/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-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x6.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-12 08:16:39,571 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-12 08:16:39,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-12 08:16:39,597 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-12 08:16:39,597 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-12 08:16:39,598 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-12 08:16:39,600 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-12 08:16:39,607 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-12 08:16:39,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-12 08:16:39,615 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-12 08:16:39,616 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-12 08:16:39,617 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-12 08:16:39,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-12 08:16:39,618 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-12 08:16:39,619 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-12 08:16:39,620 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-12 08:16:39,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-12 08:16:39,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-12 08:16:39,626 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-12 08:16:39,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-12 08:16:39,633 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-12 08:16:39,634 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-12 08:16:39,635 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-12 08:16:39,636 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-12 08:16:39,639 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-12 08:16:39,639 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-12 08:16:39,639 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-12 08:16:39,640 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-12 08:16:39,640 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-12 08:16:39,641 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-12 08:16:39,641 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-12 08:16:39,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-12 08:16:39,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-12 08:16:39,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-12 08:16:39,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-12 08:16:39,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-12 08:16:39,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-12 08:16:39,643 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-12 08:16:39,644 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-12 08:16:39,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-12 08:16:39,644 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-12 08:16:39,647 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-Delay.epf [2021-03-12 08:16:39,678 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-12 08:16:39,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-12 08:16:39,678 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-12 08:16:39,678 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-12 08:16:39,680 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-12 08:16:39,680 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-12 08:16:39,681 INFO L138 SettingsManager]: * Use SBE=true [2021-03-12 08:16:39,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-12 08:16:39,681 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-12 08:16:39,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-12 08:16:39,682 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-12 08:16:39,682 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-12 08:16:39,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-12 08:16:39,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-12 08:16:39,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-12 08:16:39,682 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-12 08:16:39,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-12 08:16:39,682 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-12 08:16:39,682 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-12 08:16:39,683 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-12 08:16:39,683 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-12 08:16:39,683 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-12 08:16:39,683 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-12 08:16:39,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-12 08:16:39,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-12 08:16:39,683 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-12 08:16:39,683 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-12 08:16:39,683 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-12 08:16:39,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-12 08:16:39,684 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-12 08:16:39,684 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-03-12 08:16:39,684 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-12 08:16:39,684 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-03-12 08:16:39,684 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-12 08:16:39,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-12 08:16:39,932 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-12 08:16:39,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-12 08:16:39,934 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-12 08:16:39,935 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-12 08:16:39,936 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x6.wvr.bpl [2021-03-12 08:16:39,936 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x6.wvr.bpl' [2021-03-12 08:16:40,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-12 08:16:40,082 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-12 08:16:40,082 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-12 08:16:40,082 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-12 08:16:40,082 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-12 08:16:40,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 08:16:40" (1/1) ... [2021-03-12 08:16:40,095 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 08:16:40" (1/1) ... [2021-03-12 08:16:40,100 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-12 08:16:40,101 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-12 08:16:40,101 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-12 08:16:40,101 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-12 08:16:40,106 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 08:16:40" (1/1) ... [2021-03-12 08:16:40,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 08:16:40" (1/1) ... [2021-03-12 08:16:40,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 08:16:40" (1/1) ... [2021-03-12 08:16:40,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 08:16:40" (1/1) ... [2021-03-12 08:16:40,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 08:16:40" (1/1) ... [2021-03-12 08:16:40,110 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 08:16:40" (1/1) ... [2021-03-12 08:16:40,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 08:16:40" (1/1) ... [2021-03-12 08:16:40,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-12 08:16:40,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-12 08:16:40,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-12 08:16:40,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-12 08:16:40,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 08:16:40" (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 [2021-03-12 08:16:40,181 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-12 08:16:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-12 08:16:40,181 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-12 08:16:40,181 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-12 08:16:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-12 08:16:40,181 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-12 08:16:40,181 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-12 08:16:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-12 08:16:40,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-12 08:16:40,181 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-12 08:16:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-12 08:16:40,182 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-12 08:16:40,182 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-03-12 08:16:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-03-12 08:16:40,182 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-03-12 08:16:40,182 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-12 08:16:40,380 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-12 08:16:40,380 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-12 08:16:40,381 INFO L202 PluginConnector]: Adding new model exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 08:16:40 BoogieIcfgContainer [2021-03-12 08:16:40,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-12 08:16:40,382 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-12 08:16:40,382 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-12 08:16:40,384 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-12 08:16:40,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 08:16:40" (1/2) ... [2021-03-12 08:16:40,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@295b58b8 and model type exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.03 08:16:40, skipping insertion in model container [2021-03-12 08:16:40,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 08:16:40" (2/2) ... [2021-03-12 08:16:40,386 INFO L111 eAbstractionObserver]: Analyzing ICFG exp2x6.wvr.bpl [2021-03-12 08:16:40,389 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-12 08:16:40,389 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-12 08:16:40,391 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-12 08:16:40,392 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-12 08:16:40,433 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-12 08:16:40,460 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 [2021-03-12 08:16:40,489 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-12 08:16:40,489 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-12 08:16:40,489 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-12 08:16:40,489 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-12 08:16:40,489 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-12 08:16:40,490 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-12 08:16:40,490 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-12 08:16:40,490 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-12 08:16:40,660 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 08:16:40,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 08:16:40,664 INFO L82 PathProgramCache]: Analyzing trace with hash 244483839, now seen corresponding path program 1 times [2021-03-12 08:16:40,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 08:16:40,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567140973] [2021-03-12 08:16:40,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 08:16:40,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 08:16:40,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 08:16:40,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567140973] [2021-03-12 08:16:40,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 08:16:40,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-12 08:16:40,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10711877] [2021-03-12 08:16:40,799 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-12 08:16:40,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 08:16:40,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-12 08:16:40,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-12 08:16:40,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 08:16:40,808 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 08:16:40,809 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 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) [2021-03-12 08:16:40,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 08:16:40,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 08:16:40,896 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-12 08:16:40,896 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 08:16:40,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 08:16:40,897 INFO L82 PathProgramCache]: Analyzing trace with hash -383760858, now seen corresponding path program 1 times [2021-03-12 08:16:40,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 08:16:40,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176195647] [2021-03-12 08:16:40,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 08:16:40,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 08:16:40,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 08:16:40,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176195647] [2021-03-12 08:16:40,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85825188] [2021-03-12 08:16:40,925 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 [2021-03-12 08:16:40,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 08:16:40,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2021-03-12 08:16:40,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 08:16:41,030 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 08:16:41,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 08:16:41,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-03-12 08:16:41,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168604508] [2021-03-12 08:16:41,031 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-12 08:16:41,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 08:16:41,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-12 08:16:41,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-12 08:16:41,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 08:16:41,032 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 08:16:41,032 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) [2021-03-12 08:16:41,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 08:16:41,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 08:16:41,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 08:16:41,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 08:16:41,299 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 08:16:41,300 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 08:16:41,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 08:16:41,300 INFO L82 PathProgramCache]: Analyzing trace with hash 2087689650, now seen corresponding path program 1 times [2021-03-12 08:16:41,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 08:16:41,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276866053] [2021-03-12 08:16:41,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 08:16:41,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 08:16:41,443 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 08:16:41,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276866053] [2021-03-12 08:16:41,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015580898] [2021-03-12 08:16:41,443 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 [2021-03-12 08:16:41,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 08:16:41,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 21 conjunts are in the unsatisfiable core [2021-03-12 08:16:41,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2021-03-12 08:30:49,588 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 08:30:49,590 WARN L545 AbstractCegarLoop]: Verification canceled [2021-03-12 08:30:49,603 WARN L224 ceAbstractionStarter]: Timeout [2021-03-12 08:30:49,604 INFO L202 PluginConnector]: Adding new model exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.03 08:30:49 BasicIcfg [2021-03-12 08:30:49,604 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-12 08:30:49,605 INFO L168 Benchmark]: Toolchain (without parser) took 849526.00 ms. Allocated memory was 255.9 MB in the beginning and 935.3 MB in the end (delta: 679.5 MB). Free memory was 236.9 MB in the beginning and 695.3 MB in the end (delta: -458.4 MB). Peak memory consumption was 958.1 MB. Max. memory is 16.0 GB. [2021-03-12 08:30:49,605 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-12 08:30:49,605 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.13 ms. Allocated memory is still 255.9 MB. Free memory was 236.4 MB in the beginning and 234.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-12 08:30:49,605 INFO L168 Benchmark]: Boogie Preprocessor took 10.24 ms. Allocated memory is still 255.9 MB. Free memory was 234.8 MB in the beginning and 233.8 MB in the end (delta: 969.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-12 08:30:49,605 INFO L168 Benchmark]: RCFGBuilder took 269.54 ms. Allocated memory is still 255.9 MB. Free memory was 233.8 MB in the beginning and 235.6 MB in the end (delta: -1.8 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.0 GB. [2021-03-12 08:30:49,605 INFO L168 Benchmark]: TraceAbstraction took 849221.99 ms. Allocated memory was 255.9 MB in the beginning and 935.3 MB in the end (delta: 679.5 MB). Free memory was 234.8 MB in the beginning and 695.3 MB in the end (delta: -460.4 MB). Peak memory consumption was 954.5 MB. Max. memory is 16.0 GB. [2021-03-12 08:30:49,606 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 0.10 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 18.13 ms. Allocated memory is still 255.9 MB. Free memory was 236.4 MB in the beginning and 234.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 10.24 ms. Allocated memory is still 255.9 MB. Free memory was 234.8 MB in the beginning and 233.8 MB in the end (delta: 969.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 269.54 ms. Allocated memory is still 255.9 MB. Free memory was 233.8 MB in the beginning and 235.6 MB in the end (delta: -1.8 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 849221.99 ms. Allocated memory was 255.9 MB in the beginning and 935.3 MB in the end (delta: 679.5 MB). Free memory was 234.8 MB in the beginning and 695.3 MB in the end (delta: -460.4 MB). Peak memory consumption was 954.5 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: 11456, positive: 10858, positive conditional: 10858, positive unconditional: 0, negative: 598, negative conditional: 598, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 10858, positive: 10858, positive conditional: 10858, 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: 10858, positive: 10858, positive conditional: 0, positive unconditional: 10858, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 291, positive: 291, positive conditional: 0, positive unconditional: 291, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 291, positive: 291, positive conditional: 0, positive unconditional: 291, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.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] , SemanticIndependenceRelation.Query Time [ms]: [ 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] ], Cache Queries: [ total: 10858, positive: 10567, positive conditional: 0, positive unconditional: 10567, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 291, unknown conditional: 0, unknown unconditional: 291] , Statistics on independence cache: Total cache size (in pairs): 291, Positive cache size: 291, Positive conditional cache size: 0, Positive unconditional cache size: 291, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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: 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] , SemanticIndependenceRelation.Query Time [ms]: [ 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] , 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): 291, Positive cache size: 291, Positive conditional cache size: 0, Positive unconditional cache size: 291, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, 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: 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] , SemanticIndependenceRelation.Query Time [ms]: [ 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] , 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): 291, Positive cache size: 291, Positive conditional cache size: 0, Positive unconditional cache size: 291, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 ], Maximal queried relation: 0, Independence queries for same thread: 598 - 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 450 iterations of DualJunctionQuantifierElimination. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 849123.5ms, OverallIterations: 3, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 20.3ms, PartialOrderReductionTime: 298.4ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 8, 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: 14.4ms SsaConstructionTime, 42.8ms SatisfiabilityAnalysisTime, 146.4ms InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 238 SizeOfPredicates, 1 NumberOfNonLiveVariables, 67 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 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