/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/three-array-sum-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-14 05:30:54,009 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-14 05:30:54,012 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-14 05:30:54,051 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-14 05:30:54,077 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-14 05:30:54,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-14 05:30:54,079 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-14 05:30:54,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-14 05:30:54,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-14 05:30:54,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-14 05:30:54,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-14 05:30:54,083 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-14 05:30:54,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-14 05:30:54,093 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-14 05:30:54,094 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-14 05:30:54,095 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-14 05:30:54,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-14 05:30:54,109 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Random42.epf [2021-06-14 05:30:54,133 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-14 05:30:54,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-14 05:30:54,134 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-14 05:30:54,134 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-14 05:30:54,135 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-14 05:30:54,135 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-14 05:30:54,135 INFO L138 SettingsManager]: * Use SBE=true [2021-06-14 05:30:54,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-14 05:30:54,135 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-14 05:30:54,135 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-14 05:30:54,136 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-14 05:30:54,136 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-14 05:30:54,136 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-14 05:30:54,136 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-14 05:30:54,136 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-14 05:30:54,136 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-14 05:30:54,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-14 05:30:54,137 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-14 05:30:54,137 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-14 05:30:54,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-14 05:30:54,137 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-14 05:30:54,137 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-14 05:30:54,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-14 05:30:54,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-14 05:30:54,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-14 05:30:54,157 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-14 05:30:54,158 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-14 05:30:54,158 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-14 05:30:54,158 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-14 05:30:54,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-14 05:30:54,158 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-14 05:30:54,158 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-14 05:30:54,158 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-14 05:30:54,159 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-14 05:30:54,159 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-14 05:30:54,159 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-14 05:30:54,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-14 05:30:54,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-14 05:30:54,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-14 05:30:54,448 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-14 05:30:54,449 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-14 05:30:54,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/three-array-sum-alt.wvr.bpl [2021-06-14 05:30:54,450 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/three-array-sum-alt.wvr.bpl' [2021-06-14 05:30:54,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-14 05:30:54,497 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-14 05:30:54,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-14 05:30:54,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-14 05:30:54,498 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-14 05:30:54,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:30:54" (1/1) ... [2021-06-14 05:30:54,515 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:30:54" (1/1) ... [2021-06-14 05:30:54,521 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-14 05:30:54,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-14 05:30:54,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-14 05:30:54,522 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-14 05:30:54,526 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:30:54" (1/1) ... [2021-06-14 05:30:54,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:30:54" (1/1) ... [2021-06-14 05:30:54,528 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:30:54" (1/1) ... [2021-06-14 05:30:54,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:30:54" (1/1) ... [2021-06-14 05:30:54,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:30:54" (1/1) ... [2021-06-14 05:30:54,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:30:54" (1/1) ... [2021-06-14 05:30:54,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:30:54" (1/1) ... [2021-06-14 05:30:54,539 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-14 05:30:54,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-14 05:30:54,540 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-14 05:30:54,540 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-14 05:30:54,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:30:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-14 05:30:54,622 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-14 05:30:54,623 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-14 05:30:54,623 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-14 05:30:54,623 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-14 05:30:54,623 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-14 05:30:54,623 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-14 05:30:54,624 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-14 05:30:54,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-14 05:30:54,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-14 05:30:54,625 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-14 05:30:54,625 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-14 05:30:54,625 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-14 05:30:54,626 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-14 05:30:54,841 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-14 05:30:54,842 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-14 05:30:54,843 INFO L202 PluginConnector]: Adding new model three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 05:30:54 BoogieIcfgContainer [2021-06-14 05:30:54,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-14 05:30:54,845 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-14 05:30:54,845 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-14 05:30:54,847 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-14 05:30:54,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 05:30:54" (1/2) ... [2021-06-14 05:30:54,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d659cec and model type three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 05:30:54, skipping insertion in model container [2021-06-14 05:30:54,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 05:30:54" (2/2) ... [2021-06-14 05:30:54,850 INFO L111 eAbstractionObserver]: Analyzing ICFG three-array-sum-alt.wvr.bpl [2021-06-14 05:30:54,854 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-14 05:30:54,854 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-14 05:30:54,854 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-14 05:30:54,855 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-14 05:30:54,883 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-14 05:30:54,909 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-14 05:30:54,983 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-14 05:30:54,983 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-14 05:30:54,984 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-14 05:30:54,984 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-14 05:30:54,984 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-14 05:30:54,984 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-14 05:30:54,984 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-14 05:30:54,984 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-14 05:30:55,017 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 05:30:55,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 05:30:55,022 INFO L82 PathProgramCache]: Analyzing trace with hash 606772490, now seen corresponding path program 1 times [2021-06-14 05:30:55,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 05:30:55,029 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374633299] [2021-06-14 05:30:55,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 05:30:55,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:30:55,194 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-14 05:30:55,195 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 05:30:55,195 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374633299] [2021-06-14 05:30:55,196 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374633299] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-14 05:30:55,196 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-14 05:30:55,196 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-14 05:30:55,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016066700] [2021-06-14 05:30:55,200 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-14 05:30:55,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 05:30:55,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-14 05:30:55,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-14 05:30:55,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:30:55,218 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 05:30:55,221 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 05:30:55,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:30:55,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 05:30:55,310 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-14 05:30:55,311 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 05:30:55,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 05:30:55,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1013717064, now seen corresponding path program 1 times [2021-06-14 05:30:55,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 05:30:55,314 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001117893] [2021-06-14 05:30:55,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 05:30:55,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:30:55,444 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:30:55,444 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 05:30:55,445 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001117893] [2021-06-14 05:30:55,445 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001117893] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:30:55,445 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552188087] [2021-06-14 05:30:55,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:30:55,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:30:55,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 20 conjunts are in the unsatisfiable core [2021-06-14 05:30:55,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 05:30:55,717 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 15 treesize of output 11 [2021-06-14 05:30:55,720 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 05:30:55,725 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:30:55,729 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 13 treesize of output 9 [2021-06-14 05:30:55,731 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-14 05:30:55,738 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:30:55,739 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 05:30:55,739 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:5 [2021-06-14 05:30:55,783 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:30:55,783 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552188087] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:30:55,783 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 05:30:55,783 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-06-14 05:30:55,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070675705] [2021-06-14 05:30:55,785 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-14 05:30:55,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 05:30:55,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-14 05:30:55,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-14 05:30:55,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:30:55,786 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 05:30:55,787 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 05:30:55,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 05:30:55,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:30:55,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 05:30:55,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-14 05:30:56,124 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:30:56,125 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 05:30:56,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 05:30:56,126 INFO L82 PathProgramCache]: Analyzing trace with hash -550931606, now seen corresponding path program 2 times [2021-06-14 05:30:56,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 05:30:56,126 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420932545] [2021-06-14 05:30:56,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 05:30:56,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:30:56,178 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:30:56,178 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 05:30:56,178 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420932545] [2021-06-14 05:30:56,179 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420932545] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:30:56,179 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775644009] [2021-06-14 05:30:56,179 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:30:56,228 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-14 05:30:56,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 05:30:56,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-14 05:30:56,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 05:30:56,290 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:30:56,291 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775644009] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:30:56,291 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 05:30:56,291 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-06-14 05:30:56,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143184842] [2021-06-14 05:30:56,292 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-14 05:30:56,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 05:30:56,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-14 05:30:56,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-06-14 05:30:56,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:30:56,293 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 05:30:56,293 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 05:30:56,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 05:30:56,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-14 05:30:56,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:30:56,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 05:30:56,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-14 05:30:56,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-14 05:30:56,596 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:30:56,597 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 05:30:56,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 05:30:56,597 INFO L82 PathProgramCache]: Analyzing trace with hash 309004172, now seen corresponding path program 3 times [2021-06-14 05:30:56,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 05:30:56,598 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333798096] [2021-06-14 05:30:56,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 05:30:56,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:30:56,673 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-14 05:30:56,673 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 05:30:56,673 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333798096] [2021-06-14 05:30:56,673 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333798096] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:30:56,673 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563670988] [2021-06-14 05:30:56,674 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:30:56,711 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-14 05:30:56,712 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 05:30:56,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 6 conjunts are in the unsatisfiable core [2021-06-14 05:30:56,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 05:30:56,777 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-14 05:30:56,777 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563670988] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:30:56,777 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 05:30:56,778 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-06-14 05:30:56,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003918749] [2021-06-14 05:30:56,778 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-14 05:30:56,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 05:30:56,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-14 05:30:56,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-14 05:30:56,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:30:56,781 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 05:30:56,781 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 05:30:56,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 05:30:56,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-14 05:30:56,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-14 05:30:56,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:30:56,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 05:30:56,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-14 05:30:56,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-14 05:30:56,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 05:30:57,157 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:30:57,158 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 05:30:57,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 05:30:57,158 INFO L82 PathProgramCache]: Analyzing trace with hash -325554774, now seen corresponding path program 4 times [2021-06-14 05:30:57,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 05:30:57,159 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986784978] [2021-06-14 05:30:57,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 05:30:57,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:30:57,515 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:30:57,516 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 05:30:57,516 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986784978] [2021-06-14 05:30:57,516 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986784978] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:30:57,516 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758116870] [2021-06-14 05:30:57,516 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:30:57,576 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-14 05:30:57,576 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 05:30:57,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 33 conjunts are in the unsatisfiable core [2021-06-14 05:30:57,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 05:30:57,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-06-14 05:30:57,897 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 05:30:57,912 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:30:57,920 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-14 05:30:57,921 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:68, output treesize:67 [2021-06-14 05:30:58,007 INFO L446 ElimStorePlain]: Different costs {0=[B, v_C_14], 2=[A]} [2021-06-14 05:30:58,010 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 33 treesize of output 25 [2021-06-14 05:30:58,012 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 05:30:58,021 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:30:58,021 INFO L518 ElimStorePlain]: Eliminatee v_C_14 vanished before elimination [2021-06-14 05:30:58,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:30:58,025 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-14 05:30:58,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2021-06-14 05:30:58,029 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-14 05:30:58,035 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:30:58,037 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 05:30:58,038 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:57, output treesize:11 [2021-06-14 05:30:58,060 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:30:58,060 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758116870] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:30:58,061 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 05:30:58,062 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 14 [2021-06-14 05:30:58,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656106301] [2021-06-14 05:30:58,062 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-14 05:30:58,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 05:30:58,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-14 05:30:58,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-06-14 05:30:58,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:30:58,064 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 05:30:58,064 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 14 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 05:30:58,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 05:30:58,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-14 05:30:58,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-14 05:30:58,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 05:30:58,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:30:58,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 05:30:58,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-14 05:30:58,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-14 05:30:58,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 05:30:58,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-14 05:30:58,740 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:30:58,741 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 05:30:58,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 05:30:58,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1166180462, now seen corresponding path program 5 times [2021-06-14 05:30:58,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 05:30:58,742 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157271446] [2021-06-14 05:30:58,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 05:30:58,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:30:58,818 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-14 05:30:58,818 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 05:30:58,818 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157271446] [2021-06-14 05:30:58,818 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157271446] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:30:58,819 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496234946] [2021-06-14 05:30:58,819 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:30:58,873 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-06-14 05:30:58,873 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 05:30:58,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-14 05:30:58,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 05:30:58,947 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-14 05:30:58,948 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496234946] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:30:58,948 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 05:30:58,948 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-06-14 05:30:58,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719646758] [2021-06-14 05:30:58,951 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-14 05:30:58,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 05:30:58,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-14 05:30:58,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-06-14 05:30:58,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:30:58,952 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 05:30:58,952 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 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) [2021-06-14 05:30:58,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 05:30:58,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-14 05:30:58,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-14 05:30:58,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 05:30:58,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-14 05:30:58,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:30:59,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 05:30:59,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-14 05:30:59,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-14 05:30:59,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 05:30:59,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-14 05:30:59,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-14 05:30:59,312 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:30:59,312 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 05:30:59,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 05:30:59,313 INFO L82 PathProgramCache]: Analyzing trace with hash -2055236976, now seen corresponding path program 6 times [2021-06-14 05:30:59,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 05:30:59,313 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531249925] [2021-06-14 05:30:59,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 05:30:59,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:30:59,373 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 4 proven. 19 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-14 05:30:59,373 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 05:30:59,373 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531249925] [2021-06-14 05:30:59,373 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531249925] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:30:59,373 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717388666] [2021-06-14 05:30:59,373 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:30:59,429 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-06-14 05:30:59,430 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 05:30:59,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-14 05:30:59,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 05:30:59,542 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-06-14 05:30:59,543 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717388666] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:30:59,543 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 05:30:59,543 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2021-06-14 05:30:59,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418778034] [2021-06-14 05:30:59,543 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-14 05:30:59,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 05:30:59,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-14 05:30:59,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-06-14 05:30:59,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:30:59,544 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 05:30:59,544 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 12 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 05:30:59,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 05:30:59,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-14 05:30:59,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-14 05:30:59,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 05:30:59,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-14 05:30:59,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-14 05:30:59,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:30:59,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 05:30:59,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-14 05:30:59,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-14 05:30:59,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 05:30:59,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-14 05:30:59,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-14 05:30:59,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 05:31:00,113 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:31:00,113 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 05:31:00,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 05:31:00,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1628712268, now seen corresponding path program 7 times [2021-06-14 05:31:00,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 05:31:00,114 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660801330] [2021-06-14 05:31:00,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 05:31:00,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:31:00,178 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 8 proven. 21 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-06-14 05:31:00,178 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 05:31:00,178 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660801330] [2021-06-14 05:31:00,178 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660801330] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:31:00,178 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994078862] [2021-06-14 05:31:00,178 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:31:00,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:31:00,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-14 05:31:00,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 05:31:00,323 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 13 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-06-14 05:31:00,323 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1994078862] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:31:00,323 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 05:31:00,323 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-06-14 05:31:00,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854546999] [2021-06-14 05:31:00,324 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-14 05:31:00,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 05:31:00,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-14 05:31:00,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-06-14 05:31:00,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:31:00,325 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 05:31:00,325 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 05:31:00,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 05:31:00,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-14 05:31:00,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-14 05:31:00,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 05:31:00,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-14 05:31:00,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-14 05:31:00,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-14 05:31:00,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 05:31:00,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 05:31:00,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-14 05:31:00,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-14 05:31:00,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 05:31:00,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-14 05:31:00,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-14 05:31:00,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 05:31:00,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-14 05:31:00,779 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-06-14 05:31:00,779 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 05:31:00,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 05:31:00,779 INFO L82 PathProgramCache]: Analyzing trace with hash 638557678, now seen corresponding path program 8 times [2021-06-14 05:31:00,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 05:31:00,780 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086013048] [2021-06-14 05:31:00,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 05:31:00,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 05:31:01,390 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 05:31:01,390 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 05:31:01,390 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086013048] [2021-06-14 05:31:01,391 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086013048] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 05:31:01,391 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207431892] [2021-06-14 05:31:01,391 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 05:31:01,439 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-14 05:31:01,439 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 05:31:01,440 WARN L261 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 63 conjunts are in the unsatisfiable core [2021-06-14 05:31:01,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 05:31:01,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-06-14 05:31:01,865 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 05:31:01,881 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:31:01,882 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 05:31:01,882 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:87, output treesize:86 [2021-06-14 05:31:01,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2021-06-14 05:31:01,950 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 05:31:01,966 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:31:01,967 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 05:31:01,967 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:81, output treesize:81 [2021-06-14 05:31:02,059 INFO L354 Elim1Store]: treesize reduction 56, result has 16.4 percent of original size [2021-06-14 05:31:02,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 56 [2021-06-14 05:31:02,061 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 05:31:02,080 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:31:02,081 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 05:31:02,081 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:103, output treesize:108 [2021-06-14 05:31:02,222 INFO L446 ElimStorePlain]: Different costs {2=[v_C_18], 9=[A, B]} [2021-06-14 05:31:02,230 INFO L354 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2021-06-14 05:31:02,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 72 treesize of output 52 [2021-06-14 05:31:02,231 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 05:31:02,244 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:31:02,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:31:02,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:31:02,288 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:31:02,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 62 treesize of output 98 [2021-06-14 05:31:02,405 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-06-14 05:31:02,514 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 46 [2021-06-14 05:31:02,515 INFO L628 ElimStorePlain]: treesize reduction 422, result has 24.1 percent of original size [2021-06-14 05:31:02,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:31:02,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 05:31:02,559 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 05:31:02,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 123 treesize of output 137