23:27:34,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-06-06 23:27:34,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-06-06 23:27:34,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-06-06 23:27:34,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-06-06 23:27:34,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-06-06 23:27:34,675 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable396 [2021-06-06 23:27:34,675 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:27:34,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:27:34,675 INFO L82 PathProgramCache]: Analyzing trace with hash -830234791, now seen corresponding path program 18 times [2021-06-06 23:27:34,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:27:34,675 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829442456] [2021-06-06 23:27:34,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:27:34,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:27:36,979 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 72 proven. 410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:27:36,979 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:27:36,979 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829442456] [2021-06-06 23:27:36,979 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829442456] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:27:36,980 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946705474] [2021-06-06 23:27:36,980 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 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:27:37,034 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s) [2021-06-06 23:27:37,034 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 23:27:37,039 WARN L261 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 141 conjunts are in the unsatisfiable core [2021-06-06 23:27:37,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 23:27:39,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:39,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:39,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:39,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:39,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:39,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:39,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:39,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:39,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:39,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:39,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:39,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:39,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:39,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:39,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:39,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:39,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:39,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:39,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:39,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:27:40,423 WARN L205 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 328 [2021-06-06 23:27:40,424 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 23:27:40,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 21 select indices, 21 select index equivalence classes, 140 disjoint index pairs (out of 210 index pairs), introduced 21 new quantified variables, introduced 70 case distinctions, treesize of input 111 treesize of output 707 [2021-06-06 23:27:40,613 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 539 DAG size of output: 415 [2021-06-06 23:27:40,749 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 438 [2021-06-06 23:27:41,705 WARN L205 SmtUtils]: Spent 807.00 ms on a formula simplification. DAG size of input: 1683 DAG size of output: 1169 [2021-06-06 23:27:42,723 WARN L205 SmtUtils]: Spent 942.00 ms on a formula simplification. DAG size of input: 1700 DAG size of output: 1187 [2021-06-06 23:27:49,540 WARN L205 SmtUtils]: Spent 6.34 s on a formula simplification. DAG size of input: 5095 DAG size of output: 3744 [2021-06-06 23:27:56,403 WARN L205 SmtUtils]: Spent 6.65 s on a formula simplification. DAG size of input: 5109 DAG size of output: 3759 [2021-06-06 23:28:32,083 WARN L205 SmtUtils]: Spent 34.20 s on a formula simplification. DAG size of input: 17268 DAG size of output: 12662 [2021-06-06 23:29:08,792 WARN L205 SmtUtils]: Spent 36.24 s on a formula simplification. DAG size of input: 17282 DAG size of output: 12677 [2021-06-06 23:32:02,446 WARN L205 SmtUtils]: Spent 2.83 m on a formula simplification. DAG size of input: 57188 DAG size of output: 38512 [2021-06-06 23:35:03,995 WARN L205 SmtUtils]: Spent 3.00 m on a formula simplification. DAG size of input: 57202 DAG size of output: 38527 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown