/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random7777.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-07 04:25:22,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-07 04:25:22,926 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-07 04:25:22,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-07 04:25:22,957 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-07 04:25:22,958 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-07 04:25:22,958 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-07 04:25:22,959 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-07 04:25:22,959 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-07 04:25:22,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-07 04:25:22,961 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-07 04:25:22,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-07 04:25:22,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-07 04:25:22,964 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-07 04:25:22,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-07 04:25:22,979 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-07 04:25:22,980 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-07 04:25:22,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-07 04:25:22,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-07 04:25:22,987 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-07 04:25:22,987 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random7777.epf [2021-06-07 04:25:23,002 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-07 04:25:23,002 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-07 04:25:23,002 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-07 04:25:23,003 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-07 04:25:23,003 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-07 04:25:23,003 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-07 04:25:23,004 INFO L138 SettingsManager]: * Use SBE=true [2021-06-07 04:25:23,004 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-07 04:25:23,004 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-07 04:25:23,004 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-07 04:25:23,004 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-07 04:25:23,004 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-07 04:25:23,004 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-07 04:25:23,004 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-07 04:25:23,004 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-07 04:25:23,005 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-07 04:25:23,005 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-07 04:25:23,005 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-07 04:25:23,005 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-07 04:25:23,005 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-07 04:25:23,005 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-07 04:25:23,005 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-07 04:25:23,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-07 04:25:23,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-07 04:25:23,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-07 04:25:23,006 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-07 04:25:23,006 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-07 04:25:23,006 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-07 04:25:23,006 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-07 04:25:23,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-07 04:25:23,006 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-07 04:25:23,006 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-07 04:25:23,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-07 04:25:23,006 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-07 04:25:23,007 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-07 04:25:23,007 INFO L138 SettingsManager]: * Random seed used by POR DFS order=7777 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-07 04:25:23,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-07 04:25:23,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-07 04:25:23,273 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-07 04:25:23,273 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-07 04:25:23,274 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-07 04:25:23,275 INFO L432 ainManager$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 [2021-06-07 04:25:23,275 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product.wvr.bpl' [2021-06-07 04:25:23,309 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-07 04:25:23,310 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-07 04:25:23,311 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-07 04:25:23,311 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-07 04:25:23,311 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-07 04:25:23,320 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 07.06 04:25:23" (1/1) ... [2021-06-07 04:25:23,327 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 07.06 04:25:23" (1/1) ... [2021-06-07 04:25:23,332 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-07 04:25:23,333 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-07 04:25:23,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-07 04:25:23,333 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-07 04:25:23,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:25:23" (1/1) ... [2021-06-07 04:25:23,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:25:23" (1/1) ... [2021-06-07 04:25:23,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:25:23" (1/1) ... [2021-06-07 04:25:23,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:25:23" (1/1) ... [2021-06-07 04:25:23,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:25:23" (1/1) ... [2021-06-07 04:25:23,347 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:25:23" (1/1) ... [2021-06-07 04:25:23,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:25:23" (1/1) ... [2021-06-07 04:25:23,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-07 04:25:23,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-07 04:25:23,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-07 04:25:23,353 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-07 04:25:23,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:25:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-07 04:25:23,467 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-07 04:25:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-07 04:25:23,467 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-07 04:25:23,467 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-07 04:25:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-07 04:25:23,467 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-07 04:25:23,468 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-07 04:25:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-07 04:25:23,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-07 04:25:23,468 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-07 04:25:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-07 04:25:23,468 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-07 04:25:23,469 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-07 04:25:23,628 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-07 04:25:23,628 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-07 04:25:23,629 INFO L202 PluginConnector]: Adding new model dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.06 04:25:23 BoogieIcfgContainer [2021-06-07 04:25:23,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-07 04:25:23,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-07 04:25:23,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-07 04:25:23,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-07 04:25:23,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:25:23" (1/2) ... [2021-06-07 04:25:23,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49cf50aa and model type dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.06 04:25:23, skipping insertion in model container [2021-06-07 04:25:23,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.06 04:25:23" (2/2) ... [2021-06-07 04:25:23,634 INFO L111 eAbstractionObserver]: Analyzing ICFG dot-product.wvr.bpl [2021-06-07 04:25:23,638 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-07 04:25:23,638 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-07 04:25:23,638 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-07 04:25:23,639 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-07 04:25:23,680 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-07 04:25:23,695 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-07 04:25:23,796 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-07 04:25:23,796 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-07 04:25:23,796 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-07 04:25:23,796 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-07 04:25:23,796 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-07 04:25:23,796 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-07 04:25:23,796 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-07 04:25:23,796 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-07 04:25:23,823 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:25:23,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:25:23,827 INFO L82 PathProgramCache]: Analyzing trace with hash -718366127, now seen corresponding path program 1 times [2021-06-07 04:25:23,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:25:23,832 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639845141] [2021-06-07 04:25:23,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:25:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:25:23,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:25:23,925 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:25:23,925 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639845141] [2021-06-07 04:25:23,926 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639845141] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 04:25:23,926 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 04:25:23,926 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-07 04:25:23,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685284269] [2021-06-07 04:25:23,929 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-07 04:25:23,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 04:25:23,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-07 04:25:23,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-07 04:25:23,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:25:23,939 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 04:25:23,940 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) [2021-06-07 04:25:23,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:25:23,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:25:23,950 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-07 04:25:23,951 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:25:23,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:25:23,951 INFO L82 PathProgramCache]: Analyzing trace with hash -58018061, now seen corresponding path program 1 times [2021-06-07 04:25:23,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:25:23,951 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071056325] [2021-06-07 04:25:23,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:25:23,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:25:24,025 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-07 04:25:24,026 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:25:24,026 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071056325] [2021-06-07 04:25:24,026 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071056325] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 04:25:24,026 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 04:25:24,026 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-07 04:25:24,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552650915] [2021-06-07 04:25:24,027 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-07 04:25:24,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 04:25:24,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-07 04:25:24,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-06-07 04:25:24,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:25:24,029 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 04:25:24,029 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 04:25:24,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:25:24,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:25:24,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:25:24,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 04:25:24,107 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-07 04:25:24,107 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:25:24,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:25:24,108 INFO L82 PathProgramCache]: Analyzing trace with hash -2097039331, now seen corresponding path program 1 times [2021-06-07 04:25:24,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:25:24,108 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745168061] [2021-06-07 04:25:24,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:25:24,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:25:24,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-07 04:25:24,151 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:25:24,151 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745168061] [2021-06-07 04:25:24,152 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745168061] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 04:25:24,152 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 04:25:24,152 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-07 04:25:24,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489983296] [2021-06-07 04:25:24,152 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-07 04:25:24,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 04:25:24,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-07 04:25:24,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-07 04:25:24,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:25:24,154 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 04:25:24,154 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 04:25:24,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:25:24,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 04:25:24,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:25:24,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:25:24,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 04:25:24,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:25:24,177 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-07 04:25:24,177 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:25:24,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:25:24,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1824159631, now seen corresponding path program 1 times [2021-06-07 04:25:24,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:25:24,177 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789576518] [2021-06-07 04:25:24,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:25:24,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:25:24,372 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:25:24,372 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:25:24,372 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789576518] [2021-06-07 04:25:24,372 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789576518] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:25:24,372 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323581072] [2021-06-07 04:25:24,372 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) [2021-06-07 04:25:24,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:25:24,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 16 conjunts are in the unsatisfiable core [2021-06-07 04:25:24,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 04:25:24,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-06-07 04:25:24,651 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-07 04:25:24,659 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 04:25:24,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-06-07 04:25:24,674 INFO L550 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-07 04:25:24,680 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 04:25:24,682 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 [2021-06-07 04:25:24,683 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-07 04:25:24,687 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 04:25:24,689 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. [2021-06-07 04:25:24,689 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:31, output treesize:3 [2021-06-07 04:25:24,720 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:25:24,720 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323581072] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:25:24,720 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 04:25:24,720 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-06-07 04:25:24,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939794907] [2021-06-07 04:25:24,721 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-07 04:25:24,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 04:25:24,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-07 04:25:24,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-06-07 04:25:24,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:25:24,722 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 04:25:24,722 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 04:25:24,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:25:24,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 04:25:24,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:25:24,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:25:24,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:25:24,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 04:25:24,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:25:24,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-07 04:25:25,064 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:25:25,065 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:25:25,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:25:25,065 INFO L82 PathProgramCache]: Analyzing trace with hash -527156047, now seen corresponding path program 2 times [2021-06-07 04:25:25,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:25:25,066 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172140915] [2021-06-07 04:25:25,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:25:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:25:25,128 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:25:25,128 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:25:25,129 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172140915] [2021-06-07 04:25:25,129 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172140915] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:25:25,129 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845393958] [2021-06-07 04:25:25,129 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) [2021-06-07 04:25:25,156 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-07 04:25:25,156 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 04:25:25,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-07 04:25:25,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:25:25,255 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:25:25,256 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845393958] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:25:25,256 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 04:25:25,256 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2021-06-07 04:25:25,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615229010] [2021-06-07 04:25:25,256 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-07 04:25:25,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 04:25:25,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-07 04:25:25,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-06-07 04:25:25,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:25:25,257 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 04:25:25,257 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 13 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 04:25:25,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:25:25,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 04:25:25,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:25:25,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-07 04:25:25,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:25:25,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:25:25,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 04:25:25,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:25:25,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-07 04:25:25,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 04:25:25,636 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:25:25,637 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:25:25,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:25:25,637 INFO L82 PathProgramCache]: Analyzing trace with hash -471600019, now seen corresponding path program 3 times [2021-06-07 04:25:25,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:25:25,638 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385865125] [2021-06-07 04:25:25,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:25:25,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:25:25,703 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:25:25,704 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:25:25,704 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385865125] [2021-06-07 04:25:25,704 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385865125] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:25:25,704 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139151704] [2021-06-07 04:25:25,704 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:25:25,732 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-07 04:25:25,732 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 04:25:25,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-07 04:25:25,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 04:25:25,795 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:25:25,795 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139151704] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:25:25,795 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 04:25:25,795 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2021-06-07 04:25:25,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99051466] [2021-06-07 04:25:25,796 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-07 04:25:25,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 04:25:25,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-07 04:25:25,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-06-07 04:25:25,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:25:25,798 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 04:25:25,798 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 04:25:25,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:25:25,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 04:25:25,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:25:25,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-07 04:25:25,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 04:25:25,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:25:25,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:25:25,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 04:25:25,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:25:25,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-07 04:25:25,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 04:25:25,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-07 04:25:26,124 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:25:26,125 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:25:26,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:25:26,125 INFO L82 PathProgramCache]: Analyzing trace with hash 861010447, now seen corresponding path program 4 times [2021-06-07 04:25:26,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:25:26,126 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889650522] [2021-06-07 04:25:26,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:25:26,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:25:26,372 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:25:26,373 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:25:26,373 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889650522] [2021-06-07 04:25:26,373 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889650522] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:25:26,373 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035645675] [2021-06-07 04:25:26,373 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-06-07 04:25:26,412 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-07 04:25:26,412 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 04:25:26,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 24 conjunts are in the unsatisfiable core [2021-06-07 04:25:26,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:25:26,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:26,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 39 [2021-06-07 04:25:26,572 INFO L550 ElimStorePlain]: Start of recursive call 2: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-06-07 04:25:26,578 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 04:25:26,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:26,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2021-06-07 04:25:26,584 INFO L550 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-06-07 04:25:26,590 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 04:25:26,596 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 04:25:26,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 23 [2021-06-07 04:25:26,600 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-07 04:25:26,608 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 04:25:26,611 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. [2021-06-07 04:25:26,611 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:57, output treesize:3 [2021-06-07 04:25:26,638 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:25:26,639 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2035645675] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:25:26,639 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 04:25:26,639 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 16 [2021-06-07 04:25:26,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520887693] [2021-06-07 04:25:26,639 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-07 04:25:26,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 04:25:26,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-07 04:25:26,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2021-06-07 04:25:26,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:25:26,640 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 04:25:26,640 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 16 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 04:25:26,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:25:26,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 04:25:26,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:25:26,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-07 04:25:26,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 04:25:26,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-07 04:25:26,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:25:26,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:25:26,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 04:25:26,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:25:26,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-07 04:25:26,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 04:25:26,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-07 04:25:26,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-07 04:25:27,173 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-06-07 04:25:27,173 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:25:27,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:25:27,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1599414065, now seen corresponding path program 5 times [2021-06-07 04:25:27,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:25:27,174 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984177673] [2021-06-07 04:25:27,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:25:27,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:25:27,245 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:25:27,245 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:25:27,245 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984177673] [2021-06-07 04:25:27,245 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984177673] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:25:27,245 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606871625] [2021-06-07 04:25:27,245 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:25:27,273 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-06-07 04:25:27,274 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 04:25:27,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-07 04:25:27,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 04:25:27,388 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:25:27,388 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606871625] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:25:27,388 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 04:25:27,388 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2021-06-07 04:25:27,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521087296] [2021-06-07 04:25:27,388 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-07 04:25:27,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 04:25:27,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-07 04:25:27,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2021-06-07 04:25:27,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:25:27,389 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 04:25:27,389 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 04:25:27,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:25:27,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 04:25:27,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:25:27,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-07 04:25:27,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 04:25:27,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-07 04:25:27,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-07 04:25:27,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:25:27,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:25:27,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 04:25:27,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:25:27,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-07 04:25:27,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 04:25:27,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-07 04:25:27,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 04:25:27,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-07 04:25:27,956 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:25:27,956 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:25:27,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:25:27,957 INFO L82 PathProgramCache]: Analyzing trace with hash -845817875, now seen corresponding path program 6 times [2021-06-07 04:25:27,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:25:27,957 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241082920] [2021-06-07 04:25:27,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:25:27,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:25:28,037 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:25:28,038 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:25:28,038 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241082920] [2021-06-07 04:25:28,038 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241082920] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:25:28,038 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559577408] [2021-06-07 04:25:28,038 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:25:28,086 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-06-07 04:25:28,086 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 04:25:28,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-07 04:25:28,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 04:25:28,152 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:25:28,152 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559577408] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:25:28,152 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 04:25:28,152 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 12 [2021-06-07 04:25:28,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874981172] [2021-06-07 04:25:28,153 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-07 04:25:28,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 04:25:28,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-07 04:25:28,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-06-07 04:25:28,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:25:28,153 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 04:25:28,153 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 04:25:28,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:25:28,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 04:25:28,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:25:28,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-07 04:25:28,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 04:25:28,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-07 04:25:28,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-07 04:25:28,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-07 04:25:28,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:25:28,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:25:28,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 04:25:28,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:25:28,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-07 04:25:28,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 04:25:28,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-07 04:25:28,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 04:25:28,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-07 04:25:28,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 04:25:28,504 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:25:28,505 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:25:28,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:25:28,505 INFO L82 PathProgramCache]: Analyzing trace with hash 2014903695, now seen corresponding path program 7 times [2021-06-07 04:25:28,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:25:28,505 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651710252] [2021-06-07 04:25:28,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:25:28,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:25:28,828 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:25:28,828 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:25:28,828 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651710252] [2021-06-07 04:25:28,828 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651710252] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:25:28,828 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187759961] [2021-06-07 04:25:28,828 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:25:28,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:25:28,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 32 conjunts are in the unsatisfiable core [2021-06-07 04:25:28,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 04:25:29,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:29,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:29,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:29,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 57 [2021-06-07 04:25:29,071 INFO L550 ElimStorePlain]: Start of recursive call 2: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-06-07 04:25:29,077 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 04:25:29,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:29,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:29,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:29,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 37 [2021-06-07 04:25:29,116 INFO L550 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-06-07 04:25:29,122 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 04:25:29,136 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 04:25:29,136 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 [2021-06-07 04:25:29,169 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-07 04:25:29,195 INFO L628 ElimStorePlain]: treesize reduction 56, result has 36.4 percent of original size [2021-06-07 04:25:29,199 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. [2021-06-07 04:25:29,199 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:83, output treesize:3 [2021-06-07 04:25:29,220 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:25:29,220 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [187759961] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:25:29,221 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 04:25:29,221 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 20 [2021-06-07 04:25:29,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183725468] [2021-06-07 04:25:29,222 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-06-07 04:25:29,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 04:25:29,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-06-07 04:25:29,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2021-06-07 04:25:29,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:25:29,223 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 04:25:29,223 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 2.380952380952381) internal successors, (50), 20 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) [2021-06-07 04:25:29,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:25:29,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 04:25:29,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:25:29,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-07 04:25:29,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 04:25:29,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-07 04:25:29,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-07 04:25:29,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-07 04:25:29,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-07 04:25:29,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:25:29,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:25:29,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 04:25:29,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:25:29,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-07 04:25:29,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 04:25:29,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-07 04:25:29,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 04:25:29,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-07 04:25:29,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 04:25:29,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-07 04:25:30,140 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-06-07 04:25:30,141 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:25:30,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:25:30,141 INFO L82 PathProgramCache]: Analyzing trace with hash -1905704271, now seen corresponding path program 8 times [2021-06-07 04:25:30,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:25:30,141 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543766964] [2021-06-07 04:25:30,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:25:30,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:25:30,219 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:25:30,220 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:25:30,220 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543766964] [2021-06-07 04:25:30,220 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543766964] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:25:30,220 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40814699] [2021-06-07 04:25:30,220 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:25:30,265 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-07 04:25:30,265 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 04:25:30,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-07 04:25:30,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 04:25:30,416 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:25:30,416 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40814699] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:25:30,416 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 04:25:30,417 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 21 [2021-06-07 04:25:30,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60282674] [2021-06-07 04:25:30,418 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-07 04:25:30,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 04:25:30,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-07 04:25:30,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=366, Unknown=0, NotChecked=0, Total=462 [2021-06-07 04:25:30,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:25:30,418 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 04:25:30,419 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.5) internal successors, (55), 21 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 04:25:30,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:25:30,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 04:25:30,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:25:30,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-07 04:25:30,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 04:25:30,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-07 04:25:30,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-07 04:25:30,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-07 04:25:30,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-07 04:25:30,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-07 04:25:30,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:25:31,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:25:31,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 04:25:31,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:25:31,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-07 04:25:31,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 04:25:31,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-07 04:25:31,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 04:25:31,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-07 04:25:31,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 04:25:31,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-07 04:25:31,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-07 04:25:31,235 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:25:31,236 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:25:31,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:25:31,236 INFO L82 PathProgramCache]: Analyzing trace with hash -885341681, now seen corresponding path program 9 times [2021-06-07 04:25:31,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:25:31,236 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392447343] [2021-06-07 04:25:31,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:25:31,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:25:31,638 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:25:31,638 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:25:31,638 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392447343] [2021-06-07 04:25:31,638 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392447343] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:25:31,638 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1737332023] [2021-06-07 04:25:31,638 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:25:31,667 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-07 04:25:31,668 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 04:25:31,668 WARN L261 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 46 conjunts are in the unsatisfiable core [2021-06-07 04:25:31,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 04:25:32,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:32,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:32,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:32,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:32,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:32,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:32,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 75 [2021-06-07 04:25:32,079 INFO L550 ElimStorePlain]: Start of recursive call 2: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-06-07 04:25:32,091 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 04:25:32,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:32,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:32,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:32,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:32,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:32,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:32,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 47 [2021-06-07 04:25:32,099 INFO L550 ElimStorePlain]: Start of recursive call 3: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2021-06-07 04:25:32,110 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 04:25:32,136 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 04:25:32,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 87 [2021-06-07 04:25:32,466 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-07 04:25:32,790 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 93 [2021-06-07 04:25:32,790 INFO L628 ElimStorePlain]: treesize reduction 740, result has 45.2 percent of original size [2021-06-07 04:25:32,872 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. [2021-06-07 04:25:32,872 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:122, output treesize:18 [2021-06-07 04:25:32,926 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:25:32,926 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1737332023] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:25:32,926 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 04:25:32,926 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 27 [2021-06-07 04:25:32,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117761478] [2021-06-07 04:25:32,927 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-07 04:25:32,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 04:25:32,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-07 04:25:32,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=641, Unknown=0, NotChecked=0, Total=756 [2021-06-07 04:25:32,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:25:32,927 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 04:25:32,927 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.0714285714285716) internal successors, (58), 27 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 04:25:32,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:25:32,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 04:25:32,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:25:32,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-07 04:25:32,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 04:25:32,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-07 04:25:32,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-07 04:25:32,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-07 04:25:32,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-07 04:25:32,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-07 04:25:32,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-06-07 04:25:32,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:25:34,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:25:34,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 04:25:34,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:25:34,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-07 04:25:34,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 04:25:34,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-07 04:25:34,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 04:25:34,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-07 04:25:34,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 04:25:34,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-07 04:25:34,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-07 04:25:34,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-07 04:25:34,220 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-06-07 04:25:34,221 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:25:34,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:25:34,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1607735503, now seen corresponding path program 10 times [2021-06-07 04:25:34,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:25:34,221 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880234780] [2021-06-07 04:25:34,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:25:34,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:25:34,305 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:25:34,305 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:25:34,306 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880234780] [2021-06-07 04:25:34,306 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880234780] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:25:34,306 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838554149] [2021-06-07 04:25:34,306 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:25:34,333 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-07 04:25:34,333 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 04:25:34,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-07 04:25:34,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 04:25:34,493 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:25:34,493 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838554149] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:25:34,493 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 04:25:34,494 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 25 [2021-06-07 04:25:34,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101069858] [2021-06-07 04:25:34,494 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-07 04:25:34,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 04:25:34,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-07 04:25:34,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2021-06-07 04:25:34,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:25:34,495 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 04:25:34,495 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.423076923076923) internal successors, (63), 25 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 04:25:34,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:25:34,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 04:25:34,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:25:34,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-07 04:25:34,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 04:25:34,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-07 04:25:34,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-07 04:25:34,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-07 04:25:34,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-07 04:25:34,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-07 04:25:34,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-06-07 04:25:34,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-07 04:25:34,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:25:35,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:25:35,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 04:25:35,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:25:35,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-07 04:25:35,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 04:25:35,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-07 04:25:35,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 04:25:35,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-07 04:25:35,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 04:25:35,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-07 04:25:35,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-07 04:25:35,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-07 04:25:35,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-07 04:25:35,681 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-06-07 04:25:35,681 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:25:35,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:25:35,681 INFO L82 PathProgramCache]: Analyzing trace with hash 257066895, now seen corresponding path program 11 times [2021-06-07 04:25:35,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:25:35,681 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193177457] [2021-06-07 04:25:35,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:25:35,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:25:36,194 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 4 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:25:36,195 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:25:36,195 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193177457] [2021-06-07 04:25:36,195 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193177457] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:25:36,195 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953707106] [2021-06-07 04:25:36,195 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:25:36,224 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-06-07 04:25:36,224 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 04:25:36,225 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 50 conjunts are in the unsatisfiable core [2021-06-07 04:25:36,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 04:25:36,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:36,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:36,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:36,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:36,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:36,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:36,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:36,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:36,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:36,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:36,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:36,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:36,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:36,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:36,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:36,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:36,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:36,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:36,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:36,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:36,751 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 04:25:36,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 113 treesize of output 225 [2021-06-07 04:25:53,074 INFO L550 ElimStorePlain]: Start of recursive call 2: 10 dim-0 vars, End of recursive call: 10 dim-0 vars, and 1 xjuncts. [2021-06-07 04:25:53,154 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 04:25:53,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:53,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:53,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:53,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:53,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:53,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:53,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:53,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:53,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:53,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:53,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:53,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:53,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:53,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:53,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:53,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:53,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:53,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:53,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:53,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:25:53,248 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 04:25:53,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 85 treesize of output 197 [2021-06-07 04:26:07,976 INFO L550 ElimStorePlain]: Start of recursive call 3: 10 dim-0 vars, End of recursive call: 10 dim-0 vars, and 1 xjuncts. [2021-06-07 04:26:08,134 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2021-06-07 04:26:08,134 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 04:26:08,565 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2021-06-07 04:26:08,565 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 04:26:08,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 57 treesize of output 557 [2021-06-07 04:26:09,121 WARN L205 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 206 [2021-06-07 04:26:10,149 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 248 DAG size of output: 237 [2021-06-07 04:26:12,676 WARN L205 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 290 DAG size of output: 276 [2021-06-07 04:26:18,730 WARN L205 SmtUtils]: Spent 6.05 s on a formula simplification. DAG size of input: 331 DAG size of output: 307 [2021-06-07 04:26:33,077 WARN L205 SmtUtils]: Spent 14.35 s on a formula simplification. DAG size of input: 368 DAG size of output: 338 [2021-06-07 04:27:06,521 WARN L205 SmtUtils]: Spent 33.44 s on a formula simplification. DAG size of input: 407 DAG size of output: 371 [2021-06-07 04:28:23,979 WARN L205 SmtUtils]: Spent 1.29 m on a formula simplification. DAG size of input: 444 DAG size of output: 401 [2021-06-07 04:31:21,829 WARN L205 SmtUtils]: Spent 2.96 m on a formula simplification. DAG size of input: 484 DAG size of output: 431 [2021-06-07 04:38:05,280 WARN L205 SmtUtils]: Spent 6.72 m on a formula simplification. DAG size of input: 535 DAG size of output: 463 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown