/usr/bin/java -Xmx8000000000 -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-NewStatesSleepPersistentFixedOrder-NoLbe-Random7777.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/threaded-sum-2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-15 00:01:29,507 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-15 00:01:29,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-15 00:01:29,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-15 00:01:29,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-15 00:01:29,544 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-15 00:01:29,546 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-15 00:01:29,550 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-15 00:01:29,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-15 00:01:29,556 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-15 00:01:29,556 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-15 00:01:29,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-15 00:01:29,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-15 00:01:29,559 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-15 00:01:29,560 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-15 00:01:29,561 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-15 00:01:29,563 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-15 00:01:29,563 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-15 00:01:29,565 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-15 00:01:29,569 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-15 00:01:29,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-15 00:01:29,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-15 00:01:29,572 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-15 00:01:29,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-15 00:01:29,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-15 00:01:29,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-15 00:01:29,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-15 00:01:29,582 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-15 00:01:29,582 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-15 00:01:29,583 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-15 00:01:29,583 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-15 00:01:29,584 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-15 00:01:29,585 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-15 00:01:29,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-15 00:01:29,586 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-15 00:01:29,586 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-15 00:01:29,587 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-15 00:01:29,587 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-15 00:01:29,587 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-15 00:01:29,587 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-15 00:01:29,588 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-15 00:01:29,591 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-NewStatesSleepPersistentFixedOrder-NoLbe-Random7777.epf [2021-07-15 00:01:29,639 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-15 00:01:29,640 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-15 00:01:29,640 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-15 00:01:29,640 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-15 00:01:29,642 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-15 00:01:29,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-15 00:01:29,642 INFO L138 SettingsManager]: * Use SBE=true [2021-07-15 00:01:29,643 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-15 00:01:29,643 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-15 00:01:29,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-15 00:01:29,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-15 00:01:29,644 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-15 00:01:29,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-15 00:01:29,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-15 00:01:29,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-15 00:01:29,644 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-15 00:01:29,644 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-15 00:01:29,644 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-15 00:01:29,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-15 00:01:29,644 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-15 00:01:29,645 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-15 00:01:29,645 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-15 00:01:29,645 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-15 00:01:29,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-15 00:01:29,645 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-15 00:01:29,645 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-15 00:01:29,645 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-15 00:01:29,645 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-15 00:01:29,645 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-07-15 00:01:29,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-15 00:01:29,646 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-15 00:01:29,646 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-15 00:01:29,646 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-15 00:01:29,646 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-15 00:01:29,646 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-15 00:01:29,646 INFO L138 SettingsManager]: * Random seed used by POR DFS order=7777 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-15 00:01:29,931 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-15 00:01:29,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-15 00:01:29,947 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-15 00:01:29,948 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-15 00:01:29,949 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-15 00:01:29,949 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/threaded-sum-2.wvr.bpl [2021-07-15 00:01:29,950 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/threaded-sum-2.wvr.bpl' [2021-07-15 00:01:29,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-15 00:01:29,967 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-15 00:01:29,968 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-15 00:01:29,968 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-15 00:01:29,968 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-15 00:01:29,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.07 12:01:29" (1/1) ... [2021-07-15 00:01:29,981 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.07 12:01:29" (1/1) ... [2021-07-15 00:01:29,987 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-15 00:01:29,988 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-15 00:01:29,988 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-15 00:01:29,988 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-15 00:01:29,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.07 12:01:29" (1/1) ... [2021-07-15 00:01:29,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.07 12:01:29" (1/1) ... [2021-07-15 00:01:29,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.07 12:01:29" (1/1) ... [2021-07-15 00:01:29,994 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.07 12:01:29" (1/1) ... [2021-07-15 00:01:29,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.07 12:01:29" (1/1) ... [2021-07-15 00:01:29,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.07 12:01:29" (1/1) ... [2021-07-15 00:01:29,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.07 12:01:29" (1/1) ... [2021-07-15 00:01:29,999 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-15 00:01:29,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-15 00:01:29,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-15 00:01:30,000 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-15 00:01:30,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.07 12:01:29" (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 [2021-07-15 00:01:30,074 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-15 00:01:30,074 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-15 00:01:30,074 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-15 00:01:30,074 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-15 00:01:30,074 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-15 00:01:30,074 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-15 00:01:30,074 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-15 00:01:30,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-15 00:01:30,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-15 00:01:30,075 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-15 00:01:30,224 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-15 00:01:30,225 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-15 00:01:30,226 INFO L202 PluginConnector]: Adding new model threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.07 12:01:30 BoogieIcfgContainer [2021-07-15 00:01:30,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-15 00:01:30,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-15 00:01:30,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-15 00:01:30,250 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-15 00:01:30,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.07 12:01:29" (1/2) ... [2021-07-15 00:01:30,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13296397 and model type threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.07 12:01:30, skipping insertion in model container [2021-07-15 00:01:30,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.07 12:01:30" (2/2) ... [2021-07-15 00:01:30,252 INFO L111 eAbstractionObserver]: Analyzing ICFG threaded-sum-2.wvr.bpl [2021-07-15 00:01:30,255 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-15 00:01:30,256 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-15 00:01:30,256 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-15 00:01:30,256 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-15 00:01:30,289 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-07-15 00:01:30,316 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-15 00:01:30,446 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-15 00:01:30,446 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-15 00:01:30,446 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-15 00:01:30,447 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-15 00:01:30,447 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-15 00:01:30,447 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-15 00:01:30,447 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-15 00:01:30,448 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-15 00:01:30,565 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-15 00:01:30,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-15 00:01:30,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1128408176, now seen corresponding path program 1 times [2021-07-15 00:01:30,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-15 00:01:30,574 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566829725] [2021-07-15 00:01:30,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-15 00:01:30,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-15 00:01:30,712 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-15 00:01:30,713 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-15 00:01:30,713 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566829725] [2021-07-15 00:01:30,714 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566829725] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-15 00:01:30,714 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-15 00:01:30,714 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-15 00:01:30,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666343890] [2021-07-15 00:01:30,717 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-15 00:01:30,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-15 00:01:30,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-15 00:01:30,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-15 00:01:30,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-15 00:01:30,730 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-15 00:01:30,731 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-07-15 00:01:30,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-15 00:01:30,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-15 00:01:30,795 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-15 00:01:30,795 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-15 00:01:30,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-15 00:01:30,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1606691502, now seen corresponding path program 1 times [2021-07-15 00:01:30,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-15 00:01:30,797 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105913317] [2021-07-15 00:01:30,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-15 00:01:30,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-15 00:01:31,104 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-15 00:01:31,104 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-15 00:01:31,105 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105913317] [2021-07-15 00:01:31,105 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105913317] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-15 00:01:31,105 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010363344] [2021-07-15 00:01:31,106 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 [2021-07-15 00:01:31,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-15 00:01:31,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 16 conjunts are in the unsatisfiable core [2021-07-15 00:01:31,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-15 00:01:31,585 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-15 00:01:31,585 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010363344] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-15 00:01:31,585 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-15 00:01:31,585 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 23 [2021-07-15 00:01:31,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601768176] [2021-07-15 00:01:31,586 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-07-15 00:01:31,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-15 00:01:31,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-07-15 00:01:31,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=447, Unknown=0, NotChecked=0, Total=552 [2021-07-15 00:01:31,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-15 00:01:31,588 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-15 00:01:31,588 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 1.75) internal successors, (42), 23 states have internal predecessors, (42), 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) [2021-07-15 00:01:31,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-15 00:01:31,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-15 00:01:31,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-15 00:01:31,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-15 00:01:32,008 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-15 00:01:32,008 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-15 00:01:32,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-15 00:01:32,008 INFO L82 PathProgramCache]: Analyzing trace with hash -825621484, now seen corresponding path program 2 times [2021-07-15 00:01:32,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-15 00:01:32,009 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405349392] [2021-07-15 00:01:32,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-15 00:01:32,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-15 00:01:32,372 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-15 00:01:32,372 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-15 00:01:32,373 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405349392] [2021-07-15 00:01:32,373 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405349392] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-15 00:01:32,373 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251352635] [2021-07-15 00:01:32,373 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 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 [2021-07-15 00:01:32,398 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-15 00:01:32,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-15 00:01:32,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 19 conjunts are in the unsatisfiable core [2021-07-15 00:01:32,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-15 00:01:32,717 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-15 00:01:32,717 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251352635] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-15 00:01:32,717 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-15 00:01:32,717 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 26 [2021-07-15 00:01:32,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485880376] [2021-07-15 00:01:32,718 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-07-15 00:01:32,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-15 00:01:32,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-07-15 00:01:32,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=583, Unknown=0, NotChecked=0, Total=702 [2021-07-15 00:01:32,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-15 00:01:32,719 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-15 00:01:32,719 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 26 states have internal predecessors, (46), 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) [2021-07-15 00:01:32,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-15 00:01:32,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-15 00:01:32,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-15 00:01:33,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-15 00:01:33,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-15 00:01:33,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-15 00:01:33,502 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-15 00:01:33,503 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-15 00:01:33,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-15 00:01:33,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1299669424, now seen corresponding path program 3 times [2021-07-15 00:01:33,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-15 00:01:33,504 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282865191] [2021-07-15 00:01:33,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-15 00:01:33,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-15 00:01:33,744 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-15 00:01:33,745 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-15 00:01:33,745 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282865191] [2021-07-15 00:01:33,745 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282865191] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-15 00:01:33,745 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335907627] [2021-07-15 00:01:33,745 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-15 00:01:33,770 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-07-15 00:01:33,770 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-15 00:01:33,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 20 conjunts are in the unsatisfiable core [2021-07-15 00:01:33,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-15 00:01:34,144 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-15 00:01:34,144 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335907627] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-15 00:01:34,144 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-15 00:01:34,145 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 27 [2021-07-15 00:01:34,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516991590] [2021-07-15 00:01:34,145 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-15 00:01:34,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-15 00:01:34,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-15 00:01:34,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=640, Unknown=0, NotChecked=0, Total=756 [2021-07-15 00:01:34,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-15 00:01:34,146 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-15 00:01:34,146 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 1.7857142857142858) internal successors, (50), 27 states have internal predecessors, (50), 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) [2021-07-15 00:01:34,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-15 00:01:34,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-15 00:01:34,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-15 00:01:34,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-15 00:01:34,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-15 00:01:34,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-15 00:01:34,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-15 00:01:34,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-15 00:01:35,025 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-15 00:01:35,025 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-15 00:01:35,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-15 00:01:35,026 INFO L82 PathProgramCache]: Analyzing trace with hash 458486002, now seen corresponding path program 4 times [2021-07-15 00:01:35,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-15 00:01:35,026 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560829888] [2021-07-15 00:01:35,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-15 00:01:35,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-15 00:01:35,231 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-15 00:01:35,232 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-15 00:01:35,232 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560829888] [2021-07-15 00:01:35,232 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560829888] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-15 00:01:35,232 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548995396] [2021-07-15 00:01:35,232 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-15 00:01:35,295 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-15 00:01:35,295 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-15 00:01:35,295 WARN L261 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 24 conjunts are in the unsatisfiable core [2021-07-15 00:01:35,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-15 00:01:35,765 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-15 00:01:35,765 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548995396] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-15 00:01:35,765 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-15 00:01:35,765 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 31 [2021-07-15 00:01:35,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597123348] [2021-07-15 00:01:35,766 INFO L462 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-07-15 00:01:35,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-15 00:01:35,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-07-15 00:01:35,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=859, Unknown=0, NotChecked=0, Total=992 [2021-07-15 00:01:35,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-15 00:01:35,767 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-15 00:01:35,767 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 1.65625) internal successors, (53), 31 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) [2021-07-15 00:01:35,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-15 00:01:35,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-15 00:01:35,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-15 00:01:35,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-15 00:01:35,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-15 00:01:37,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-15 00:01:37,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-15 00:01:37,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-15 00:01:37,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-15 00:01:37,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-15 00:01:37,233 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-07-15 00:01:37,233 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-15 00:01:37,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-15 00:01:37,234 INFO L82 PathProgramCache]: Analyzing trace with hash 2051870678, now seen corresponding path program 5 times [2021-07-15 00:01:37,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-15 00:01:37,234 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379029279] [2021-07-15 00:01:37,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-15 00:01:37,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-15 00:01:37,525 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-07-15 00:01:37,525 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-15 00:01:37,525 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379029279] [2021-07-15 00:01:37,525 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379029279] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-15 00:01:37,525 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730183243] [2021-07-15 00:01:37,525 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-15 00:01:37,555 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-07-15 00:01:37,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-15 00:01:37,556 WARN L261 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 39 conjunts are in the unsatisfiable core [2021-07-15 00:01:37,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-15 00:01:38,525 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-15 00:01:38,526 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730183243] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-15 00:01:38,526 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-15 00:01:38,526 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 27] total 42 [2021-07-15 00:01:38,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154015959] [2021-07-15 00:01:38,526 INFO L462 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-07-15 00:01:38,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-15 00:01:38,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-07-15 00:01:38,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1625, Unknown=0, NotChecked=0, Total=1806 [2021-07-15 00:01:38,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-15 00:01:38,528 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-15 00:01:38,528 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 43 states, 43 states have (on average 1.7209302325581395) internal successors, (74), 42 states have internal predecessors, (74), 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) [2021-07-15 00:01:38,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-15 00:01:38,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-15 00:01:38,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-15 00:01:38,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-15 00:01:38,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-15 00:01:38,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-15 00:01:40,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-15 00:01:40,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-15 00:01:40,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-15 00:01:40,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-15 00:01:40,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-15 00:01:40,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-07-15 00:01:40,920 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-07-15 00:01:40,921 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-15 00:01:40,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-15 00:01:40,921 INFO L82 PathProgramCache]: Analyzing trace with hash 609827598, now seen corresponding path program 6 times [2021-07-15 00:01:40,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-15 00:01:40,921 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897831745] [2021-07-15 00:01:40,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-15 00:01:40,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-15 00:01:41,270 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 109 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-07-15 00:01:41,270 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-15 00:01:41,270 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897831745] [2021-07-15 00:01:41,270 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897831745] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-15 00:01:41,270 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555063777] [2021-07-15 00:01:41,270 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-15 00:01:41,394 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2021-07-15 00:01:41,394 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-15 00:01:41,395 WARN L261 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 49 conjunts are in the unsatisfiable core [2021-07-15 00:01:41,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-15 00:01:42,606 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 170 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-15 00:01:42,607 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555063777] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-15 00:01:42,607 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-15 00:01:42,607 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 32] total 48 [2021-07-15 00:01:42,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12430149] [2021-07-15 00:01:42,608 INFO L462 AbstractCegarLoop]: Interpolant automaton has 49 states [2021-07-15 00:01:42,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-15 00:01:42,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-07-15 00:01:42,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=2135, Unknown=0, NotChecked=0, Total=2352 [2021-07-15 00:01:42,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-15 00:01:42,609 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-15 00:01:42,609 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 49 states, 49 states have (on average 1.7346938775510203) internal successors, (85), 48 states have internal predecessors, (85), 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) [2021-07-15 00:01:42,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-15 00:01:42,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-15 00:01:42,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-15 00:01:42,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-07-15 00:01:42,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-15 00:01:42,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-07-15 00:01:42,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-15 00:01:46,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-15 00:01:46,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-15 00:01:46,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-15 00:01:46,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-15 00:01:46,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-15 00:01:46,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-07-15 00:01:46,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-07-15 00:01:46,337 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-15 00:01:46,338 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-15 00:01:46,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-15 00:01:46,338 INFO L82 PathProgramCache]: Analyzing trace with hash -1802595336, now seen corresponding path program 7 times [2021-07-15 00:01:46,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-15 00:01:46,338 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196631451] [2021-07-15 00:01:46,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-15 00:01:46,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-15 00:01:46,830 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-07-15 00:01:46,830 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-15 00:01:46,831 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196631451] [2021-07-15 00:01:46,831 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196631451] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-15 00:01:46,831 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047182388] [2021-07-15 00:01:46,831 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-15 00:01:46,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-15 00:01:46,866 WARN L261 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 62 conjunts are in the unsatisfiable core [2021-07-15 00:01:46,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-15 00:01:48,831 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 0 proven. 314 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-15 00:01:48,832 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047182388] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-15 00:01:48,832 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-15 00:01:48,832 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 41] total 58 [2021-07-15 00:01:48,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037953103] [2021-07-15 00:01:48,834 INFO L462 AbstractCegarLoop]: Interpolant automaton has 59 states [2021-07-15 00:01:48,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-15 00:01:48,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2021-07-15 00:01:48,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=303, Invalid=3119, Unknown=0, NotChecked=0, Total=3422 [2021-07-15 00:01:48,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-15 00:01:48,853 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-15 00:01:48,854 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 59 states, 59 states have (on average 1.7627118644067796) internal successors, (104), 58 states have internal predecessors, (104), 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) [2021-07-15 00:01:48,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-15 00:01:48,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-15 00:01:48,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-07-15 00:01:48,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-07-15 00:01:48,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-07-15 00:01:48,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-07-15 00:01:48,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2021-07-15 00:01:48,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-15 00:01:52,189 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-07-15 00:01:52,190 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalStateException: Guarantee of compatibility failed at de.uni_freiburg.informatik.ultimate.automata.partialorder.PersistentSetReduction$CompatibleDfsOrder.lambda$0(PersistentSetReduction.java:142) at java.base/java.util.TimSort.countRunAndMakeAscending(TimSort.java:355) at java.base/java.util.TimSort.sort(TimSort.java:220) at java.base/java.util.Arrays.sort(Arrays.java:1515) at java.base/java.util.ArrayList.sort(ArrayList.java:1750) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SleepSetNewStateReduction.search(SleepSetNewStateReduction.java:147) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SleepSetNewStateReduction.(SleepSetNewStateReduction.java:111) at de.uni_freiburg.informatik.ultimate.automata.partialorder.PersistentSetReduction.applyNewStateReduction(PersistentSetReduction.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderReductionFacade.apply(PartialOrderReductionFacade.java:185) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isAbstractionEmpty(PartialOrderCegarLoop.java:193) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:509) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:374) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:367) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:293) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-07-15 00:01:52,195 INFO L168 Benchmark]: Toolchain (without parser) took 22227.87 ms. Allocated memory was 206.6 MB in the beginning and 648.0 MB in the end (delta: 441.5 MB). Free memory was 186.8 MB in the beginning and 290.3 MB in the end (delta: -103.5 MB). Peak memory consumption was 340.0 MB. Max. memory is 8.0 GB. [2021-07-15 00:01:52,195 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 206.6 MB. Free memory is still 187.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-15 00:01:52,196 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.01 ms. Allocated memory is still 206.6 MB. Free memory was 186.6 MB in the beginning and 185.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-15 00:01:52,196 INFO L168 Benchmark]: Boogie Preprocessor took 11.15 ms. Allocated memory is still 206.6 MB. Free memory was 185.1 MB in the beginning and 184.3 MB in the end (delta: 840.9 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-15 00:01:52,196 INFO L168 Benchmark]: RCFGBuilder took 230.28 ms. Allocated memory is still 206.6 MB. Free memory was 184.3 MB in the beginning and 172.4 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-07-15 00:01:52,196 INFO L168 Benchmark]: TraceAbstraction took 21954.10 ms. Allocated memory was 206.6 MB in the beginning and 648.0 MB in the end (delta: 441.5 MB). Free memory was 171.9 MB in the beginning and 290.3 MB in the end (delta: -118.4 MB). Peak memory consumption was 324.3 MB. Max. memory is 8.0 GB. [2021-07-15 00:01:52,197 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 206.6 MB. Free memory is still 187.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 19.01 ms. Allocated memory is still 206.6 MB. Free memory was 186.6 MB in the beginning and 185.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 11.15 ms. Allocated memory is still 206.6 MB. Free memory was 185.1 MB in the beginning and 184.3 MB in the end (delta: 840.9 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 230.28 ms. Allocated memory is still 206.6 MB. Free memory was 184.3 MB in the beginning and 172.4 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 21954.10 ms. Allocated memory was 206.6 MB in the beginning and 648.0 MB in the end (delta: 441.5 MB). Free memory was 171.9 MB in the beginning and 290.3 MB in the end (delta: -118.4 MB). Peak memory consumption was 324.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalStateException: Guarantee of compatibility failed de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: Guarantee of compatibility failed: de.uni_freiburg.informatik.ultimate.automata.partialorder.PersistentSetReduction$CompatibleDfsOrder.lambda$0(PersistentSetReduction.java:142) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...