/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 16:34:09,739 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 16:34:09,740 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 16:34:09,767 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 16:34:09,784 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 16:34:09,786 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 16:34:09,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 16:34:09,788 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 16:34:09,789 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 16:34:09,789 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 16:34:09,792 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 16:34:09,797 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 16:34:09,798 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 16:34:09,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 16:34:09,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 16:34:09,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 16:34:09,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-14 16:34:09,812 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-14 16:34:09,812 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-14 16:34:09,813 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-14 16:34:09,814 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-14 16:34:09,814 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2021-07-14 16:34:09,838 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-14 16:34:09,839 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-14 16:34:09,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-14 16:34:09,843 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf [2021-07-14 16:34:09,876 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 16:34:09,876 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 16:34:09,876 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 16:34:09,876 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 16:34:09,878 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 16:34:09,878 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 16:34:09,878 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 16:34:09,879 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 16:34:09,879 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 16:34:09,879 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 16:34:09,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 16:34:09,880 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 16:34:09,880 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 16:34:09,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 16:34:09,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 16:34:09,880 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 16:34:09,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 16:34:09,880 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 16:34:09,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 16:34:09,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 16:34:09,880 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 16:34:09,881 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 16:34:09,881 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 16:34:09,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 16:34:09,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 16:34:09,890 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 16:34:09,890 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 16:34:09,890 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 16:34:09,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 16:34:09,891 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 16:34:09,891 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 16:34:09,891 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 16:34:09,891 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-14 16:34:09,891 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 16:34:10,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 16:34:10,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 16:34:10,149 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 16:34:10,150 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 16:34:10,151 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 16:34:10,151 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product-array.wvr.bpl [2021-07-14 16:34:10,152 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product-array.wvr.bpl' [2021-07-14 16:34:10,186 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 16:34:10,187 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 16:34:10,189 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 16:34:10,189 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 16:34:10,189 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 16:34:10,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:34:10" (1/1) ... [2021-07-14 16:34:10,209 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:34:10" (1/1) ... [2021-07-14 16:34:10,214 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 16:34:10,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 16:34:10,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 16:34:10,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 16:34:10,227 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:34:10" (1/1) ... [2021-07-14 16:34:10,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:34:10" (1/1) ... [2021-07-14 16:34:10,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:34:10" (1/1) ... [2021-07-14 16:34:10,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:34:10" (1/1) ... [2021-07-14 16:34:10,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:34:10" (1/1) ... [2021-07-14 16:34:10,233 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:34:10" (1/1) ... [2021-07-14 16:34:10,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:34:10" (1/1) ... [2021-07-14 16:34:10,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 16:34:10,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 16:34:10,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 16:34:10,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 16:34:10,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:34:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 16:34:10,288 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 16:34:10,289 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 16:34:10,289 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 16:34:10,289 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 16:34:10,289 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 16:34:10,289 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 16:34:10,289 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 16:34:10,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 16:34:10,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 16:34:10,289 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 16:34:10,289 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 16:34:10,289 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 16:34:10,290 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 16:34:10,431 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 16:34:10,431 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 16:34:10,433 INFO L202 PluginConnector]: Adding new model dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:34:10 BoogieIcfgContainer [2021-07-14 16:34:10,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 16:34:10,434 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 16:34:10,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 16:34:10,436 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 16:34:10,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:34:10" (1/2) ... [2021-07-14 16:34:10,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77423048 and model type dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 04:34:10, skipping insertion in model container [2021-07-14 16:34:10,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:34:10" (2/2) ... [2021-07-14 16:34:10,438 INFO L111 eAbstractionObserver]: Analyzing ICFG dot-product-array.wvr.bpl [2021-07-14 16:34:10,441 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 16:34:10,441 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 16:34:10,442 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 16:34:10,442 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 16:34:10,482 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-14 16:34:10,497 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-14 16:34:10,553 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 16:34:10,553 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 16:34:10,553 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 16:34:10,553 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 16:34:10,553 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 16:34:10,553 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 16:34:10,553 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 16:34:10,553 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 16:34:10,667 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:34:10,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:34:10,671 INFO L82 PathProgramCache]: Analyzing trace with hash -574795467, now seen corresponding path program 1 times [2021-07-14 16:34:10,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:34:10,677 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659197948] [2021-07-14 16:34:10,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:34:10,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:34:10,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:34:10,800 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:34:10,800 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659197948] [2021-07-14 16:34:10,800 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659197948] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 16:34:10,801 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 16:34:10,801 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-14 16:34:10,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094240524] [2021-07-14 16:34:10,804 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 16:34:10,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:34:10,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 16:34:10,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 16:34:10,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:34:10,814 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:34:10,815 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:34:10,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:34:10,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:34:10,843 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 16:34:10,843 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:34:10,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:34:10,843 INFO L82 PathProgramCache]: Analyzing trace with hash 1851604627, now seen corresponding path program 1 times [2021-07-14 16:34:10,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:34:10,844 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748909119] [2021-07-14 16:34:10,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:34:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:34:10,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 16:34:10,880 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:34:10,881 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748909119] [2021-07-14 16:34:10,881 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748909119] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 16:34:10,881 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 16:34:10,881 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-14 16:34:10,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373630322] [2021-07-14 16:34:10,882 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-14 16:34:10,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:34:10,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-14 16:34:10,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-14 16:34:10,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:34:10,883 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:34:10,883 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:34:10,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:34:10,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:34:10,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:34:10,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 16:34:10,916 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-14 16:34:10,916 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:34:10,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:34:10,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1712675697, now seen corresponding path program 1 times [2021-07-14 16:34:10,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:34:10,917 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444266859] [2021-07-14 16:34:10,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:34:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:34:11,174 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:34:11,174 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:34:11,174 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444266859] [2021-07-14 16:34:11,174 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444266859] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:34:11,175 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025731965] [2021-07-14 16:34:11,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:34:11,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:34:11,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-14 16:34:11,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:34:11,468 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:34:11,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-07-14 16:34:11,475 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-14 16:34:11,481 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:34:11,483 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:34:11,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-07-14 16:34:11,486 INFO L550 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-14 16:34:11,492 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:34:11,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7 [2021-07-14 16:34:11,496 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 16:34:11,500 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:34:11,502 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-14 16:34:11,502 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:29, output treesize:3 [2021-07-14 16:34:11,531 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:34:11,531 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025731965] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:34:11,531 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:34:11,531 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-07-14 16:34:11,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679922584] [2021-07-14 16:34:11,531 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-14 16:34:11,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:34:11,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-14 16:34:11,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-07-14 16:34:11,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:34:11,532 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:34:11,533 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:34:11,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:34:11,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 16:34:11,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:34:11,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:34:11,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 16:34:11,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:34:11,848 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:34:11,849 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:34:11,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:34:11,850 INFO L82 PathProgramCache]: Analyzing trace with hash -1608291889, now seen corresponding path program 2 times [2021-07-14 16:34:11,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:34:11,850 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339601414] [2021-07-14 16:34:11,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:34:11,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:34:11,902 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:34:11,903 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:34:11,903 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339601414] [2021-07-14 16:34:11,903 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339601414] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:34:11,903 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119869910] [2021-07-14 16:34:11,903 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:34:11,949 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 16:34:11,949 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:34:11,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-14 16:34:11,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:34:12,075 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:34:12,076 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [119869910] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:34:12,076 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:34:12,076 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-07-14 16:34:12,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078375971] [2021-07-14 16:34:12,077 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-14 16:34:12,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:34:12,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-14 16:34:12,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-07-14 16:34:12,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:34:12,080 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:34:12,080 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:34:12,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:34:12,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 16:34:12,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:34:12,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:34:12,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:34:12,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 16:34:12,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:34:12,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 16:34:12,434 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:34:12,435 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:34:12,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:34:12,435 INFO L82 PathProgramCache]: Analyzing trace with hash -534145269, now seen corresponding path program 1 times [2021-07-14 16:34:12,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:34:12,436 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822437248] [2021-07-14 16:34:12,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:34:12,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:34:12,485 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 16:34:12,485 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:34:12,485 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822437248] [2021-07-14 16:34:12,486 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822437248] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:34:12,486 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585200335] [2021-07-14 16:34:12,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:34:12,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:34:12,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-14 16:34:12,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:34:12,628 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 16:34:12,628 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585200335] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:34:12,628 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:34:12,628 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-07-14 16:34:12,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140146967] [2021-07-14 16:34:12,629 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-14 16:34:12,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:34:12,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-14 16:34:12,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-07-14 16:34:12,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:34:12,629 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:34:12,629 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:34:12,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:34:12,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 16:34:12,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:34:12,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 16:34:12,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:34:12,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:34:12,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 16:34:12,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:34:12,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 16:34:12,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:34:12,936 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:34:12,937 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:34:12,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:34:12,937 INFO L82 PathProgramCache]: Analyzing trace with hash -612440343, now seen corresponding path program 2 times [2021-07-14 16:34:12,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:34:12,938 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805831846] [2021-07-14 16:34:12,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:34:12,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:34:13,259 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:34:13,260 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:34:13,260 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805831846] [2021-07-14 16:34:13,260 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805831846] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:34:13,260 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285311355] [2021-07-14 16:34:13,260 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:34:13,308 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 16:34:13,309 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:34:13,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 32 conjunts are in the unsatisfiable core [2021-07-14 16:34:13,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:34:13,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:34:13,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:34:13,584 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:34:13,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 49 [2021-07-14 16:34:13,589 INFO L550 ElimStorePlain]: Start of recursive call 2: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-14 16:34:13,595 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:34:13,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:34:13,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:34:13,604 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:34:13,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 37 [2021-07-14 16:34:13,608 INFO L550 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-14 16:34:13,614 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:34:13,628 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:34:13,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 49 [2021-07-14 16:34:13,660 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 16:34:13,718 INFO L628 ElimStorePlain]: treesize reduction 68, result has 33.3 percent of original size [2021-07-14 16:34:13,722 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-14 16:34:13,722 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:67, output treesize:3 [2021-07-14 16:34:13,743 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:34:13,743 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285311355] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:34:13,743 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:34:13,744 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 22 [2021-07-14 16:34:13,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588479506] [2021-07-14 16:34:13,744 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-07-14 16:34:13,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:34:13,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-07-14 16:34:13,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2021-07-14 16:34:13,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:34:13,745 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:34:13,745 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.3636363636363638) internal successors, (52), 22 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:34:13,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:34:13,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 16:34:13,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:34:13,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 16:34:13,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:34:13,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:34:14,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:34:14,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 16:34:14,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:34:14,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 16:34:14,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:34:14,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 16:34:14,783 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-07-14 16:34:14,783 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:34:14,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:34:14,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1455404871, now seen corresponding path program 3 times [2021-07-14 16:34:14,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:34:14,784 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91754217] [2021-07-14 16:34:14,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:34:14,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:34:14,873 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:34:14,873 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:34:14,873 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91754217] [2021-07-14 16:34:14,873 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91754217] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:34:14,873 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415560332] [2021-07-14 16:34:14,873 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:34:14,905 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-07-14 16:34:14,906 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:34:14,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-14 16:34:14,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:34:15,089 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:34:15,089 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415560332] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:34:15,089 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:34:15,090 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-07-14 16:34:15,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107612257] [2021-07-14 16:34:15,090 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-14 16:34:15,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:34:15,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-14 16:34:15,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-07-14 16:34:15,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:34:15,091 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:34:15,091 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.6) internal successors, (52), 20 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:34:15,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:34:15,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 16:34:15,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:34:15,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 16:34:15,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:34:15,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 16:34:15,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:34:15,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:34:15,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 16:34:15,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:34:15,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 16:34:15,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:34:15,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 16:34:15,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 16:34:15,652 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:34:15,653 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:34:15,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:34:15,653 INFO L82 PathProgramCache]: Analyzing trace with hash 745695363, now seen corresponding path program 4 times [2021-07-14 16:34:15,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:34:15,653 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659023201] [2021-07-14 16:34:15,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:34:15,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:34:15,717 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 16:34:15,717 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:34:15,717 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659023201] [2021-07-14 16:34:15,717 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659023201] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:34:15,717 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153450067] [2021-07-14 16:34:15,717 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:34:15,756 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 16:34:15,756 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:34:15,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-14 16:34:15,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:34:15,900 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 16:34:15,901 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [153450067] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:34:15,901 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:34:15,901 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-07-14 16:34:15,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874843412] [2021-07-14 16:34:15,901 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-14 16:34:15,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:34:15,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-14 16:34:15,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-07-14 16:34:15,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:34:15,902 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:34:15,902 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 17 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:34:15,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:34:15,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 16:34:15,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:34:15,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 16:34:15,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:34:15,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 16:34:15,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 16:34:15,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:34:16,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:34:16,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 16:34:16,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:34:16,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 16:34:16,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:34:16,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 16:34:16,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 16:34:16,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 16:34:16,260 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:34:16,261 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:34:16,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:34:16,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1268712863, now seen corresponding path program 5 times [2021-07-14 16:34:16,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:34:16,262 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642654956] [2021-07-14 16:34:16,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:34:16,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:34:16,687 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:34:16,687 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:34:16,687 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642654956] [2021-07-14 16:34:16,687 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642654956] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:34:16,687 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831929242] [2021-07-14 16:34:16,687 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:34:16,749 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-07-14 16:34:16,749 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:34:16,750 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 48 conjunts are in the unsatisfiable core [2021-07-14 16:34:16,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:34:24,525 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:34:24,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:34:24,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:34:24,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:34:24,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:34:24,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 77 [2021-07-14 16:34:24,533 INFO L550 ElimStorePlain]: Start of recursive call 2: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-07-14 16:34:24,542 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:34:24,544 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:34:24,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:34:24,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:34:24,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:34:24,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:34:24,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 57 [2021-07-14 16:34:24,564 INFO L550 ElimStorePlain]: Start of recursive call 3: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-07-14 16:34:24,573 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:34:24,627 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:34:24,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 57 treesize of output 137 [2021-07-14 16:34:24,800 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 128 [2021-07-14 16:34:25,005 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 140 [2021-07-14 16:34:25,531 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 152 [2021-07-14 16:34:25,921 WARN L205 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 216 [2021-07-14 16:34:27,038 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 285 DAG size of output: 262 [2021-07-14 16:34:28,080 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 285 DAG size of output: 262 [2021-07-14 16:34:31,826 WARN L205 SmtUtils]: Spent 3.74 s on a formula simplification. DAG size of input: 296 DAG size of output: 318 [2021-07-14 16:34:32,186 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 130 [2021-07-14 16:34:32,492 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 151 [2021-07-14 16:34:35,228 WARN L205 SmtUtils]: Spent 2.58 s on a formula simplification. DAG size of input: 353 DAG size of output: 333 [2021-07-14 16:34:36,577 WARN L205 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 291 DAG size of output: 268 [2021-07-14 16:34:37,973 WARN L205 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 260 DAG size of output: 261 [2021-07-14 16:34:39,459 WARN L205 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 264 DAG size of output: 265 [2021-07-14 16:34:41,024 WARN L205 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 263 DAG size of output: 264 [2021-07-14 16:34:44,680 WARN L205 SmtUtils]: Spent 3.65 s on a formula simplification. DAG size of input: 264 DAG size of output: 311 [2021-07-14 16:34:44,941 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 130 [2021-07-14 16:34:45,235 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 151 [2021-07-14 16:34:47,391 WARN L205 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 345 DAG size of output: 321 [2021-07-14 16:34:48,409 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 259 DAG size of output: 261 [2021-07-14 16:34:49,420 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 259 DAG size of output: 261 [2021-07-14 16:34:50,590 WARN L205 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 263 DAG size of output: 265 [2021-07-14 16:34:50,593 INFO L550 ElimStorePlain]: Start of recursive call 4: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-14 16:34:52,314 WARN L205 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 266 DAG size of output: 254 [2021-07-14 16:34:52,315 INFO L628 ElimStorePlain]: treesize reduction 1423, result has 94.1 percent of original size [2021-07-14 16:34:53,543 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 255 DAG size of output: 257 [2021-07-14 16:34:54,446 WARN L205 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 244 [2021-07-14 16:34:54,774 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 201 [2021-07-14 16:34:55,014 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 143 [2021-07-14 16:34:56,093 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 201 [2021-07-14 16:34:56,861 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-07-14 16:34:56,862 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:106, output treesize:3 [2021-07-14 16:34:56,881 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:34:56,881 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [831929242] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:34:56,881 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:34:56,881 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 30 [2021-07-14 16:34:56,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94410817] [2021-07-14 16:34:56,883 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-07-14 16:34:56,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:34:56,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-07-14 16:34:56,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=741, Unknown=4, NotChecked=0, Total=870 [2021-07-14 16:34:56,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:34:56,884 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:34:56,884 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.2333333333333334) internal successors, (67), 30 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:34:56,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:34:56,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 16:34:56,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:34:56,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 16:34:56,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:34:56,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 16:34:56,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 16:34:56,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 16:34:56,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:36:36,041 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 56 [2021-07-14 16:36:50,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:36:50,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 16:36:50,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:36:50,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 16:36:50,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:36:50,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 16:36:50,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 16:36:50,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 16:36:50,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 16:36:50,378 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-07-14 16:36:50,379 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:36:50,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:36:50,379 INFO L82 PathProgramCache]: Analyzing trace with hash -672919301, now seen corresponding path program 6 times [2021-07-14 16:36:50,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:36:50,379 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280213780] [2021-07-14 16:36:50,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:36:50,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:36:50,499 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 18 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:36:50,499 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:36:50,500 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280213780] [2021-07-14 16:36:50,500 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280213780] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:36:50,500 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2668836] [2021-07-14 16:36:50,500 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:36:50,532 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-07-14 16:36:50,532 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 16:36:50,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 16 conjunts are in the unsatisfiable core [2021-07-14 16:36:50,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:36:50,755 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 18 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:36:50,755 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2668836] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:36:50,756 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 16:36:50,756 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 29 [2021-07-14 16:36:50,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675086417] [2021-07-14 16:36:50,756 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-07-14 16:36:50,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 16:36:50,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-07-14 16:36:50,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=652, Unknown=0, NotChecked=0, Total=812 [2021-07-14 16:36:50,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:36:50,757 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 16:36:50,757 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.413793103448276) internal successors, (70), 29 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 16:36:50,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:36:50,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 16:36:50,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:36:50,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 16:36:50,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:36:50,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 16:36:50,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-14 16:36:50,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 16:36:50,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 16:36:50,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 16:36:51,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 16:36:51,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 16:36:51,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 16:36:51,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 16:36:51,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 16:36:51,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 16:36:51,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 16:36:51,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 16:36:51,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 16:36:51,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-14 16:36:51,215 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable520 [2021-07-14 16:36:51,215 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 16:36:51,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 16:36:51,215 INFO L82 PathProgramCache]: Analyzing trace with hash -402004775, now seen corresponding path program 7 times [2021-07-14 16:36:51,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 16:36:51,216 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067422829] [2021-07-14 16:36:51,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 16:36:51,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:36:51,930 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 1 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 16:36:51,930 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 16:36:51,930 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067422829] [2021-07-14 16:36:51,930 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067422829] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 16:36:51,930 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402734433] [2021-07-14 16:36:51,930 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 16:36:51,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 16:36:51,969 WARN L261 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 64 conjunts are in the unsatisfiable core [2021-07-14 16:36:51,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 16:36:52,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:36:52,819 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:36:52,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:36:52,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:36:52,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:36:52,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:36:52,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:36:52,823 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:36:52,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:36:52,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:36:52,825 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:36:52,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 21 disjoint index pairs (out of 45 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 109 [2021-07-14 16:36:52,830 INFO L550 ElimStorePlain]: Start of recursive call 2: 7 dim-0 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2021-07-14 16:36:52,839 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:36:52,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:36:52,842 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:36:52,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:36:52,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:36:52,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:36:52,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:36:52,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:36:52,846 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:36:52,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:36:52,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 16:36:52,848 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 16:36:52,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 21 disjoint index pairs (out of 45 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 77 [2021-07-14 16:36:52,853 INFO L550 ElimStorePlain]: Start of recursive call 3: 7 dim-0 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2021-07-14 16:36:52,861 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:36:52,982 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-07-14 16:36:52,983 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 16:36:52,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 77 treesize of output 273 [2021-07-14 16:36:53,409 WARN L205 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 191 [2021-07-14 16:36:54,412 WARN L205 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 231 DAG size of output: 213 [2021-07-14 16:36:57,013 WARN L205 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 256 DAG size of output: 236 [2021-07-14 16:36:59,615 WARN L205 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 256 DAG size of output: 236 [2021-07-14 16:37:02,425 WARN L205 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 278 DAG size of output: 258 [2021-07-14 16:37:09,830 WARN L205 SmtUtils]: Spent 7.40 s on a formula simplification. DAG size of input: 258 DAG size of output: 279 [2021-07-14 16:37:17,164 WARN L205 SmtUtils]: Spent 7.33 s on a formula simplification. DAG size of input: 253 DAG size of output: 277 [2021-07-14 16:37:19,028 WARN L205 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 245 DAG size of output: 245 [2021-07-14 16:37:19,736 WARN L205 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 224 [2021-07-14 16:37:20,875 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 205 DAG size of output: 222 [2021-07-14 16:37:21,132 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 197 [2021-07-14 16:37:21,959 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 287 DAG size of output: 271 [2021-07-14 16:37:22,969 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 364 DAG size of output: 333 [2021-07-14 16:37:23,334 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 144 [2021-07-14 16:37:23,879 WARN L205 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 159 [2021-07-14 16:37:27,107 WARN L205 SmtUtils]: Spent 3.23 s on a formula simplification. DAG size of input: 454 DAG size of output: 409 [2021-07-14 16:37:36,197 WARN L205 SmtUtils]: Spent 9.09 s on a formula simplification. DAG size of input: 535 DAG size of output: 484 [2021-07-14 16:37:36,376 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 152 [2021-07-14 16:37:36,774 WARN L205 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 168 [2021-07-14 16:37:56,736 WARN L205 SmtUtils]: Spent 19.96 s on a formula simplification. DAG size of input: 627 DAG size of output: 562 [2021-07-14 16:37:56,988 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 135 [2021-07-14 16:37:57,413 WARN L205 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 164 [2021-07-14 16:38:46,289 WARN L205 SmtUtils]: Spent 48.87 s on a formula simplification. DAG size of input: 708 DAG size of output: 630 [2021-07-14 16:40:47,909 WARN L205 SmtUtils]: Spent 2.03 m on a formula simplification. DAG size of input: 789 DAG size of output: 709 [2021-07-14 16:45:34,899 WARN L205 SmtUtils]: Spent 4.78 m on a formula simplification. DAG size of input: 865 DAG size of output: 781 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown