/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/security.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a865e3bea3ade1065a4c95009cfa501fe03c5538-a865e3b [2021-02-19 23:53:28,463 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 23:53:28,466 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 23:53:28,503 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-19 23:53:28,562 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 [2021-02-19 23:53:28,592 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 23:53:28,593 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 23:53:28,593 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-02-19 23:53:28,593 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-02-19 23:53:28,596 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 23:53:28,596 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 23:53:28,596 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 23:53:28,597 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 23:53:28,597 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 23:53:28,597 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 23:53:28,598 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 23:53:28,598 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 23:53:28,598 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 23:53:28,598 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 23:53:28,598 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 23:53:28,598 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 23:53:28,598 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 23:53:28,599 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 23:53:28,599 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 23:53:28,599 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 23:53:28,599 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 23:53:28,599 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-19 23:53:28,599 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 23:53:28,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 23:53:28,600 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 23:53:28,600 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 23:53:28,600 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 23:53:28,600 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 23:53:28,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 23:53:28,600 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-02-19 23:53:28,601 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-02-19 23:53:28,601 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 23:53:28,601 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-02-19 23:53:28,601 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 23:53:28,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 23:53:28,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 23:53:28,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 23:53:28,959 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-02-19 23:53:28,960 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-02-19 23:53:28,961 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/security.wvr.bpl [2021-02-19 23:53:28,961 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/security.wvr.bpl' [2021-02-19 23:53:28,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 23:53:28,995 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 23:53:28,998 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-02-19 23:53:28,998 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-02-19 23:53:28,998 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-02-19 23:53:29,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "security.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:53:28" (1/1) ... [2021-02-19 23:53:29,017 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "security.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:53:28" (1/1) ... [2021-02-19 23:53:29,023 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-02-19 23:53:29,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 23:53:29,026 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 23:53:29,026 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 23:53:29,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "security.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:53:28" (1/1) ... [2021-02-19 23:53:29,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "security.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:53:28" (1/1) ... [2021-02-19 23:53:29,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "security.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:53:28" (1/1) ... [2021-02-19 23:53:29,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "security.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:53:28" (1/1) ... [2021-02-19 23:53:29,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "security.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:53:28" (1/1) ... [2021-02-19 23:53:29,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "security.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:53:28" (1/1) ... [2021-02-19 23:53:29,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "security.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:53:28" (1/1) ... [2021-02-19 23:53:29,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 23:53:29,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 23:53:29,042 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 23:53:29,042 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 23:53:29,043 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "security.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:53:28" (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 [2021-02-19 23:53:29,110 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-02-19 23:53:29,110 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-02-19 23:53:29,110 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-02-19 23:53:29,111 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-02-19 23:53:29,111 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-02-19 23:53:29,111 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-02-19 23:53:29,111 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-02-19 23:53:29,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 23:53:29,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 23:53:29,112 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-02-19 23:53:29,251 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 23:53:29,251 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-19 23:53:29,252 INFO L202 PluginConnector]: Adding new model security.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 11:53:29 BoogieIcfgContainer [2021-02-19 23:53:29,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 23:53:29,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 23:53:29,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 23:53:29,256 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 23:53:29,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "security.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:53:28" (1/2) ... [2021-02-19 23:53:29,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54b70a18 and model type security.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 11:53:29, skipping insertion in model container [2021-02-19 23:53:29,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "security.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 11:53:29" (2/2) ... [2021-02-19 23:53:29,259 INFO L111 eAbstractionObserver]: Analyzing ICFG security.wvr.bpl [2021-02-19 23:53:29,263 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-02-19 23:53:29,263 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 23:53:29,266 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 23:53:29,266 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-02-19 23:53:29,292 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-02-19 23:53:29,306 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) [2021-02-19 23:53:29,356 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 23:53:29,356 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 23:53:29,356 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 23:53:29,356 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 23:53:29,356 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 23:53:29,357 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 23:53:29,357 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 23:53:29,357 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 [2021-02-19 23:53:29,403 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:53:29,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:53:29,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1437752368, now seen corresponding path program 1 times [2021-02-19 23:53:29,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:53:29,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286797816] [2021-02-19 23:53:29,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:53:29,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:53:29,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:53:29,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286797816] [2021-02-19 23:53:29,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 23:53:29,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 23:53:29,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185147545] [2021-02-19 23:53:29,588 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 23:53:29,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:53:29,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 23:53:29,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 23:53:29,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:29,608 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:53:29,610 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 23:53:29,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:29,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:29,709 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 23:53:29,709 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:53:29,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:53:29,710 INFO L82 PathProgramCache]: Analyzing trace with hash 756324009, now seen corresponding path program 1 times [2021-02-19 23:53:29,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:53:29,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21390942] [2021-02-19 23:53:29,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:53:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:53:29,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:53:29,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21390942] [2021-02-19 23:53:29,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 23:53:29,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 23:53:29,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230390772] [2021-02-19 23:53:29,752 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 23:53:29,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:53:29,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 23:53:29,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 23:53:29,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:29,755 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:53:29,755 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 23:53:29,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:29,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:29,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:29,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:29,787 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-19 23:53:29,788 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:53:29,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:53:29,788 INFO L82 PathProgramCache]: Analyzing trace with hash -305323223, now seen corresponding path program 1 times [2021-02-19 23:53:29,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:53:29,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375620855] [2021-02-19 23:53:29,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:53:29,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:53:29,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:53:29,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375620855] [2021-02-19 23:53:29,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 23:53:29,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-19 23:53:29,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849415900] [2021-02-19 23:53:29,916 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-19 23:53:29,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:53:29,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-19 23:53:29,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-19 23:53:29,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:29,921 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:53:29,922 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 23:53:29,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:29,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:29,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:30,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:30,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:30,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:53:30,068 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-19 23:53:30,069 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:53:30,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:53:30,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1405040011, now seen corresponding path program 1 times [2021-02-19 23:53:30,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:53:30,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695789206] [2021-02-19 23:53:30,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:53:30,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 23:53:30,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 23:53:30,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695789206] [2021-02-19 23:53:30,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 23:53:30,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-19 23:53:30,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809836971] [2021-02-19 23:53:30,190 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-19 23:53:30,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 23:53:30,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-19 23:53:30,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-19 23:53:30,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:30,193 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 23:53:30,194 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 23:53:30,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:30,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:30,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:53:30,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 23:53:30,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:30,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 23:53:30,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 23:53:30,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 23:53:30,337 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-19 23:53:30,337 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 23:53:30,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 23:53:30,338 INFO L82 PathProgramCache]: Analyzing trace with hash -977133561, now seen corresponding path program 1 times [2021-02-19 23:53:30,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 23:53:30,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52865103] [2021-02-19 23:53:30,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 23:53:30,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 23:53:30,350 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 23:53:30,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 23:53:30,355 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 23:53:30,367 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-19 23:53:30,367 INFO L607 BasicCegarLoop]: Counterexample might be feasible [2021-02-19 23:53:30,368 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-19 23:53:30,384 INFO L202 PluginConnector]: Adding new model security.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 11:53:30 BasicIcfg [2021-02-19 23:53:30,384 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 23:53:30,385 INFO L168 Benchmark]: Toolchain (without parser) took 1391.60 ms. Allocated memory was 255.9 MB in the beginning and 373.3 MB in the end (delta: 117.4 MB). Free memory was 236.4 MB in the beginning and 329.5 MB in the end (delta: -93.1 MB). Peak memory consumption was 25.3 MB. Max. memory is 16.0 GB. [2021-02-19 23:53:30,385 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory was 237.4 MB in the beginning and 237.3 MB in the end (delta: 92.7 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-19 23:53:30,386 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.76 ms. Allocated memory is still 255.9 MB. Free memory was 235.8 MB in the beginning and 234.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-19 23:53:30,386 INFO L168 Benchmark]: Boogie Preprocessor took 15.42 ms. Allocated memory is still 255.9 MB. Free memory was 234.4 MB in the beginning and 233.4 MB in the end (delta: 965.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-02-19 23:53:30,387 INFO L168 Benchmark]: RCFGBuilder took 210.94 ms. Allocated memory is still 255.9 MB. Free memory was 233.4 MB in the beginning and 237.1 MB in the end (delta: -3.7 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.0 GB. [2021-02-19 23:53:30,387 INFO L168 Benchmark]: TraceAbstraction took 1129.98 ms. Allocated memory was 255.9 MB in the beginning and 373.3 MB in the end (delta: 117.4 MB). Free memory was 236.6 MB in the beginning and 329.5 MB in the end (delta: -92.9 MB). Peak memory consumption was 24.3 MB. Max. memory is 16.0 GB. [2021-02-19 23:53:30,389 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 255.9 MB. Free memory was 237.4 MB in the beginning and 237.3 MB in the end (delta: 92.7 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 26.76 ms. Allocated memory is still 255.9 MB. Free memory was 235.8 MB in the beginning and 234.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 15.42 ms. Allocated memory is still 255.9 MB. Free memory was 234.4 MB in the beginning and 233.4 MB in the end (delta: 965.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 210.94 ms. Allocated memory is still 255.9 MB. Free memory was 233.4 MB in the beginning and 237.1 MB in the end (delta: -3.7 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1129.98 ms. Allocated memory was 255.9 MB in the beginning and 373.3 MB in the end (delta: 117.4 MB). Free memory was 236.6 MB in the beginning and 329.5 MB in the end (delta: -92.9 MB). Peak memory consumption was 24.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 68]: assertion can be violated assertion can be violated We found a FailurePath: [L63] FORK 0 fork 1 thread1(); [L21] 1 z_2 := 1; VAL [z_2=1] [L23] 1 assume h_3; VAL [h_3=true, z_2=1] [L24] 1 x_1 := 1; VAL [h_3=true, x_1=1, z_2=1] [L36] 1 l_4 := x_1 + y_0; VAL [h_3=true, l_4=1, x_1=1, y_0=0, z_2=1] [L64] FORK 0 fork 2, 2 thread2(); VAL [h_3=true, l_4=1, x_1=1, y_0=0, z_2=1] [L42] 2 z_6 := 1; VAL [h_3=true, l_4=1, x_1=1, y_0=0, z_2=1, z_6=1] [L57] 2 l_8 := x_5 + y_0; VAL [h_3=true, l_4=1, l_8=0, x_1=1, x_5=0, y_0=0, z_2=1, z_6=1] [L65] JOIN 1 join 1; VAL [h_3=true, l_4=1, l_8=0, x_1=1, x_5=0, y_0=0, z_2=1, z_6=1] [L66] JOIN 2 join 2, 2; VAL [h_3=true, l_4=1, l_8=0, x_1=1, x_5=0, y_0=0, z_2=1, z_6=1] [L67] 0 assume !(l_4 == l_8); VAL [h_3=true, l_4=1, l_8=0, x_1=1, x_5=0, y_0=0, z_2=1, z_6=1] [L68] 0 assert false; VAL [h_3=true, l_4=1, l_8=0, x_1=1, x_5=0, y_0=0, z_2=1, z_6=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.0s, OverallIterations: 5, 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, 0.2s InterpolantComputationTime, 92 NumberOfCodeBlocks, 92 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 5139 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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 incorrect! Received shutdown request...