/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-10 02:20:29,933 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-10 02:20:29,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-10 02:20:29,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-10 02:20:29,980 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-10 02:20:29,981 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-10 02:20:29,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-10 02:20:29,983 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-10 02:20:29,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-10 02:20:29,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-10 02:20:29,987 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-10 02:20:29,991 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-10 02:20:29,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-10 02:20:29,994 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-10 02:20:29,995 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-10 02:20:29,996 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-10 02:20:30,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-10 02:20:30,009 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-10 02:20:30,009 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-10 02:20:30,010 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-10 02:20:30,014 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe.epf [2021-07-10 02:20:30,045 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-10 02:20:30,045 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-10 02:20:30,045 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-10 02:20:30,046 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-10 02:20:30,047 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-10 02:20:30,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-10 02:20:30,048 INFO L138 SettingsManager]: * Use SBE=true [2021-07-10 02:20:30,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-10 02:20:30,048 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-10 02:20:30,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-10 02:20:30,049 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-10 02:20:30,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-10 02:20:30,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-10 02:20:30,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-10 02:20:30,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-10 02:20:30,050 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-10 02:20:30,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-10 02:20:30,050 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-10 02:20:30,050 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-10 02:20:30,050 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-10 02:20:30,050 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-10 02:20:30,050 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-10 02:20:30,050 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-10 02:20:30,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 02:20:30,051 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-10 02:20:30,051 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-10 02:20:30,051 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-10 02:20:30,060 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-10 02:20:30,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-10 02:20:30,061 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-10 02:20:30,061 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-10 02:20:30,061 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-10 02:20:30,061 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-10 02:20:30,061 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-10 02:20:30,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-10 02:20:30,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-10 02:20:30,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-10 02:20:30,309 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-10 02:20:30,310 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-10 02:20:30,310 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product.wvr.bpl [2021-07-10 02:20:30,311 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product.wvr.bpl' [2021-07-10 02:20:30,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-10 02:20:30,353 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-10 02:20:30,354 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-10 02:20:30,354 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-10 02:20:30,354 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-10 02:20:30,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:20:30" (1/1) ... [2021-07-10 02:20:30,372 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:20:30" (1/1) ... [2021-07-10 02:20:30,379 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-10 02:20:30,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-10 02:20:30,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-10 02:20:30,382 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-10 02:20:30,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:20:30" (1/1) ... [2021-07-10 02:20:30,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:20:30" (1/1) ... [2021-07-10 02:20:30,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:20:30" (1/1) ... [2021-07-10 02:20:30,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:20:30" (1/1) ... [2021-07-10 02:20:30,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:20:30" (1/1) ... [2021-07-10 02:20:30,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:20:30" (1/1) ... [2021-07-10 02:20:30,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:20:30" (1/1) ... [2021-07-10 02:20:30,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-10 02:20:30,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-10 02:20:30,404 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-10 02:20:30,404 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-10 02:20:30,406 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:20:30" (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 [2021-07-10 02:20:30,465 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-10 02:20:30,465 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-10 02:20:30,465 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-10 02:20:30,465 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-10 02:20:30,465 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-10 02:20:30,466 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-10 02:20:30,466 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-10 02:20:30,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-10 02:20:30,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-10 02:20:30,467 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-10 02:20:30,467 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-10 02:20:30,467 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-10 02:20:30,468 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-10 02:20:30,644 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-10 02:20:30,645 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-10 02:20:30,646 INFO L202 PluginConnector]: Adding new model dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 02:20:30 BoogieIcfgContainer [2021-07-10 02:20:30,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-10 02:20:30,647 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-10 02:20:30,647 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-10 02:20:30,649 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-10 02:20:30,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:20:30" (1/2) ... [2021-07-10 02:20:30,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24fde91a and model type dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 02:20:30, skipping insertion in model container [2021-07-10 02:20:30,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 02:20:30" (2/2) ... [2021-07-10 02:20:30,651 INFO L111 eAbstractionObserver]: Analyzing ICFG dot-product.wvr.bpl [2021-07-10 02:20:30,654 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-10 02:20:30,654 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-10 02:20:30,655 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-10 02:20:30,655 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-10 02:20:30,712 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-10 02:20:30,732 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 [2021-07-10 02:20:30,770 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-10 02:20:30,771 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-10 02:20:30,771 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-10 02:20:30,771 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-10 02:20:30,771 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-10 02:20:30,771 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-10 02:20:30,771 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-10 02:20:30,771 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-10 02:20:30,842 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:20:30,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:20:30,846 INFO L82 PathProgramCache]: Analyzing trace with hash -574795467, now seen corresponding path program 1 times [2021-07-10 02:20:30,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:20:30,851 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233572770] [2021-07-10 02:20:30,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:20:30,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:20:30,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:20:30,957 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:20:30,957 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233572770] [2021-07-10 02:20:30,958 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233572770] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 02:20:30,958 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 02:20:30,958 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-10 02:20:30,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545773508] [2021-07-10 02:20:30,962 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-10 02:20:30,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:20:30,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-10 02:20:30,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-10 02:20:30,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:20:30,976 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:20:30,977 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) [2021-07-10 02:20:30,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:20:31,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:20:31,001 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-10 02:20:31,001 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:20:31,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:20:31,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1851604627, now seen corresponding path program 1 times [2021-07-10 02:20:31,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:20:31,002 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400246897] [2021-07-10 02:20:31,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:20:31,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:20:31,049 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 02:20:31,049 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:20:31,050 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400246897] [2021-07-10 02:20:31,050 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400246897] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 02:20:31,050 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 02:20:31,050 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-10 02:20:31,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615535605] [2021-07-10 02:20:31,052 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-10 02:20:31,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:20:31,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-10 02:20:31,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-10 02:20:31,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:20:31,053 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:20:31,053 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) [2021-07-10 02:20:31,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:20:31,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:20:31,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:20:31,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:20:31,104 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-10 02:20:31,104 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:20:31,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:20:31,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1712675697, now seen corresponding path program 1 times [2021-07-10 02:20:31,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:20:31,105 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149957916] [2021-07-10 02:20:31,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:20:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:20:31,453 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:20:31,453 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:20:31,454 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149957916] [2021-07-10 02:20:31,454 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149957916] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:20:31,454 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322700714] [2021-07-10 02:20:31,454 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 [2021-07-10 02:20:31,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:20:31,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-10 02:20:31,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 02:20:31,870 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 02:20:31,874 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 [2021-07-10 02:20:31,881 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-10 02:20:31,896 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 02:20:31,905 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 02:20:31,906 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 [2021-07-10 02:20:31,912 INFO L550 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-10 02:20:31,921 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 02:20:31,924 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 [2021-07-10 02:20:31,926 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-10 02:20:31,931 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 02:20:31,934 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. [2021-07-10 02:20:31,935 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:29, output treesize:3 [2021-07-10 02:20:31,981 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:20:31,982 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [322700714] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:20:31,982 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 02:20:31,983 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-07-10 02:20:31,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549134871] [2021-07-10 02:20:31,985 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-10 02:20:31,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:20:31,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-10 02:20:31,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-07-10 02:20:31,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:20:31,989 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:20:31,990 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) [2021-07-10 02:20:31,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:20:31,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:20:31,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:20:32,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:20:32,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:20:32,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:20:32,384 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 02:20:32,385 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:20:32,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:20:32,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1608291889, now seen corresponding path program 2 times [2021-07-10 02:20:32,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:20:32,385 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12079937] [2021-07-10 02:20:32,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:20:32,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:20:32,445 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:20:32,445 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:20:32,445 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12079937] [2021-07-10 02:20:32,445 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12079937] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:20:32,445 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566651293] [2021-07-10 02:20:32,446 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 [2021-07-10 02:20:32,476 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 02:20:32,477 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 02:20:32,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-10 02:20:32,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 02:20:32,618 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:20:32,619 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566651293] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:20:32,619 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 02:20:32,619 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-07-10 02:20:32,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461575922] [2021-07-10 02:20:32,621 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-10 02:20:32,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:20:32,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-10 02:20:32,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-07-10 02:20:32,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:20:32,622 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:20:32,622 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) [2021-07-10 02:20:32,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:20:32,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:20:32,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:20:32,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:20:32,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:20:32,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:20:32,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:20:32,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:20:32,992 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 02:20:32,993 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:20:32,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:20:32,993 INFO L82 PathProgramCache]: Analyzing trace with hash -534145269, now seen corresponding path program 1 times [2021-07-10 02:20:32,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:20:32,994 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677944315] [2021-07-10 02:20:32,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:20:33,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:20:33,057 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 02:20:33,058 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:20:33,058 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677944315] [2021-07-10 02:20:33,058 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677944315] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:20:33,058 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089237544] [2021-07-10 02:20:33,058 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 [2021-07-10 02:20:33,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:20:33,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-10 02:20:33,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 02:20:33,211 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 02:20:33,211 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089237544] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:20:33,211 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 02:20:33,211 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-07-10 02:20:33,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975890182] [2021-07-10 02:20:33,212 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-10 02:20:33,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:20:33,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-10 02:20:33,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-07-10 02:20:33,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:20:33,213 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:20:33,213 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) [2021-07-10 02:20:33,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:20:33,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:20:33,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:20:33,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:20:33,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:20:33,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:20:33,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:20:33,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:20:33,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:20:33,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 02:20:33,532 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 02:20:33,533 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:20:33,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:20:33,533 INFO L82 PathProgramCache]: Analyzing trace with hash -612440343, now seen corresponding path program 2 times [2021-07-10 02:20:33,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:20:33,534 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489527882] [2021-07-10 02:20:33,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:20:33,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:20:33,858 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:20:33,858 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:20:33,858 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489527882] [2021-07-10 02:20:33,858 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489527882] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:20:33,858 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559554863] [2021-07-10 02:20:33,858 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 [2021-07-10 02:20:33,894 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 02:20:33,894 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 02:20:33,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 32 conjunts are in the unsatisfiable core [2021-07-10 02:20:33,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 02:20:34,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:34,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:34,207 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 02:20:34,208 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 [2021-07-10 02:20:34,214 INFO L550 ElimStorePlain]: Start of recursive call 2: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-10 02:20:34,221 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 02:20:34,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:34,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:34,231 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 02:20:34,232 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 [2021-07-10 02:20:34,235 INFO L550 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-07-10 02:20:34,241 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 02:20:34,255 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 02:20:34,255 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 [2021-07-10 02:20:34,305 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-10 02:20:34,350 INFO L628 ElimStorePlain]: treesize reduction 68, result has 33.3 percent of original size [2021-07-10 02:20:34,354 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. [2021-07-10 02:20:34,354 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:67, output treesize:3 [2021-07-10 02:20:34,380 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:20:34,380 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559554863] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:20:34,380 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 02:20:34,381 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 22 [2021-07-10 02:20:34,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736402470] [2021-07-10 02:20:34,381 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-07-10 02:20:34,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:20:34,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-07-10 02:20:34,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2021-07-10 02:20:34,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:20:34,384 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:20:34,385 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) [2021-07-10 02:20:34,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:20:34,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:20:34,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:20:34,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:20:34,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 02:20:34,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:20:35,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:20:35,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:20:35,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:20:35,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:20:35,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 02:20:35,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:20:35,668 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-07-10 02:20:35,669 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:20:35,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:20:35,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1455404871, now seen corresponding path program 3 times [2021-07-10 02:20:35,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:20:35,670 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392664480] [2021-07-10 02:20:35,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:20:35,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:20:35,760 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:20:35,760 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:20:35,760 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392664480] [2021-07-10 02:20:35,760 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392664480] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:20:35,760 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436144425] [2021-07-10 02:20:35,760 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 [2021-07-10 02:20:35,793 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-07-10 02:20:35,793 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 02:20:35,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-10 02:20:35,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 02:20:35,975 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:20:35,975 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [436144425] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:20:35,975 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 02:20:35,975 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-07-10 02:20:35,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852524607] [2021-07-10 02:20:35,975 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-10 02:20:35,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:20:35,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-10 02:20:35,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-07-10 02:20:35,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:20:35,976 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:20:35,976 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) [2021-07-10 02:20:35,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:20:35,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:20:35,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:20:35,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:20:35,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 02:20:35,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:20:35,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:20:36,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:20:36,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:20:36,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:20:36,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:20:36,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 02:20:36,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:20:36,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 02:20:36,741 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 02:20:36,741 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:20:36,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:20:36,741 INFO L82 PathProgramCache]: Analyzing trace with hash 745695363, now seen corresponding path program 4 times [2021-07-10 02:20:36,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:20:36,742 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761606807] [2021-07-10 02:20:36,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:20:36,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:20:36,828 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 02:20:36,828 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:20:36,828 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761606807] [2021-07-10 02:20:36,829 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761606807] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:20:36,829 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701670414] [2021-07-10 02:20:36,829 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 [2021-07-10 02:20:36,879 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 02:20:36,879 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 02:20:36,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-10 02:20:36,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 02:20:37,025 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 02:20:37,026 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701670414] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:20:37,026 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 02:20:37,026 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-07-10 02:20:37,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395630477] [2021-07-10 02:20:37,026 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 02:20:37,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:20:37,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 02:20:37,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-07-10 02:20:37,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:20:37,027 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:20:37,027 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) [2021-07-10 02:20:37,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:20:37,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:20:37,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:20:37,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:20:37,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 02:20:37,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:20:37,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 02:20:37,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:20:37,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:20:37,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:20:37,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:20:37,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:20:37,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 02:20:37,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:20:37,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 02:20:37,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 02:20:37,412 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 02:20:37,413 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:20:37,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:20:37,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1268712863, now seen corresponding path program 5 times [2021-07-10 02:20:37,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:20:37,414 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851317260] [2021-07-10 02:20:37,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:20:37,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:20:37,990 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:20:37,990 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:20:37,990 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851317260] [2021-07-10 02:20:37,991 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851317260] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:20:37,991 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574857663] [2021-07-10 02:20:37,991 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 [2021-07-10 02:20:38,026 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-07-10 02:20:38,027 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 02:20:38,027 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 48 conjunts are in the unsatisfiable core [2021-07-10 02:20:38,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 02:20:48,467 WARN L205 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 50 [2021-07-10 02:20:48,807 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-07-10 02:20:50,119 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 44 [2021-07-10 02:20:50,205 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 02:20:50,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:50,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:50,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:50,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:50,209 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 [2021-07-10 02:20:50,212 INFO L550 ElimStorePlain]: Start of recursive call 2: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-07-10 02:20:50,222 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 02:20:50,224 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 02:20:50,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:50,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:50,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:50,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:50,228 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 [2021-07-10 02:20:50,232 INFO L550 ElimStorePlain]: Start of recursive call 3: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-07-10 02:20:50,241 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 02:20:50,292 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 02:20:50,293 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 [2021-07-10 02:20:50,466 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 128 [2021-07-10 02:20:50,591 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 128 [2021-07-10 02:20:51,181 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 152 [2021-07-10 02:20:51,577 WARN L205 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 216 [2021-07-10 02:20:52,671 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 285 DAG size of output: 262 [2021-07-10 02:20:53,660 WARN L205 SmtUtils]: Spent 987.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 262 [2021-07-10 02:20:57,257 WARN L205 SmtUtils]: Spent 3.59 s on a formula simplification. DAG size of input: 296 DAG size of output: 318 [2021-07-10 02:20:57,576 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 130 [2021-07-10 02:20:57,877 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 151 [2021-07-10 02:21:00,093 WARN L205 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 353 DAG size of output: 333 [2021-07-10 02:21:01,148 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 291 DAG size of output: 268 [2021-07-10 02:21:02,131 WARN L205 SmtUtils]: Spent 980.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 261 [2021-07-10 02:21:03,262 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 264 DAG size of output: 265 [2021-07-10 02:21:04,338 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 263 DAG size of output: 264 [2021-07-10 02:21:07,756 WARN L205 SmtUtils]: Spent 3.41 s on a formula simplification. DAG size of input: 264 DAG size of output: 311 [2021-07-10 02:21:08,038 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 130 [2021-07-10 02:21:08,332 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 151 [2021-07-10 02:21:10,451 WARN L205 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 345 DAG size of output: 321 [2021-07-10 02:21:11,433 WARN L205 SmtUtils]: Spent 980.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 261 [2021-07-10 02:21:12,431 WARN L205 SmtUtils]: Spent 996.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 261 [2021-07-10 02:21:13,550 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 263 DAG size of output: 265 [2021-07-10 02:21:13,553 INFO L550 ElimStorePlain]: Start of recursive call 4: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-07-10 02:21:15,182 WARN L205 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 266 DAG size of output: 254 [2021-07-10 02:21:15,183 INFO L628 ElimStorePlain]: treesize reduction 1423, result has 94.1 percent of original size [2021-07-10 02:21:16,332 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 255 DAG size of output: 257 [2021-07-10 02:21:17,211 WARN L205 SmtUtils]: Spent 876.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 244 [2021-07-10 02:21:17,520 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 201 [2021-07-10 02:21:18,110 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 143 [2021-07-10 02:21:18,876 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 201 [2021-07-10 02:21:19,697 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. [2021-07-10 02:21:19,698 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:106, output treesize:3 [2021-07-10 02:21:19,732 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:21:19,732 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574857663] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:21:19,732 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 02:21:19,732 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 30 [2021-07-10 02:21:19,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678755035] [2021-07-10 02:21:19,735 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-07-10 02:21:19,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:21:19,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-07-10 02:21:19,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=740, Unknown=5, NotChecked=0, Total=870 [2021-07-10 02:21:19,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:21:19,736 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:21:19,737 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) [2021-07-10 02:21:19,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:21:19,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:21:19,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:21:19,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:21:19,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 02:21:19,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:21:19,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 02:21:19,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 02:21:19,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:23:03,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:23:03,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:23:03,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:23:03,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:23:03,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 02:23:03,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:23:03,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 02:23:03,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 02:23:03,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 02:23:03,509 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-07-10 02:23:03,509 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:23:03,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:23:03,510 INFO L82 PathProgramCache]: Analyzing trace with hash -672919301, now seen corresponding path program 6 times [2021-07-10 02:23:03,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:23:03,510 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334103969] [2021-07-10 02:23:03,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:23:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:23:03,622 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 18 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:23:03,622 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:23:03,622 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334103969] [2021-07-10 02:23:03,622 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334103969] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:23:03,622 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116777085] [2021-07-10 02:23:03,622 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 [2021-07-10 02:23:03,654 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-07-10 02:23:03,655 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 02:23:03,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 16 conjunts are in the unsatisfiable core [2021-07-10 02:23:03,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 02:23:03,870 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 18 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:23:03,870 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [116777085] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:23:03,870 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 02:23:03,870 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 29 [2021-07-10 02:23:03,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874777564] [2021-07-10 02:23:03,871 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-07-10 02:23:03,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:23:03,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-07-10 02:23:03,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=652, Unknown=0, NotChecked=0, Total=812 [2021-07-10 02:23:03,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:23:03,871 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:23:03,872 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) [2021-07-10 02:23:03,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:23:03,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:23:03,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:23:03,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:23:03,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 02:23:03,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:23:03,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 02:23:03,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 02:23:03,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 02:23:03,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:23:04,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:23:04,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:23:04,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:23:04,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:23:04,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 02:23:04,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:23:04,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 02:23:04,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 02:23:04,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 02:23:04,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 02:23:04,354 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable520 [2021-07-10 02:23:04,355 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:23:04,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:23:04,355 INFO L82 PathProgramCache]: Analyzing trace with hash -402004775, now seen corresponding path program 7 times [2021-07-10 02:23:04,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:23:04,355 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513822986] [2021-07-10 02:23:04,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:23:04,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:23:05,028 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 1 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:23:05,028 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:23:05,028 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513822986] [2021-07-10 02:23:05,028 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513822986] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:23:05,028 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2121315606] [2021-07-10 02:23:05,028 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 [2021-07-10 02:23:05,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:23:05,060 WARN L261 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 64 conjunts are in the unsatisfiable core [2021-07-10 02:23:05,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 02:23:05,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:23:05,843 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 02:23:05,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:23:05,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:23:05,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:23:05,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:23:05,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:23:05,847 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 02:23:05,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:23:05,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:23:05,849 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 02:23:05,849 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 [2021-07-10 02:23:05,852 INFO L550 ElimStorePlain]: Start of recursive call 2: 7 dim-0 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2021-07-10 02:23:05,861 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 02:23:05,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:23:05,864 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 02:23:05,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:23:05,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:23:05,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:23:05,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:23:05,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:23:05,867 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 02:23:05,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:23:05,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:23:05,869 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 02:23:05,870 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 [2021-07-10 02:23:05,873 INFO L550 ElimStorePlain]: Start of recursive call 3: 7 dim-0 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2021-07-10 02:23:05,881 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 02:23:05,997 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-07-10 02:23:05,997 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 02:23:05,997 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 [2021-07-10 02:23:06,423 WARN L205 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 191 [2021-07-10 02:23:07,431 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 231 DAG size of output: 213 [2021-07-10 02:23:09,967 WARN L205 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 256 DAG size of output: 236 [2021-07-10 02:23:12,486 WARN L205 SmtUtils]: Spent 2.52 s on a formula simplification. DAG size of input: 256 DAG size of output: 236 [2021-07-10 02:23:15,242 WARN L205 SmtUtils]: Spent 2.75 s on a formula simplification. DAG size of input: 278 DAG size of output: 258 [2021-07-10 02:23:22,507 WARN L205 SmtUtils]: Spent 7.26 s on a formula simplification. DAG size of input: 258 DAG size of output: 279 [2021-07-10 02:23:29,853 WARN L205 SmtUtils]: Spent 7.34 s on a formula simplification. DAG size of input: 253 DAG size of output: 277 [2021-07-10 02:23:31,655 WARN L205 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 245 DAG size of output: 245 [2021-07-10 02:23:32,361 WARN L205 SmtUtils]: Spent 695.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 224 [2021-07-10 02:23:33,471 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 205 DAG size of output: 222 [2021-07-10 02:23:33,723 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 197 [2021-07-10 02:23:34,509 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 287 DAG size of output: 271 [2021-07-10 02:23:35,405 WARN L205 SmtUtils]: Spent 894.00 ms on a formula simplification. DAG size of input: 364 DAG size of output: 333 [2021-07-10 02:23:35,778 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 144 [2021-07-10 02:23:36,321 WARN L205 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 159 [2021-07-10 02:23:39,314 WARN L205 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 454 DAG size of output: 409 [2021-07-10 02:23:47,115 WARN L205 SmtUtils]: Spent 7.80 s on a formula simplification. DAG size of input: 535 DAG size of output: 484 [2021-07-10 02:23:47,289 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 152 [2021-07-10 02:23:47,681 WARN L205 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 168 [2021-07-10 02:24:07,329 WARN L205 SmtUtils]: Spent 19.65 s on a formula simplification. DAG size of input: 627 DAG size of output: 562 [2021-07-10 02:24:07,604 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 135 [2021-07-10 02:24:08,013 WARN L205 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 164 [2021-07-10 02:24:55,931 WARN L205 SmtUtils]: Spent 47.92 s on a formula simplification. DAG size of input: 708 DAG size of output: 630 [2021-07-10 02:26:51,579 WARN L205 SmtUtils]: Spent 1.93 m on a formula simplification. DAG size of input: 789 DAG size of output: 709 [2021-07-10 02:31:24,927 WARN L205 SmtUtils]: Spent 4.56 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