/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-NewStatesSleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/showcase/PetersonWithBug.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-13 15:03:40,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-13 15:03:40,432 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-13 15:03:40,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-13 15:03:40,549 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-NewStatesSleep-NoLbe.epf [2021-06-13 15:03:40,584 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-13 15:03:40,584 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-13 15:03:40,585 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-13 15:03:40,585 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-13 15:03:40,587 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-13 15:03:40,587 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-13 15:03:40,587 INFO L138 SettingsManager]: * Use SBE=true [2021-06-13 15:03:40,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-13 15:03:40,588 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-13 15:03:40,588 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-13 15:03:40,589 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-13 15:03:40,589 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-13 15:03:40,589 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-13 15:03:40,589 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-13 15:03:40,589 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-13 15:03:40,589 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-13 15:03:40,590 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-13 15:03:40,590 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-13 15:03:40,590 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-13 15:03:40,590 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-13 15:03:40,590 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-13 15:03:40,590 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-13 15:03:40,590 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-13 15:03:40,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 15:03:40,591 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-13 15:03:40,591 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-13 15:03:40,591 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-13 15:03:40,591 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-13 15:03:40,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-13 15:03:40,592 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-13 15:03:40,592 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-13 15:03:40,592 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-13 15:03:40,592 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-13 15:03:40,592 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-13 15:03:40,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-13 15:03:40,957 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-13 15:03:40,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-13 15:03:40,960 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-13 15:03:40,961 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-13 15:03:40,961 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/PetersonWithBug.bpl [2021-06-13 15:03:40,962 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/PetersonWithBug.bpl' [2021-06-13 15:03:40,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-13 15:03:40,983 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-13 15:03:40,984 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-13 15:03:40,984 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-13 15:03:40,984 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-13 15:03:40,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "PetersonWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 03:03:40" (1/1) ... [2021-06-13 15:03:41,000 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "PetersonWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 03:03:40" (1/1) ... [2021-06-13 15:03:41,005 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-13 15:03:41,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-13 15:03:41,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-13 15:03:41,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-13 15:03:41,016 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "PetersonWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 03:03:40" (1/1) ... [2021-06-13 15:03:41,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "PetersonWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 03:03:40" (1/1) ... [2021-06-13 15:03:41,017 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "PetersonWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 03:03:40" (1/1) ... [2021-06-13 15:03:41,018 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "PetersonWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 03:03:40" (1/1) ... [2021-06-13 15:03:41,020 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "PetersonWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 03:03:40" (1/1) ... [2021-06-13 15:03:41,023 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "PetersonWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 03:03:40" (1/1) ... [2021-06-13 15:03:41,024 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "PetersonWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 03:03:40" (1/1) ... [2021-06-13 15:03:41,024 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-13 15:03:41,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-13 15:03:41,025 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-13 15:03:41,025 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-13 15:03:41,026 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "PetersonWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 03:03:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 15:03:41,091 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Process0 given in one single declaration [2021-06-13 15:03:41,091 INFO L130 BoogieDeclarations]: Found specification of procedure Process0 [2021-06-13 15:03:41,091 INFO L138 BoogieDeclarations]: Found implementation of procedure Process0 [2021-06-13 15:03:41,091 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Process1 given in one single declaration [2021-06-13 15:03:41,092 INFO L130 BoogieDeclarations]: Found specification of procedure Process1 [2021-06-13 15:03:41,092 INFO L138 BoogieDeclarations]: Found implementation of procedure Process1 [2021-06-13 15:03:41,092 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-13 15:03:41,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-13 15:03:41,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-13 15:03:41,094 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-13 15:03:41,246 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-13 15:03:41,246 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-06-13 15:03:41,248 INFO L202 PluginConnector]: Adding new model PetersonWithBug.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 03:03:41 BoogieIcfgContainer [2021-06-13 15:03:41,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-13 15:03:41,249 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-13 15:03:41,249 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-13 15:03:41,252 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-13 15:03:41,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "PetersonWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 03:03:40" (1/2) ... [2021-06-13 15:03:41,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b7a24ea and model type PetersonWithBug.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 03:03:41, skipping insertion in model container [2021-06-13 15:03:41,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "PetersonWithBug.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 03:03:41" (2/2) ... [2021-06-13 15:03:41,254 INFO L111 eAbstractionObserver]: Analyzing ICFG PetersonWithBug.bpl [2021-06-13 15:03:41,259 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-13 15:03:41,259 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-13 15:03:41,260 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-06-13 15:03:41,260 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-13 15:03:41,299 WARN L313 ript$VariableManager]: TermVariabe Process0Thread1of1ForFork0_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 15:03:41,300 WARN L313 ript$VariableManager]: TermVariabe Process0Thread1of1ForFork0_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 15:03:41,303 WARN L313 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 15:03:41,303 WARN L313 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 15:03:41,304 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-13 15:03:41,329 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 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 [2021-06-13 15:03:41,398 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 15:03:41,399 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 15:03:41,399 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 15:03:41,399 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 15:03:41,399 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 15:03:41,399 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 15:03:41,400 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 15:03:41,400 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == Process0======== [2021-06-13 15:03:41,637 INFO L301 ceAbstractionStarter]: Result for error location Process0 was SAFE (1/5) [2021-06-13 15:03:41,638 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-13 15:03:41,649 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 15:03:41,649 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 15:03:41,649 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 15:03:41,649 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 15:03:41,649 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 15:03:41,650 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 15:03:41,650 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 15:03:41,650 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == Process1======== [2021-06-13 15:03:41,775 INFO L301 ceAbstractionStarter]: Result for error location Process1 was SAFE (2/5) [2021-06-13 15:03:41,776 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-06-13 15:03:41,793 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 15:03:41,793 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 15:03:41,793 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 15:03:41,793 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 15:03:41,793 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 15:03:41,794 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 15:03:41,794 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 15:03:41,794 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-13 15:03:41,893 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (3/5) [2021-06-13 15:03:41,894 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-06-13 15:03:41,908 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 15:03:41,908 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 15:03:41,908 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 15:03:41,908 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 15:03:41,908 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 15:03:41,908 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 15:03:41,908 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 15:03:41,908 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == Process1Thread1of1ForFork1======== [2021-06-13 15:03:41,911 INFO L430 AbstractCegarLoop]: === Iteration 1 === [Process1Err0ASSERT_VIOLATIONASSERT]=== [2021-06-13 15:03:41,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 15:03:41,916 INFO L82 PathProgramCache]: Analyzing trace with hash 758603323, now seen corresponding path program 1 times Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-13 15:03:41,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 15:03:41,926 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181344826] [2021-06-13 15:03:41,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 15:03:41,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 15:03:42,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 15:03:42,039 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 15:03:42,040 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181344826] [2021-06-13 15:03:42,041 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181344826] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 15:03:42,041 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 15:03:42,041 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-13 15:03:42,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422524795] [2021-06-13 15:03:42,046 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-13 15:03:42,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 15:03:42,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-13 15:03:42,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-13 15:03:42,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 15:03:42,066 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 15:03:42,067 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2021-06-13 15:03:42,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 15:03:42,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 15:03:42,122 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-13 15:03:42,122 INFO L430 AbstractCegarLoop]: === Iteration 2 === [Process1Err0ASSERT_VIOLATIONASSERT]=== [2021-06-13 15:03:42,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 15:03:42,123 INFO L82 PathProgramCache]: Analyzing trace with hash -705277929, now seen corresponding path program 1 times [2021-06-13 15:03:42,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 15:03:42,123 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324677950] [2021-06-13 15:03:42,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 15:03:42,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 15:03:42,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 15:03:42,161 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 15:03:42,162 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324677950] [2021-06-13 15:03:42,162 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324677950] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 15:03:42,162 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 15:03:42,162 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-13 15:03:42,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112562928] [2021-06-13 15:03:42,163 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-13 15:03:42,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 15:03:42,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-13 15:03:42,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-13 15:03:42,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 15:03:42,164 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 15:03:42,164 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2021-06-13 15:03:42,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 15:03:42,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 15:03:42,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 15:03:42,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 15:03:42,191 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-13 15:03:42,191 INFO L430 AbstractCegarLoop]: === Iteration 3 === [Process1Err0ASSERT_VIOLATIONASSERT]=== [2021-06-13 15:03:42,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 15:03:42,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1732506761, now seen corresponding path program 1 times [2021-06-13 15:03:42,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 15:03:42,192 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321276942] [2021-06-13 15:03:42,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 15:03:42,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 15:03:42,235 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 15:03:42,235 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 15:03:42,235 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321276942] [2021-06-13 15:03:42,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321276942] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 15:03:42,235 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 15:03:42,236 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-13 15:03:42,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426407833] [2021-06-13 15:03:42,237 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-13 15:03:42,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 15:03:42,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-13 15:03:42,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-13 15:03:42,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 15:03:42,247 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 15:03:42,248 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2021-06-13 15:03:42,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 15:03:42,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 15:03:42,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 15:03:42,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 15:03:42,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 15:03:42,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 15:03:42,302 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-13 15:03:42,302 INFO L430 AbstractCegarLoop]: === Iteration 4 === [Process1Err0ASSERT_VIOLATIONASSERT]=== [2021-06-13 15:03:42,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 15:03:42,303 INFO L82 PathProgramCache]: Analyzing trace with hash 202194267, now seen corresponding path program 1 times [2021-06-13 15:03:42,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 15:03:42,308 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564493793] [2021-06-13 15:03:42,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 15:03:42,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-13 15:03:42,329 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-13 15:03:42,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-13 15:03:42,337 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-13 15:03:42,365 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-13 15:03:42,365 INFO L573 BasicCegarLoop]: Counterexample might be feasible [2021-06-13 15:03:42,365 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-13 15:03:42,373 INFO L301 ceAbstractionStarter]: Result for error location Process1Thread1of1ForFork1 was UNSAFE (4/5) [2021-06-13 15:03:42,375 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-13 15:03:42,379 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 15:03:42,380 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 15:03:42,380 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 15:03:42,380 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 15:03:42,380 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 15:03:42,380 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 15:03:42,380 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 15:03:42,380 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == Process0Thread1of1ForFork0======== [2021-06-13 15:03:42,383 INFO L430 AbstractCegarLoop]: === Iteration 1 === [Process0Err0ASSERT_VIOLATIONASSERT]=== [2021-06-13 15:03:42,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 15:03:42,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1990965056, now seen corresponding path program 1 times [2021-06-13 15:03:42,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 15:03:42,384 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824101676] [2021-06-13 15:03:42,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 15:03:42,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 15:03:42,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 15:03:42,419 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 15:03:42,419 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824101676] [2021-06-13 15:03:42,419 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824101676] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 15:03:42,419 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 15:03:42,419 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-13 15:03:42,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985280040] [2021-06-13 15:03:42,420 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-13 15:03:42,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 15:03:42,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-13 15:03:42,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-13 15:03:42,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 15:03:42,421 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 15:03:42,421 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-06-13 15:03:42,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 15:03:42,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 15:03:42,475 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-13 15:03:42,475 INFO L430 AbstractCegarLoop]: === Iteration 2 === [Process0Err0ASSERT_VIOLATIONASSERT]=== [2021-06-13 15:03:42,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 15:03:42,475 INFO L82 PathProgramCache]: Analyzing trace with hash 1687772755, now seen corresponding path program 1 times [2021-06-13 15:03:42,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 15:03:42,476 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391760554] [2021-06-13 15:03:42,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 15:03:42,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 15:03:42,502 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-06-13 15:03:42,502 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 15:03:42,503 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391760554] [2021-06-13 15:03:42,503 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391760554] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 15:03:42,503 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 15:03:42,503 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-13 15:03:42,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067753850] [2021-06-13 15:03:42,503 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-13 15:03:42,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 15:03:42,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-13 15:03:42,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-13 15:03:42,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 15:03:42,504 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 15:03:42,505 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2021-06-13 15:03:42,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 15:03:42,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 15:03:42,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 15:03:42,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 15:03:42,549 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-13 15:03:42,549 INFO L430 AbstractCegarLoop]: === Iteration 3 === [Process0Err0ASSERT_VIOLATIONASSERT]=== [2021-06-13 15:03:42,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 15:03:42,550 INFO L82 PathProgramCache]: Analyzing trace with hash 18809541, now seen corresponding path program 2 times [2021-06-13 15:03:42,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 15:03:42,550 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094688479] [2021-06-13 15:03:42,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 15:03:42,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 15:03:42,602 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-06-13 15:03:42,603 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 15:03:42,603 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094688479] [2021-06-13 15:03:42,603 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094688479] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 15:03:42,603 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 15:03:42,603 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-13 15:03:42,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914888387] [2021-06-13 15:03:42,604 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-13 15:03:42,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 15:03:42,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-13 15:03:42,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-13 15:03:42,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 15:03:42,605 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 15:03:42,605 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-06-13 15:03:42,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 15:03:42,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 15:03:42,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 15:03:42,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 15:03:42,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 15:03:42,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 15:03:42,632 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-13 15:03:42,632 INFO L430 AbstractCegarLoop]: === Iteration 4 === [Process0Err0ASSERT_VIOLATIONASSERT]=== [2021-06-13 15:03:42,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 15:03:42,632 INFO L82 PathProgramCache]: Analyzing trace with hash 674624759, now seen corresponding path program 1 times [2021-06-13 15:03:42,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 15:03:42,633 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575727006] [2021-06-13 15:03:42,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 15:03:42,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 15:03:42,684 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-13 15:03:42,684 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 15:03:42,685 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575727006] [2021-06-13 15:03:42,685 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575727006] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 15:03:42,687 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 15:03:42,688 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-13 15:03:42,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623912824] [2021-06-13 15:03:42,688 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-13 15:03:42,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 15:03:42,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-13 15:03:42,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-13 15:03:42,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 15:03:42,689 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 15:03:42,689 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2021-06-13 15:03:42,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 15:03:42,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 15:03:42,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 15:03:42,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 15:03:42,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 15:03:42,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 15:03:42,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 15:03:42,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 15:03:42,717 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-13 15:03:42,719 INFO L430 AbstractCegarLoop]: === Iteration 5 === [Process0Err0ASSERT_VIOLATIONASSERT]=== [2021-06-13 15:03:42,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 15:03:42,719 INFO L82 PathProgramCache]: Analyzing trace with hash 202204177, now seen corresponding path program 3 times [2021-06-13 15:03:42,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 15:03:42,719 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532720280] [2021-06-13 15:03:42,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 15:03:42,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-13 15:03:42,726 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-13 15:03:42,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-13 15:03:42,731 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-13 15:03:42,733 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-13 15:03:42,733 INFO L573 BasicCegarLoop]: Counterexample might be feasible [2021-06-13 15:03:42,734 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-13 15:03:42,735 INFO L301 ceAbstractionStarter]: Result for error location Process0Thread1of1ForFork0 was UNSAFE (5/5) [2021-06-13 15:03:42,735 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-13 15:03:42,754 INFO L202 PluginConnector]: Adding new model PetersonWithBug.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.06 03:03:42 BasicIcfg [2021-06-13 15:03:42,754 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-13 15:03:42,755 INFO L168 Benchmark]: Toolchain (without parser) took 1771.86 ms. Allocated memory is still 201.3 MB. Free memory was 181.8 MB in the beginning and 100.7 MB in the end (delta: 81.1 MB). Peak memory consumption was 80.6 MB. Max. memory is 8.0 GB. [2021-06-13 15:03:42,755 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 201.3 MB. Free memory is still 182.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-13 15:03:42,755 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.84 ms. Allocated memory is still 201.3 MB. Free memory was 181.7 MB in the beginning and 180.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-13 15:03:42,755 INFO L168 Benchmark]: Boogie Preprocessor took 15.59 ms. Allocated memory is still 201.3 MB. Free memory was 180.2 MB in the beginning and 179.4 MB in the end (delta: 887.4 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-13 15:03:42,756 INFO L168 Benchmark]: RCFGBuilder took 222.81 ms. Allocated memory is still 201.3 MB. Free memory was 179.3 MB in the beginning and 169.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-06-13 15:03:42,756 INFO L168 Benchmark]: TraceAbstraction took 1504.79 ms. Allocated memory is still 201.3 MB. Free memory was 169.0 MB in the beginning and 100.7 MB in the end (delta: 68.3 MB). Peak memory consumption was 68.1 MB. Max. memory is 8.0 GB. [2021-06-13 15:03:42,757 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 201.3 MB. Free memory is still 182.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 21.84 ms. Allocated memory is still 201.3 MB. Free memory was 181.7 MB in the beginning and 180.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 15.59 ms. Allocated memory is still 201.3 MB. Free memory was 180.2 MB in the beginning and 179.4 MB in the end (delta: 887.4 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 222.81 ms. Allocated memory is still 201.3 MB. Free memory was 179.3 MB in the beginning and 169.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1504.79 ms. Allocated memory is still 201.3 MB. Free memory was 169.0 MB in the beginning and 100.7 MB in the end (delta: 68.3 MB). Peak memory consumption was 68.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 750, positive: 599, positive conditional: 599, positive unconditional: 0, negative: 151, negative conditional: 151, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 635, positive: 599, positive conditional: 599, positive unconditional: 0, negative: 36, negative conditional: 36, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 635, positive: 599, positive conditional: 0, positive unconditional: 599, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 140, positive: 130, positive conditional: 0, positive unconditional: 130, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 140, positive: 121, positive conditional: 0, positive unconditional: 121, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 19, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 126, positive: 62, positive conditional: 0, positive unconditional: 62, negative: 64, negative conditional: 0, negative unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 635, positive: 469, positive conditional: 0, positive unconditional: 469, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 140, unknown conditional: 0, unknown unconditional: 140] , Statistics on independence cache: Total cache size (in pairs): 140, Positive cache size: 130, Positive conditional cache size: 0, Positive unconditional cache size: 130, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 ], Maximal queried relation: 0, Independence queries for same thread: 115 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 750, positive: 599, positive conditional: 599, positive unconditional: 0, negative: 151, negative conditional: 151, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 635, positive: 599, positive conditional: 599, positive unconditional: 0, negative: 36, negative conditional: 36, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 635, positive: 599, positive conditional: 0, positive unconditional: 599, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 140, positive: 130, positive conditional: 0, positive unconditional: 130, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 140, positive: 121, positive conditional: 0, positive unconditional: 121, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 19, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 101, positive: 45, positive conditional: 0, positive unconditional: 45, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 635, positive: 469, positive conditional: 0, positive unconditional: 469, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 140, unknown conditional: 0, unknown unconditional: 140] , Statistics on independence cache: Total cache size (in pairs): 140, Positive cache size: 130, Positive conditional cache size: 0, Positive unconditional cache size: 130, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 ], Maximal queried relation: 0, Independence queries for same thread: 115 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 750, positive: 599, positive conditional: 599, positive unconditional: 0, negative: 151, negative conditional: 151, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 635, positive: 599, positive conditional: 599, positive unconditional: 0, negative: 36, negative conditional: 36, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 635, positive: 599, positive conditional: 0, positive unconditional: 599, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 140, positive: 130, positive conditional: 0, positive unconditional: 130, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 140, positive: 121, positive conditional: 0, positive unconditional: 121, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 19, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 82, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 635, positive: 469, positive conditional: 0, positive unconditional: 469, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 140, unknown conditional: 0, unknown unconditional: 140] , Statistics on independence cache: Total cache size (in pairs): 140, Positive cache size: 130, Positive conditional cache size: 0, Positive unconditional cache size: 130, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 ], Maximal queried relation: 0, Independence queries for same thread: 115 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 340, positive: 272, positive conditional: 272, positive unconditional: 0, negative: 68, negative conditional: 68, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 282, positive: 272, positive conditional: 272, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 282, positive: 272, positive conditional: 0, positive unconditional: 272, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 77, positive: 72, positive conditional: 0, positive unconditional: 72, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 77, positive: 68, positive conditional: 0, positive unconditional: 68, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 13, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 9, negative conditional: 4, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 46, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 26, negative conditional: 11, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 282, positive: 200, positive conditional: 0, positive unconditional: 200, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 77, unknown conditional: 0, unknown unconditional: 77] , Statistics on independence cache: Total cache size (in pairs): 81, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 9, Negative conditional cache size: 4, Negative unconditional cache size: 5, SemanticConditionEliminator.Independence Queries: [ total: 25, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 25, negative conditional: 4, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 25, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 25, negative conditional: 4, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 13, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 9, negative conditional: 4, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 46, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 26, negative conditional: 11, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 25, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 81, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 9, Negative conditional cache size: 4, Negative unconditional cache size: 5, Eliminated conditions: 21, SemanticConditionEliminator.Independence Queries: [ total: 25, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 25, negative conditional: 4, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 25, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 25, negative conditional: 4, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 13, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 9, negative conditional: 4, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 46, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 26, negative conditional: 11, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 25, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 81, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 9, Negative conditional cache size: 4, Negative unconditional cache size: 5, Eliminated conditions: 21, SemanticConditionEliminator.Independence Queries: [ total: 25, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 25, negative conditional: 4, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 25, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 25, negative conditional: 4, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 13, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 9, negative conditional: 4, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 46, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 26, negative conditional: 11, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 25, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 81, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 9, Negative conditional cache size: 4, Negative unconditional cache size: 5, Eliminated conditions: 21 ], Maximal queried relation: 3, Independence queries for same thread: 58 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 708, positive: 539, positive conditional: 539, positive unconditional: 0, negative: 169, negative conditional: 169, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 573, positive: 539, positive conditional: 539, positive unconditional: 0, negative: 34, negative conditional: 34, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 573, positive: 537, positive conditional: 0, positive unconditional: 537, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 105, positive: 95, positive conditional: 0, positive unconditional: 95, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 105, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 26, positive: 10, positive conditional: 1, positive unconditional: 9, negative: 16, negative conditional: 6, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 59, positive: 34, positive conditional: 1, positive unconditional: 33, negative: 25, negative conditional: 13, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 573, positive: 442, positive conditional: 0, positive unconditional: 442, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 105, unknown conditional: 0, unknown unconditional: 105] , Statistics on independence cache: Total cache size (in pairs): 112, Positive cache size: 96, Positive conditional cache size: 1, Positive unconditional cache size: 95, Negative cache size: 16, Negative conditional cache size: 6, Negative unconditional cache size: 10, SemanticConditionEliminator.Independence Queries: [ total: 93, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 91, negative conditional: 13, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 93, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 91, negative conditional: 13, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 26, positive: 10, positive conditional: 1, positive unconditional: 9, negative: 16, negative conditional: 6, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 59, positive: 34, positive conditional: 1, positive unconditional: 33, negative: 25, negative conditional: 13, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 93, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 85, negative conditional: 7, negative unconditional: 78, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 112, Positive cache size: 96, Positive conditional cache size: 1, Positive unconditional cache size: 95, Negative cache size: 16, Negative conditional cache size: 6, Negative unconditional cache size: 10, Eliminated conditions: 78, SemanticConditionEliminator.Independence Queries: [ total: 93, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 91, negative conditional: 13, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 93, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 91, negative conditional: 13, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 26, positive: 10, positive conditional: 1, positive unconditional: 9, negative: 16, negative conditional: 6, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 59, positive: 34, positive conditional: 1, positive unconditional: 33, negative: 25, negative conditional: 13, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 93, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 85, negative conditional: 7, negative unconditional: 78, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 112, Positive cache size: 96, Positive conditional cache size: 1, Positive unconditional cache size: 95, Negative cache size: 16, Negative conditional cache size: 6, Negative unconditional cache size: 10, Eliminated conditions: 78, SemanticConditionEliminator.Independence Queries: [ total: 93, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 91, negative conditional: 13, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 93, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 91, negative conditional: 13, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 26, positive: 10, positive conditional: 1, positive unconditional: 9, negative: 16, negative conditional: 6, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 59, positive: 34, positive conditional: 1, positive unconditional: 33, negative: 25, negative conditional: 13, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 93, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 85, negative conditional: 7, negative unconditional: 78, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 112, Positive cache size: 96, Positive conditional cache size: 1, Positive unconditional cache size: 95, Negative cache size: 16, Negative conditional cache size: 6, Negative unconditional cache size: 10, Eliminated conditions: 78, SemanticConditionEliminator.Independence Queries: [ total: 93, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 91, negative conditional: 13, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 93, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 91, negative conditional: 13, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 26, positive: 10, positive conditional: 1, positive unconditional: 9, negative: 16, negative conditional: 6, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 59, positive: 34, positive conditional: 1, positive unconditional: 33, negative: 25, negative conditional: 13, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 93, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 85, negative conditional: 7, negative unconditional: 78, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 112, Positive cache size: 96, Positive conditional cache size: 1, Positive unconditional cache size: 95, Negative cache size: 16, Negative conditional cache size: 6, Negative unconditional cache size: 10, Eliminated conditions: 78 ], Maximal queried relation: 4, Independence queries for same thread: 135 - CounterExampleResult [Line: 40]: assertion can be violated assertion can be violated We found a FailurePath: [L25] 0 critical := 0; VAL [critical=0] [L26] FORK 0 fork 0 Process0(); VAL [critical=0] [L37] 1 turn := 1; VAL [critical=0, turn=1] [L38] 1 flag0 := 1; VAL [critical=0, flag0=1, turn=1] [L27] FORK 0 fork 1 Process1(); VAL [critical=0, flag0=1, turn=1] [L56] 2 flag1 := 1; VAL [critical=0, flag0=1, flag1=1, turn=1] [L57] 2 turn := 0; VAL [critical=0, flag0=1, flag1=1, turn=0] [L39] 1 assume flag1 == 0 || turn == 0; VAL [critical=0, flag0=1, flag1=1, turn=0] [L40] 1 assert critical == 0; VAL [critical=0, flag0=1, flag1=1, turn=0] [L41] 1 critical := 1; VAL [critical=1, flag0=1, flag1=1, turn=0] [L42] 1 critical := 0; VAL [critical=0, flag0=1, flag1=1, turn=0] [L43] 1 flag0 := 0; VAL [critical=0, flag0=0, flag1=1, turn=0] [L37] 1 turn := 1; VAL [critical=0, flag0=0, flag1=1, turn=1] [L38] 1 flag0 := 1; VAL [critical=0, flag0=1, flag1=1, turn=1] [L58] 2 assume flag0 == 0 || turn == 1; VAL [critical=0, flag0=1, flag1=1, turn=1] [L59] 2 assert critical == 0; VAL [critical=0, flag0=1, flag1=1, turn=1] [L60] 2 critical := 1; VAL [critical=1, flag0=1, flag1=1, turn=1] [L61] 2 critical := 0; VAL [critical=0, flag0=1, flag1=1, turn=1] [L62] 2 flag1 := 0; VAL [critical=0, flag0=1, flag1=0, turn=1] [L39] 1 assume flag1 == 0 || turn == 0; VAL [critical=0, flag0=1, flag1=0, turn=1] [L40] 1 assert critical == 0; VAL [critical=0, flag0=1, flag1=0, turn=1] [L41] 1 critical := 1; VAL [critical=1, flag0=1, flag1=0, turn=1] [L42] 1 critical := 0; VAL [critical=0, flag0=1, flag1=0, turn=1] [L43] 1 flag0 := 0; VAL [critical=0, flag0=0, flag1=0, turn=1] [L37] 1 turn := 1; VAL [critical=0, flag0=0, flag1=0, turn=1] [L56] 2 flag1 := 1; VAL [critical=0, flag0=0, flag1=1, turn=1] [L57] 2 turn := 0; VAL [critical=0, flag0=0, flag1=1, turn=0] [L58] 2 assume flag0 == 0 || turn == 1; VAL [critical=0, flag0=0, flag1=1, turn=0] [L38] 1 flag0 := 1; VAL [critical=0, flag0=1, flag1=1, turn=0] [L39] 1 assume flag1 == 0 || turn == 0; VAL [critical=0, flag0=1, flag1=1, turn=0] [L59] 2 assert critical == 0; VAL [critical=0, flag0=1, flag1=1, turn=0] [L60] 2 critical := 1; VAL [critical=1, flag0=1, flag1=1, turn=0] [L40] 1 assert critical == 0; VAL [critical=1, flag0=1, flag1=1, turn=0] - CounterExampleResult [Line: 59]: assertion can be violated assertion can be violated We found a FailurePath: [L25] 0 critical := 0; VAL [critical=0] [L26] FORK 0 fork 0 Process0(); VAL [critical=0] [L37] 1 turn := 1; VAL [critical=0, turn=1] [L38] 1 flag0 := 1; VAL [critical=0, flag0=1, turn=1] [L27] FORK 0 fork 1 Process1(); VAL [critical=0, flag0=1, turn=1] [L56] 2 flag1 := 1; VAL [critical=0, flag0=1, flag1=1, turn=1] [L57] 2 turn := 0; VAL [critical=0, flag0=1, flag1=1, turn=0] [L39] 1 assume flag1 == 0 || turn == 0; VAL [critical=0, flag0=1, flag1=1, turn=0] [L40] 1 assert critical == 0; VAL [critical=0, flag0=1, flag1=1, turn=0] [L41] 1 critical := 1; VAL [critical=1, flag0=1, flag1=1, turn=0] [L42] 1 critical := 0; VAL [critical=0, flag0=1, flag1=1, turn=0] [L43] 1 flag0 := 0; VAL [critical=0, flag0=0, flag1=1, turn=0] [L37] 1 turn := 1; VAL [critical=0, flag0=0, flag1=1, turn=1] [L38] 1 flag0 := 1; VAL [critical=0, flag0=1, flag1=1, turn=1] [L58] 2 assume flag0 == 0 || turn == 1; VAL [critical=0, flag0=1, flag1=1, turn=1] [L59] 2 assert critical == 0; VAL [critical=0, flag0=1, flag1=1, turn=1] [L60] 2 critical := 1; VAL [critical=1, flag0=1, flag1=1, turn=1] [L61] 2 critical := 0; VAL [critical=0, flag0=1, flag1=1, turn=1] [L62] 2 flag1 := 0; VAL [critical=0, flag0=1, flag1=0, turn=1] [L39] 1 assume flag1 == 0 || turn == 0; VAL [critical=0, flag0=1, flag1=0, turn=1] [L40] 1 assert critical == 0; VAL [critical=0, flag0=1, flag1=0, turn=1] [L41] 1 critical := 1; VAL [critical=1, flag0=1, flag1=0, turn=1] [L42] 1 critical := 0; VAL [critical=0, flag0=1, flag1=0, turn=1] [L43] 1 flag0 := 0; VAL [critical=0, flag0=0, flag1=0, turn=1] [L37] 1 turn := 1; VAL [critical=0, flag0=0, flag1=0, turn=1] [L56] 2 flag1 := 1; VAL [critical=0, flag0=0, flag1=1, turn=1] [L57] 2 turn := 0; VAL [critical=0, flag0=0, flag1=1, turn=0] [L58] 2 assume flag0 == 0 || turn == 1; VAL [critical=0, flag0=0, flag1=1, turn=0] [L38] 1 flag0 := 1; VAL [critical=0, flag0=1, flag1=1, turn=0] [L39] 1 assume flag1 == 0 || turn == 0; VAL [critical=0, flag0=1, flag1=1, turn=0] [L40] 1 assert critical == 0; VAL [critical=0, flag0=1, flag1=1, turn=0] [L41] 1 critical := 1; VAL [critical=1, flag0=1, flag1=1, turn=0] [L59] 2 assert critical == 0; VAL [critical=1, flag0=1, flag1=1, turn=0] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: Process0 with 1 thread instances CFG has 5 procedures, 47 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 293.5ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.1ms, PartialOrderReductionTime: 215.2ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: Process1 with 1 thread instances CFG has 5 procedures, 47 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 130.8ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.1ms, PartialOrderReductionTime: 123.3ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 47 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 116.4ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.9ms, PartialOrderReductionTime: 97.6ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: Process1Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 47 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 478.1ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.8ms, PartialOrderReductionTime: 136.5ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 7.8ms SsaConstructionTime, 36.7ms SatisfiabilityAnalysisTime, 112.6ms InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 98 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 5/5 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: Process0Thread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 47 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 359.6ms, OverallIterations: 5, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2.1ms, PartialOrderReductionTime: 152.3ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 7.4ms SsaConstructionTime, 28.7ms SatisfiabilityAnalysisTime, 119.7ms InterpolantComputationTime, 156 NumberOfCodeBlocks, 156 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 196 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 130/130 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...