/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-Sleep-NoLbe-New_States.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/figure1-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a865e3bea3ade1065a4c95009cfa501fe03c5538-a865e3b [2021-02-20 00:26:28,202 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-20 00:26:28,204 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-20 00:26:28,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-20 00:26:28,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-20 00:26:28,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-20 00:26:28,252 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-20 00:26:28,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-20 00:26:28,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-20 00:26:28,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-20 00:26:28,258 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-20 00:26:28,264 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-20 00:26:28,265 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-20 00:26:28,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-20 00:26:28,267 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-20 00:26:28,268 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-20 00:26:28,273 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-20 00:26:28,279 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-20 00:26:28,280 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-20 00:26:28,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-20 00:26:28,284 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-Sleep-NoLbe-New_States.epf [2021-02-20 00:26:28,311 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-20 00:26:28,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-20 00:26:28,311 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-02-20 00:26:28,311 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-02-20 00:26:28,313 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-20 00:26:28,314 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-20 00:26:28,314 INFO L138 SettingsManager]: * Use SBE=true [2021-02-20 00:26:28,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-20 00:26:28,314 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-20 00:26:28,314 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-20 00:26:28,315 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-20 00:26:28,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-20 00:26:28,315 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-20 00:26:28,315 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-20 00:26:28,315 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-20 00:26:28,315 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-20 00:26:28,315 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-20 00:26:28,315 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-20 00:26:28,315 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-20 00:26:28,316 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-20 00:26:28,316 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-20 00:26:28,316 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-20 00:26:28,316 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-20 00:26:28,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-20 00:26:28,316 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-20 00:26:28,316 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-20 00:26:28,316 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-20 00:26:28,316 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-20 00:26:28,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-20 00:26:28,316 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-02-20 00:26:28,316 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-02-20 00:26:28,317 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-20 00:26:28,317 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-02-20 00:26:28,317 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-20 00:26:28,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-20 00:26:28,585 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-20 00:26:28,587 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-20 00:26:28,588 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-02-20 00:26:28,588 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-02-20 00:26:28,589 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/figure1-alt.wvr.bpl [2021-02-20 00:26:28,589 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/figure1-alt.wvr.bpl' [2021-02-20 00:26:28,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-20 00:26:28,615 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-20 00:26:28,618 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-02-20 00:26:28,618 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-02-20 00:26:28,618 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-02-20 00:26:28,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:26:28" (1/1) ... [2021-02-20 00:26:28,634 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:26:28" (1/1) ... [2021-02-20 00:26:28,641 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-02-20 00:26:28,643 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-20 00:26:28,643 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-20 00:26:28,643 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-20 00:26:28,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:26:28" (1/1) ... [2021-02-20 00:26:28,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:26:28" (1/1) ... [2021-02-20 00:26:28,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:26:28" (1/1) ... [2021-02-20 00:26:28,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:26:28" (1/1) ... [2021-02-20 00:26:28,652 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:26:28" (1/1) ... [2021-02-20 00:26:28,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:26:28" (1/1) ... [2021-02-20 00:26:28,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:26:28" (1/1) ... [2021-02-20 00:26:28,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-20 00:26:28,658 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-20 00:26:28,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-20 00:26:28,658 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-20 00:26:28,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:26:28" (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 [2021-02-20 00:26:28,723 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-02-20 00:26:28,724 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-02-20 00:26:28,724 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-02-20 00:26:28,724 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-02-20 00:26:28,724 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-02-20 00:26:28,724 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-02-20 00:26:28,724 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-02-20 00:26:28,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-20 00:26:28,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-20 00:26:28,725 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-02-20 00:26:28,840 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-20 00:26:28,840 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-20 00:26:28,841 INFO L202 PluginConnector]: Adding new model figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 12:26:28 BoogieIcfgContainer [2021-02-20 00:26:28,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-20 00:26:28,842 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-20 00:26:28,843 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-20 00:26:28,844 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-20 00:26:28,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:26:28" (1/2) ... [2021-02-20 00:26:28,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2897d906 and model type figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 12:26:28, skipping insertion in model container [2021-02-20 00:26:28,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 12:26:28" (2/2) ... [2021-02-20 00:26:28,847 INFO L111 eAbstractionObserver]: Analyzing ICFG figure1-alt.wvr.bpl [2021-02-20 00:26:28,850 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-02-20 00:26:28,850 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-20 00:26:28,853 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-20 00:26:28,853 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-02-20 00:26:28,873 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-02-20 00:26:28,885 INFO L253 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) [2021-02-20 00:26:28,911 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-20 00:26:28,911 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-20 00:26:28,912 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-20 00:26:28,912 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-20 00:26:28,912 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-20 00:26:28,912 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-20 00:26:28,912 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-20 00:26:28,912 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-02-20 00:26:28,989 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:26:28,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:26:28,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1121195020, now seen corresponding path program 1 times [2021-02-20 00:26:28,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:26:28,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348200734] [2021-02-20 00:26:28,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:26:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:26:29,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:26:29,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348200734] [2021-02-20 00:26:29,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-20 00:26:29,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-20 00:26:29,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279315101] [2021-02-20 00:26:29,175 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-20 00:26:29,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:26:29,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-20 00:26:29,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-02-20 00:26:29,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:26:29,189 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:26:29,191 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 8 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) [2021-02-20 00:26:29,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:26:29,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:26:29,374 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-20 00:26:29,374 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:26:29,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:26:29,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1057113994, now seen corresponding path program 1 times [2021-02-20 00:26:29,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:26:29,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988050044] [2021-02-20 00:26:29,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:26:29,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:26:29,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:26:29,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988050044] [2021-02-20 00:26:29,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935430712] [2021-02-20 00:26:29,498 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) [2021-02-20 00:26:29,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:26:29,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 13 conjunts are in the unsatisfiable core [2021-02-20 00:26:29,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 00:26:29,726 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:26:29,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:26:29,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-02-20 00:26:29,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123421768] [2021-02-20 00:26:29,728 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-02-20 00:26:29,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:26:29,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-02-20 00:26:29,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2021-02-20 00:26:29,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:26:29,729 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:26:29,729 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 16 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) [2021-02-20 00:26:29,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:26:29,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:26:29,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:26:29,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:26:30,181 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 00:26:30,181 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:26:30,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:26:30,182 INFO L82 PathProgramCache]: Analyzing trace with hash 916856118, now seen corresponding path program 1 times [2021-02-20 00:26:30,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:26:30,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130391781] [2021-02-20 00:26:30,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:26:30,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:26:30,305 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-20 00:26:30,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130391781] [2021-02-20 00:26:30,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414901545] [2021-02-20 00:26:30,305 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 [2021-02-20 00:26:30,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:26:30,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 21 conjunts are in the unsatisfiable core [2021-02-20 00:26:30,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:26:30,517 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:26:30,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:26:30,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2021-02-20 00:26:30,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658074238] [2021-02-20 00:26:30,518 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-02-20 00:26:30,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:26:30,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-02-20 00:26:30,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2021-02-20 00:26:30,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:26:30,519 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:26:30,519 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.0) internal successors, (40), 19 states have internal predecessors, (40), 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) [2021-02-20 00:26:30,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:26:30,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:26:30,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:26:31,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-20 00:26:31,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-20 00:26:31,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-02-20 00:26:31,492 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 00:26:31,496 INFO L202 PluginConnector]: Adding new model figure1-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 12:26:31 BasicIcfg [2021-02-20 00:26:31,496 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-20 00:26:31,502 INFO L168 Benchmark]: Toolchain (without parser) took 2885.06 ms. Allocated memory is still 358.6 MB. Free memory was 338.6 MB in the beginning and 152.1 MB in the end (delta: 186.5 MB). Peak memory consumption was 188.4 MB. Max. memory is 16.0 GB. [2021-02-20 00:26:31,505 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 358.6 MB. Free memory was 339.7 MB in the beginning and 339.6 MB in the end (delta: 136.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-20 00:26:31,506 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.98 ms. Allocated memory is still 358.6 MB. Free memory was 338.2 MB in the beginning and 336.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-20 00:26:31,506 INFO L168 Benchmark]: Boogie Preprocessor took 13.86 ms. Allocated memory is still 358.6 MB. Free memory was 336.7 MB in the beginning and 335.8 MB in the end (delta: 910.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-02-20 00:26:31,506 INFO L168 Benchmark]: RCFGBuilder took 183.91 ms. Allocated memory is still 358.6 MB. Free memory was 335.6 MB in the beginning and 324.3 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-02-20 00:26:31,506 INFO L168 Benchmark]: TraceAbstraction took 2653.92 ms. Allocated memory is still 358.6 MB. Free memory was 323.9 MB in the beginning and 152.1 MB in the end (delta: 171.8 MB). Peak memory consumption was 173.8 MB. Max. memory is 16.0 GB. [2021-02-20 00:26:31,507 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 0.14 ms. Allocated memory is still 358.6 MB. Free memory was 339.7 MB in the beginning and 339.6 MB in the end (delta: 136.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 23.98 ms. Allocated memory is still 358.6 MB. Free memory was 338.2 MB in the beginning and 336.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.86 ms. Allocated memory is still 358.6 MB. Free memory was 336.7 MB in the beginning and 335.8 MB in the end (delta: 910.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 183.91 ms. Allocated memory is still 358.6 MB. Free memory was 335.6 MB in the beginning and 324.3 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2653.92 ms. Allocated memory is still 358.6 MB. Free memory was 323.9 MB in the beginning and 152.1 MB in the end (delta: 171.8 MB). Peak memory consumption was 173.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 50]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 3, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 86 ConstructedInterpolants, 0 QuantifiedInterpolants, 18946 SizeOfPredicates, 10 NumberOfNonLiveVariables, 77 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 1/12 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 proved your program to be correct! Received shutdown request...