/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-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/showcase/ForkJoinExplained.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 03:20:48,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 03:20:48,887 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 03:20:48,912 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-05 03:20:48,912 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-05 03:20:48,914 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-05 03:20:48,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-05 03:20:48,918 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-05 03:20:48,919 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-05 03:20:48,920 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-05 03:20:48,920 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-05 03:20:48,921 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-05 03:20:48,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 03:20:48,922 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 03:20:48,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 03:20:48,923 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 03:20:48,924 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 03:20:48,924 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 03:20:48,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 03:20:48,926 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 03:20:48,927 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 03:20:48,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 03:20:48,943 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 03:20:48,944 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 03:20:48,947 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 03:20:48,951 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 03:20:48,952 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 03:20:48,952 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 03:20:48,960 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-FA-NoLbe.epf [2021-06-05 03:20:48,980 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 03:20:48,980 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 03:20:48,980 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 03:20:48,980 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 03:20:48,981 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 03:20:48,981 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 03:20:48,981 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 03:20:48,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 03:20:48,981 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 03:20:48,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 03:20:48,981 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 03:20:48,982 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 03:20:48,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 03:20:48,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 03:20:48,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 03:20:48,982 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 03:20:48,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 03:20:48,982 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 03:20:48,982 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 03:20:48,982 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 03:20:48,982 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 03:20:48,982 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 03:20:48,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 03:20:48,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 03:20:48,983 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 03:20:48,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 03:20:48,983 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 03:20:48,983 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 03:20:48,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 03:20:48,983 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 03:20:48,983 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 03:20:48,983 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 03:20:49,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 03:20:49,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 03:20:49,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 03:20:49,231 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-05 03:20:49,233 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-05 03:20:49,233 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/ForkJoinExplained.bpl [2021-06-05 03:20:49,234 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/ForkJoinExplained.bpl' [2021-06-05 03:20:49,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 03:20:49,305 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-05 03:20:49,305 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 03:20:49,306 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 03:20:49,306 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 03:20:49,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:20:49" (1/1) ... [2021-06-05 03:20:49,319 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:20:49" (1/1) ... [2021-06-05 03:20:49,325 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 03:20:49,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 03:20:49,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 03:20:49,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 03:20:49,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:20:49" (1/1) ... [2021-06-05 03:20:49,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:20:49" (1/1) ... [2021-06-05 03:20:49,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:20:49" (1/1) ... [2021-06-05 03:20:49,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:20:49" (1/1) ... [2021-06-05 03:20:49,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:20:49" (1/1) ... [2021-06-05 03:20:49,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:20:49" (1/1) ... [2021-06-05 03:20:49,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:20:49" (1/1) ... [2021-06-05 03:20:49,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 03:20:49,338 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 03:20:49,338 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 03:20:49,339 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 03:20:49,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:20:49" (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 [2021-06-05 03:20:49,402 INFO L124 BoogieDeclarations]: Specification and implementation of procedure foo given in one single declaration [2021-06-05 03:20:49,402 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-06-05 03:20:49,403 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-06-05 03:20:49,403 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-05 03:20:49,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 03:20:49,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 03:20:49,404 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 03:20:49,534 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 03:20:49,534 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-05 03:20:49,535 INFO L202 PluginConnector]: Adding new model ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 03:20:49 BoogieIcfgContainer [2021-06-05 03:20:49,536 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 03:20:49,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 03:20:49,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 03:20:49,540 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 03:20:49,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:20:49" (1/2) ... [2021-06-05 03:20:49,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e193c3 and model type ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 03:20:49, skipping insertion in model container [2021-06-05 03:20:49,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 03:20:49" (2/2) ... [2021-06-05 03:20:49,545 INFO L111 eAbstractionObserver]: Analyzing ICFG ForkJoinExplained.bpl [2021-06-05 03:20:49,549 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 03:20:49,550 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 03:20:49,550 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-06-05 03:20:49,551 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 03:20:49,569 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:20:49,569 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:20:49,569 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:20:49,570 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:20:49,570 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:20:49,570 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:20:49,570 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:20:49,570 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:20:49,571 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:20:49,571 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:20:49,571 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:20:49,571 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:20:49,571 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:20:49,572 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:20:49,572 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:20:49,572 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:20:49,573 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:20:49,588 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:20:49,599 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-05 03:20:49,622 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-05 03:20:49,645 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 03:20:49,645 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 03:20:49,645 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 03:20:49,645 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 03:20:49,646 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 03:20:49,646 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 03:20:49,646 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 03:20:49,646 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 03:20:49,652 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 31 transitions, 84 flow [2021-06-05 03:20:49,679 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 133 states, 127 states have (on average 2.047244094488189) internal successors, (260), 132 states have internal predecessors, (260), 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) [2021-06-05 03:20:49,681 INFO L276 IsEmpty]: Start isEmpty. Operand has 133 states, 127 states have (on average 2.047244094488189) internal successors, (260), 132 states have internal predecessors, (260), 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) [2021-06-05 03:20:49,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-06-05 03:20:49,686 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:20:49,686 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:20:49,701 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-06-05 03:20:49,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:20:49,717 INFO L82 PathProgramCache]: Analyzing trace with hash -230697950, now seen corresponding path program 1 times [2021-06-05 03:20:49,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:20:49,724 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797311300] [2021-06-05 03:20:49,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:20:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:20:49,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:20:49,826 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:20:49,826 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797311300] [2021-06-05 03:20:49,827 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797311300] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:20:49,827 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:20:49,827 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 03:20:49,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281420580] [2021-06-05 03:20:49,830 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-05 03:20:49,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:20:49,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-05 03:20:49,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-05 03:20:49,840 INFO L87 Difference]: Start difference. First operand has 133 states, 127 states have (on average 2.047244094488189) internal successors, (260), 132 states have internal predecessors, (260), 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) Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-06-05 03:20:49,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:20:49,880 INFO L93 Difference]: Finished difference Result 187 states and 356 transitions. [2021-06-05 03:20:49,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-05 03:20:49,881 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) Word has length 10 [2021-06-05 03:20:49,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:20:49,888 INFO L225 Difference]: With dead ends: 187 [2021-06-05 03:20:49,888 INFO L226 Difference]: Without dead ends: 187 [2021-06-05 03:20:49,889 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-05 03:20:49,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-06-05 03:20:49,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 154. [2021-06-05 03:20:49,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 149 states have (on average 2.046979865771812) internal successors, (305), 153 states have internal predecessors, (305), 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) [2021-06-05 03:20:49,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 305 transitions. [2021-06-05 03:20:49,921 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 305 transitions. Word has length 10 [2021-06-05 03:20:49,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:20:49,921 INFO L482 AbstractCegarLoop]: Abstraction has 154 states and 305 transitions. [2021-06-05 03:20:49,921 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-06-05 03:20:49,921 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 305 transitions. [2021-06-05 03:20:49,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-06-05 03:20:49,922 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:20:49,922 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:20:49,922 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 03:20:49,922 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-06-05 03:20:49,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:20:49,923 INFO L82 PathProgramCache]: Analyzing trace with hash 686358403, now seen corresponding path program 1 times [2021-06-05 03:20:49,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:20:49,924 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512376381] [2021-06-05 03:20:49,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:20:49,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:20:49,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:20:49,936 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:20:49,936 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512376381] [2021-06-05 03:20:49,936 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512376381] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:20:49,936 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:20:49,936 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 03:20:49,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125902593] [2021-06-05 03:20:49,937 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 03:20:49,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:20:49,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 03:20:49,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:20:49,938 INFO L87 Difference]: Start difference. First operand 154 states and 305 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-06-05 03:20:49,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:20:49,949 INFO L93 Difference]: Finished difference Result 98 states and 179 transitions. [2021-06-05 03:20:49,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 03:20:49,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) Word has length 10 [2021-06-05 03:20:49,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:20:49,950 INFO L225 Difference]: With dead ends: 98 [2021-06-05 03:20:49,950 INFO L226 Difference]: Without dead ends: 98 [2021-06-05 03:20:49,951 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:20:49,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-06-05 03:20:49,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2021-06-05 03:20:49,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 94 states have (on average 1.9042553191489362) internal successors, (179), 97 states have internal predecessors, (179), 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) [2021-06-05 03:20:49,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 179 transitions. [2021-06-05 03:20:49,957 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 179 transitions. Word has length 10 [2021-06-05 03:20:49,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:20:49,957 INFO L482 AbstractCegarLoop]: Abstraction has 98 states and 179 transitions. [2021-06-05 03:20:49,957 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-06-05 03:20:49,957 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 179 transitions. [2021-06-05 03:20:49,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-06-05 03:20:49,957 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:20:49,958 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:20:49,958 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 03:20:49,958 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-06-05 03:20:49,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:20:49,958 INFO L82 PathProgramCache]: Analyzing trace with hash -211848501, now seen corresponding path program 1 times [2021-06-05 03:20:49,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:20:49,959 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161556432] [2021-06-05 03:20:49,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:20:49,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:20:49,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:20:49,970 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:20:49,971 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161556432] [2021-06-05 03:20:49,971 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161556432] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:20:49,971 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:20:49,971 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 03:20:49,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700510536] [2021-06-05 03:20:49,971 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 03:20:49,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:20:49,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 03:20:49,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:20:49,972 INFO L87 Difference]: Start difference. First operand 98 states and 179 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-06-05 03:20:49,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:20:49,975 INFO L93 Difference]: Finished difference Result 80 states and 136 transitions. [2021-06-05 03:20:49,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 03:20:49,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) Word has length 10 [2021-06-05 03:20:49,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:20:49,977 INFO L225 Difference]: With dead ends: 80 [2021-06-05 03:20:49,977 INFO L226 Difference]: Without dead ends: 80 [2021-06-05 03:20:49,977 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:20:49,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-06-05 03:20:49,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-06-05 03:20:49,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 76 states have (on average 1.7894736842105263) internal successors, (136), 79 states have internal predecessors, (136), 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) [2021-06-05 03:20:49,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 136 transitions. [2021-06-05 03:20:49,981 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 136 transitions. Word has length 10 [2021-06-05 03:20:49,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:20:49,982 INFO L482 AbstractCegarLoop]: Abstraction has 80 states and 136 transitions. [2021-06-05 03:20:49,982 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-06-05 03:20:49,982 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 136 transitions. [2021-06-05 03:20:49,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-06-05 03:20:49,982 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:20:49,982 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:20:49,982 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 03:20:49,983 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-06-05 03:20:49,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:20:49,983 INFO L82 PathProgramCache]: Analyzing trace with hash -182266038, now seen corresponding path program 1 times [2021-06-05 03:20:49,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:20:49,983 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698337462] [2021-06-05 03:20:49,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:20:49,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:20:49,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:20:49,998 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:20:49,998 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698337462] [2021-06-05 03:20:49,998 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698337462] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:20:49,998 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:20:49,998 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 03:20:49,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92815710] [2021-06-05 03:20:49,999 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 03:20:49,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:20:49,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 03:20:49,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:20:49,999 INFO L87 Difference]: Start difference. First operand 80 states and 136 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-06-05 03:20:50,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:20:50,002 INFO L93 Difference]: Finished difference Result 53 states and 88 transitions. [2021-06-05 03:20:50,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 03:20:50,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) Word has length 10 [2021-06-05 03:20:50,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:20:50,003 INFO L225 Difference]: With dead ends: 53 [2021-06-05 03:20:50,003 INFO L226 Difference]: Without dead ends: 48 [2021-06-05 03:20:50,003 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:20:50,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-06-05 03:20:50,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-06-05 03:20:50,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.6808510638297873) internal successors, (79), 47 states have internal predecessors, (79), 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) [2021-06-05 03:20:50,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 79 transitions. [2021-06-05 03:20:50,006 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 79 transitions. Word has length 10 [2021-06-05 03:20:50,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:20:50,006 INFO L482 AbstractCegarLoop]: Abstraction has 48 states and 79 transitions. [2021-06-05 03:20:50,006 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-06-05 03:20:50,006 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 79 transitions. [2021-06-05 03:20:50,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-06-05 03:20:50,007 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:20:50,007 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:20:50,007 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 03:20:50,007 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-06-05 03:20:50,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:20:50,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1438298200, now seen corresponding path program 1 times [2021-06-05 03:20:50,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:20:50,008 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908621122] [2021-06-05 03:20:50,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:20:50,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:20:50,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:20:50,055 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:20:50,055 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908621122] [2021-06-05 03:20:50,056 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908621122] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:20:50,056 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:20:50,056 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 03:20:50,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807428909] [2021-06-05 03:20:50,056 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-05 03:20:50,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:20:50,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-05 03:20:50,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-05 03:20:50,057 INFO L87 Difference]: Start difference. First operand 48 states and 79 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-06-05 03:20:50,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:20:50,079 INFO L93 Difference]: Finished difference Result 46 states and 75 transitions. [2021-06-05 03:20:50,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-05 03:20:50,080 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) Word has length 11 [2021-06-05 03:20:50,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:20:50,081 INFO L225 Difference]: With dead ends: 46 [2021-06-05 03:20:50,081 INFO L226 Difference]: Without dead ends: 46 [2021-06-05 03:20:50,081 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.0ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-05 03:20:50,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-06-05 03:20:50,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-06-05 03:20:50,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.6666666666666667) internal successors, (75), 45 states have internal predecessors, (75), 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) [2021-06-05 03:20:50,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 75 transitions. [2021-06-05 03:20:50,084 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 75 transitions. Word has length 11 [2021-06-05 03:20:50,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:20:50,084 INFO L482 AbstractCegarLoop]: Abstraction has 46 states and 75 transitions. [2021-06-05 03:20:50,084 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-06-05 03:20:50,084 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 75 transitions. [2021-06-05 03:20:50,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-06-05 03:20:50,085 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:20:50,085 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:20:50,085 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 03:20:50,085 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-06-05 03:20:50,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:20:50,086 INFO L82 PathProgramCache]: Analyzing trace with hash -790563850, now seen corresponding path program 1 times [2021-06-05 03:20:50,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:20:50,086 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239919634] [2021-06-05 03:20:50,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:20:50,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:20:50,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:20:50,141 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:20:50,141 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239919634] [2021-06-05 03:20:50,141 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239919634] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:20:50,141 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:20:50,141 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-05 03:20:50,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994593015] [2021-06-05 03:20:50,142 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 03:20:50,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:20:50,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 03:20:50,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 03:20:50,142 INFO L87 Difference]: Start difference. First operand 46 states and 75 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-06-05 03:20:50,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:20:50,162 INFO L93 Difference]: Finished difference Result 61 states and 97 transitions. [2021-06-05 03:20:50,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-05 03:20:50,164 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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) Word has length 13 [2021-06-05 03:20:50,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:20:50,164 INFO L225 Difference]: With dead ends: 61 [2021-06-05 03:20:50,164 INFO L226 Difference]: Without dead ends: 33 [2021-06-05 03:20:50,164 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.2ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 03:20:50,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-06-05 03:20:50,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-06-05 03:20:50,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.53125) internal successors, (49), 32 states have internal predecessors, (49), 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) [2021-06-05 03:20:50,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 49 transitions. [2021-06-05 03:20:50,168 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 49 transitions. Word has length 13 [2021-06-05 03:20:50,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:20:50,168 INFO L482 AbstractCegarLoop]: Abstraction has 33 states and 49 transitions. [2021-06-05 03:20:50,168 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-06-05 03:20:50,168 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 49 transitions. [2021-06-05 03:20:50,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-06-05 03:20:50,169 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:20:50,169 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:20:50,169 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 03:20:50,169 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-06-05 03:20:50,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:20:50,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1176386758, now seen corresponding path program 2 times [2021-06-05 03:20:50,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:20:50,170 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204504629] [2021-06-05 03:20:50,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:20:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:20:50,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:20:50,231 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:20:50,231 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204504629] [2021-06-05 03:20:50,231 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204504629] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:20:50,232 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:20:50,232 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-05 03:20:50,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969436618] [2021-06-05 03:20:50,232 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 03:20:50,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:20:50,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 03:20:50,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 03:20:50,234 INFO L87 Difference]: Start difference. First operand 33 states and 49 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-06-05 03:20:50,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:20:50,241 INFO L93 Difference]: Finished difference Result 30 states and 44 transitions. [2021-06-05 03:20:50,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-05 03:20:50,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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) Word has length 13 [2021-06-05 03:20:50,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:20:50,242 INFO L225 Difference]: With dead ends: 30 [2021-06-05 03:20:50,242 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 03:20:50,243 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.4ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 03:20:50,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 03:20:50,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 03:20:50,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-06-05 03:20:50,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 03:20:50,243 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-06-05 03:20:50,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:20:50,243 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 03:20:50,244 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-06-05 03:20:50,244 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 03:20:50,244 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 03:20:50,245 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 03:20:50,246 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 03:20:50,249 INFO L202 PluginConnector]: Adding new model ForkJoinExplained.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 03:20:50 BasicIcfg [2021-06-05 03:20:50,249 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 03:20:50,251 INFO L168 Benchmark]: Toolchain (without parser) took 944.76 ms. Allocated memory is still 348.1 MB. Free memory was 328.2 MB in the beginning and 273.5 MB in the end (delta: 54.6 MB). Peak memory consumption was 55.0 MB. Max. memory is 16.0 GB. [2021-06-05 03:20:50,251 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 348.1 MB. Free memory is still 329.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 03:20:50,254 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.54 ms. Allocated memory is still 348.1 MB. Free memory was 328.1 MB in the beginning and 326.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 03:20:50,254 INFO L168 Benchmark]: Boogie Preprocessor took 11.15 ms. Allocated memory is still 348.1 MB. Free memory was 326.6 MB in the beginning and 325.8 MB in the end (delta: 834.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 03:20:50,255 INFO L168 Benchmark]: RCFGBuilder took 197.26 ms. Allocated memory is still 348.1 MB. Free memory was 325.7 MB in the beginning and 315.9 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-06-05 03:20:50,255 INFO L168 Benchmark]: TraceAbstraction took 710.90 ms. Allocated memory is still 348.1 MB. Free memory was 315.4 MB in the beginning and 273.5 MB in the end (delta: 41.9 MB). Peak memory consumption was 42.4 MB. Max. memory is 16.0 GB. [2021-06-05 03:20:50,260 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 0.12 ms. Allocated memory is still 348.1 MB. Free memory is still 329.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 19.54 ms. Allocated memory is still 348.1 MB. Free memory was 328.1 MB in the beginning and 326.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 11.15 ms. Allocated memory is still 348.1 MB. Free memory was 326.6 MB in the beginning and 325.8 MB in the end (delta: 834.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 197.26 ms. Allocated memory is still 348.1 MB. Free memory was 325.7 MB in the beginning and 315.9 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 710.90 ms. Allocated memory is still 348.1 MB. Free memory was 315.4 MB in the beginning and 273.5 MB in the end (delta: 41.9 MB). Peak memory consumption was 42.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 70]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 55]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 61]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 37 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 601.5ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 9.1ms, AutomataDifference: 138.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 33.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 167 SDtfs, 112 SDslu, 169 SDs, 0 SdLazy, 49 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 52.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 93.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=154occurred in iteration=1, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 41.3ms AutomataMinimizationTime, 7 MinimizatonAttempts, 33 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 6.4ms SsaConstructionTime, 30.2ms SatisfiabilityAnalysisTime, 220.1ms InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 294 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...