/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array-hom.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-14 06:09:55,549 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-14 06:09:55,550 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-14 06:09:55,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-14 06:09:55,593 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-14 06:09:55,594 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-14 06:09:55,594 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-14 06:09:55,599 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-NewStatesSleep-NoLbe-Random42.epf [2021-06-14 06:09:55,631 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-14 06:09:55,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-14 06:09:55,632 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-14 06:09:55,632 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-14 06:09:55,632 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-14 06:09:55,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-14 06:09:55,633 INFO L138 SettingsManager]: * Use SBE=true [2021-06-14 06:09:55,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-14 06:09:55,633 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-14 06:09:55,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-14 06:09:55,633 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-14 06:09:55,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-14 06:09:55,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-14 06:09:55,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-14 06:09:55,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-14 06:09:55,634 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-14 06:09:55,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-14 06:09:55,634 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-14 06:09:55,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-14 06:09:55,634 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-14 06:09:55,634 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-14 06:09:55,634 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-14 06:09:55,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-14 06:09:55,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-14 06:09:55,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-14 06:09:55,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-14 06:09:55,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-14 06:09:55,635 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-14 06:09:55,635 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-14 06:09:55,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-14 06:09:55,636 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-14 06:09:55,636 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-14 06:09:55,636 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-14 06:09:55,636 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-14 06:09:55,636 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-14 06:09:55,636 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-14 06:09:55,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-14 06:09:55,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-14 06:09:55,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-14 06:09:55,890 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-14 06:09:55,891 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-14 06:09:55,891 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array-hom.wvr.bpl [2021-06-14 06:09:55,891 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array-hom.wvr.bpl' [2021-06-14 06:09:55,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-14 06:09:55,925 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-14 06:09:55,926 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-14 06:09:55,927 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-14 06:09:55,927 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-14 06:09:55,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 06:09:55" (1/1) ... [2021-06-14 06:09:55,941 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 06:09:55" (1/1) ... [2021-06-14 06:09:55,946 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-14 06:09:55,947 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-14 06:09:55,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-14 06:09:55,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-14 06:09:55,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 06:09:55" (1/1) ... [2021-06-14 06:09:55,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 06:09:55" (1/1) ... [2021-06-14 06:09:55,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 06:09:55" (1/1) ... [2021-06-14 06:09:55,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 06:09:55" (1/1) ... [2021-06-14 06:09:55,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 06:09:55" (1/1) ... [2021-06-14 06:09:55,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 06:09:55" (1/1) ... [2021-06-14 06:09:55,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 06:09:55" (1/1) ... [2021-06-14 06:09:55,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-14 06:09:55,963 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-14 06:09:55,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-14 06:09:55,964 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-14 06:09:55,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 06:09:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-14 06:09:56,031 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-14 06:09:56,031 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-14 06:09:56,031 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-14 06:09:56,031 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-14 06:09:56,031 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-14 06:09:56,032 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-14 06:09:56,032 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-14 06:09:56,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-14 06:09:56,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-14 06:09:56,033 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-14 06:09:56,033 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-14 06:09:56,033 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-14 06:09:56,033 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-14 06:09:56,182 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-14 06:09:56,182 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-14 06:09:56,183 INFO L202 PluginConnector]: Adding new model sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 06:09:56 BoogieIcfgContainer [2021-06-14 06:09:56,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-14 06:09:56,184 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-14 06:09:56,185 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-14 06:09:56,186 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-14 06:09:56,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 06:09:55" (1/2) ... [2021-06-14 06:09:56,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31745b4a and model type sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 06:09:56, skipping insertion in model container [2021-06-14 06:09:56,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 06:09:56" (2/2) ... [2021-06-14 06:09:56,188 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-array-hom.wvr.bpl [2021-06-14 06:09:56,191 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-14 06:09:56,191 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-14 06:09:56,191 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-14 06:09:56,192 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-14 06:09:56,214 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-14 06:09:56,227 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-14 06:09:56,302 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-14 06:09:56,302 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-14 06:09:56,302 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-14 06:09:56,302 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-14 06:09:56,302 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-14 06:09:56,303 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-14 06:09:56,303 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-14 06:09:56,303 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-14 06:09:56,340 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:09:56,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:09:56,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1911864892, now seen corresponding path program 1 times [2021-06-14 06:09:56,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:09:56,353 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359072250] [2021-06-14 06:09:56,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:09:56,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:09:56,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:09:56,541 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:09:56,541 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359072250] [2021-06-14 06:09:56,541 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359072250] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-14 06:09:56,541 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-14 06:09:56,542 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-14 06:09:56,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740015938] [2021-06-14 06:09:56,545 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-14 06:09:56,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:09:56,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-14 06:09:56,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-06-14 06:09:56,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:09:56,560 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:09:56,564 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 06:09:56,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:09:56,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:09:56,634 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-14 06:09:56,634 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:09:56,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:09:56,636 INFO L82 PathProgramCache]: Analyzing trace with hash 286975282, now seen corresponding path program 1 times [2021-06-14 06:09:56,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:09:56,636 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590723101] [2021-06-14 06:09:56,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:09:56,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:09:56,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-14 06:09:56,673 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:09:56,673 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590723101] [2021-06-14 06:09:56,673 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590723101] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-14 06:09:56,673 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-14 06:09:56,674 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-14 06:09:56,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781933220] [2021-06-14 06:09:56,675 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-14 06:09:56,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:09:56,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-14 06:09:56,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-14 06:09:56,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:09:56,675 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:09:56,675 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 06:09:56,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:09:56,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:09:56,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:09:56,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:09:56,714 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-14 06:09:56,714 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:09:56,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:09:56,715 INFO L82 PathProgramCache]: Analyzing trace with hash -1420874500, now seen corresponding path program 1 times [2021-06-14 06:09:56,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:09:56,715 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654947026] [2021-06-14 06:09:56,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:09:56,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:09:56,918 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:09:56,919 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:09:56,919 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654947026] [2021-06-14 06:09:56,919 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654947026] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:09:56,919 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534605438] [2021-06-14 06:09:56,919 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 [2021-06-14 06:09:56,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:09:56,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 18 conjunts are in the unsatisfiable core [2021-06-14 06:09:56,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 06:09:57,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-14 06:09:57,143 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 06:09:57,150 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 06:09:57,152 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 06:09:57,153 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:7 [2021-06-14 06:09:57,185 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:09:57,186 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [534605438] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:09:57,186 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 06:09:57,186 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-06-14 06:09:57,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797193891] [2021-06-14 06:09:57,187 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-14 06:09:57,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:09:57,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-14 06:09:57,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-06-14 06:09:57,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:09:57,189 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:09:57,189 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 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) [2021-06-14 06:09:57,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:09:57,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:09:57,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:09:57,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:09:57,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:09:57,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:09:57,536 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 06:09:57,538 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:09:57,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:09:57,538 INFO L82 PathProgramCache]: Analyzing trace with hash 778556826, now seen corresponding path program 2 times [2021-06-14 06:09:57,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:09:57,538 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979664082] [2021-06-14 06:09:57,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:09:57,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:09:57,589 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:09:57,589 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:09:57,589 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979664082] [2021-06-14 06:09:57,590 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979664082] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:09:57,590 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718121352] [2021-06-14 06:09:57,590 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 [2021-06-14 06:09:57,631 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-14 06:09:57,632 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 06:09:57,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-14 06:09:57,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 06:09:57,762 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:09:57,762 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718121352] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:09:57,762 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 06:09:57,762 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2021-06-14 06:09:57,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299516785] [2021-06-14 06:09:57,763 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-14 06:09:57,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:09:57,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-14 06:09:57,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-06-14 06:09:57,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:09:57,764 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:09:57,764 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 06:09:57,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:09:57,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:09:57,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:09:57,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:09:57,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:09:57,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:09:57,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:09:57,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 06:09:58,077 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 06:09:58,077 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:09:58,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:09:58,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1305674936, now seen corresponding path program 3 times [2021-06-14 06:09:58,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:09:58,078 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245817632] [2021-06-14 06:09:58,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:09:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:09:58,425 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:09:58,425 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:09:58,426 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245817632] [2021-06-14 06:09:58,432 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245817632] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:09:58,432 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957464721] [2021-06-14 06:09:58,433 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 [2021-06-14 06:09:58,467 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-14 06:09:58,467 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 06:09:58,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-14 06:09:58,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 06:09:58,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:09:58,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2021-06-14 06:09:58,623 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 06:09:58,628 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 06:09:58,629 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 06:09:58,629 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:32, output treesize:7 [2021-06-14 06:09:58,652 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:09:58,652 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957464721] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:09:58,652 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 06:09:58,652 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 15 [2021-06-14 06:09:58,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135981516] [2021-06-14 06:09:58,653 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-14 06:09:58,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:09:58,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-14 06:09:58,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2021-06-14 06:09:58,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:09:58,654 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:09:58,654 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.5) internal successors, (40), 15 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 06:09:58,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:09:58,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:09:58,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:09:58,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 06:09:58,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:09:58,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:09:58,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:09:58,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:09:58,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 06:09:58,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:09:59,188 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 06:09:59,189 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:09:59,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:09:59,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1528653940, now seen corresponding path program 4 times [2021-06-14 06:09:59,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:09:59,189 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559314772] [2021-06-14 06:09:59,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:09:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:09:59,267 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:09:59,267 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:09:59,267 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559314772] [2021-06-14 06:09:59,267 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559314772] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:09:59,268 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134428967] [2021-06-14 06:09:59,268 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 [2021-06-14 06:09:59,314 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-14 06:09:59,315 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 06:09:59,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-14 06:09:59,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 06:09:59,390 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:09:59,391 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [134428967] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:09:59,391 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 06:09:59,391 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2021-06-14 06:09:59,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476688296] [2021-06-14 06:09:59,391 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-14 06:09:59,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:09:59,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-14 06:09:59,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-06-14 06:09:59,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:09:59,392 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:09:59,392 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 13 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 06:09:59,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:09:59,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:09:59,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:09:59,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 06:09:59,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:09:59,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:09:59,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:09:59,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:09:59,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:09:59,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 06:09:59,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:09:59,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:09:59,758 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-06-14 06:09:59,758 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:09:59,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:09:59,759 INFO L82 PathProgramCache]: Analyzing trace with hash 594495762, now seen corresponding path program 5 times [2021-06-14 06:09:59,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:09:59,759 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564099961] [2021-06-14 06:09:59,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:09:59,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:09:59,825 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:09:59,826 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:09:59,826 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564099961] [2021-06-14 06:09:59,826 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564099961] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:09:59,826 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062155461] [2021-06-14 06:09:59,826 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 [2021-06-14 06:09:59,854 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-06-14 06:09:59,855 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 06:09:59,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-14 06:09:59,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 06:09:59,939 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:09:59,939 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062155461] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:09:59,939 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 06:09:59,940 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 14 [2021-06-14 06:09:59,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397641122] [2021-06-14 06:09:59,940 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-14 06:09:59,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:09:59,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-14 06:09:59,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-06-14 06:09:59,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:09:59,941 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:09:59,941 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 06:09:59,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:09:59,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:09:59,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:09:59,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 06:09:59,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:09:59,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:09:59,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:10:00,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:10:00,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:10:00,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:10:00,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 06:10:00,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:10:00,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:10:00,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-14 06:10:00,368 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 06:10:00,369 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:10:00,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:10:00,369 INFO L82 PathProgramCache]: Analyzing trace with hash 516651568, now seen corresponding path program 6 times [2021-06-14 06:10:00,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:10:00,369 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721381114] [2021-06-14 06:10:00,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:10:00,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:10:00,914 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:10:00,915 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:10:00,915 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721381114] [2021-06-14 06:10:00,915 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721381114] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:10:00,915 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732326328] [2021-06-14 06:10:00,915 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 [2021-06-14 06:10:00,944 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-06-14 06:10:00,945 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 06:10:00,945 WARN L261 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 45 conjunts are in the unsatisfiable core [2021-06-14 06:10:00,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 06:10:01,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:01,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:01,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:01,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:01,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:01,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:01,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 15 [2021-06-14 06:10:01,317 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 06:10:01,321 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 06:10:01,323 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 06:10:01,323 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:52, output treesize:7 [2021-06-14 06:10:01,361 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:10:01,361 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732326328] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:10:01,361 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 06:10:01,361 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 26 [2021-06-14 06:10:01,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119269554] [2021-06-14 06:10:01,361 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-14 06:10:01,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:10:01,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-14 06:10:01,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=615, Unknown=0, NotChecked=0, Total=702 [2021-06-14 06:10:01,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:10:01,362 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:10:01,362 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.111111111111111) internal successors, (57), 26 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) [2021-06-14 06:10:01,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:10:01,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:10:01,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:10:01,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 06:10:01,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:10:01,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:10:01,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-14 06:10:01,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:10:02,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:10:02,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:10:02,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:10:02,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 06:10:02,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:10:02,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:10:02,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-14 06:10:02,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:10:02,844 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 06:10:02,845 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:10:02,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:10:02,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1612584940, now seen corresponding path program 7 times [2021-06-14 06:10:02,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:10:02,845 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128444818] [2021-06-14 06:10:02,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:10:02,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:10:03,424 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 4 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:10:03,425 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:10:03,425 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128444818] [2021-06-14 06:10:03,425 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128444818] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:10:03,425 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642973402] [2021-06-14 06:10:03,425 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 [2021-06-14 06:10:03,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:10:03,458 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 50 conjunts are in the unsatisfiable core [2021-06-14 06:10:03,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 06:10:03,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:03,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:03,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:03,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:03,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:03,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:03,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:03,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:03,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:03,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:03,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 17 [2021-06-14 06:10:03,863 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 06:10:03,869 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 06:10:03,872 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 06:10:03,872 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:62, output treesize:7 [2021-06-14 06:10:03,901 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:10:03,902 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1642973402] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:10:03,902 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 06:10:03,902 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15] total 28 [2021-06-14 06:10:03,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582589544] [2021-06-14 06:10:03,904 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-14 06:10:03,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:10:03,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-14 06:10:03,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=711, Unknown=0, NotChecked=0, Total=812 [2021-06-14 06:10:03,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:10:03,905 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:10:03,905 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.2413793103448274) internal successors, (65), 28 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 06:10:03,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:10:03,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:10:03,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:10:03,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 06:10:03,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:10:03,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:10:03,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-14 06:10:03,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:10:03,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:10:05,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:10:05,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:10:05,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:10:05,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 06:10:05,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:10:05,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:10:05,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-14 06:10:05,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:10:05,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:10:05,399 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-06-14 06:10:05,399 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:10:05,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:10:05,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1754728536, now seen corresponding path program 8 times [2021-06-14 06:10:05,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:10:05,400 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017534209] [2021-06-14 06:10:05,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:10:05,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:10:06,027 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:10:06,027 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:10:06,027 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017534209] [2021-06-14 06:10:06,027 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017534209] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:10:06,027 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315314345] [2021-06-14 06:10:06,027 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 [2021-06-14 06:10:06,059 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-14 06:10:06,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 06:10:06,060 WARN L261 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 64 conjunts are in the unsatisfiable core [2021-06-14 06:10:06,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 06:10:06,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:06,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:06,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:06,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:06,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:06,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:06,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:06,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:06,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:06,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:06,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:06,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:06,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:06,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:06,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:06,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 19 [2021-06-14 06:10:06,626 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 06:10:06,634 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 06:10:06,635 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 06:10:06,635 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:85, output treesize:21 [2021-06-14 06:10:06,709 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:10:06,709 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315314345] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:10:06,709 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 06:10:06,710 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 20] total 35 [2021-06-14 06:10:06,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857615627] [2021-06-14 06:10:06,711 INFO L462 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-06-14 06:10:06,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:10:06,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-06-14 06:10:06,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=1081, Unknown=0, NotChecked=0, Total=1260 [2021-06-14 06:10:06,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:10:06,713 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:10:06,713 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 2.0277777777777777) internal successors, (73), 35 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 06:10:06,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:10:06,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:10:06,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:10:06,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 06:10:06,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:10:06,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:10:06,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-14 06:10:06,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:10:06,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:10:06,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:10:08,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:10:08,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:10:08,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:10:08,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 06:10:08,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:10:08,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:10:08,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-14 06:10:08,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:10:08,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:10:08,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-14 06:10:08,424 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 06:10:08,425 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:10:08,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:10:08,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1935350116, now seen corresponding path program 9 times [2021-06-14 06:10:08,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:10:08,425 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099291002] [2021-06-14 06:10:08,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:10:08,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:10:09,140 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 16 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:10:09,140 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:10:09,140 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099291002] [2021-06-14 06:10:09,140 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099291002] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:10:09,140 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357398212] [2021-06-14 06:10:09,146 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 [2021-06-14 06:10:09,180 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-06-14 06:10:09,181 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 06:10:09,182 WARN L261 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 72 conjunts are in the unsatisfiable core [2021-06-14 06:10:09,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 06:10:09,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:09,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:09,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:09,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:09,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:09,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:09,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:09,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:09,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:09,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:09,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:09,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:09,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:09,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:09,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:09,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:09,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:09,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:09,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:09,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:09,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:09,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 21 [2021-06-14 06:10:09,901 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 06:10:09,908 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 06:10:09,912 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 06:10:09,913 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:95, output treesize:21 [2021-06-14 06:10:09,979 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:10:09,979 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [357398212] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:10:09,979 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 06:10:09,979 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 22] total 39 [2021-06-14 06:10:09,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577673537] [2021-06-14 06:10:09,979 INFO L462 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-06-14 06:10:09,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:10:09,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-06-14 06:10:09,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=1348, Unknown=0, NotChecked=0, Total=1560 [2021-06-14 06:10:09,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:10:09,980 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:10:09,980 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 40 states, 40 states have (on average 2.025) internal successors, (81), 39 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 06:10:09,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:10:09,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:10:09,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:10:09,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 06:10:09,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:10:09,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:10:09,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-14 06:10:09,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:10:09,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:10:09,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-14 06:10:09,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:10:11,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:10:11,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:10:11,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:10:11,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 06:10:11,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:10:11,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:10:11,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-14 06:10:11,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:10:11,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:10:11,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-14 06:10:11,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-14 06:10:12,063 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 06:10:12,064 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:10:12,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:10:12,064 INFO L82 PathProgramCache]: Analyzing trace with hash 186875168, now seen corresponding path program 10 times [2021-06-14 06:10:12,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:10:12,064 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793127023] [2021-06-14 06:10:12,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:10:12,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:10:12,892 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 11 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:10:12,893 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:10:12,893 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793127023] [2021-06-14 06:10:12,893 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793127023] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:10:12,893 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022587260] [2021-06-14 06:10:12,893 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 [2021-06-14 06:10:12,926 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-14 06:10:12,926 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 06:10:12,927 WARN L261 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 74 conjunts are in the unsatisfiable core [2021-06-14 06:10:12,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 06:10:13,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:13,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:13,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:13,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:13,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:13,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:13,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:13,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:13,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:13,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:13,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:13,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:13,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:13,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:13,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:13,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:13,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:13,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:13,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:13,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:13,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:13,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:13,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:13,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:13,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:13,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:13,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:13,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:13,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 23 [2021-06-14 06:10:13,680 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 06:10:13,684 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 06:10:13,685 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 06:10:13,685 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:92, output treesize:7 [2021-06-14 06:10:13,710 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:10:13,711 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022587260] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:10:13,711 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 06:10:13,711 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 21] total 40 [2021-06-14 06:10:13,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933309004] [2021-06-14 06:10:13,711 INFO L462 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-06-14 06:10:13,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:10:13,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-06-14 06:10:13,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=1472, Unknown=0, NotChecked=0, Total=1640 [2021-06-14 06:10:13,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:10:13,712 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:10:13,712 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 41 states, 41 states have (on average 2.1707317073170733) internal successors, (89), 40 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 06:10:13,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:10:13,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:10:13,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:10:13,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 06:10:13,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:10:13,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:10:13,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-14 06:10:13,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:10:13,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:10:13,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-14 06:10:13,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-14 06:10:13,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:10:15,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:10:15,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:10:15,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:10:15,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 06:10:15,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:10:15,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:10:15,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-14 06:10:15,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:10:15,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:10:15,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-14 06:10:15,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-14 06:10:15,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-14 06:10:16,200 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-06-14 06:10:16,201 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:10:16,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:10:16,201 INFO L82 PathProgramCache]: Analyzing trace with hash -1636752676, now seen corresponding path program 11 times [2021-06-14 06:10:16,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:10:16,201 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859672662] [2021-06-14 06:10:16,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:10:16,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:10:17,201 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 36 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:10:17,201 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:10:17,201 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859672662] [2021-06-14 06:10:17,202 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859672662] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:10:17,202 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1128051608] [2021-06-14 06:10:17,202 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 [2021-06-14 06:10:17,240 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2021-06-14 06:10:17,241 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 06:10:17,242 WARN L261 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 82 conjunts are in the unsatisfiable core [2021-06-14 06:10:17,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 06:10:18,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:18,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 25 [2021-06-14 06:10:18,169 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 06:10:18,174 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 06:10:18,175 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 06:10:18,175 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:102, output treesize:7 [2021-06-14 06:10:18,201 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:10:18,201 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1128051608] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:10:18,201 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 06:10:18,201 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 23] total 44 [2021-06-14 06:10:18,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847887082] [2021-06-14 06:10:18,202 INFO L462 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-06-14 06:10:18,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:10:18,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-06-14 06:10:18,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=1773, Unknown=0, NotChecked=0, Total=1980 [2021-06-14 06:10:18,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:10:18,202 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:10:18,203 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 45 states, 45 states have (on average 2.1555555555555554) internal successors, (97), 44 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 06:10:18,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:10:18,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:10:18,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:10:18,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 06:10:18,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:10:18,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:10:18,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-14 06:10:18,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:10:18,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:10:18,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-14 06:10:18,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-14 06:10:18,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-14 06:10:18,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:10:20,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:10:20,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:10:20,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:10:20,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 06:10:20,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:10:20,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:10:20,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-14 06:10:20,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:10:20,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:10:20,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-14 06:10:20,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-14 06:10:20,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-14 06:10:20,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-14 06:10:20,995 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-06-14 06:10:20,995 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:10:20,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:10:20,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1433602712, now seen corresponding path program 12 times [2021-06-14 06:10:20,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:10:20,996 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88994348] [2021-06-14 06:10:20,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:10:21,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:10:22,108 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 36 proven. 164 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:10:22,108 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:10:22,108 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88994348] [2021-06-14 06:10:22,109 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88994348] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:10:22,109 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722989540] [2021-06-14 06:10:22,109 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 [2021-06-14 06:10:22,162 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2021-06-14 06:10:22,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 06:10:22,163 WARN L261 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 97 conjunts are in the unsatisfiable core [2021-06-14 06:10:22,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 06:10:23,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:23,798 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 06:10:23,798 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 103 treesize of output 57 [2021-06-14 06:10:23,805 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-06-14 06:10:23,818 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 06:10:23,826 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 06:10:23,826 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:128, output treesize:30 [2021-06-14 06:10:23,931 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:10:23,931 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722989540] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:10:23,931 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 06:10:23,931 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 29] total 51 [2021-06-14 06:10:23,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886347951] [2021-06-14 06:10:23,931 INFO L462 AbstractCegarLoop]: Interpolant automaton has 52 states [2021-06-14 06:10:23,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:10:23,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-06-14 06:10:23,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=226, Invalid=2426, Unknown=0, NotChecked=0, Total=2652 [2021-06-14 06:10:23,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:10:23,932 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:10:23,933 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 52 states, 52 states have (on average 2.0) internal successors, (104), 51 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 06:10:23,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:10:23,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:10:23,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:10:23,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 06:10:23,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:10:23,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:10:23,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-14 06:10:23,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:10:23,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:10:23,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-14 06:10:23,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-14 06:10:23,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-14 06:10:23,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-14 06:10:23,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:10:26,700 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2021-06-14 06:10:26,929 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 109 [2021-06-14 06:10:27,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:10:27,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:10:27,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:10:27,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 06:10:27,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:10:27,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:10:27,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-14 06:10:27,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:10:27,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:10:27,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-14 06:10:27,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-14 06:10:27,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-14 06:10:27,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-14 06:10:27,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-14 06:10:28,194 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-06-14 06:10:28,194 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:10:28,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:10:28,194 INFO L82 PathProgramCache]: Analyzing trace with hash 14169172, now seen corresponding path program 13 times [2021-06-14 06:10:28,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:10:28,194 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095011830] [2021-06-14 06:10:28,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:10:28,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:10:29,390 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 38 proven. 204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:10:29,390 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:10:29,390 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095011830] [2021-06-14 06:10:29,391 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095011830] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:10:29,391 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20212494] [2021-06-14 06:10:29,391 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 [2021-06-14 06:10:29,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:10:29,435 WARN L261 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 98 conjunts are in the unsatisfiable core [2021-06-14 06:10:29,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 06:10:30,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:30,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 55 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 29 [2021-06-14 06:10:30,719 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 06:10:30,723 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 06:10:30,724 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 06:10:30,724 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:122, output treesize:7 [2021-06-14 06:10:30,753 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:10:30,753 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20212494] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:10:30,753 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 06:10:30,753 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 27] total 52 [2021-06-14 06:10:30,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840077390] [2021-06-14 06:10:30,754 INFO L462 AbstractCegarLoop]: Interpolant automaton has 53 states [2021-06-14 06:10:30,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:10:30,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-06-14 06:10:30,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=264, Invalid=2492, Unknown=0, NotChecked=0, Total=2756 [2021-06-14 06:10:30,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:10:30,755 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:10:30,755 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 53 states, 53 states have (on average 2.1320754716981134) internal successors, (113), 52 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 06:10:30,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:10:30,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:10:30,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:10:30,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 06:10:30,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:10:30,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:10:30,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-14 06:10:30,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:10:30,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:10:30,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-14 06:10:30,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-14 06:10:30,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-14 06:10:30,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-14 06:10:30,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-06-14 06:10:30,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:10:34,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:10:34,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:10:34,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:10:34,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 06:10:34,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:10:34,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:10:34,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-14 06:10:34,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:10:34,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:10:34,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-14 06:10:34,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-14 06:10:34,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-14 06:10:34,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-14 06:10:34,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-14 06:10:34,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-14 06:10:34,589 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 06:10:34,589 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:10:34,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:10:34,590 INFO L82 PathProgramCache]: Analyzing trace with hash -640704496, now seen corresponding path program 14 times [2021-06-14 06:10:34,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:10:34,590 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600800648] [2021-06-14 06:10:34,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:10:34,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:10:35,854 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 42 proven. 246 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:10:35,854 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:10:35,854 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600800648] [2021-06-14 06:10:35,854 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600800648] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:10:35,854 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545860929] [2021-06-14 06:10:35,854 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 [2021-06-14 06:10:35,916 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-14 06:10:35,916 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 06:10:35,918 WARN L261 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 110 conjunts are in the unsatisfiable core [2021-06-14 06:10:35,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 06:10:37,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:37,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 66 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 31 [2021-06-14 06:10:37,382 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 06:10:37,389 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 06:10:37,390 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 06:10:37,390 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:140, output treesize:18 [2021-06-14 06:10:37,469 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:10:37,469 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545860929] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:10:37,469 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 06:10:37,469 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 57 [2021-06-14 06:10:37,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020280124] [2021-06-14 06:10:37,469 INFO L462 AbstractCegarLoop]: Interpolant automaton has 58 states [2021-06-14 06:10:37,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:10:37,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-06-14 06:10:37,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=415, Invalid=2891, Unknown=0, NotChecked=0, Total=3306 [2021-06-14 06:10:37,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:10:37,470 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:10:37,471 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 58 states, 58 states have (on average 2.0689655172413794) internal successors, (120), 57 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 06:10:37,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:10:37,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:10:37,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:10:37,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 06:10:37,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:10:37,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:10:37,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-14 06:10:37,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:10:37,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:10:37,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-14 06:10:37,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-14 06:10:37,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-14 06:10:37,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-14 06:10:37,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-06-14 06:10:37,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-06-14 06:10:37,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:10:41,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:10:41,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:10:41,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:10:41,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 06:10:41,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:10:41,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:10:41,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-14 06:10:41,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:10:41,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:10:41,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-14 06:10:41,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-14 06:10:41,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-14 06:10:41,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-14 06:10:41,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-14 06:10:41,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-14 06:10:41,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-14 06:10:41,550 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 06:10:41,550 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:10:41,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:10:41,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1107840460, now seen corresponding path program 15 times [2021-06-14 06:10:41,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:10:41,550 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019579128] [2021-06-14 06:10:41,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:10:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:10:42,924 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 100 proven. 238 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:10:42,924 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:10:42,924 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019579128] [2021-06-14 06:10:42,924 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019579128] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:10:42,924 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670727820] [2021-06-14 06:10:42,924 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 [2021-06-14 06:10:42,973 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2021-06-14 06:10:42,974 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 06:10:42,975 WARN L261 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 120 conjunts are in the unsatisfiable core [2021-06-14 06:10:42,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 06:10:44,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:44,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 13 select indices, 13 select index equivalence classes, 78 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 33 [2021-06-14 06:10:44,794 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 06:10:44,802 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 06:10:44,803 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 06:10:44,803 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:155, output treesize:21 [2021-06-14 06:10:44,889 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 0 proven. 338 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:10:44,889 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670727820] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:10:44,889 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 06:10:44,889 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 34] total 63 [2021-06-14 06:10:44,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641260113] [2021-06-14 06:10:44,890 INFO L462 AbstractCegarLoop]: Interpolant automaton has 64 states [2021-06-14 06:10:44,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:10:44,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-06-14 06:10:44,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=517, Invalid=3515, Unknown=0, NotChecked=0, Total=4032 [2021-06-14 06:10:44,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:10:44,891 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:10:44,891 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 64 states, 64 states have (on average 2.015625) internal successors, (129), 63 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 06:10:44,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:10:44,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:10:44,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:10:44,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 06:10:44,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:10:44,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:10:44,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-14 06:10:44,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:10:44,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:10:44,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-14 06:10:44,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-14 06:10:44,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-14 06:10:44,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-14 06:10:44,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-06-14 06:10:44,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-06-14 06:10:44,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-06-14 06:10:44,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:10:48,020 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 99 [2021-06-14 06:10:49,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:10:49,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:10:49,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:10:49,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 06:10:49,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:10:49,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:10:49,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-14 06:10:49,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:10:49,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:10:49,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-14 06:10:49,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-14 06:10:49,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-14 06:10:49,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-14 06:10:49,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-14 06:10:49,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-14 06:10:49,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-14 06:10:49,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-06-14 06:10:49,508 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 06:10:49,508 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:10:49,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:10:49,508 INFO L82 PathProgramCache]: Analyzing trace with hash -2085536376, now seen corresponding path program 16 times [2021-06-14 06:10:49,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:10:49,508 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332414618] [2021-06-14 06:10:49,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:10:49,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:10:50,983 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 121 proven. 271 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:10:50,983 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:10:50,983 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332414618] [2021-06-14 06:10:50,983 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332414618] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:10:50,983 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521997489] [2021-06-14 06:10:50,983 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 [2021-06-14 06:10:51,029 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-14 06:10:51,029 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 06:10:51,030 WARN L261 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 122 conjunts are in the unsatisfiable core [2021-06-14 06:10:51,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 06:10:53,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:10:53,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 35 [2021-06-14 06:10:53,127 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 06:10:53,131 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 06:10:53,132 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 06:10:53,132 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:152, output treesize:7 [2021-06-14 06:10:53,165 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:10:53,165 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521997489] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:10:53,165 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 06:10:53,165 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 33] total 64 [2021-06-14 06:10:53,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750988193] [2021-06-14 06:10:53,165 INFO L462 AbstractCegarLoop]: Interpolant automaton has 65 states [2021-06-14 06:10:53,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:10:53,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2021-06-14 06:10:53,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=412, Invalid=3748, Unknown=0, NotChecked=0, Total=4160 [2021-06-14 06:10:53,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:10:53,166 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:10:53,167 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 65 states, 65 states have (on average 2.1076923076923078) internal successors, (137), 64 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 06:10:53,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:10:53,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:10:53,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:10:53,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 06:10:53,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:10:53,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:10:53,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-14 06:10:53,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:10:53,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:10:53,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-14 06:10:53,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-14 06:10:53,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-14 06:10:53,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-14 06:10:53,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-06-14 06:10:53,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-06-14 06:10:53,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-06-14 06:10:53,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-06-14 06:10:53,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:10:58,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:10:58,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:10:58,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:10:58,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 06:10:58,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:10:58,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:10:58,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-14 06:10:58,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:10:58,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:10:58,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-14 06:10:58,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-14 06:10:58,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-14 06:10:58,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-14 06:10:58,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-14 06:10:58,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-14 06:10:58,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-14 06:10:58,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-06-14 06:10:58,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-06-14 06:10:58,226 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-06-14 06:10:58,226 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:10:58,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:10:58,226 INFO L82 PathProgramCache]: Analyzing trace with hash -1854312636, now seen corresponding path program 17 times [2021-06-14 06:10:58,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:10:58,226 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848760922] [2021-06-14 06:10:58,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:10:58,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:10:59,951 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 144 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:10:59,951 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:10:59,951 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848760922] [2021-06-14 06:10:59,951 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848760922] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:10:59,951 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259327389] [2021-06-14 06:10:59,951 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 [2021-06-14 06:11:00,006 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2021-06-14 06:11:00,007 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 06:11:00,009 WARN L261 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 130 conjunts are in the unsatisfiable core [2021-06-14 06:11:00,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 06:11:02,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:11:02,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 15 select indices, 15 select index equivalence classes, 105 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 37 [2021-06-14 06:11:02,291 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 06:11:02,295 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 06:11:02,296 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 06:11:02,296 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:162, output treesize:7 [2021-06-14 06:11:02,329 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:11:02,329 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259327389] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:11:02,329 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 06:11:02,329 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 35] total 68 [2021-06-14 06:11:02,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101047212] [2021-06-14 06:11:02,329 INFO L462 AbstractCegarLoop]: Interpolant automaton has 69 states [2021-06-14 06:11:02,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:11:02,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2021-06-14 06:11:02,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=461, Invalid=4231, Unknown=0, NotChecked=0, Total=4692 [2021-06-14 06:11:02,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:11:02,330 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:11:02,331 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 69 states, 69 states have (on average 2.101449275362319) internal successors, (145), 68 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 06:11:02,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:11:02,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:11:02,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:11:02,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 06:11:02,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:11:02,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:11:02,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-14 06:11:02,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:11:02,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:11:02,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-14 06:11:02,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-14 06:11:02,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-14 06:11:02,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-14 06:11:02,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-06-14 06:11:02,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-06-14 06:11:02,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-06-14 06:11:02,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-06-14 06:11:02,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2021-06-14 06:11:02,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:11:07,122 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 112 [2021-06-14 06:11:08,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 06:11:08,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:11:08,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:11:08,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 06:11:08,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:11:08,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:11:08,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-14 06:11:08,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:11:08,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:11:08,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-14 06:11:08,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-14 06:11:08,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-14 06:11:08,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-14 06:11:08,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-14 06:11:08,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-14 06:11:08,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-14 06:11:08,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-06-14 06:11:08,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-06-14 06:11:08,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-06-14 06:11:08,812 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-06-14 06:11:08,812 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:11:08,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:11:08,812 INFO L82 PathProgramCache]: Analyzing trace with hash -963648768, now seen corresponding path program 18 times [2021-06-14 06:11:08,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:11:08,812 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020473190] [2021-06-14 06:11:08,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:11:08,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:11:10,746 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 169 proven. 343 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:11:10,746 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:11:10,746 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020473190] [2021-06-14 06:11:10,746 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020473190] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:11:10,746 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521405388] [2021-06-14 06:11:10,746 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 [2021-06-14 06:11:10,804 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s) [2021-06-14 06:11:10,804 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 06:11:10,806 WARN L261 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 140 conjunts are in the unsatisfiable core [2021-06-14 06:11:10,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 06:13:11,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:11,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:13:12,737 INFO L244 Elim1Store]: Index analysis took 1510 ms [2021-06-14 06:13:18,052 WARN L205 SmtUtils]: Spent 5.31 s on a formula simplification that was a NOOP. DAG size: 476 [2021-06-14 06:13:18,052 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 06:13:18,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 20 select indices, 20 select index equivalence classes, 84 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 106 case distinctions, treesize of input 159 treesize of output 1237 [2021-06-14 06:13:18,238 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 444 DAG size of output: 406 [2021-06-14 06:13:18,376 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 462 DAG size of output: 425 [2021-06-14 06:13:19,613 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 1991 DAG size of output: 1234 [2021-06-14 06:13:20,841 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 2030 DAG size of output: 1273 [2021-06-14 06:13:39,243 WARN L205 SmtUtils]: Spent 17.46 s on a formula simplification. DAG size of input: 7832 DAG size of output: 6605 [2021-06-14 06:13:58,493 WARN L205 SmtUtils]: Spent 18.87 s on a formula simplification. DAG size of input: 7856 DAG size of output: 6630 [2021-06-14 06:16:51,427 WARN L205 SmtUtils]: Spent 2.77 m on a formula simplification. DAG size of input: 46385 DAG size of output: 30733 [2021-06-14 06:19:48,678 WARN L205 SmtUtils]: Spent 2.93 m on a formula simplification. DAG size of input: 46424 DAG size of output: 30773 [2021-06-14 06:20:05,487 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 99 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown