/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-10 02:39:12,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-10 02:39:12,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-10 02:39:12,037 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-10 02:39:12,084 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe.epf [2021-07-10 02:39:12,121 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-10 02:39:12,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-10 02:39:12,122 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-10 02:39:12,122 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-10 02:39:12,124 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-10 02:39:12,124 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-10 02:39:12,124 INFO L138 SettingsManager]: * Use SBE=true [2021-07-10 02:39:12,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-10 02:39:12,125 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-10 02:39:12,125 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-10 02:39:12,125 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-10 02:39:12,126 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-10 02:39:12,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-10 02:39:12,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-10 02:39:12,126 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-10 02:39:12,126 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-10 02:39:12,126 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-10 02:39:12,126 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-10 02:39:12,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-10 02:39:12,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-10 02:39:12,126 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-10 02:39:12,127 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-10 02:39:12,127 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-10 02:39:12,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 02:39:12,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-10 02:39:12,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-10 02:39:12,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-10 02:39:12,127 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-10 02:39:12,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-10 02:39:12,127 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-10 02:39:12,127 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-10 02:39:12,128 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-10 02:39:12,128 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-10 02:39:12,128 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-10 02:39:12,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-10 02:39:12,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-10 02:39:12,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-10 02:39:12,401 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-10 02:39:12,402 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-10 02:39:12,403 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl [2021-07-10 02:39:12,403 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl' [2021-07-10 02:39:12,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-10 02:39:12,435 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-10 02:39:12,437 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-10 02:39:12,437 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-10 02:39:12,437 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-10 02:39:12,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:39:12" (1/1) ... [2021-07-10 02:39:12,452 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:39:12" (1/1) ... [2021-07-10 02:39:12,458 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-10 02:39:12,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-10 02:39:12,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-10 02:39:12,460 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-10 02:39:12,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:39:12" (1/1) ... [2021-07-10 02:39:12,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:39:12" (1/1) ... [2021-07-10 02:39:12,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:39:12" (1/1) ... [2021-07-10 02:39:12,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:39:12" (1/1) ... [2021-07-10 02:39:12,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:39:12" (1/1) ... [2021-07-10 02:39:12,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:39:12" (1/1) ... [2021-07-10 02:39:12,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:39:12" (1/1) ... [2021-07-10 02:39:12,471 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-10 02:39:12,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-10 02:39:12,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-10 02:39:12,472 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-10 02:39:12,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:39:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 02:39:12,542 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-10 02:39:12,542 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-10 02:39:12,542 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-10 02:39:12,542 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-10 02:39:12,542 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-10 02:39:12,542 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-10 02:39:12,543 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-10 02:39:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-10 02:39:12,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-10 02:39:12,543 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-10 02:39:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-10 02:39:12,543 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-10 02:39:12,544 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-10 02:39:12,690 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-10 02:39:12,691 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-10 02:39:12,692 INFO L202 PluginConnector]: Adding new model sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 02:39:12 BoogieIcfgContainer [2021-07-10 02:39:12,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-10 02:39:12,693 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-10 02:39:12,693 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-10 02:39:12,695 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-10 02:39:12,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:39:12" (1/2) ... [2021-07-10 02:39:12,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@398d93d3 and model type sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 02:39:12, skipping insertion in model container [2021-07-10 02:39:12,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 02:39:12" (2/2) ... [2021-07-10 02:39:12,697 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-fun.wvr.bpl [2021-07-10 02:39:12,700 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-10 02:39:12,701 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-10 02:39:12,701 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-10 02:39:12,701 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-10 02:39:12,726 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-10 02:39:12,742 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-10 02:39:12,775 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-10 02:39:12,775 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-10 02:39:12,775 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-10 02:39:12,775 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-10 02:39:12,776 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-10 02:39:12,776 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-10 02:39:12,776 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-10 02:39:12,776 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-10 02:39:12,828 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:39:12,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:39:12,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1762402312, now seen corresponding path program 1 times [2021-07-10 02:39:12,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:39:12,837 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057750677] [2021-07-10 02:39:12,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:39:12,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:39:13,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:39:13,016 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:39:13,016 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057750677] [2021-07-10 02:39:13,016 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057750677] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 02:39:13,016 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 02:39:13,016 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-10 02:39:13,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339425237] [2021-07-10 02:39:13,020 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-10 02:39:13,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:39:13,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-10 02:39:13,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-07-10 02:39:13,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:39:13,032 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:39:13,041 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 02:39:13,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:39:13,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 02:39:13,124 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-10 02:39:13,125 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:39:13,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:39:13,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1272455018, now seen corresponding path program 1 times [2021-07-10 02:39:13,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:39:13,126 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427577606] [2021-07-10 02:39:13,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:39:13,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:39:13,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 02:39:13,158 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:39:13,158 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427577606] [2021-07-10 02:39:13,158 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427577606] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 02:39:13,158 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 02:39:13,158 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-10 02:39:13,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595749387] [2021-07-10 02:39:13,164 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-10 02:39:13,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:39:13,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-10 02:39:13,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-10 02:39:13,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:39:13,166 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:39:13,166 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 02:39:13,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 02:39:13,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:39:13,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 02:39:13,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:39:13,195 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-10 02:39:13,196 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:39:13,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:39:13,196 INFO L82 PathProgramCache]: Analyzing trace with hash 1673281716, now seen corresponding path program 1 times [2021-07-10 02:39:13,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:39:13,196 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175110898] [2021-07-10 02:39:13,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:39:13,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:39:13,437 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:39:13,437 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:39:13,437 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175110898] [2021-07-10 02:39:13,438 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175110898] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:39:13,438 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110425246] [2021-07-10 02:39:13,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 02:39:13,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:39:13,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 19 conjunts are in the unsatisfiable core [2021-07-10 02:39:13,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 02:39:13,723 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 02:39:13,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-07-10 02:39:13,730 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 02:39:13,734 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 02:39:13,738 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 02:39:13,738 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:7 [2021-07-10 02:39:13,770 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:39:13,770 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110425246] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:39:13,771 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 02:39:13,771 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-07-10 02:39:13,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543035377] [2021-07-10 02:39:13,772 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-10 02:39:13,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:39:13,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-10 02:39:13,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-07-10 02:39:13,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:39:13,777 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:39:13,777 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 02:39:13,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 02:39:13,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:39:13,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:39:13,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 02:39:13,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:39:13,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:39:14,149 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 02:39:14,150 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:39:14,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:39:14,151 INFO L82 PathProgramCache]: Analyzing trace with hash -811417006, now seen corresponding path program 2 times [2021-07-10 02:39:14,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:39:14,151 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848465883] [2021-07-10 02:39:14,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:39:14,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:39:14,239 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:39:14,239 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:39:14,240 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848465883] [2021-07-10 02:39:14,240 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848465883] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:39:14,240 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273387424] [2021-07-10 02:39:14,240 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 02:39:14,322 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 02:39:14,323 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 02:39:14,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-10 02:39:14,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 02:39:14,408 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:39:14,408 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [273387424] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:39:14,409 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 02:39:14,409 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-07-10 02:39:14,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440153514] [2021-07-10 02:39:14,409 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-10 02:39:14,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:39:14,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-10 02:39:14,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-07-10 02:39:14,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:39:14,410 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:39:14,410 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 02:39:14,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 02:39:14,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:39:14,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:39:14,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:39:14,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 02:39:14,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:39:14,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:39:14,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:39:14,785 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 02:39:14,785 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:39:14,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:39:14,786 INFO L82 PathProgramCache]: Analyzing trace with hash 186541582, now seen corresponding path program 1 times [2021-07-10 02:39:14,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:39:14,786 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870928881] [2021-07-10 02:39:14,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:39:14,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:39:14,830 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 02:39:14,830 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:39:14,830 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870928881] [2021-07-10 02:39:14,831 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870928881] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:39:14,831 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501911395] [2021-07-10 02:39:14,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 02:39:14,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:39:14,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-10 02:39:14,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 02:39:14,945 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 02:39:14,945 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501911395] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:39:14,946 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 02:39:14,946 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-07-10 02:39:14,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790941857] [2021-07-10 02:39:14,946 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-10 02:39:14,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:39:14,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-10 02:39:14,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-07-10 02:39:14,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:39:14,947 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:39:14,947 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 02:39:14,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 02:39:14,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:39:14,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:39:14,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:39:14,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:39:15,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 02:39:15,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:39:15,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:39:15,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:39:15,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 02:39:15,245 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 02:39:15,245 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:39:15,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:39:15,246 INFO L82 PathProgramCache]: Analyzing trace with hash 477673772, now seen corresponding path program 2 times [2021-07-10 02:39:15,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:39:15,246 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016477406] [2021-07-10 02:39:15,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:39:15,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:39:15,610 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:39:15,610 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:39:15,610 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016477406] [2021-07-10 02:39:15,611 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016477406] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:39:15,611 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459616091] [2021-07-10 02:39:15,611 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 02:39:15,691 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 02:39:15,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 02:39:15,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 34 conjunts are in the unsatisfiable core [2021-07-10 02:39:15,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 02:39:15,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:39:15,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:39:15,984 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 02:39:15,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2021-07-10 02:39:15,986 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 02:39:15,990 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 02:39:15,991 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 02:39:15,991 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:33, output treesize:5 [2021-07-10 02:39:16,021 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:39:16,022 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459616091] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:39:16,022 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 02:39:16,022 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 22 [2021-07-10 02:39:16,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422769949] [2021-07-10 02:39:16,022 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-07-10 02:39:16,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:39:16,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-07-10 02:39:16,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2021-07-10 02:39:16,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:39:16,023 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:39:16,023 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.3636363636363638) internal successors, (52), 22 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 02:39:16,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 02:39:16,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:39:16,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:39:16,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:39:16,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 02:39:16,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:39:16,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 02:39:16,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:39:16,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:39:16,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:39:16,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 02:39:16,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 02:39:17,041 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-07-10 02:39:17,041 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:39:17,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:39:17,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1082834122, now seen corresponding path program 3 times [2021-07-10 02:39:17,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:39:17,042 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222204815] [2021-07-10 02:39:17,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:39:17,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:39:17,112 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:39:17,113 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:39:17,113 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222204815] [2021-07-10 02:39:17,113 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222204815] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:39:17,113 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55577973] [2021-07-10 02:39:17,113 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 02:39:17,142 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-07-10 02:39:17,142 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 02:39:17,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-10 02:39:17,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 02:39:17,305 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:39:17,305 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55577973] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:39:17,305 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 02:39:17,305 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-07-10 02:39:17,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194340615] [2021-07-10 02:39:17,305 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-10 02:39:17,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:39:17,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-10 02:39:17,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-07-10 02:39:17,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:39:17,306 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:39:17,306 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.6) internal successors, (52), 20 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 02:39:17,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 02:39:17,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:39:17,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:39:17,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:39:17,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 02:39:17,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 02:39:17,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:39:17,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 02:39:17,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:39:17,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:39:17,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:39:17,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 02:39:17,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 02:39:17,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 02:39:17,976 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 02:39:17,977 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:39:17,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:39:17,977 INFO L82 PathProgramCache]: Analyzing trace with hash 2048156806, now seen corresponding path program 4 times [2021-07-10 02:39:17,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:39:17,977 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70109963] [2021-07-10 02:39:17,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:39:17,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:39:18,050 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 02:39:18,051 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:39:18,051 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70109963] [2021-07-10 02:39:18,051 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70109963] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:39:18,051 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470159082] [2021-07-10 02:39:18,051 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 02:39:18,167 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 02:39:18,167 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 02:39:18,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-10 02:39:18,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 02:39:18,278 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 02:39:18,279 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470159082] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:39:18,279 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 02:39:18,279 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-07-10 02:39:18,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011209856] [2021-07-10 02:39:18,279 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 02:39:18,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:39:18,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 02:39:18,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-07-10 02:39:18,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:39:18,280 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:39:18,280 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 17 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 02:39:18,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 02:39:18,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:39:18,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:39:18,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:39:18,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 02:39:18,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 02:39:18,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 02:39:18,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:39:18,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 02:39:18,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:39:18,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:39:18,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:39:18,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 02:39:18,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 02:39:18,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 02:39:18,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 02:39:18,647 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 02:39:18,648 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:39:18,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:39:18,648 INFO L82 PathProgramCache]: Analyzing trace with hash 561035684, now seen corresponding path program 5 times [2021-07-10 02:39:18,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:39:18,648 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419240159] [2021-07-10 02:39:18,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:39:18,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:39:19,084 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:39:19,084 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:39:19,084 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419240159] [2021-07-10 02:39:19,084 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419240159] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:39:19,084 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1904454994] [2021-07-10 02:39:19,084 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 02:39:19,117 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-07-10 02:39:19,117 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 02:39:19,118 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 50 conjunts are in the unsatisfiable core [2021-07-10 02:39:19,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 02:39:19,792 INFO L354 Elim1Store]: treesize reduction 118, result has 2.5 percent of original size [2021-07-10 02:39:19,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 121 treesize of output 73 [2021-07-10 02:39:19,796 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 02:39:19,801 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 02:39:19,803 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 02:39:19,803 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:126, output treesize:5 [2021-07-10 02:39:19,829 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:39:19,829 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1904454994] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:39:19,829 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 02:39:19,829 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 31 [2021-07-10 02:39:19,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641751894] [2021-07-10 02:39:19,830 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-07-10 02:39:19,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:39:19,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-07-10 02:39:19,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=847, Unknown=0, NotChecked=0, Total=930 [2021-07-10 02:39:19,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:39:19,831 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:39:19,831 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 2.193548387096774) internal successors, (68), 31 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 02:39:19,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 02:39:19,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:39:19,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:39:19,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:39:19,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 02:39:19,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 02:39:19,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 02:39:19,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 02:39:19,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:39:21,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 02:39:21,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:39:21,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:39:21,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:39:21,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 02:39:21,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 02:39:21,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 02:39:21,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 02:39:21,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 02:39:21,824 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-07-10 02:39:21,825 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:39:21,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:39:21,825 INFO L82 PathProgramCache]: Analyzing trace with hash -352082848, now seen corresponding path program 6 times [2021-07-10 02:39:21,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:39:21,825 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886855176] [2021-07-10 02:39:21,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:39:21,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:39:22,386 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:39:22,387 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:39:22,387 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886855176] [2021-07-10 02:39:22,387 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886855176] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:39:22,387 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787431645] [2021-07-10 02:39:22,387 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 02:39:22,421 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-07-10 02:39:22,422 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 02:39:22,423 WARN L261 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 60 conjunts are in the unsatisfiable core [2021-07-10 02:39:22,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 02:39:23,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:39:23,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:39:23,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:39:23,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:39:23,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:39:23,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:39:23,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:39:23,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:39:23,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:39:23,652 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-07-10 02:39:23,652 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 02:39:23,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 12 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 24 case distinctions, treesize of input 52 treesize of output 246 [2021-07-10 02:39:24,062 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 820 DAG size of output: 575 [2021-07-10 02:39:24,323 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 836 DAG size of output: 590 [2021-07-10 02:39:24,837 WARN L205 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 587 [2021-07-10 02:39:25,022 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 547 DAG size of output: 547 [2021-07-10 02:39:25,343 WARN L205 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 476 DAG size of output: 546 [2021-07-10 02:39:25,628 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 472 DAG size of output: 511 [2021-07-10 02:39:27,149 WARN L205 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 1619 DAG size of output: 1183 [2021-07-10 02:39:28,128 WARN L205 SmtUtils]: Spent 969.00 ms on a formula simplification. DAG size of input: 1840 DAG size of output: 1339 [2021-07-10 02:39:28,732 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 504 DAG size of output: 375 [2021-07-10 02:39:28,919 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 589 DAG size of output: 432 [2021-07-10 02:39:30,186 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 2145 DAG size of output: 1563 [2021-07-10 02:39:31,939 WARN L205 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 2369 DAG size of output: 1754 [2021-07-10 02:39:33,686 WARN L205 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 2369 DAG size of output: 1754 [2021-07-10 02:39:35,475 WARN L205 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 2375 DAG size of output: 1760 [2021-07-10 02:39:35,659 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 454 DAG size of output: 451 [2021-07-10 02:39:36,087 WARN L205 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 453 DAG size of output: 525 [2021-07-10 02:39:36,505 WARN L205 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 449 DAG size of output: 555 [2021-07-10 02:39:36,682 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 443 DAG size of output: 443 [2021-07-10 02:39:36,795 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 379 DAG size of output: 379 [2021-07-10 02:39:37,709 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 287 [2021-07-10 02:39:38,220 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 900 DAG size of output: 770 [2021-07-10 02:39:38,569 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 1209 DAG size of output: 1030 [2021-07-10 02:39:39,114 WARN L205 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 1597 DAG size of output: 1392 [2021-07-10 02:39:39,740 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 601 DAG size of output: 577 [2021-07-10 02:39:40,615 WARN L205 SmtUtils]: Spent 869.00 ms on a formula simplification. DAG size of input: 1891 DAG size of output: 1677 [2021-07-10 02:39:41,864 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 2187 DAG size of output: 1937 [2021-07-10 02:39:43,546 WARN L205 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 2352 DAG size of output: 2094 [2021-07-10 02:39:45,238 WARN L205 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 2352 DAG size of output: 2094 [2021-07-10 02:39:46,970 WARN L205 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 2359 DAG size of output: 2101 [2021-07-10 02:39:48,204 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 1883 DAG size of output: 1893 [2021-07-10 02:39:48,352 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 376 DAG size of output: 376 [2021-07-10 02:39:48,889 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 379 DAG size of output: 337 [2021-07-10 02:39:49,853 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 729 DAG size of output: 688 [2021-07-10 02:39:50,149 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 789 DAG size of output: 748 [2021-07-10 02:39:50,738 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 362 DAG size of output: 366 [2021-07-10 02:39:51,266 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 615 DAG size of output: 590 [2021-07-10 02:39:52,617 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 892 DAG size of output: 787 [2021-07-10 02:39:53,390 WARN L205 SmtUtils]: Spent 768.00 ms on a formula simplification. DAG size of input: 1380 DAG size of output: 1254 [2021-07-10 02:39:54,586 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 2021 DAG size of output: 1861 [2021-07-10 02:39:55,271 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 512 DAG size of output: 411 [2021-07-10 02:39:55,409 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 512 DAG size of output: 411 [2021-07-10 02:39:55,646 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 516 DAG size of output: 415 [2021-07-10 02:39:57,023 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 578 DAG size of output: 555 [2021-07-10 02:39:57,231 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 765 DAG size of output: 742 [2021-07-10 02:39:57,586 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 940 DAG size of output: 904 [2021-07-10 02:39:58,360 WARN L205 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 1160 DAG size of output: 1097 [2021-07-10 02:40:00,403 WARN L205 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 2857 DAG size of output: 2640 [2021-07-10 02:40:01,251 WARN L205 SmtUtils]: Spent 831.00 ms on a formula simplification. DAG size of input: 1639 DAG size of output: 1649 [2021-07-10 02:40:01,806 WARN L205 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 1362 DAG size of output: 1371 [2021-07-10 02:53:49,037 WARN L205 SmtUtils]: Spent 6.54 m on a formula simplification. DAG size of input: 45424 DAG size of output: 44677 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown