/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random7777.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/threaded-sum-2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-07 04:08:43,386 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-07 04:08:43,389 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-07 04:08:43,425 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-07 04:08:43,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-07 04:08:43,448 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-07 04:08:43,448 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-07 04:08:43,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-07 04:08:43,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-07 04:08:43,450 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-07 04:08:43,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-07 04:08:43,453 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-07 04:08:43,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-07 04:08:43,457 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-07 04:08:43,460 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-07 04:08:43,462 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-07 04:08:43,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-07 04:08:43,483 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random7777.epf [2021-06-07 04:08:43,518 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-07 04:08:43,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-07 04:08:43,519 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-07 04:08:43,519 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-07 04:08:43,521 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-07 04:08:43,521 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-07 04:08:43,522 INFO L138 SettingsManager]: * Use SBE=true [2021-06-07 04:08:43,522 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-07 04:08:43,522 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-07 04:08:43,522 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-07 04:08:43,523 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-07 04:08:43,523 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-07 04:08:43,523 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-07 04:08:43,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-07 04:08:43,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-07 04:08:43,523 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-07 04:08:43,524 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-07 04:08:43,524 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-07 04:08:43,524 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-07 04:08:43,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-07 04:08:43,524 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-07 04:08:43,524 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-07 04:08:43,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-07 04:08:43,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-07 04:08:43,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-07 04:08:43,525 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-07 04:08:43,525 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-07 04:08:43,525 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-07 04:08:43,525 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-07 04:08:43,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-07 04:08:43,525 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-07 04:08:43,525 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-07 04:08:43,526 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-07 04:08:43,526 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-07 04:08:43,526 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-07 04:08:43,526 INFO L138 SettingsManager]: * Random seed used by POR DFS order=7777 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-07 04:08:43,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-07 04:08:43,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-07 04:08:43,841 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-07 04:08:43,842 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-07 04:08:43,843 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-07 04:08:43,844 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/threaded-sum-2.wvr.bpl [2021-06-07 04:08:43,844 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/threaded-sum-2.wvr.bpl' [2021-06-07 04:08:43,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-07 04:08:43,871 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-07 04:08:43,873 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-07 04:08:43,873 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-07 04:08:43,873 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-07 04:08:43,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:08:43" (1/1) ... [2021-06-07 04:08:43,889 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:08:43" (1/1) ... [2021-06-07 04:08:43,894 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-07 04:08:43,895 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-07 04:08:43,895 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-07 04:08:43,895 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-07 04:08:43,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:08:43" (1/1) ... [2021-06-07 04:08:43,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:08:43" (1/1) ... [2021-06-07 04:08:43,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:08:43" (1/1) ... [2021-06-07 04:08:43,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:08:43" (1/1) ... [2021-06-07 04:08:43,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:08:43" (1/1) ... [2021-06-07 04:08:43,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:08:43" (1/1) ... [2021-06-07 04:08:43,907 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:08:43" (1/1) ... [2021-06-07 04:08:43,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-07 04:08:43,910 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-07 04:08:43,910 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-07 04:08:43,910 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-07 04:08:43,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:08:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-07 04:08:43,987 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-07 04:08:43,987 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-07 04:08:43,987 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-07 04:08:43,987 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-07 04:08:43,988 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-07 04:08:43,988 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-07 04:08:43,988 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-07 04:08:43,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-07 04:08:43,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-07 04:08:43,989 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-07 04:08:44,219 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-07 04:08:44,220 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-07 04:08:44,221 INFO L202 PluginConnector]: Adding new model threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.06 04:08:44 BoogieIcfgContainer [2021-06-07 04:08:44,221 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-07 04:08:44,222 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-07 04:08:44,223 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-07 04:08:44,225 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-07 04:08:44,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:08:43" (1/2) ... [2021-06-07 04:08:44,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27b8b8e7 and model type threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.06 04:08:44, skipping insertion in model container [2021-06-07 04:08:44,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.06 04:08:44" (2/2) ... [2021-06-07 04:08:44,227 INFO L111 eAbstractionObserver]: Analyzing ICFG threaded-sum-2.wvr.bpl [2021-06-07 04:08:44,231 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-07 04:08:44,231 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-07 04:08:44,231 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-07 04:08:44,232 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-07 04:08:44,307 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-07 04:08:44,341 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 [2021-06-07 04:08:44,429 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-07 04:08:44,429 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-07 04:08:44,429 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-07 04:08:44,430 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-07 04:08:44,430 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-07 04:08:44,430 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-07 04:08:44,430 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-07 04:08:44,430 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-07 04:08:44,468 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:08:44,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:08:44,475 INFO L82 PathProgramCache]: Analyzing trace with hash -376737268, now seen corresponding path program 1 times [2021-06-07 04:08:44,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:08:44,483 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669550035] [2021-06-07 04:08:44,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:08:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:08:44,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:08:44,611 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:08:44,611 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669550035] [2021-06-07 04:08:44,612 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669550035] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 04:08:44,612 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 04:08:44,612 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-07 04:08:44,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073944883] [2021-06-07 04:08:44,616 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-07 04:08:44,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 04:08:44,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-07 04:08:44,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-07 04:08:44,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:08:44,636 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 04:08:44,641 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 04:08:44,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:08:44,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:44,672 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-07 04:08:44,672 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:08:44,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:08:44,675 INFO L82 PathProgramCache]: Analyzing trace with hash 574744348, now seen corresponding path program 1 times [2021-06-07 04:08:44,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:08:44,675 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488091018] [2021-06-07 04:08:44,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:08:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:08:44,726 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-07 04:08:44,727 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:08:44,727 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488091018] [2021-06-07 04:08:44,727 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488091018] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 04:08:44,727 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 04:08:44,727 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-07 04:08:44,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147282996] [2021-06-07 04:08:44,729 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-07 04:08:44,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 04:08:44,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-07 04:08:44,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-07 04:08:44,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:08:44,730 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 04:08:44,730 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 04:08:44,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:44,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:08:44,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:44,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:44,802 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-07 04:08:44,802 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:08:44,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:08:44,803 INFO L82 PathProgramCache]: Analyzing trace with hash 39623532, now seen corresponding path program 1 times [2021-06-07 04:08:44,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:08:44,803 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834506531] [2021-06-07 04:08:44,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:08:44,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:08:45,026 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:08:45,027 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:08:45,027 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834506531] [2021-06-07 04:08:45,027 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834506531] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:08:45,027 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753097883] [2021-06-07 04:08:45,027 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 [2021-06-07 04:08:45,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:08:45,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-07 04:08:45,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 04:08:45,460 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:08:45,460 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1753097883] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:08:45,460 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 04:08:45,460 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-06-07 04:08:45,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313585138] [2021-06-07 04:08:45,461 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-06-07 04:08:45,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 04:08:45,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-06-07 04:08:45,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2021-06-07 04:08:45,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:08:45,465 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 04:08:45,465 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 2.0) internal successors, (42), 20 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 04:08:45,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:45,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:45,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:08:45,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:45,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:45,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-07 04:08:45,800 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:08:45,801 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:08:45,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:08:45,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1855068570, now seen corresponding path program 2 times [2021-06-07 04:08:45,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:08:45,802 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505092931] [2021-06-07 04:08:45,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:08:45,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:08:46,201 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-07 04:08:46,203 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:08:46,203 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505092931] [2021-06-07 04:08:46,203 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505092931] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:08:46,204 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277785790] [2021-06-07 04:08:46,204 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:08:46,238 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-07 04:08:46,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 04:08:46,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 18 conjunts are in the unsatisfiable core [2021-06-07 04:08:46,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 04:08:47,152 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:08:47,153 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277785790] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:08:47,153 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 04:08:47,153 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 24 [2021-06-07 04:08:47,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819452970] [2021-06-07 04:08:47,154 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-07 04:08:47,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 04:08:47,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-07 04:08:47,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=484, Unknown=0, NotChecked=0, Total=600 [2021-06-07 04:08:47,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:08:47,156 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 04:08:47,156 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.04) internal successors, (51), 24 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 04:08:47,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:47,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:47,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-07 04:08:47,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:08:47,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:47,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:47,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-07 04:08:47,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-07 04:08:47,637 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:08:47,637 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:08:47,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:08:47,638 INFO L82 PathProgramCache]: Analyzing trace with hash -439799326, now seen corresponding path program 3 times [2021-06-07 04:08:47,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:08:47,638 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461486638] [2021-06-07 04:08:47,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:08:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:08:48,007 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-06-07 04:08:48,008 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:08:48,008 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461486638] [2021-06-07 04:08:48,008 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461486638] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:08:48,008 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018765047] [2021-06-07 04:08:48,009 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:08:48,059 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-06-07 04:08:48,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 04:08:48,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 21 conjunts are in the unsatisfiable core [2021-06-07 04:08:48,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 04:08:48,843 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2021-06-07 04:08:49,198 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:08:49,199 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018765047] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:08:49,199 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 04:08:49,199 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 16] total 26 [2021-06-07 04:08:49,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480214327] [2021-06-07 04:08:49,200 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-07 04:08:49,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 04:08:49,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-07 04:08:49,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=592, Unknown=0, NotChecked=0, Total=702 [2021-06-07 04:08:49,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:08:49,201 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 04:08:49,201 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.037037037037037) internal successors, (55), 26 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 04:08:49,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:49,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:49,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-07 04:08:49,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-07 04:08:49,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:08:49,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:49,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:49,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-07 04:08:49,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-07 04:08:49,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 04:08:49,705 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:08:49,705 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:08:49,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:08:49,705 INFO L82 PathProgramCache]: Analyzing trace with hash 360522794, now seen corresponding path program 4 times [2021-06-07 04:08:49,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:08:49,706 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063748194] [2021-06-07 04:08:49,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:08:49,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:08:50,137 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-06-07 04:08:50,137 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:08:50,138 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063748194] [2021-06-07 04:08:50,138 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063748194] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:08:50,138 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500578623] [2021-06-07 04:08:50,138 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:08:50,172 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-07 04:08:50,173 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 04:08:50,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 26 conjunts are in the unsatisfiable core [2021-06-07 04:08:50,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 04:08:50,954 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2021-06-07 04:08:51,595 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 68 [2021-06-07 04:08:51,844 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:08:51,845 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500578623] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:08:51,845 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 04:08:51,845 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 20] total 32 [2021-06-07 04:08:51,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477585952] [2021-06-07 04:08:51,845 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-06-07 04:08:51,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 04:08:51,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-06-07 04:08:51,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=927, Unknown=0, NotChecked=0, Total=1056 [2021-06-07 04:08:51,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:08:51,846 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 04:08:51,847 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 1.9696969696969697) internal successors, (65), 32 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 04:08:51,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:51,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:51,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-07 04:08:51,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-07 04:08:51,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-07 04:08:51,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:08:53,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:53,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:53,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-07 04:08:53,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-07 04:08:53,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 04:08:53,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-07 04:08:53,585 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-06-07 04:08:53,585 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:08:53,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:08:53,585 INFO L82 PathProgramCache]: Analyzing trace with hash 602910442, now seen corresponding path program 5 times [2021-06-07 04:08:53,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:08:53,586 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301018712] [2021-06-07 04:08:53,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:08:53,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:08:54,158 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-06-07 04:08:54,159 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:08:54,159 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301018712] [2021-06-07 04:08:54,159 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301018712] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:08:54,159 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506181736] [2021-06-07 04:08:54,159 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:08:54,198 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-06-07 04:08:54,198 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 04:08:54,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 29 conjunts are in the unsatisfiable core [2021-06-07 04:08:54,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 04:08:55,815 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:08:55,815 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1506181736] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:08:55,815 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 04:08:55,815 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 22] total 33 [2021-06-07 04:08:55,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743569645] [2021-06-07 04:08:55,816 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-07 04:08:55,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 04:08:55,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-07 04:08:55,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=1001, Unknown=0, NotChecked=0, Total=1122 [2021-06-07 04:08:55,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:08:55,817 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 04:08:55,817 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.0588235294117645) internal successors, (70), 33 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 04:08:55,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:55,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:55,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-07 04:08:55,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-07 04:08:55,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-07 04:08:55,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-06-07 04:08:55,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:08:56,226 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 25 [2021-06-07 04:08:58,081 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-06-07 04:08:58,381 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2021-06-07 04:08:58,987 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2021-06-07 04:08:59,229 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 55 [2021-06-07 04:08:59,957 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-06-07 04:09:00,545 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2021-06-07 04:09:00,876 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2021-06-07 04:09:01,036 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 50 [2021-06-07 04:09:02,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:09:02,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:09:02,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-07 04:09:02,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-07 04:09:02,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-07 04:09:02,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-06-07 04:09:02,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-06-07 04:09:02,720 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:09:02,727 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-07 04:09:02,731 INFO L202 PluginConnector]: Adding new model threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.06 04:09:02 BasicIcfg [2021-06-07 04:09:02,732 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-07 04:09:02,733 INFO L168 Benchmark]: Toolchain (without parser) took 18861.72 ms. Allocated memory was 352.3 MB in the beginning and 509.6 MB in the end (delta: 157.3 MB). Free memory was 332.4 MB in the beginning and 464.4 MB in the end (delta: -132.0 MB). Peak memory consumption was 25.7 MB. Max. memory is 16.0 GB. [2021-06-07 04:09:02,733 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 352.3 MB. Free memory was 333.5 MB in the beginning and 333.5 MB in the end (delta: 76.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-07 04:09:02,733 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.95 ms. Allocated memory is still 352.3 MB. Free memory was 332.3 MB in the beginning and 330.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-07 04:09:02,734 INFO L168 Benchmark]: Boogie Preprocessor took 13.51 ms. Allocated memory is still 352.3 MB. Free memory was 330.9 MB in the beginning and 330.0 MB in the end (delta: 917.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-07 04:09:02,734 INFO L168 Benchmark]: RCFGBuilder took 311.03 ms. Allocated memory is still 352.3 MB. Free memory was 329.9 MB in the beginning and 317.9 MB in the end (delta: 12.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-06-07 04:09:02,734 INFO L168 Benchmark]: TraceAbstraction took 18509.97 ms. Allocated memory was 352.3 MB in the beginning and 509.6 MB in the end (delta: 157.3 MB). Free memory was 317.4 MB in the beginning and 464.4 MB in the end (delta: -146.9 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.0 GB. [2021-06-07 04:09:02,734 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 0.12 ms. Allocated memory is still 352.3 MB. Free memory was 333.5 MB in the beginning and 333.5 MB in the end (delta: 76.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 21.95 ms. Allocated memory is still 352.3 MB. Free memory was 332.3 MB in the beginning and 330.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.51 ms. Allocated memory is still 352.3 MB. Free memory was 330.9 MB in the beginning and 330.0 MB in the end (delta: 917.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 311.03 ms. Allocated memory is still 352.3 MB. Free memory was 329.9 MB in the beginning and 317.9 MB in the end (delta: 12.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 18509.97 ms. Allocated memory was 352.3 MB in the beginning and 509.6 MB in the end (delta: 157.3 MB). Free memory was 317.4 MB in the beginning and 464.4 MB in the end (delta: -146.9 MB). Peak memory consumption was 11.0 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: 1173, positive: 842, positive conditional: 842, positive unconditional: 0, negative: 331, negative conditional: 331, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 897, positive: 842, positive conditional: 842, positive unconditional: 0, negative: 55, negative conditional: 55, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 897, positive: 768, positive conditional: 0, positive unconditional: 768, negative: 129, negative conditional: 0, negative unconditional: 129, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 28, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 28, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 80, positive: 14, positive conditional: 12, positive unconditional: 2, negative: 66, negative conditional: 63, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 239, positive: 26, positive conditional: 23, positive unconditional: 3, negative: 212, negative conditional: 171, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 897, positive: 743, positive conditional: 0, positive unconditional: 743, negative: 126, negative conditional: 0, negative unconditional: 126, unknown: 28, unknown conditional: 0, unknown unconditional: 28] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 37, Positive conditional cache size: 12, Positive unconditional cache size: 25, Negative cache size: 66, Negative conditional cache size: 63, Negative unconditional cache size: 3, SemanticConditionEliminator.Independence Queries: [ total: 589, positive: 74, positive conditional: 74, positive unconditional: 0, negative: 515, negative conditional: 232, negative unconditional: 283, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 589, positive: 74, positive conditional: 74, positive unconditional: 0, negative: 515, negative conditional: 232, negative unconditional: 283, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 80, positive: 14, positive conditional: 12, positive unconditional: 2, negative: 66, negative conditional: 63, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 239, positive: 26, positive conditional: 23, positive unconditional: 3, negative: 212, negative conditional: 171, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 589, positive: 62, positive conditional: 62, positive unconditional: 0, negative: 452, negative conditional: 169, negative unconditional: 283, unknown: 75, unknown conditional: 75, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 37, Positive conditional cache size: 12, Positive unconditional cache size: 25, Negative cache size: 66, Negative conditional cache size: 63, Negative unconditional cache size: 3, Eliminated conditions: 283, SemanticConditionEliminator.Independence Queries: [ total: 589, positive: 74, positive conditional: 74, positive unconditional: 0, negative: 515, negative conditional: 232, negative unconditional: 283, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 589, positive: 74, positive conditional: 74, positive unconditional: 0, negative: 515, negative conditional: 232, negative unconditional: 283, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 80, positive: 14, positive conditional: 12, positive unconditional: 2, negative: 66, negative conditional: 63, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 239, positive: 26, positive conditional: 23, positive unconditional: 3, negative: 212, negative conditional: 171, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 589, positive: 62, positive conditional: 62, positive unconditional: 0, negative: 452, negative conditional: 169, negative unconditional: 283, unknown: 75, unknown conditional: 75, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 37, Positive conditional cache size: 12, Positive unconditional cache size: 25, Negative cache size: 66, Negative conditional cache size: 63, Negative unconditional cache size: 3, Eliminated conditions: 283, SemanticConditionEliminator.Independence Queries: [ total: 589, positive: 74, positive conditional: 74, positive unconditional: 0, negative: 515, negative conditional: 232, negative unconditional: 283, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 589, positive: 74, positive conditional: 74, positive unconditional: 0, negative: 515, negative conditional: 232, negative unconditional: 283, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 80, positive: 14, positive conditional: 12, positive unconditional: 2, negative: 66, negative conditional: 63, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 239, positive: 26, positive conditional: 23, positive unconditional: 3, negative: 212, negative conditional: 171, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 589, positive: 62, positive conditional: 62, positive unconditional: 0, negative: 452, negative conditional: 169, negative unconditional: 283, unknown: 75, unknown conditional: 75, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 37, Positive conditional cache size: 12, Positive unconditional cache size: 25, Negative cache size: 66, Negative conditional cache size: 63, Negative unconditional cache size: 3, Eliminated conditions: 283, SemanticConditionEliminator.Independence Queries: [ total: 589, positive: 74, positive conditional: 74, positive unconditional: 0, negative: 515, negative conditional: 232, negative unconditional: 283, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 589, positive: 74, positive conditional: 74, positive unconditional: 0, negative: 515, negative conditional: 232, negative unconditional: 283, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 80, positive: 14, positive conditional: 12, positive unconditional: 2, negative: 66, negative conditional: 63, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 239, positive: 26, positive conditional: 23, positive unconditional: 3, negative: 212, negative conditional: 171, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 589, positive: 62, positive conditional: 62, positive unconditional: 0, negative: 452, negative conditional: 169, negative unconditional: 283, unknown: 75, unknown conditional: 75, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 37, Positive conditional cache size: 12, Positive unconditional cache size: 25, Negative cache size: 66, Negative conditional cache size: 63, Negative unconditional cache size: 3, Eliminated conditions: 283, SemanticConditionEliminator.Independence Queries: [ total: 589, positive: 74, positive conditional: 74, positive unconditional: 0, negative: 515, negative conditional: 232, negative unconditional: 283, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 589, positive: 74, positive conditional: 74, positive unconditional: 0, negative: 515, negative conditional: 232, negative unconditional: 283, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 80, positive: 14, positive conditional: 12, positive unconditional: 2, negative: 66, negative conditional: 63, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 239, positive: 26, positive conditional: 23, positive unconditional: 3, negative: 212, negative conditional: 171, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 589, positive: 62, positive conditional: 62, positive unconditional: 0, negative: 452, negative conditional: 169, negative unconditional: 283, unknown: 75, unknown conditional: 75, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 37, Positive conditional cache size: 12, Positive unconditional cache size: 25, Negative cache size: 66, Negative conditional cache size: 63, Negative unconditional cache size: 3, Eliminated conditions: 283, SemanticConditionEliminator.Independence Queries: [ total: 589, positive: 74, positive conditional: 74, positive unconditional: 0, negative: 515, negative conditional: 232, negative unconditional: 283, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 589, positive: 74, positive conditional: 74, positive unconditional: 0, negative: 515, negative conditional: 232, negative unconditional: 283, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 80, positive: 14, positive conditional: 12, positive unconditional: 2, negative: 66, negative conditional: 63, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 239, positive: 26, positive conditional: 23, positive unconditional: 3, negative: 212, negative conditional: 171, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 589, positive: 62, positive conditional: 62, positive unconditional: 0, negative: 452, negative conditional: 169, negative unconditional: 283, unknown: 75, unknown conditional: 75, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 37, Positive conditional cache size: 12, Positive unconditional cache size: 25, Negative cache size: 66, Negative conditional cache size: 63, Negative unconditional cache size: 3, Eliminated conditions: 283, SemanticConditionEliminator.Independence Queries: [ total: 589, positive: 74, positive conditional: 74, positive unconditional: 0, negative: 515, negative conditional: 232, negative unconditional: 283, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 589, positive: 74, positive conditional: 74, positive unconditional: 0, negative: 515, negative conditional: 232, negative unconditional: 283, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 80, positive: 14, positive conditional: 12, positive unconditional: 2, negative: 66, negative conditional: 63, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 239, positive: 26, positive conditional: 23, positive unconditional: 3, negative: 212, negative conditional: 171, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 589, positive: 62, positive conditional: 62, positive unconditional: 0, negative: 452, negative conditional: 169, negative unconditional: 283, unknown: 75, unknown conditional: 75, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 37, Positive conditional cache size: 12, Positive unconditional cache size: 25, Negative cache size: 66, Negative conditional cache size: 63, Negative unconditional cache size: 3, Eliminated conditions: 283 ], Maximal queried relation: 7, Independence queries for same thread: 276 - PositiveResult [Line: 55]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 34 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18354.6ms, OverallIterations: 7, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.4ms, PartialOrderReductionTime: 9007.3ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 179, 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: 39.9ms SsaConstructionTime, 207.2ms SatisfiabilityAnalysisTime, 7675.1ms InterpolantComputationTime, 360 NumberOfCodeBlocks, 360 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 348 ConstructedInterpolants, 0 QuantifiedInterpolants, 12421 SizeOfPredicates, 25 NumberOfNonLiveVariables, 248 ConjunctsInSsa, 109 ConjunctsInUnsatCore, 12 InterpolantComputations, 2 PerfectInterpolantSequences, 86/587 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...