/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-DelaySleepPersistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-7.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d47b94137d5c7dd60722882962a90fb345e61909-d47b941 [2021-05-03 21:56:49,215 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-03 21:56:49,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-03 21:56:49,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-03 21:56:49,235 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-03 21:56:49,236 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-03 21:56:49,237 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-03 21:56:49,238 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-03 21:56:49,239 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-03 21:56:49,239 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-03 21:56:49,240 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-03 21:56:49,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-03 21:56:49,241 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-03 21:56:49,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-03 21:56:49,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-03 21:56:49,242 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-03 21:56:49,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-03 21:56:49,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-03 21:56:49,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-03 21:56:49,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-03 21:56:49,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-03 21:56:49,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-03 21:56:49,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-03 21:56:49,248 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-03 21:56:49,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-05-03 21:56:49,249 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-05-03 21:56:49,250 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-05-03 21:56:49,250 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-05-03 21:56:49,250 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-05-03 21:56:49,251 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-05-03 21:56:49,251 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-05-03 21:56:49,251 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-05-03 21:56:49,252 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-05-03 21:56:49,252 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-05-03 21:56:49,253 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-05-03 21:56:49,253 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-05-03 21:56:49,253 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-05-03 21:56:49,254 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-05-03 21:56:49,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-03 21:56:49,254 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-03 21:56:49,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-03 21:56:49,255 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-DelaySleepPersistent-NoLbe.epf [2021-05-03 21:56:49,276 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-03 21:56:49,276 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-03 21:56:49,277 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-03 21:56:49,277 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-03 21:56:49,278 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-03 21:56:49,278 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-03 21:56:49,278 INFO L138 SettingsManager]: * Use SBE=true [2021-05-03 21:56:49,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-03 21:56:49,278 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-03 21:56:49,278 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-03 21:56:49,278 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-03 21:56:49,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-03 21:56:49,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-03 21:56:49,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-03 21:56:49,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-03 21:56:49,279 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-03 21:56:49,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-03 21:56:49,279 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-03 21:56:49,279 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-03 21:56:49,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-03 21:56:49,280 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-03 21:56:49,280 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-03 21:56:49,280 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-03 21:56:49,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-03 21:56:49,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-03 21:56:49,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-03 21:56:49,280 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-03 21:56:49,280 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-03 21:56:49,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-03 21:56:49,281 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-03 21:56:49,281 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-05-03 21:56:49,281 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-03 21:56:49,281 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_DELAY_SET [2021-05-03 21:56:49,281 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-03 21:56:49,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-03 21:56:49,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-03 21:56:49,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-03 21:56:49,527 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-05-03 21:56:49,528 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-05-03 21:56:49,528 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-7.wvr.bpl [2021-05-03 21:56:49,528 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-7.wvr.bpl' [2021-05-03 21:56:49,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-03 21:56:49,572 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-03 21:56:49,572 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-03 21:56:49,572 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-03 21:56:49,573 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-03 21:56:49,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:56:49" (1/1) ... [2021-05-03 21:56:49,586 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:56:49" (1/1) ... [2021-05-03 21:56:49,591 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-03 21:56:49,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-03 21:56:49,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-03 21:56:49,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-03 21:56:49,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:56:49" (1/1) ... [2021-05-03 21:56:49,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:56:49" (1/1) ... [2021-05-03 21:56:49,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:56:49" (1/1) ... [2021-05-03 21:56:49,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:56:49" (1/1) ... [2021-05-03 21:56:49,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:56:49" (1/1) ... [2021-05-03 21:56:49,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:56:49" (1/1) ... [2021-05-03 21:56:49,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:56:49" (1/1) ... [2021-05-03 21:56:49,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-03 21:56:49,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-03 21:56:49,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-03 21:56:49,622 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-03 21:56:49,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:56:49" (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 [2021-05-03 21:56:49,673 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-05-03 21:56:49,674 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-05-03 21:56:49,674 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-05-03 21:56:49,674 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-05-03 21:56:49,674 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-05-03 21:56:49,674 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-05-03 21:56:49,674 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-05-03 21:56:49,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-03 21:56:49,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-03 21:56:49,674 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-05-03 21:56:49,674 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-05-03 21:56:49,674 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-05-03 21:56:49,675 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-05-03 21:56:49,675 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-05-03 21:56:49,675 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-05-03 21:56:49,675 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2021-05-03 21:56:49,675 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-05-03 21:56:49,675 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-05-03 21:56:49,675 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2021-05-03 21:56:49,675 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2021-05-03 21:56:49,675 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2021-05-03 21:56:49,675 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread7 given in one single declaration [2021-05-03 21:56:49,675 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2021-05-03 21:56:49,676 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2021-05-03 21:56:49,676 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-03 21:56:49,930 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-03 21:56:49,930 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-05-03 21:56:49,932 INFO L202 PluginConnector]: Adding new model ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 09:56:49 BoogieIcfgContainer [2021-05-03 21:56:49,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-03 21:56:49,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-03 21:56:49,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-03 21:56:49,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-03 21:56:49,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:56:49" (1/2) ... [2021-05-03 21:56:49,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7727ede3 and model type ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 09:56:49, skipping insertion in model container [2021-05-03 21:56:49,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 09:56:49" (2/2) ... [2021-05-03 21:56:49,937 INFO L111 eAbstractionObserver]: Analyzing ICFG ticket-7.wvr.bpl [2021-05-03 21:56:49,946 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-03 21:56:49,946 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-03 21:56:49,949 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-03 21:56:49,950 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-03 21:56:50,027 INFO L149 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2021-05-03 21:56:50,039 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 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 [2021-05-03 21:56:50,095 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-03 21:56:50,096 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-03 21:56:50,096 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-03 21:56:50,096 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-03 21:56:50,096 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-03 21:56:50,096 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-03 21:56:50,096 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-03 21:56:50,096 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-03 21:56:50,339 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-05-03 21:56:50,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 21:56:50,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1598145443, now seen corresponding path program 1 times [2021-05-03 21:56:50,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 21:56:50,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318899868] [2021-05-03 21:56:50,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 21:56:50,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:56:50,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:56:50,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318899868] [2021-05-03 21:56:50,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 21:56:50,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-03 21:56:50,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192753175] [2021-05-03 21:56:50,572 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-03 21:56:50,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 21:56:50,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-03 21:56:50,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-03 21:56:50,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:56:50,585 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 21:56:50,586 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 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) [2021-05-03 21:56:50,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:56:50,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:56:50,647 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-03 21:56:50,656 INFO L202 PluginConnector]: Adding new model ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.05 09:56:50 BasicIcfg [2021-05-03 21:56:50,656 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-03 21:56:50,657 INFO L168 Benchmark]: Toolchain (without parser) took 1085.22 ms. Allocated memory is still 320.9 MB. Free memory was 299.9 MB in the beginning and 248.7 MB in the end (delta: 51.2 MB). Peak memory consumption was 52.8 MB. Max. memory is 16.0 GB. [2021-05-03 21:56:50,658 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 320.9 MB. Free memory is still 301.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-05-03 21:56:50,662 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.84 ms. Allocated memory is still 320.9 MB. Free memory was 299.8 MB in the beginning and 298.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-03 21:56:50,662 INFO L168 Benchmark]: Boogie Preprocessor took 28.90 ms. Allocated memory is still 320.9 MB. Free memory was 298.4 MB in the beginning and 297.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-03 21:56:50,663 INFO L168 Benchmark]: RCFGBuilder took 310.57 ms. Allocated memory is still 320.9 MB. Free memory was 297.3 MB in the beginning and 304.7 MB in the end (delta: -7.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.0 GB. [2021-05-03 21:56:50,663 INFO L168 Benchmark]: TraceAbstraction took 723.19 ms. Allocated memory is still 320.9 MB. Free memory was 304.7 MB in the beginning and 248.7 MB in the end (delta: 56.0 MB). Peak memory consumption was 56.6 MB. Max. memory is 16.0 GB. [2021-05-03 21:56:50,666 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 320.9 MB. Free memory is still 301.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 18.84 ms. Allocated memory is still 320.9 MB. Free memory was 299.8 MB in the beginning and 298.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.90 ms. Allocated memory is still 320.9 MB. Free memory was 298.4 MB in the beginning and 297.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 310.57 ms. Allocated memory is still 320.9 MB. Free memory was 297.3 MB in the beginning and 304.7 MB in the end (delta: -7.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 723.19 ms. Allocated memory is still 320.9 MB. Free memory was 304.7 MB in the beginning and 248.7 MB in the end (delta: 56.0 MB). Peak memory consumption was 56.6 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: 82, positive: 82, positive conditional: 82, 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: 82, positive: 82, positive conditional: 82, 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: 1674, positive: 1659, positive conditional: 0, positive unconditional: 1659, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1308, positive: 1293, positive conditional: 0, positive unconditional: 1293, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1308, positive: 1260, positive conditional: 0, positive unconditional: 1260, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 48, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 48, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 165, positive: 143, positive conditional: 0, positive unconditional: 143, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1674, positive: 366, positive conditional: 0, positive unconditional: 366, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1308, unknown conditional: 0, unknown unconditional: 1308] , Statistics on independence cache: Total cache size (in pairs): 1308, Positive cache size: 1293, Positive conditional cache size: 0, Positive unconditional cache size: 1293, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, 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: 48, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 165, positive: 143, positive conditional: 0, positive unconditional: 143, negative: 22, negative conditional: 0, negative unconditional: 22, 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): 1308, Positive cache size: 1293, Positive conditional cache size: 0, Positive unconditional cache size: 1293, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Eliminated conditions: 0 ], Maximal queried relation: 0, Independence queries for same thread: 0 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 207, Number of persistent set computation: 98, Number of trivial persistent sets: 57, Underlying independence relation: CachedIndependenceRelation.Independence Queries: [ total: 1674, positive: 1659, positive conditional: 0, positive unconditional: 1659, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1308, positive: 1293, positive conditional: 0, positive unconditional: 1293, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1308, positive: 1260, positive conditional: 0, positive unconditional: 1260, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 48, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 48, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 165, positive: 143, positive conditional: 0, positive unconditional: 143, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1674, positive: 366, positive conditional: 0, positive unconditional: 366, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1308, unknown conditional: 0, unknown unconditional: 1308] , Statistics on independence cache: Total cache size (in pairs): 1308, Positive cache size: 1293, Positive conditional cache size: 0, Positive unconditional cache size: 1293, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - PositiveResult [Line: 125]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 590.8ms, OverallIterations: 1, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.8ms, PartialOrderReductionTime: 290.4ms, 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: 5.3ms SsaConstructionTime, 70.4ms SatisfiabilityAnalysisTime, 106.1ms InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 296 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 correct! Received shutdown request...