/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-Persistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x6.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d47b94137d5c7dd60722882962a90fb345e61909-d47b941 [2021-05-04 00:23:58,674 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-04 00:23:58,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-04 00:23:58,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-04 00:23:58,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-04 00:23:58,707 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-04 00:23:58,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-04 00:23:58,714 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-04 00:23:58,716 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-04 00:23:58,719 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-04 00:23:58,719 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-04 00:23:58,720 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-04 00:23:58,720 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-04 00:23:58,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-04 00:23:58,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-04 00:23:58,723 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-04 00:23:58,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-04 00:23:58,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-04 00:23:58,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-04 00:23:58,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-04 00:23:58,732 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-04 00:23:58,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-04 00:23:58,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-04 00:23:58,735 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-04 00:23:58,739 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-05-04 00:23:58,740 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-05-04 00:23:58,740 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-05-04 00:23:58,741 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-05-04 00:23:58,741 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-05-04 00:23:58,742 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2021-05-04 00:23:58,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-04 00:23:58,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-04 00:23:58,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-04 00:23:58,747 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-Persistent-NoLbe.epf [2021-05-04 00:23:58,773 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-04 00:23:58,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-04 00:23:58,773 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-04 00:23:58,774 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-04 00:23:58,775 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-04 00:23:58,775 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-04 00:23:58,775 INFO L138 SettingsManager]: * Use SBE=true [2021-05-04 00:23:58,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-04 00:23:58,776 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-04 00:23:58,776 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-04 00:23:58,777 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-04 00:23:58,777 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-04 00:23:58,777 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-04 00:23:58,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-04 00:23:58,777 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-04 00:23:58,777 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-04 00:23:58,777 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-04 00:23:58,777 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-04 00:23:58,777 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-04 00:23:58,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-04 00:23:58,778 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-04 00:23:58,778 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-04 00:23:58,778 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-04 00:23:58,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-04 00:23:58,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-04 00:23:58,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-04 00:23:58,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-04 00:23:58,778 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-04 00:23:58,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-04 00:23:58,779 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-04 00:23:58,779 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-05-04 00:23:58,779 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-04 00:23:58,779 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SETS [2021-05-04 00:23:58,779 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-04 00:23:59,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-04 00:23:59,026 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-04 00:23:59,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-04 00:23:59,028 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-05-04 00:23:59,028 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-05-04 00:23:59,029 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x6.wvr.bpl [2021-05-04 00:23:59,029 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x6.wvr.bpl' [2021-05-04 00:23:59,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-04 00:23:59,056 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-04 00:23:59,057 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-04 00:23:59,057 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-04 00:23:59,057 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-04 00:23:59,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:23:59" (1/1) ... [2021-05-04 00:23:59,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:23:59" (1/1) ... [2021-05-04 00:23:59,073 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-04 00:23:59,074 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-04 00:23:59,074 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-04 00:23:59,074 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-04 00:23:59,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:23:59" (1/1) ... [2021-05-04 00:23:59,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:23:59" (1/1) ... [2021-05-04 00:23:59,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:23:59" (1/1) ... [2021-05-04 00:23:59,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:23:59" (1/1) ... [2021-05-04 00:23:59,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:23:59" (1/1) ... [2021-05-04 00:23:59,083 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:23:59" (1/1) ... [2021-05-04 00:23:59,083 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:23:59" (1/1) ... [2021-05-04 00:23:59,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-04 00:23:59,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-04 00:23:59,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-04 00:23:59,085 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-04 00:23:59,089 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:23:59" (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 [2021-05-04 00:23:59,139 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-05-04 00:23:59,139 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-05-04 00:23:59,139 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-05-04 00:23:59,139 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-05-04 00:23:59,139 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-05-04 00:23:59,140 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-05-04 00:23:59,140 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-05-04 00:23:59,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-04 00:23:59,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-04 00:23:59,140 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-05-04 00:23:59,140 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-05-04 00:23:59,140 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-05-04 00:23:59,140 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-05-04 00:23:59,141 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-05-04 00:23:59,141 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-05-04 00:23:59,141 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-04 00:23:59,265 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-04 00:23:59,265 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-05-04 00:23:59,266 INFO L202 PluginConnector]: Adding new model exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 12:23:59 BoogieIcfgContainer [2021-05-04 00:23:59,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-04 00:23:59,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-04 00:23:59,268 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-04 00:23:59,269 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-04 00:23:59,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:23:59" (1/2) ... [2021-05-04 00:23:59,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bd42d0f and model type exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 12:23:59, skipping insertion in model container [2021-05-04 00:23:59,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 12:23:59" (2/2) ... [2021-05-04 00:23:59,271 INFO L111 eAbstractionObserver]: Analyzing ICFG exp2x6.wvr.bpl [2021-05-04 00:23:59,274 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-04 00:23:59,274 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-04 00:23:59,277 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-04 00:23:59,277 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-04 00:23:59,313 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-05-04 00:23:59,342 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 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 [2021-05-04 00:23:59,388 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-04 00:23:59,388 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-04 00:23:59,388 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-04 00:23:59,388 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-04 00:23:59,388 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-04 00:23:59,388 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-04 00:23:59,388 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-04 00:23:59,388 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-04 00:23:59,646 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 00:23:59,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 00:23:59,649 INFO L82 PathProgramCache]: Analyzing trace with hash -113798543, now seen corresponding path program 1 times [2021-05-04 00:23:59,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 00:23:59,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529042645] [2021-05-04 00:23:59,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 00:23:59,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 00:23:59,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 00:23:59,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529042645] [2021-05-04 00:23:59,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-04 00:23:59,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-04 00:23:59,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021638562] [2021-05-04 00:23:59,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-04 00:23:59,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 00:23:59,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-04 00:23:59,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-04 00:23:59,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:23:59,803 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 00:23:59,804 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-05-04 00:23:59,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:23:59,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-04 00:23:59,861 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-04 00:23:59,861 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 00:23:59,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 00:23:59,864 INFO L82 PathProgramCache]: Analyzing trace with hash -906324044, now seen corresponding path program 1 times [2021-05-04 00:23:59,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 00:23:59,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710721538] [2021-05-04 00:23:59,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 00:23:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 00:24:00,009 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 00:24:00,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710721538] [2021-05-04 00:24:00,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138753469] [2021-05-04 00:24:00,009 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 [2021-05-04 00:24:00,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 00:24:00,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 21 conjunts are in the unsatisfiable core [2021-05-04 00:24:00,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2021-05-04 00:38:19,218 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-04 00:38:19,219 WARN L545 AbstractCegarLoop]: Verification canceled [2021-05-04 00:38:19,224 WARN L224 ceAbstractionStarter]: Timeout [2021-05-04 00:38:19,224 INFO L202 PluginConnector]: Adding new model exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.05 12:38:19 BasicIcfg [2021-05-04 00:38:19,224 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-04 00:38:19,225 INFO L168 Benchmark]: Toolchain (without parser) took 860168.74 ms. Allocated memory was 327.2 MB in the beginning and 910.2 MB in the end (delta: 583.0 MB). Free memory was 306.9 MB in the beginning and 256.6 MB in the end (delta: 50.2 MB). Peak memory consumption was 932.9 MB. Max. memory is 16.0 GB. [2021-05-04 00:38:19,225 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 327.2 MB. Free memory is still 308.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-05-04 00:38:19,225 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.61 ms. Allocated memory is still 327.2 MB. Free memory was 306.8 MB in the beginning and 305.3 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-04 00:38:19,225 INFO L168 Benchmark]: Boogie Preprocessor took 10.23 ms. Allocated memory is still 327.2 MB. Free memory was 305.3 MB in the beginning and 304.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-04 00:38:19,225 INFO L168 Benchmark]: RCFGBuilder took 181.84 ms. Allocated memory is still 327.2 MB. Free memory was 304.2 MB in the beginning and 291.7 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-05-04 00:38:19,226 INFO L168 Benchmark]: TraceAbstraction took 859956.86 ms. Allocated memory was 327.2 MB in the beginning and 910.2 MB in the end (delta: 583.0 MB). Free memory was 291.3 MB in the beginning and 256.6 MB in the end (delta: 34.6 MB). Peak memory consumption was 916.1 MB. Max. memory is 16.0 GB. [2021-05-04 00:38:19,226 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 0.11 ms. Allocated memory is still 327.2 MB. Free memory is still 308.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 16.61 ms. Allocated memory is still 327.2 MB. Free memory was 306.8 MB in the beginning and 305.3 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 10.23 ms. Allocated memory is still 327.2 MB. Free memory was 305.3 MB in the beginning and 304.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 181.84 ms. Allocated memory is still 327.2 MB. Free memory was 304.2 MB in the beginning and 291.7 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 859956.86 ms. Allocated memory was 327.2 MB in the beginning and 910.2 MB in the end (delta: 583.0 MB). Free memory was 291.3 MB in the beginning and 256.6 MB in the end (delta: 34.6 MB). Peak memory consumption was 916.1 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: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 922, positive: 890, positive conditional: 0, positive unconditional: 890, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 576, positive: 544, positive conditional: 0, positive unconditional: 544, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 576, positive: 501, positive conditional: 0, positive unconditional: 501, negative: 75, negative conditional: 0, negative unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 75, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 75, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 207, positive: 112, positive conditional: 0, positive unconditional: 112, negative: 95, negative conditional: 0, negative unconditional: 95, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 922, positive: 346, positive conditional: 0, positive unconditional: 346, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 576, unknown conditional: 0, unknown unconditional: 576] , Statistics on independence cache: Total cache size (in pairs): 576, Positive cache size: 544, Positive conditional cache size: 0, Positive unconditional cache size: 544, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 75, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 207, positive: 112, positive conditional: 0, positive unconditional: 112, negative: 95, negative conditional: 0, negative unconditional: 95, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 576, Positive cache size: 544, Positive conditional cache size: 0, Positive unconditional cache size: 544, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32, Eliminated conditions: 0 ], Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 231, Number of persistent set computation: 84, Number of trivial persistent sets: 58, Underlying independence relation: CachedIndependenceRelation.Independence Queries: [ total: 922, positive: 890, positive conditional: 0, positive unconditional: 890, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 576, positive: 544, positive conditional: 0, positive unconditional: 544, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 576, positive: 501, positive conditional: 0, positive unconditional: 501, negative: 75, negative conditional: 0, negative unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 75, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 75, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 207, positive: 112, positive conditional: 0, positive unconditional: 112, negative: 95, negative conditional: 0, negative unconditional: 95, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 922, positive: 346, positive conditional: 0, positive unconditional: 346, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 576, unknown conditional: 0, unknown unconditional: 576] , Statistics on independence cache: Total cache size (in pairs): 576, Positive cache size: 544, Positive conditional cache size: 0, Positive unconditional cache size: 544, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32 - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 72). Cancelled while PartialOrderCegarLoop was analyzing trace of length 30 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while QuantifierPusher was running 459 iterations of DualJunctionQuantifierElimination. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 859857.0ms, OverallIterations: 2, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.7ms, PartialOrderReductionTime: 306.9ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 5, 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: 2.3ms SsaConstructionTime, 22.3ms SatisfiabilityAnalysisTime, 63.8ms InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 45 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 1/1 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown