/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/counter-fun.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-06 04:35:32,511 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-06 04:35:32,514 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-06 04:35:32,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-06 04:35:32,587 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.epf [2021-06-06 04:35:32,608 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-06 04:35:32,609 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-06 04:35:32,609 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-06 04:35:32,609 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-06 04:35:32,610 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-06 04:35:32,610 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-06 04:35:32,610 INFO L138 SettingsManager]: * Use SBE=true [2021-06-06 04:35:32,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-06 04:35:32,611 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-06 04:35:32,611 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-06 04:35:32,611 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-06 04:35:32,611 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-06 04:35:32,611 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-06 04:35:32,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-06 04:35:32,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-06 04:35:32,612 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-06 04:35:32,612 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-06 04:35:32,612 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-06 04:35:32,612 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-06 04:35:32,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-06 04:35:32,612 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-06 04:35:32,612 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-06 04:35:32,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-06 04:35:32,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 04:35:32,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-06 04:35:32,613 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-06 04:35:32,613 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-06 04:35:32,613 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-06 04:35:32,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-06 04:35:32,613 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-06 04:35:32,614 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-06 04:35:32,614 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-06 04:35:32,614 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-06 04:35:32,614 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-06 04:35:32,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-06 04:35:32,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-06 04:35:32,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-06 04:35:32,881 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-06 04:35:32,882 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-06 04:35:32,883 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/counter-fun.wvr.bpl [2021-06-06 04:35:32,883 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/counter-fun.wvr.bpl' [2021-06-06 04:35:32,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-06 04:35:32,906 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-06 04:35:32,910 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-06 04:35:32,910 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-06 04:35:32,910 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-06 04:35:32,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 04:35:32" (1/1) ... [2021-06-06 04:35:32,930 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 04:35:32" (1/1) ... [2021-06-06 04:35:32,936 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-06 04:35:32,937 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-06 04:35:32,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-06 04:35:32,937 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-06 04:35:32,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 04:35:32" (1/1) ... [2021-06-06 04:35:32,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 04:35:32" (1/1) ... [2021-06-06 04:35:32,943 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 04:35:32" (1/1) ... [2021-06-06 04:35:32,943 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 04:35:32" (1/1) ... [2021-06-06 04:35:32,945 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 04:35:32" (1/1) ... [2021-06-06 04:35:32,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 04:35:32" (1/1) ... [2021-06-06 04:35:32,947 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 04:35:32" (1/1) ... [2021-06-06 04:35:32,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-06 04:35:32,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-06 04:35:32,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-06 04:35:32,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-06 04:35:32,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 04:35:32" (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 04:35:33,016 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-06 04:35:33,017 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-06 04:35:33,017 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-06 04:35:33,017 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-06 04:35:33,017 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-06 04:35:33,017 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-06 04:35:33,017 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-06 04:35:33,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-06 04:35:33,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-06 04:35:33,018 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 04:35:33,252 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-06 04:35:33,252 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-06 04:35:33,254 INFO L202 PluginConnector]: Adding new model counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 04:35:33 BoogieIcfgContainer [2021-06-06 04:35:33,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-06 04:35:33,255 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-06 04:35:33,256 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-06 04:35:33,258 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-06 04:35:33,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 04:35:32" (1/2) ... [2021-06-06 04:35:33,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c49e68c and model type counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.06 04:35:33, skipping insertion in model container [2021-06-06 04:35:33,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 04:35:33" (2/2) ... [2021-06-06 04:35:33,260 INFO L111 eAbstractionObserver]: Analyzing ICFG counter-fun.wvr.bpl [2021-06-06 04:35:33,264 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-06 04:35:33,265 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-06 04:35:33,265 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-06 04:35:33,265 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-06 04:35:33,305 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-06 04:35:33,322 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 04:35:33,374 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-06 04:35:33,374 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-06 04:35:33,374 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-06 04:35:33,374 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-06 04:35:33,374 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-06 04:35:33,374 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-06 04:35:33,375 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-06 04:35:33,375 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-06 04:35:33,445 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 04:35:33,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 04:35:33,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1240814196, now seen corresponding path program 1 times [2021-06-06 04:35:33,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 04:35:33,461 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605718954] [2021-06-06 04:35:33,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 04:35:33,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 04:35:33,600 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 04:35:33,600 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 04:35:33,601 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605718954] [2021-06-06 04:35:33,602 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605718954] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 04:35:33,602 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 04:35:33,602 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-06 04:35:33,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043745470] [2021-06-06 04:35:33,607 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-06 04:35:33,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 04:35:33,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-06 04:35:33,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-06 04:35:33,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 04:35:33,622 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 04:35:33,625 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 04:35:33,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 04:35:33,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 04:35:33,649 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-06 04:35:33,649 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 04:35:33,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 04:35:33,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1168738802, now seen corresponding path program 1 times [2021-06-06 04:35:33,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 04:35:33,650 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123292745] [2021-06-06 04:35:33,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 04:35:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 04:35:33,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 04:35:33,723 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 04:35:33,723 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123292745] [2021-06-06 04:35:33,723 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123292745] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 04:35:33,723 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937177490] [2021-06-06 04:35:33,723 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 04:35:33,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 04:35:33,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-06 04:35:33,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 04:35:33,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 04:35:33,937 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937177490] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 04:35:33,938 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 04:35:33,938 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2021-06-06 04:35:33,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143024655] [2021-06-06 04:35:33,939 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-06 04:35:33,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 04:35:33,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-06 04:35:33,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-06-06 04:35:33,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 04:35:33,941 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 04:35:33,941 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 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 04:35:33,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 04:35:33,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 04:35:34,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 04:35:34,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 04:35:34,273 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 04:35:34,273 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 04:35:34,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 04:35:34,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1138377344, now seen corresponding path program 1 times [2021-06-06 04:35:34,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 04:35:34,274 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120365230] [2021-06-06 04:35:34,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 04:35:34,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 04:35:34,403 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 04:35:34,404 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 04:35:34,404 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120365230] [2021-06-06 04:35:34,404 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120365230] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 04:35:34,405 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387710907] [2021-06-06 04:35:34,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 04:35:34,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 04:35:34,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-06 04:35:34,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 04:35:34,555 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 04:35:34,555 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387710907] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 04:35:34,555 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 04:35:34,556 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2021-06-06 04:35:34,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473583596] [2021-06-06 04:35:34,556 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-06 04:35:34,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 04:35:34,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-06 04:35:34,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-06-06 04:35:34,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 04:35:34,557 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 04:35:34,557 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 13 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 04:35:34,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 04:35:34,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 04:35:34,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 04:35:34,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 04:35:34,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 04:35:34,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 04:35:34,944 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 04:35:34,945 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 04:35:34,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 04:35:34,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1561219212, now seen corresponding path program 2 times [2021-06-06 04:35:34,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 04:35:34,946 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281195756] [2021-06-06 04:35:34,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 04:35:34,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 04:35:35,007 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 04:35:35,007 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 04:35:35,008 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281195756] [2021-06-06 04:35:35,008 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281195756] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 04:35:35,011 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [164021374] [2021-06-06 04:35:35,011 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 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 04:35:35,055 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 04:35:35,055 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 04:35:35,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-06 04:35:35,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 04:35:35,126 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 04:35:35,127 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-06-06 04:35:35,133 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 04:35:35,140 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 04:35:35,142 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 04:35:35,142 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:20 [2021-06-06 04:35:35,355 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-06-06 04:35:35,356 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 18 [2021-06-06 04:35:35,361 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 04:35:35,365 INFO L628 ElimStorePlain]: treesize reduction 21, result has 12.5 percent of original size [2021-06-06 04:35:35,365 INFO L518 ElimStorePlain]: Eliminatee v_prenex_2 vanished before elimination [2021-06-06 04:35:35,366 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 04:35:35,366 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:42, output treesize:3 [2021-06-06 04:35:35,375 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 04:35:35,375 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [164021374] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 04:35:35,375 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 04:35:35,376 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2021-06-06 04:35:35,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521835979] [2021-06-06 04:35:35,376 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-06 04:35:35,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 04:35:35,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-06 04:35:35,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-06 04:35:35,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 04:35:35,378 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 04:35:35,378 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 04:35:35,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 04:35:35,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 04:35:35,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 04:35:35,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 04:35:35,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 04:35:35,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 04:35:35,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 04:35:35,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 04:35:35,708 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 04:35:35,709 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 04:35:35,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 04:35:35,709 INFO L82 PathProgramCache]: Analyzing trace with hash -285511166, now seen corresponding path program 3 times [2021-06-06 04:35:35,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 04:35:35,709 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127651635] [2021-06-06 04:35:35,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 04:35:35,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 04:35:35,856 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 14 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-06 04:35:35,856 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 04:35:35,856 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127651635] [2021-06-06 04:35:35,857 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127651635] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 04:35:35,857 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186867856] [2021-06-06 04:35:35,857 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 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 04:35:35,893 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-06-06 04:35:35,894 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 04:35:35,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-06 04:35:35,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 04:35:36,143 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 9 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 04:35:36,144 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [186867856] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 04:35:36,144 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 04:35:36,144 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 21 [2021-06-06 04:35:36,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541997826] [2021-06-06 04:35:36,144 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-06 04:35:36,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 04:35:36,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-06 04:35:36,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2021-06-06 04:35:36,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 04:35:36,146 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 04:35:36,146 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.3636363636363638) internal successors, (52), 21 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 04:35:36,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 04:35:36,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 04:35:36,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 04:35:36,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 04:35:36,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 04:35:36,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 04:35:36,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 04:35:36,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 04:35:36,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 04:35:36,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 04:35:36,776 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-06-06 04:35:36,777 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 04:35:36,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 04:35:36,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1713497484, now seen corresponding path program 4 times [2021-06-06 04:35:36,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 04:35:36,778 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189563182] [2021-06-06 04:35:36,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 04:35:36,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 04:35:36,866 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 04:35:36,866 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 04:35:36,866 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189563182] [2021-06-06 04:35:36,867 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189563182] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 04:35:36,867 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081933955] [2021-06-06 04:35:36,867 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 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 04:35:36,913 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 04:35:36,914 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 04:35:36,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 33 conjunts are in the unsatisfiable core [2021-06-06 04:35:36,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 04:35:37,070 INFO L354 Elim1Store]: treesize reduction 32, result has 60.5 percent of original size [2021-06-06 04:35:37,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 89 treesize of output 89 [2021-06-06 04:35:37,078 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 04:35:37,105 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 04:35:37,107 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 04:35:37,107 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:89, output treesize:162 [2021-06-06 04:35:37,376 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-06-06 04:35:37,884 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 38 [2021-06-06 04:35:38,527 INFO L354 Elim1Store]: treesize reduction 69, result has 14.8 percent of original size [2021-06-06 04:35:38,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 98 treesize of output 53 [2021-06-06 04:35:38,531 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 04:35:38,614 INFO L628 ElimStorePlain]: treesize reduction 160, result has 59.6 percent of original size [2021-06-06 04:35:38,637 INFO L354 Elim1Store]: treesize reduction 74, result has 8.6 percent of original size [2021-06-06 04:35:38,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 61 treesize of output 35 [2021-06-06 04:35:38,640 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-06 04:35:38,684 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 04:35:38,713 INFO L354 Elim1Store]: treesize reduction 71, result has 12.3 percent of original size [2021-06-06 04:35:38,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 51 treesize of output 34 [2021-06-06 04:35:38,715 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-06 04:35:38,742 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 04:35:38,792 INFO L354 Elim1Store]: treesize reduction 40, result has 50.6 percent of original size [2021-06-06 04:35:38,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 63 treesize of output 75 [2021-06-06 04:35:38,799 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-06 04:35:38,808 INFO L628 ElimStorePlain]: treesize reduction 76, result has 3.8 percent of original size [2021-06-06 04:35:38,808 INFO L518 ElimStorePlain]: Eliminatee v_prenex_15 vanished before elimination [2021-06-06 04:35:38,809 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 5 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 04:35:38,809 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 10 variables, input treesize:486, output treesize:3 [2021-06-06 04:35:38,820 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 04:35:38,820 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081933955] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 04:35:38,820 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 04:35:38,820 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12] total 17 [2021-06-06 04:35:38,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641378099] [2021-06-06 04:35:38,821 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-06 04:35:38,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 04:35:38,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-06 04:35:38,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-06-06 04:35:38,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 04:35:38,822 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 04:35:38,822 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 17 states have internal predecessors, (56), 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 04:35:38,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 04:35:38,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 04:35:38,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 04:35:38,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 04:35:38,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 04:35:38,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 04:35:38,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 04:35:38,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 04:35:38,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 04:35:38,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 04:35:38,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 04:35:38,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 04:35:39,148 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 04:35:39,149 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 04:35:39,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 04:35:39,149 INFO L82 PathProgramCache]: Analyzing trace with hash 2147220864, now seen corresponding path program 5 times [2021-06-06 04:35:39,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 04:35:39,150 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280543193] [2021-06-06 04:35:39,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 04:35:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 04:35:39,356 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 47 proven. 40 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-06 04:35:39,357 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 04:35:39,357 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280543193] [2021-06-06 04:35:39,357 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280543193] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 04:35:39,357 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342744529] [2021-06-06 04:35:39,357 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 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 04:35:39,405 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-06-06 04:35:39,405 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 04:35:39,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-06 04:35:39,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 04:35:39,815 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 36 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 04:35:39,816 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [342744529] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 04:35:39,816 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 04:35:39,816 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 31 [2021-06-06 04:35:39,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151714140] [2021-06-06 04:35:39,817 INFO L462 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-06-06 04:35:39,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 04:35:39,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-06-06 04:35:39,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=813, Unknown=0, NotChecked=0, Total=992 [2021-06-06 04:35:39,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 04:35:39,819 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 04:35:39,819 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 2.25) internal successors, (72), 31 states have internal predecessors, (72), 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 04:35:39,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 04:35:39,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 04:35:39,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 04:35:39,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 04:35:39,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 04:35:39,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 04:35:39,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 04:35:40,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 04:35:40,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 04:35:40,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 04:35:40,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 04:35:40,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 04:35:40,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 04:35:40,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 04:35:40,672 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-06-06 04:35:40,675 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 04:35:40,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 04:35:40,675 INFO L82 PathProgramCache]: Analyzing trace with hash 689200756, now seen corresponding path program 6 times [2021-06-06 04:35:40,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 04:35:40,675 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582457547] [2021-06-06 04:35:40,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 04:35:40,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 04:35:40,797 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 04:35:40,797 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 04:35:40,797 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582457547] [2021-06-06 04:35:40,798 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582457547] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 04:35:40,798 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621496744] [2021-06-06 04:35:40,798 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 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 04:35:40,840 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2021-06-06 04:35:40,840 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 04:35:40,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 63 conjunts are in the unsatisfiable core [2021-06-06 04:35:40,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 04:35:41,501 INFO L446 ElimStorePlain]: Different costs {36=[f], 105=[f_inv]} [2021-06-06 04:35:41,652 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 83 [2021-06-06 04:35:41,653 INFO L354 Elim1Store]: treesize reduction 160, result has 44.6 percent of original size [2021-06-06 04:35:41,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 17 new quantified variables, introduced 36 case distinctions, treesize of input 271 treesize of output 245 [2021-06-06 04:36:04,684 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-06 04:36:04,764 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 04:36:04,886 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-06-06 04:36:04,886 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 04:36:04,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 15 new quantified variables, introduced 28 case distinctions, treesize of input 695 treesize of output 380 [2021-06-06 04:36:05,535 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-06 04:36:05,536 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 04:36:05,537 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 04:36:05,537 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:271, output treesize:3 [2021-06-06 04:36:05,549 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 04:36:05,549 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621496744] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 04:36:05,549 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 04:36:05,549 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 18] total 26 [2021-06-06 04:36:05,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647883119] [2021-06-06 04:36:05,550 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-06 04:36:05,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 04:36:05,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-06 04:36:05,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=579, Unknown=0, NotChecked=0, Total=650 [2021-06-06 04:36:05,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 04:36:05,559 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 04:36:05,559 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 3.076923076923077) internal successors, (80), 26 states have internal predecessors, (80), 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 04:36:05,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 04:36:05,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 04:36:05,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 04:36:05,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 04:36:05,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 04:36:05,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 04:36:05,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-06 04:36:05,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 04:36:05,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 04:36:05,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 04:36:05,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 04:36:05,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 04:36:05,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 04:36:05,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 04:36:05,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 04:36:05,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 04:36:05,889 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-06-06 04:36:05,889 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 04:36:05,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 04:36:05,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1757594880, now seen corresponding path program 7 times [2021-06-06 04:36:05,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 04:36:05,890 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603582854] [2021-06-06 04:36:05,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 04:36:05,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 04:36:06,147 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 98 proven. 85 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-06 04:36:06,148 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 04:36:06,148 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603582854] [2021-06-06 04:36:06,148 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603582854] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 04:36:06,148 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084319290] [2021-06-06 04:36:06,148 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 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 04:36:06,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 04:36:06,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 23 conjunts are in the unsatisfiable core [2021-06-06 04:36:06,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 04:36:06,751 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 81 proven. 104 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 04:36:06,751 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084319290] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 04:36:06,752 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 04:36:06,752 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 23] total 43 [2021-06-06 04:36:06,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381581117] [2021-06-06 04:36:06,752 INFO L462 AbstractCegarLoop]: Interpolant automaton has 44 states [2021-06-06 04:36:06,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 04:36:06,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-06-06 04:36:06,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=323, Invalid=1569, Unknown=0, NotChecked=0, Total=1892 [2021-06-06 04:36:06,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 04:36:06,754 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 04:36:06,754 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 44 states, 44 states have (on average 2.1818181818181817) internal successors, (96), 43 states have internal predecessors, (96), 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 04:36:06,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 04:36:06,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 04:36:06,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 04:36:06,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 04:36:06,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 04:36:06,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-06 04:36:06,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-06 04:36:06,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 04:36:06,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 04:36:07,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 04:36:07,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 04:36:07,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 04:36:07,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 04:36:07,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 04:36:07,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-06 04:36:07,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 04:36:07,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 04:36:07,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-06 04:36:07,950 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5858,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 04:36:07,951 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 04:36:07,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 04:36:07,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1867498636, now seen corresponding path program 8 times [2021-06-06 04:36:07,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 04:36:07,951 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892811107] [2021-06-06 04:36:07,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 04:36:07,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 04:36:08,114 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 04:36:08,115 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 04:36:08,115 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892811107] [2021-06-06 04:36:08,115 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892811107] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 04:36:08,115 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372890466] [2021-06-06 04:36:08,115 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 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 04:36:08,163 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 04:36:08,163 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 04:36:08,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 69 conjunts are in the unsatisfiable core [2021-06-06 04:36:08,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 04:36:08,810 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 143 [2021-06-06 04:36:08,811 INFO L354 Elim1Store]: treesize reduction 200, result has 54.6 percent of original size [2021-06-06 04:36:08,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 21 new quantified variables, introduced 55 case distinctions, treesize of input 323 treesize of output 329 [2021-06-06 04:36:08,841 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 04:36:09,031 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-06-06 04:36:09,032 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 04:36:09,040 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 04:36:09,041 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:323, output treesize:1586 [2021-06-06 04:36:09,254 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 116 Received shutdown request... [2021-06-06 04:49:32,287 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5859,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 04:49:32,287 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-06 04:49:32,292 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-06 04:49:32,294 WARN L196 ceAbstractionStarter]: Timeout [2021-06-06 04:49:32,294 INFO L202 PluginConnector]: Adding new model counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.06 04:49:32 BasicIcfg [2021-06-06 04:49:32,294 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-06 04:49:32,294 INFO L168 Benchmark]: Toolchain (without parser) took 839388.61 ms. Allocated memory was 337.6 MB in the beginning and 1.2 GB in the end (delta: 882.9 MB). Free memory was 317.5 MB in the beginning and 845.3 MB in the end (delta: -527.8 MB). Peak memory consumption was 762.4 MB. Max. memory is 16.0 GB. [2021-06-06 04:49:32,294 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.16 ms. Allocated memory is still 337.6 MB. Free memory was 318.7 MB in the beginning and 318.6 MB in the end (delta: 69.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-06 04:49:32,294 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.20 ms. Allocated memory is still 337.6 MB. Free memory was 317.4 MB in the beginning and 316.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-06 04:49:32,295 INFO L168 Benchmark]: Boogie Preprocessor took 11.10 ms. Allocated memory is still 337.6 MB. Free memory was 316.0 MB in the beginning and 315.0 MB in the end (delta: 979.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-06 04:49:32,295 INFO L168 Benchmark]: RCFGBuilder took 305.48 ms. Allocated memory is still 337.6 MB. Free memory was 315.0 MB in the beginning and 302.7 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-06-06 04:49:32,295 INFO L168 Benchmark]: TraceAbstraction took 839038.49 ms. Allocated memory was 337.6 MB in the beginning and 1.2 GB in the end (delta: 882.9 MB). Free memory was 302.2 MB in the beginning and 845.3 MB in the end (delta: -543.1 MB). Peak memory consumption was 747.7 MB. Max. memory is 16.0 GB. [2021-06-06 04:49:32,295 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 337.6 MB. Free memory was 318.7 MB in the beginning and 318.6 MB in the end (delta: 69.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 26.20 ms. Allocated memory is still 337.6 MB. Free memory was 317.4 MB in the beginning and 316.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 11.10 ms. Allocated memory is still 337.6 MB. Free memory was 316.0 MB in the beginning and 315.0 MB in the end (delta: 979.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 305.48 ms. Allocated memory is still 337.6 MB. Free memory was 315.0 MB in the beginning and 302.7 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 839038.49 ms. Allocated memory was 337.6 MB in the beginning and 1.2 GB in the end (delta: 882.9 MB). Free memory was 302.2 MB in the beginning and 845.3 MB in the end (delta: -543.1 MB). Peak memory consumption was 747.7 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: 533, positive: 391, positive conditional: 391, positive unconditional: 0, negative: 142, negative conditional: 142, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 397, positive: 391, positive conditional: 391, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 397, positive: 391, positive conditional: 0, positive unconditional: 391, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 18, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 18, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 4, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 64, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 64, negative conditional: 19, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 397, positive: 374, positive conditional: 0, positive unconditional: 374, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 18, unknown conditional: 0, unknown unconditional: 18] , Statistics on independence cache: Total cache size (in pairs): 22, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 5, Negative conditional cache size: 4, Negative unconditional cache size: 1, SemanticConditionEliminator.Independence Queries: [ total: 21, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 21, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 4, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 64, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 64, negative conditional: 19, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 21, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 17, negative conditional: 6, negative unconditional: 11, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 22, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 5, Negative conditional cache size: 4, Negative unconditional cache size: 1, Eliminated conditions: 11, SemanticConditionEliminator.Independence Queries: [ total: 21, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 21, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 4, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 64, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 64, negative conditional: 19, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 21, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 17, negative conditional: 6, negative unconditional: 11, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 22, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 5, Negative conditional cache size: 4, Negative unconditional cache size: 1, Eliminated conditions: 11, SemanticConditionEliminator.Independence Queries: [ total: 21, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 21, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 4, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 64, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 64, negative conditional: 19, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 21, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 17, negative conditional: 6, negative unconditional: 11, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 22, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 5, Negative conditional cache size: 4, Negative unconditional cache size: 1, Eliminated conditions: 11, SemanticConditionEliminator.Independence Queries: [ total: 21, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 21, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 4, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 64, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 64, negative conditional: 19, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 21, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 17, negative conditional: 6, negative unconditional: 11, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 22, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 5, Negative conditional cache size: 4, Negative unconditional cache size: 1, Eliminated conditions: 11, SemanticConditionEliminator.Independence Queries: [ total: 21, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 21, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 4, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 64, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 64, negative conditional: 19, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 21, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 17, negative conditional: 6, negative unconditional: 11, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 22, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 5, Negative conditional cache size: 4, Negative unconditional cache size: 1, Eliminated conditions: 11, SemanticConditionEliminator.Independence Queries: [ total: 21, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 21, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 4, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 64, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 64, negative conditional: 19, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 21, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 17, negative conditional: 6, negative unconditional: 11, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 22, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 5, Negative conditional cache size: 4, Negative unconditional cache size: 1, Eliminated conditions: 11, SemanticConditionEliminator.Independence Queries: [ total: 21, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 21, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 4, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 64, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 64, negative conditional: 19, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 21, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 17, negative conditional: 6, negative unconditional: 11, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 22, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 5, Negative conditional cache size: 4, Negative unconditional cache size: 1, Eliminated conditions: 11, SemanticConditionEliminator.Independence Queries: [ total: 21, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 21, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 4, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 64, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 64, negative conditional: 19, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 21, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 17, negative conditional: 6, negative unconditional: 11, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 22, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 5, Negative conditional cache size: 4, Negative unconditional cache size: 1, Eliminated conditions: 11, SemanticConditionEliminator.Independence Queries: [ total: 21, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 21, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 4, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 64, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 64, negative conditional: 19, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 21, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 17, negative conditional: 6, negative unconditional: 11, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 22, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 5, Negative conditional cache size: 4, Negative unconditional cache size: 1, Eliminated conditions: 11 ], Maximal queried relation: 8, Independence queries for same thread: 136 - TimeoutResultAtElement [Line: 53]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 59 with TraceHistMax 11,while TraceCheckSpWp was constructing forward predicates,while QuantifierPusher was running 1 iterations of DualJunctionQuantifierElimination. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 31 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 838955.7ms, OverallIterations: 10, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.6ms, PartialOrderReductionTime: 2761.7ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 123, 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: 55.9ms SsaConstructionTime, 248.4ms SatisfiabilityAnalysisTime, 29440.5ms InterpolantComputationTime, 534 NumberOfCodeBlocks, 534 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 517 ConstructedInterpolants, 10 QuantifiedInterpolants, 12587 SizeOfPredicates, 26 NumberOfNonLiveVariables, 742 ConjunctsInSsa, 175 ConjunctsInUnsatCore, 17 InterpolantComputations, 1 PerfectInterpolantSequences, 293/1000 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown