/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/nzb-file-symm.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-06 15:35:33,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-06 15:35:33,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-06 15:35:33,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-06 15:35:33,079 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-06 15:35:33,080 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-06 15:35:33,081 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-06 15:35:33,082 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-06 15:35:33,083 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-06 15:35:33,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-06 15:35:33,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-06 15:35:33,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-06 15:35:33,087 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-06 15:35:33,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-06 15:35:33,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-06 15:35:33,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-06 15:35:33,093 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-06 15:35:33,101 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random42.epf [2021-06-06 15:35:33,134 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-06 15:35:33,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-06 15:35:33,136 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-06 15:35:33,136 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-06 15:35:33,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-06 15:35:33,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-06 15:35:33,138 INFO L138 SettingsManager]: * Use SBE=true [2021-06-06 15:35:33,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-06 15:35:33,138 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-06 15:35:33,138 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-06 15:35:33,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-06 15:35:33,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-06 15:35:33,139 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-06 15:35:33,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-06 15:35:33,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-06 15:35:33,140 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-06 15:35:33,140 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-06 15:35:33,140 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-06 15:35:33,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-06 15:35:33,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-06 15:35:33,140 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-06 15:35:33,140 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-06 15:35:33,141 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-06 15:35:33,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 15:35:33,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-06 15:35:33,141 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-06 15:35:33,141 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-06 15:35:33,141 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-06 15:35:33,141 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-06 15:35:33,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-06 15:35:33,142 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-06 15:35:33,142 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-06 15:35:33,142 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-06 15:35:33,142 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-06 15:35:33,142 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-06 15:35:33,142 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-06 15:35:33,450 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-06 15:35:33,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-06 15:35:33,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-06 15:35:33,473 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-06 15:35:33,475 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-06 15:35:33,475 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/nzb-file-symm.wvr.bpl [2021-06-06 15:35:33,476 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/nzb-file-symm.wvr.bpl' [2021-06-06 15:35:33,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-06 15:35:33,503 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-06 15:35:33,503 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-06 15:35:33,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-06 15:35:33,504 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-06 15:35:33,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 03:35:33" (1/1) ... [2021-06-06 15:35:33,523 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 03:35:33" (1/1) ... [2021-06-06 15:35:33,534 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-06 15:35:33,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-06 15:35:33,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-06 15:35:33,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-06 15:35:33,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 03:35:33" (1/1) ... [2021-06-06 15:35:33,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 03:35:33" (1/1) ... [2021-06-06 15:35:33,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 03:35:33" (1/1) ... [2021-06-06 15:35:33,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 03:35:33" (1/1) ... [2021-06-06 15:35:33,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 03:35:33" (1/1) ... [2021-06-06 15:35:33,548 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 03:35:33" (1/1) ... [2021-06-06 15:35:33,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 03:35:33" (1/1) ... [2021-06-06 15:35:33,550 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-06 15:35:33,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-06 15:35:33,551 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-06 15:35:33,551 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-06 15:35:33,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 03:35:33" (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 [2021-06-06 15:35:33,616 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-06 15:35:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-06 15:35:33,616 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-06 15:35:33,617 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-06 15:35:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-06 15:35:33,617 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-06 15:35:33,617 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-06 15:35:33,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-06 15:35:33,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-06 15:35:33,620 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-06 15:35:34,167 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-06 15:35:34,167 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-06-06 15:35:34,168 INFO L202 PluginConnector]: Adding new model nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 03:35:34 BoogieIcfgContainer [2021-06-06 15:35:34,169 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-06 15:35:34,170 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-06 15:35:34,170 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-06 15:35:34,172 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-06 15:35:34,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 03:35:33" (1/2) ... [2021-06-06 15:35:34,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f7eecb1 and model type nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.06 03:35:34, skipping insertion in model container [2021-06-06 15:35:34,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 03:35:34" (2/2) ... [2021-06-06 15:35:34,174 INFO L111 eAbstractionObserver]: Analyzing ICFG nzb-file-symm.wvr.bpl [2021-06-06 15:35:34,178 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-06 15:35:34,179 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-06 15:35:34,179 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-06 15:35:34,179 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-06 15:35:34,231 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-06 15:35:34,251 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 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 [2021-06-06 15:35:34,303 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-06 15:35:34,303 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-06 15:35:34,303 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-06 15:35:34,303 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-06 15:35:34,303 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-06 15:35:34,303 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-06 15:35:34,304 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-06 15:35:34,304 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-06 15:35:34,326 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 15:35:34,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 15:35:34,330 INFO L82 PathProgramCache]: Analyzing trace with hash -1320275186, now seen corresponding path program 1 times [2021-06-06 15:35:34,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 15:35:34,337 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311988654] [2021-06-06 15:35:34,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 15:35:34,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 15:35:34,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 15:35:34,466 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 15:35:34,466 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311988654] [2021-06-06 15:35:34,467 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311988654] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 15:35:34,467 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 15:35:34,467 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-06 15:35:34,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380360008] [2021-06-06 15:35:34,475 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-06 15:35:34,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 15:35:34,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-06 15:35:34,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-06 15:35:34,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 15:35:34,491 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 15:35:34,493 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2021-06-06 15:35:34,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 15:35:34,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:34,511 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-06 15:35:34,511 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 15:35:34,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 15:35:34,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1994143768, now seen corresponding path program 1 times [2021-06-06 15:35:34,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 15:35:34,516 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283516972] [2021-06-06 15:35:34,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 15:35:34,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 15:35:34,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 15:35:34,582 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 15:35:34,583 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283516972] [2021-06-06 15:35:34,583 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283516972] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 15:35:34,583 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 15:35:34,583 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-06 15:35:34,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577763561] [2021-06-06 15:35:34,584 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-06 15:35:34,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 15:35:34,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-06 15:35:34,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-06 15:35:34,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 15:35:34,586 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 15:35:34,586 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2021-06-06 15:35:34,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:34,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 15:35:34,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:34,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:34,598 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-06 15:35:34,598 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 15:35:34,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 15:35:34,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1169398602, now seen corresponding path program 1 times [2021-06-06 15:35:34,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 15:35:34,600 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455765222] [2021-06-06 15:35:34,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 15:35:34,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 15:35:34,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 15:35:34,805 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 15:35:34,805 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455765222] [2021-06-06 15:35:34,805 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455765222] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 15:35:34,805 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 15:35:34,806 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-06 15:35:34,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508223899] [2021-06-06 15:35:34,806 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-06 15:35:34,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 15:35:34,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-06 15:35:34,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-06 15:35:34,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 15:35:34,807 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 15:35:34,807 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-06-06 15:35:34,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:34,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:34,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 15:35:34,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:34,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:34,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 15:35:34,916 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-06 15:35:34,916 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 15:35:34,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 15:35:34,917 INFO L82 PathProgramCache]: Analyzing trace with hash 563939439, now seen corresponding path program 1 times [2021-06-06 15:35:34,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 15:35:34,918 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813693865] [2021-06-06 15:35:34,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 15:35:34,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 15:35:34,948 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 15:35:34,949 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 15:35:34,949 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813693865] [2021-06-06 15:35:34,950 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813693865] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 15:35:34,950 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 15:35:34,950 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-06 15:35:34,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510059516] [2021-06-06 15:35:34,951 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-06 15:35:34,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 15:35:34,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-06 15:35:34,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-06 15:35:34,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 15:35:34,952 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 15:35:34,952 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2021-06-06 15:35:34,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:34,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:34,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 15:35:34,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 15:35:34,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:34,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:34,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 15:35:34,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:34,973 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-06 15:35:34,973 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 15:35:34,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 15:35:34,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1080887238, now seen corresponding path program 1 times [2021-06-06 15:35:34,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 15:35:34,976 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142227428] [2021-06-06 15:35:34,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 15:35:35,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 15:35:35,228 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 15:35:35,228 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 15:35:35,228 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142227428] [2021-06-06 15:35:35,229 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142227428] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 15:35:35,229 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930641431] [2021-06-06 15:35:35,229 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 [2021-06-06 15:35:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 15:35:35,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-06 15:35:35,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 15:35:35,794 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 15:35:35,795 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930641431] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 15:35:35,795 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 15:35:35,795 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-06-06 15:35:35,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431570484] [2021-06-06 15:35:35,795 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-06 15:35:35,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 15:35:35,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-06 15:35:35,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-06-06 15:35:35,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 15:35:35,797 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 15:35:35,797 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 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) [2021-06-06 15:35:35,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:35,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:35,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 15:35:35,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:35,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 15:35:35,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:35,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:35,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 15:35:35,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:35,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:36,209 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 15:35:36,209 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 15:35:36,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 15:35:36,210 INFO L82 PathProgramCache]: Analyzing trace with hash -530906673, now seen corresponding path program 2 times [2021-06-06 15:35:36,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 15:35:36,210 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489128552] [2021-06-06 15:35:36,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 15:35:36,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 15:35:36,287 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 15:35:36,287 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 15:35:36,287 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489128552] [2021-06-06 15:35:36,287 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489128552] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 15:35:36,287 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696479627] [2021-06-06 15:35:36,288 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 [2021-06-06 15:35:36,330 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 15:35:36,330 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 15:35:36,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-06 15:35:36,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 15:35:36,409 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 15:35:36,410 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696479627] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 15:35:36,410 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 15:35:36,410 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-06-06 15:35:36,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539746101] [2021-06-06 15:35:36,411 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-06 15:35:36,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 15:35:36,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-06 15:35:36,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-06 15:35:36,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 15:35:36,413 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 15:35:36,413 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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) [2021-06-06 15:35:36,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:36,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:36,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 15:35:36,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:36,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:36,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 15:35:36,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:36,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:36,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 15:35:36,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:36,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:36,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 15:35:36,693 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-06-06 15:35:36,693 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 15:35:36,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 15:35:36,694 INFO L82 PathProgramCache]: Analyzing trace with hash 694763895, now seen corresponding path program 3 times [2021-06-06 15:35:36,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 15:35:36,694 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852817615] [2021-06-06 15:35:36,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 15:35:36,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 15:35:36,964 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 15:35:36,964 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 15:35:36,965 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852817615] [2021-06-06 15:35:36,965 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852817615] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 15:35:36,965 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874227729] [2021-06-06 15:35:36,965 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 [2021-06-06 15:35:37,015 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-06 15:35:37,016 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 15:35:37,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 28 conjunts are in the unsatisfiable core [2021-06-06 15:35:37,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 15:35:38,452 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 15:35:38,453 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 15:35:38,462 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 2 [2021-06-06 15:35:38,463 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 15:35:38,475 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-06-06 15:35:38,475 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-06 15:35:38,479 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 15:35:38,480 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 15:35:38,480 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 10 treesize of output 1 [2021-06-06 15:35:38,481 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-06 15:35:38,484 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-06-06 15:35:38,484 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-06 15:35:38,488 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 15:35:38,488 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 10 treesize of output 1 [2021-06-06 15:35:38,489 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-06 15:35:38,542 INFO L628 ElimStorePlain]: treesize reduction 90, result has 37.1 percent of original size [2021-06-06 15:35:38,545 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 4 treesize of output 2 [2021-06-06 15:35:38,546 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-06 15:35:38,570 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 15:35:38,575 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-06-06 15:35:38,575 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 2 variables, input treesize:246, output treesize:49 [2021-06-06 15:35:38,684 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 15:35:38,684 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874227729] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 15:35:38,684 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 15:35:38,684 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2021-06-06 15:35:38,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138584258] [2021-06-06 15:35:38,685 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-06 15:35:38,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 15:35:38,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-06 15:35:38,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-06-06 15:35:38,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 15:35:38,688 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 15:35:38,688 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 1.75) internal successors, (28), 16 states have internal predecessors, (28), 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) [2021-06-06 15:35:38,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:38,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:38,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 15:35:38,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:38,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:38,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 15:35:38,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 15:35:38,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:38,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:38,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 15:35:38,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:38,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:38,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 15:35:38,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 15:35:39,047 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 15:35:39,047 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 15:35:39,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 15:35:39,048 INFO L82 PathProgramCache]: Analyzing trace with hash 945109452, now seen corresponding path program 4 times [2021-06-06 15:35:39,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 15:35:39,048 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956080027] [2021-06-06 15:35:39,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 15:35:39,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 15:35:39,145 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 15:35:39,145 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 15:35:39,145 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956080027] [2021-06-06 15:35:39,145 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956080027] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 15:35:39,145 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1187994844] [2021-06-06 15:35:39,145 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 [2021-06-06 15:35:39,184 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 15:35:39,185 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 15:35:39,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-06 15:35:39,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 15:35:39,270 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 15:35:39,270 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1187994844] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 15:35:39,270 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 15:35:39,270 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2021-06-06 15:35:39,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045396818] [2021-06-06 15:35:39,271 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-06 15:35:39,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 15:35:39,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-06 15:35:39,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-06-06 15:35:39,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 15:35:39,272 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 15:35:39,272 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 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) [2021-06-06 15:35:39,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:39,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:39,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 15:35:39,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:39,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:39,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 15:35:39,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 15:35:39,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 15:35:39,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:39,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:39,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 15:35:39,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:39,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:39,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 15:35:39,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 15:35:39,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 15:35:39,588 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable160 [2021-06-06 15:35:39,589 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 15:35:39,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 15:35:39,589 INFO L82 PathProgramCache]: Analyzing trace with hash -793376486, now seen corresponding path program 5 times [2021-06-06 15:35:39,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 15:35:39,589 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545195212] [2021-06-06 15:35:39,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 15:35:39,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 15:35:39,862 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 15:35:39,862 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 15:35:39,862 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545195212] [2021-06-06 15:35:39,862 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545195212] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 15:35:39,862 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613659841] [2021-06-06 15:35:39,862 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 [2021-06-06 15:35:39,905 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-06-06 15:35:39,905 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 15:35:39,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 33 conjunts are in the unsatisfiable core [2021-06-06 15:35:39,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 15:35:40,597 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 15:35:40,598 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 15:35:40,599 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 2 [2021-06-06 15:35:40,600 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 15:35:40,604 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-06-06 15:35:40,604 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-06 15:35:40,608 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-06-06 15:35:40,609 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-06 15:35:40,612 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 15:35:40,612 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 15:35:40,612 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 10 treesize of output 1 [2021-06-06 15:35:40,613 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-06 15:35:40,616 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-06-06 15:35:40,617 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-06 15:35:40,685 INFO L628 ElimStorePlain]: treesize reduction 138, result has 31.0 percent of original size [2021-06-06 15:35:40,688 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 6 treesize of output 2 [2021-06-06 15:35:40,689 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-06 15:35:40,713 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 15:35:40,717 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 5 treesize of output 1 [2021-06-06 15:35:40,718 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-06 15:35:40,741 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 15:35:40,744 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 5 treesize of output 1 [2021-06-06 15:35:40,746 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-06 15:35:40,768 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 15:35:40,769 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-06-06 15:35:40,769 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:356, output treesize:46 [2021-06-06 15:35:40,874 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 15:35:40,874 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613659841] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 15:35:40,874 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 15:35:40,874 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 19 [2021-06-06 15:35:40,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839481334] [2021-06-06 15:35:40,875 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-06 15:35:40,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 15:35:40,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-06 15:35:40,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-06-06 15:35:40,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 15:35:40,876 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 15:35:40,877 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.631578947368421) internal successors, (31), 19 states have internal predecessors, (31), 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) [2021-06-06 15:35:40,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:40,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:40,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 15:35:40,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:40,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:40,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 15:35:40,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 15:35:40,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 15:35:40,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 15:35:41,262 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-06-06 15:35:41,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:41,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:41,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 15:35:41,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:41,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:41,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 15:35:41,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 15:35:41,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 15:35:41,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:41,488 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 15:35:41,489 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 15:35:41,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 15:35:41,489 INFO L82 PathProgramCache]: Analyzing trace with hash -729464785, now seen corresponding path program 6 times [2021-06-06 15:35:41,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 15:35:41,489 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570723403] [2021-06-06 15:35:41,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 15:35:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 15:35:41,596 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 15:35:41,596 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 15:35:41,596 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570723403] [2021-06-06 15:35:41,597 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570723403] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 15:35:41,597 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906890469] [2021-06-06 15:35:41,597 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 [2021-06-06 15:35:41,639 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-06-06 15:35:41,639 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 15:35:41,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 21 conjunts are in the unsatisfiable core [2021-06-06 15:35:41,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 15:35:41,721 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 15:35:41,722 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [906890469] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 15:35:41,722 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 15:35:41,722 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2021-06-06 15:35:41,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116333431] [2021-06-06 15:35:41,722 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-06 15:35:41,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 15:35:41,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-06 15:35:41,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-06-06 15:35:41,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 15:35:41,723 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 15:35:41,723 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 13 states have internal predecessors, (22), 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) [2021-06-06 15:35:41,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:41,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:41,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 15:35:41,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:41,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:41,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 15:35:41,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 15:35:41,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 15:35:41,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:41,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 15:35:41,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:41,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:41,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 15:35:41,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:41,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:41,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 15:35:41,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 15:35:41,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 15:35:41,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:41,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 15:35:42,057 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable256 [2021-06-06 15:35:42,058 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 15:35:42,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 15:35:42,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1165570281, now seen corresponding path program 7 times [2021-06-06 15:35:42,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 15:35:42,058 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401203072] [2021-06-06 15:35:42,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 15:35:42,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 15:35:42,335 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 15:35:42,335 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 15:35:42,335 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401203072] [2021-06-06 15:35:42,335 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401203072] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 15:35:42,335 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296881604] [2021-06-06 15:35:42,335 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 [2021-06-06 15:35:42,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 15:35:42,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 37 conjunts are in the unsatisfiable core [2021-06-06 15:35:42,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 15:35:43,366 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 15:35:43,367 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 15:35:43,367 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 10 treesize of output 1 [2021-06-06 15:35:43,368 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 15:35:43,372 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-06-06 15:35:43,372 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-06 15:35:43,376 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 15:35:43,376 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 15:35:43,377 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 2 [2021-06-06 15:35:43,378 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-06 15:35:43,381 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-06-06 15:35:43,381 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-06 15:35:43,449 INFO L628 ElimStorePlain]: treesize reduction 122, result has 32.2 percent of original size [2021-06-06 15:35:43,453 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 4 treesize of output 2 [2021-06-06 15:35:43,454 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-06 15:35:43,481 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 15:35:43,484 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 3 treesize of output 1 [2021-06-06 15:35:43,485 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-06 15:35:43,510 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 15:35:43,513 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 5 treesize of output 1 [2021-06-06 15:35:43,514 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-06 15:35:43,536 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 15:35:43,537 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-06-06 15:35:43,537 INFO L247 ElimStorePlain]: Needed 8 recursive calls to eliminate 4 variables, input treesize:284, output treesize:46 [2021-06-06 15:35:43,640 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 15:35:43,640 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1296881604] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 15:35:43,640 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 15:35:43,640 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 22 [2021-06-06 15:35:43,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021694470] [2021-06-06 15:35:43,641 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-06 15:35:43,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 15:35:43,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-06 15:35:43,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2021-06-06 15:35:43,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 15:35:43,642 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 15:35:43,642 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 22 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) [2021-06-06 15:35:43,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:43,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:43,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 15:35:43,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:43,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:43,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 15:35:43,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 15:35:43,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 15:35:43,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:43,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 15:35:43,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 15:35:43,952 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-06-06 15:35:44,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:44,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:44,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 15:35:44,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:44,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:44,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 15:35:44,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 15:35:44,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 15:35:44,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:44,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 15:35:44,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 15:35:44,233 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable260 [2021-06-06 15:35:44,233 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 15:35:44,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 15:35:44,234 INFO L82 PathProgramCache]: Analyzing trace with hash 124032236, now seen corresponding path program 8 times [2021-06-06 15:35:44,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 15:35:44,234 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047860835] [2021-06-06 15:35:44,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 15:35:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 15:35:44,374 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 15:35:44,374 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 15:35:44,374 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047860835] [2021-06-06 15:35:44,375 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047860835] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 15:35:44,375 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507557465] [2021-06-06 15:35:44,375 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 [2021-06-06 15:35:44,420 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 15:35:44,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 15:35:44,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-06 15:35:44,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 15:35:44,522 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 15:35:44,522 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507557465] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 15:35:44,522 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 15:35:44,522 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 16 [2021-06-06 15:35:44,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684894005] [2021-06-06 15:35:44,523 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-06 15:35:44,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 15:35:44,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-06 15:35:44,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2021-06-06 15:35:44,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 15:35:44,523 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 15:35:44,524 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 1.5625) internal successors, (25), 16 states have internal predecessors, (25), 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) [2021-06-06 15:35:44,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:44,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:44,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 15:35:44,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:44,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:44,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 15:35:44,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 15:35:44,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 15:35:44,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:44,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 15:35:44,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 15:35:44,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 15:35:44,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:44,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:44,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 15:35:44,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:44,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:44,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 15:35:44,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 15:35:44,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 15:35:44,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:44,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 15:35:44,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 15:35:44,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 15:35:44,908 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable377 [2021-06-06 15:35:44,909 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 15:35:44,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 15:35:44,909 INFO L82 PathProgramCache]: Analyzing trace with hash -476966406, now seen corresponding path program 9 times [2021-06-06 15:35:44,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 15:35:44,909 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328073701] [2021-06-06 15:35:44,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 15:35:44,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 15:35:45,325 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 15:35:45,326 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 15:35:45,326 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328073701] [2021-06-06 15:35:45,326 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328073701] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 15:35:45,326 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452290112] [2021-06-06 15:35:45,326 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 15:35:45,374 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-06-06 15:35:45,375 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 15:35:45,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 38 conjunts are in the unsatisfiable core [2021-06-06 15:35:45,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 15:35:46,417 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-06-06 15:35:46,418 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 15:35:46,422 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-06-06 15:35:46,422 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-06 15:35:46,426 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 15:35:46,427 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 15:35:46,427 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 2 [2021-06-06 15:35:46,428 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-06 15:35:46,432 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-06-06 15:35:46,432 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-06 15:35:46,436 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 15:35:46,436 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 10 treesize of output 1 [2021-06-06 15:35:46,437 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-06 15:35:46,509 INFO L628 ElimStorePlain]: treesize reduction 157, result has 27.3 percent of original size [2021-06-06 15:35:46,512 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 5 treesize of output 1 [2021-06-06 15:35:46,514 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-06 15:35:46,537 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 15:35:46,540 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 3 treesize of output 1 [2021-06-06 15:35:46,541 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-06 15:35:46,563 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 15:35:46,566 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 6 treesize of output 2 [2021-06-06 15:35:46,567 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-06 15:35:46,587 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 15:35:46,588 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-06-06 15:35:46,588 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:342, output treesize:45 [2021-06-06 15:35:46,707 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 15 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 15:35:46,707 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452290112] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 15:35:46,707 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 15:35:46,707 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2021-06-06 15:35:46,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432458347] [2021-06-06 15:35:46,708 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-06-06 15:35:46,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 15:35:46,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-06-06 15:35:46,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=763, Unknown=0, NotChecked=0, Total=870 [2021-06-06 15:35:46,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 15:35:46,709 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 15:35:46,709 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 1.4) internal successors, (42), 30 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 15:35:46,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:46,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:46,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 15:35:46,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:46,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:46,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 15:35:46,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 15:35:46,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 15:35:46,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:46,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 15:35:46,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 15:35:46,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 15:35:46,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 15:35:47,101 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2021-06-06 15:35:47,240 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2021-06-06 15:35:47,415 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2021-06-06 15:35:47,566 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2021-06-06 15:35:47,886 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2021-06-06 15:35:48,132 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2021-06-06 15:35:48,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:48,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:48,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 15:35:48,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:48,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:48,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 15:35:48,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 15:35:48,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 15:35:48,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:48,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 15:35:48,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 15:35:48,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 15:35:48,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-06 15:35:48,360 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable381,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 15:35:48,361 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 15:35:48,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 15:35:48,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1928055124, now seen corresponding path program 10 times [2021-06-06 15:35:48,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 15:35:48,361 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891702815] [2021-06-06 15:35:48,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 15:35:48,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 15:35:48,407 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-06-06 15:35:48,408 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 15:35:48,408 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891702815] [2021-06-06 15:35:48,408 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891702815] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 15:35:48,408 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108830266] [2021-06-06 15:35:48,408 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 15:35:48,458 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 15:35:48,458 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 15:35:48,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-06 15:35:48,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 15:35:48,492 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-06-06 15:35:48,493 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108830266] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 15:35:48,493 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-06 15:35:48,493 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 9 [2021-06-06 15:35:48,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623737807] [2021-06-06 15:35:48,493 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-06 15:35:48,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 15:35:48,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-06 15:35:48,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2021-06-06 15:35:48,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 15:35:48,495 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 15:35:48,495 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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) [2021-06-06 15:35:48,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:48,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:48,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 15:35:48,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:48,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:48,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 15:35:48,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 15:35:48,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 15:35:48,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:48,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 15:35:48,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 15:35:48,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 15:35:48,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-06 15:35:48,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 15:35:48,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:48,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:48,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 15:35:48,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:48,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:48,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 15:35:48,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 15:35:48,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 15:35:48,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:48,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 15:35:48,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 15:35:48,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 15:35:48,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-06 15:35:48,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:48,748 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable465 [2021-06-06 15:35:48,749 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 15:35:48,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 15:35:48,749 INFO L82 PathProgramCache]: Analyzing trace with hash 669944108, now seen corresponding path program 1 times [2021-06-06 15:35:48,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 15:35:48,749 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876887027] [2021-06-06 15:35:48,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 15:35:48,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 15:35:48,775 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-06-06 15:35:48,775 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 15:35:48,775 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876887027] [2021-06-06 15:35:48,776 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876887027] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 15:35:48,776 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 15:35:48,776 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-06 15:35:48,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145742043] [2021-06-06 15:35:48,776 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-06 15:35:48,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 15:35:48,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-06 15:35:48,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-06 15:35:48,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 15:35:48,777 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 15:35:48,777 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2021-06-06 15:35:48,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:48,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:48,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 15:35:48,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:48,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:48,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 15:35:48,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 15:35:48,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 15:35:48,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:48,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 15:35:48,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 15:35:48,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 15:35:48,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-06 15:35:48,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:48,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 15:35:49,565 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2021-06-06 15:35:49,943 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2021-06-06 15:35:50,100 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2021-06-06 15:35:50,406 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-06 15:35:50,589 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-06-06 15:35:50,726 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2021-06-06 15:35:50,876 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2021-06-06 15:35:51,003 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2021-06-06 15:35:51,356 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-06-06 15:35:51,507 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-06-06 15:35:51,749 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-06-06 15:35:51,980 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-06-06 15:35:52,145 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-06-06 15:35:52,351 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2021-06-06 15:35:52,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:52,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:52,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 15:35:52,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:52,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:52,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 15:35:52,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 15:35:52,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 15:35:52,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 15:35:52,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 15:35:52,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-06 15:35:52,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-06 15:35:52,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-06 15:35:52,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:52,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:52,952 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable466 [2021-06-06 15:35:52,952 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 15:35:52,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 15:35:52,952 INFO L82 PathProgramCache]: Analyzing trace with hash -775836721, now seen corresponding path program 11 times [2021-06-06 15:35:52,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 15:35:52,953 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477936262] [2021-06-06 15:35:52,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 15:35:52,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 15:35:53,020 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-06 15:35:53,020 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 15:35:53,020 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477936262] [2021-06-06 15:35:53,020 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477936262] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 15:35:53,020 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162658113] [2021-06-06 15:35:53,020 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 15:35:53,065 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-06-06 15:35:53,065 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 15:35:53,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-06 15:35:53,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 15:35:53,200 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-06 15:35:53,201 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162658113] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 15:35:53,201 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 15:35:53,201 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2021-06-06 15:35:53,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323258470] [2021-06-06 15:35:53,202 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-06 15:35:53,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 15:35:53,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-06 15:35:53,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-06-06 15:35:53,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 15:35:53,203 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 15:35:53,203 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 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) [2021-06-06 15:35:53,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:53,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:53,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 15:35:53,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:53,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:53,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 15:35:53,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 15:35:53,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 15:35:53,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 15:35:53,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 15:35:53,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-06 15:35:53,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-06 15:35:53,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-06 15:35:53,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:53,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:53,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 15:35:54,354 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 41 [2021-06-06 15:35:54,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:54,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:54,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 15:35:54,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:54,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 15:35:54,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 15:35:54,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-06 15:35:54,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-06 15:35:54,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 15:35:54,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 15:35:54,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-06-06 15:35:54,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 15:35:54,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-06 15:35:54,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 15:35:54,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 15:35:54,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 15:35:55,124 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable467,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 15:35:55,130 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-06 15:35:55,132 INFO L202 PluginConnector]: Adding new model nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.06 03:35:55 BasicIcfg [2021-06-06 15:35:55,132 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-06 15:35:55,132 INFO L168 Benchmark]: Toolchain (without parser) took 21629.93 ms. Allocated memory was 341.8 MB in the beginning and 595.6 MB in the end (delta: 253.8 MB). Free memory was 321.6 MB in the beginning and 320.7 MB in the end (delta: 860.1 kB). Peak memory consumption was 257.2 MB. Max. memory is 16.0 GB. [2021-06-06 15:35:55,132 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.16 ms. Allocated memory is still 341.8 MB. Free memory was 322.9 MB in the beginning and 322.9 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-06 15:35:55,132 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.76 ms. Allocated memory is still 341.8 MB. Free memory was 321.5 MB in the beginning and 320.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-06 15:35:55,133 INFO L168 Benchmark]: Boogie Preprocessor took 15.12 ms. Allocated memory is still 341.8 MB. Free memory was 320.0 MB in the beginning and 318.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-06 15:35:55,133 INFO L168 Benchmark]: RCFGBuilder took 617.55 ms. Allocated memory is still 341.8 MB. Free memory was 318.9 MB in the beginning and 316.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 16.0 GB. [2021-06-06 15:35:55,133 INFO L168 Benchmark]: TraceAbstraction took 20962.05 ms. Allocated memory was 341.8 MB in the beginning and 595.6 MB in the end (delta: 253.8 MB). Free memory was 315.6 MB in the beginning and 320.7 MB in the end (delta: -5.2 MB). Peak memory consumption was 248.6 MB. Max. memory is 16.0 GB. [2021-06-06 15:35:55,133 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.16 ms. Allocated memory is still 341.8 MB. Free memory was 322.9 MB in the beginning and 322.9 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 30.76 ms. Allocated memory is still 341.8 MB. Free memory was 321.5 MB in the beginning and 320.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 15.12 ms. Allocated memory is still 341.8 MB. Free memory was 320.0 MB in the beginning and 318.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 617.55 ms. Allocated memory is still 341.8 MB. Free memory was 318.9 MB in the beginning and 316.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 20962.05 ms. Allocated memory was 341.8 MB in the beginning and 595.6 MB in the end (delta: 253.8 MB). Free memory was 315.6 MB in the beginning and 320.7 MB in the end (delta: -5.2 MB). Peak memory consumption was 248.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1410, positive: 993, positive conditional: 993, positive unconditional: 0, negative: 417, negative conditional: 417, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 993, positive: 993, positive conditional: 993, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 993, positive: 993, positive conditional: 0, positive unconditional: 993, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 36, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 36, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 993, positive: 957, positive conditional: 0, positive unconditional: 957, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 36, unknown conditional: 0, unknown unconditional: 36] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 ], Maximal queried relation: 0, Independence queries for same thread: 417 - PositiveResult [Line: 100]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 27 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 20852.1ms, OverallIterations: 16, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.5ms, PartialOrderReductionTime: 9152.5ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 211, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 97.7ms SsaConstructionTime, 420.0ms SatisfiabilityAnalysisTime, 8363.0ms InterpolantComputationTime, 470 NumberOfCodeBlocks, 470 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 443 ConstructedInterpolants, 34 QuantifiedInterpolants, 7703 SizeOfPredicates, 62 NumberOfNonLiveVariables, 1022 ConjunctsInSsa, 261 ConjunctsInUnsatCore, 27 InterpolantComputations, 6 PerfectInterpolantSequences, 131/373 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...