/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/showcase/PetersonWithBug.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-06 14:42:56,771 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-06 14:42:56,774 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-06 14:42:56,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-06 14:42:56,869 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-DelaySleep-NoLbe-Random42.epf [2021-06-06 14:42:56,900 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-06 14:42:56,901 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-06 14:42:56,901 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-06 14:42:56,901 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-06 14:42:56,903 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-06 14:42:56,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-06 14:42:56,904 INFO L138 SettingsManager]: * Use SBE=true [2021-06-06 14:42:56,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-06 14:42:56,904 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-06 14:42:56,904 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-06 14:42:56,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-06 14:42:56,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-06 14:42:56,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-06 14:42:56,905 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-06 14:42:56,905 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-06 14:42:56,906 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-06 14:42:56,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-06 14:42:56,906 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-06 14:42:56,906 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-06 14:42:56,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-06 14:42:56,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-06 14:42:56,906 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-06 14:42:56,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-06 14:42:56,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 14:42:56,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-06 14:42:56,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-06 14:42:56,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-06 14:42:56,907 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-06 14:42:56,907 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-06 14:42:56,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-06 14:42:56,907 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-06 14:42:56,907 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-06 14:42:56,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-06 14:42:56,908 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-06 14:42:56,908 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-06 14:42:56,908 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-06 14:42:57,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-06 14:42:57,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-06 14:42:57,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-06 14:42:57,239 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-06 14:42:57,240 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-06 14:42:57,240 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/PetersonWithBug.bpl [2021-06-06 14:42:57,240 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/PetersonWithBug.bpl' [2021-06-06 14:42:57,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-06 14:42:57,266 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-06 14:42:57,267 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-06 14:42:57,267 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-06 14:42:57,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-06 14:42:57,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "PetersonWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 02:42:57" (1/1) ... [2021-06-06 14:42:57,286 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "PetersonWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 02:42:57" (1/1) ... [2021-06-06 14:42:57,291 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-06 14:42:57,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-06 14:42:57,292 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-06 14:42:57,292 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-06 14:42:57,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "PetersonWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 02:42:57" (1/1) ... [2021-06-06 14:42:57,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "PetersonWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 02:42:57" (1/1) ... [2021-06-06 14:42:57,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "PetersonWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 02:42:57" (1/1) ... [2021-06-06 14:42:57,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "PetersonWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 02:42:57" (1/1) ... [2021-06-06 14:42:57,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "PetersonWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 02:42:57" (1/1) ... [2021-06-06 14:42:57,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "PetersonWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 02:42:57" (1/1) ... [2021-06-06 14:42:57,304 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "PetersonWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 02:42:57" (1/1) ... [2021-06-06 14:42:57,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-06 14:42:57,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-06 14:42:57,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-06 14:42:57,306 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-06 14:42:57,307 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "PetersonWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 02:42:57" (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 [2021-06-06 14:42:57,382 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Process0 given in one single declaration [2021-06-06 14:42:57,382 INFO L130 BoogieDeclarations]: Found specification of procedure Process0 [2021-06-06 14:42:57,382 INFO L138 BoogieDeclarations]: Found implementation of procedure Process0 [2021-06-06 14:42:57,383 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Process1 given in one single declaration [2021-06-06 14:42:57,383 INFO L130 BoogieDeclarations]: Found specification of procedure Process1 [2021-06-06 14:42:57,383 INFO L138 BoogieDeclarations]: Found implementation of procedure Process1 [2021-06-06 14:42:57,383 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-06 14:42:57,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-06 14:42:57,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-06 14:42:57,386 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-06 14:42:57,549 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-06 14:42:57,550 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-06-06 14:42:57,551 INFO L202 PluginConnector]: Adding new model PetersonWithBug.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 02:42:57 BoogieIcfgContainer [2021-06-06 14:42:57,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-06 14:42:57,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-06 14:42:57,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-06 14:42:57,557 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-06 14:42:57,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "PetersonWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 02:42:57" (1/2) ... [2021-06-06 14:42:57,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e2fd4bf and model type PetersonWithBug.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.06 02:42:57, skipping insertion in model container [2021-06-06 14:42:57,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "PetersonWithBug.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 02:42:57" (2/2) ... [2021-06-06 14:42:57,561 INFO L111 eAbstractionObserver]: Analyzing ICFG PetersonWithBug.bpl [2021-06-06 14:42:57,571 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-06 14:42:57,571 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-06 14:42:57,572 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-06-06 14:42:57,572 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-06 14:42:57,613 WARN L313 ript$VariableManager]: TermVariabe Process0Thread1of1ForFork0_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:42:57,613 WARN L313 ript$VariableManager]: TermVariabe Process0Thread1of1ForFork0_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:42:57,617 WARN L313 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:42:57,617 WARN L313 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-06 14:42:57,633 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-06 14:42:57,674 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 [2021-06-06 14:42:57,809 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-06 14:42:57,809 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-06 14:42:57,810 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-06 14:42:57,810 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-06 14:42:57,810 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-06 14:42:57,810 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-06 14:42:57,810 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-06 14:42:57,810 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == Process0======== [2021-06-06 14:42:58,035 INFO L301 ceAbstractionStarter]: Result for error location Process0 was SAFE (1/5) [2021-06-06 14:42:58,037 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 [2021-06-06 14:42:58,056 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-06 14:42:58,056 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-06 14:42:58,056 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-06 14:42:58,056 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-06 14:42:58,056 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-06 14:42:58,057 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-06 14:42:58,057 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-06 14:42:58,057 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == Process1======== [2021-06-06 14:42:58,121 INFO L301 ceAbstractionStarter]: Result for error location Process1 was SAFE (2/5) [2021-06-06 14:42:58,121 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) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-06 14:42:58,128 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-06 14:42:58,129 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-06 14:42:58,129 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-06 14:42:58,129 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-06 14:42:58,129 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-06 14:42:58,129 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-06 14:42:58,129 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-06 14:42:58,129 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-06 14:42:58,213 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (3/5) [2021-06-06 14:42:58,213 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) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-06 14:42:58,225 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-06 14:42:58,225 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-06 14:42:58,225 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-06 14:42:58,225 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-06 14:42:58,226 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-06 14:42:58,226 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-06 14:42:58,226 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-06 14:42:58,226 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == Process1Thread1of1ForFork1======== [2021-06-06 14:42:58,261 INFO L430 AbstractCegarLoop]: === Iteration 1 === [Process1Err0ASSERT_VIOLATIONASSERT]=== [2021-06-06 14:42:58,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 14:42:58,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1081383448, now seen corresponding path program 1 times [2021-06-06 14:42:58,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 14:42:58,273 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369979275] [2021-06-06 14:42:58,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 14:42:58,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 14:42:58,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 14:42:58,370 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 14:42:58,371 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369979275] [2021-06-06 14:42:58,371 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369979275] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 14:42:58,371 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 14:42:58,372 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-06 14:42:58,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289843536] [2021-06-06 14:42:58,376 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-06 14:42:58,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 14:42:58,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-06 14:42:58,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-06 14:42:58,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:42:58,389 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 14:42:58,390 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2021-06-06 14:42:58,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:42:58,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 14:42:58,436 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-06 14:42:58,436 INFO L430 AbstractCegarLoop]: === Iteration 2 === [Process1Err0ASSERT_VIOLATIONASSERT]=== [2021-06-06 14:42:58,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 14:42:58,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1652930875, now seen corresponding path program 2 times [2021-06-06 14:42:58,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 14:42:58,437 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828657566] [2021-06-06 14:42:58,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 14:42:58,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 14:42:58,474 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-06 14:42:58,475 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 14:42:58,475 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828657566] [2021-06-06 14:42:58,475 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828657566] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 14:42:58,475 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 14:42:58,476 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-06 14:42:58,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789790325] [2021-06-06 14:42:58,477 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-06 14:42:58,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 14:42:58,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-06 14:42:58,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-06 14:42:58,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:42:58,478 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 14:42:58,478 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2021-06-06 14:42:58,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 14:42:58,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:42:58,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 14:42:58,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:42:58,509 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-06 14:42:58,509 INFO L430 AbstractCegarLoop]: === Iteration 3 === [Process1Err0ASSERT_VIOLATIONASSERT]=== [2021-06-06 14:42:58,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 14:42:58,510 INFO L82 PathProgramCache]: Analyzing trace with hash 143302185, now seen corresponding path program 1 times [2021-06-06 14:42:58,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 14:42:58,510 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429420716] [2021-06-06 14:42:58,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 14:42:58,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 14:42:58,539 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-06-06 14:42:58,539 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 14:42:58,540 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429420716] [2021-06-06 14:42:58,540 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429420716] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 14:42:58,540 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 14:42:58,540 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-06 14:42:58,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823564794] [2021-06-06 14:42:58,541 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-06 14:42:58,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 14:42:58,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-06 14:42:58,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-06 14:42:58,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:42:58,542 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 14:42:58,542 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 14:42:58,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 14:42:58,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:42:58,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:42:58,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 14:42:58,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:42:58,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:42:58,568 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-06 14:42:58,568 INFO L430 AbstractCegarLoop]: === Iteration 4 === [Process1Err0ASSERT_VIOLATIONASSERT]=== [2021-06-06 14:42:58,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 14:42:58,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1231594561, now seen corresponding path program 2 times [2021-06-06 14:42:58,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 14:42:58,569 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236949136] [2021-06-06 14:42:58,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 14:42:58,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 14:42:58,601 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-06-06 14:42:58,602 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 14:42:58,602 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236949136] [2021-06-06 14:42:58,602 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236949136] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 14:42:58,602 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 14:42:58,602 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-06 14:42:58,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950933345] [2021-06-06 14:42:58,603 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-06 14:42:58,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 14:42:58,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-06 14:42:58,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-06 14:42:58,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:42:58,604 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 14:42:58,604 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-06-06 14:42:58,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 14:42:58,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:42:58,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:42:58,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:42:58,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 14:42:58,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:42:58,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:42:58,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:42:58,645 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-06 14:42:58,645 INFO L430 AbstractCegarLoop]: === Iteration 5 === [Process1Err0ASSERT_VIOLATIONASSERT]=== [2021-06-06 14:42:58,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 14:42:58,645 INFO L82 PathProgramCache]: Analyzing trace with hash -899127001, now seen corresponding path program 3 times [2021-06-06 14:42:58,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 14:42:58,646 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817339490] [2021-06-06 14:42:58,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 14:42:58,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 14:42:58,686 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-06 14:42:58,687 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 14:42:58,687 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817339490] [2021-06-06 14:42:58,687 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817339490] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 14:42:58,687 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 14:42:58,687 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-06 14:42:58,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012968400] [2021-06-06 14:42:58,688 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-06 14:42:58,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 14:42:58,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-06 14:42:58,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-06 14:42:58,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:42:58,689 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 14:42:58,689 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2021-06-06 14:42:58,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 14:42:58,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:42:58,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:42:58,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:42:58,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:42:58,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 14:42:58,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:42:58,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:42:58,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:42:58,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:42:58,719 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-06 14:42:58,719 INFO L430 AbstractCegarLoop]: === Iteration 6 === [Process1Err0ASSERT_VIOLATIONASSERT]=== [2021-06-06 14:42:58,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 14:42:58,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1168732141, now seen corresponding path program 4 times [2021-06-06 14:42:58,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 14:42:58,720 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285111321] [2021-06-06 14:42:58,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 14:42:58,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-06 14:42:58,727 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-06 14:42:58,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-06 14:42:58,732 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-06 14:42:58,744 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-06 14:42:58,745 INFO L655 BasicCegarLoop]: Counterexample might be feasible [2021-06-06 14:42:58,745 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-06 14:42:58,748 INFO L301 ceAbstractionStarter]: Result for error location Process1Thread1of1ForFork1 was UNSAFE (4/5) [2021-06-06 14:42:58,749 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 [2021-06-06 14:42:58,757 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-06 14:42:58,757 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-06 14:42:58,757 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-06 14:42:58,757 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-06 14:42:58,757 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-06 14:42:58,757 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-06 14:42:58,757 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-06 14:42:58,758 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == Process0Thread1of1ForFork0======== [2021-06-06 14:42:58,781 INFO L430 AbstractCegarLoop]: === Iteration 1 === [Process0Err0ASSERT_VIOLATIONASSERT]=== [2021-06-06 14:42:58,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 14:42:58,782 INFO L82 PathProgramCache]: Analyzing trace with hash 675330283, now seen corresponding path program 1 times [2021-06-06 14:42:58,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 14:42:58,782 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847152403] [2021-06-06 14:42:58,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 14:42:58,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 14:42:58,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 14:42:58,789 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 14:42:58,789 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847152403] [2021-06-06 14:42:58,789 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847152403] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 14:42:58,789 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 14:42:58,789 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-06 14:42:58,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387776764] [2021-06-06 14:42:58,790 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-06 14:42:58,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 14:42:58,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-06 14:42:58,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-06 14:42:58,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:42:58,791 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 14:42:58,791 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-06-06 14:42:58,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:42:58,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:42:58,798 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-06 14:42:58,798 INFO L430 AbstractCegarLoop]: === Iteration 2 === [Process0Err0ASSERT_VIOLATIONASSERT]=== [2021-06-06 14:42:58,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 14:42:58,798 INFO L82 PathProgramCache]: Analyzing trace with hash 675329322, now seen corresponding path program 1 times [2021-06-06 14:42:58,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 14:42:58,799 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172908780] [2021-06-06 14:42:58,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 14:42:58,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 14:42:58,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 14:42:58,817 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 14:42:58,817 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172908780] [2021-06-06 14:42:58,817 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172908780] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 14:42:58,817 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 14:42:58,818 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-06 14:42:58,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623010018] [2021-06-06 14:42:58,818 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-06 14:42:58,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 14:42:58,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-06 14:42:58,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-06 14:42:58,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:42:58,819 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 14:42:58,819 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-06-06 14:42:58,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:42:58,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:42:58,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:42:58,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 14:42:58,881 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-06 14:42:58,881 INFO L430 AbstractCegarLoop]: === Iteration 3 === [Process0Err0ASSERT_VIOLATIONASSERT]=== [2021-06-06 14:42:58,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 14:42:58,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1652575005, now seen corresponding path program 1 times [2021-06-06 14:42:58,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 14:42:58,882 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909939301] [2021-06-06 14:42:58,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 14:42:58,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 14:42:58,903 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 14:42:58,904 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 14:42:58,904 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909939301] [2021-06-06 14:42:58,904 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909939301] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 14:42:58,904 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 14:42:58,904 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-06 14:42:58,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353983276] [2021-06-06 14:42:58,904 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-06 14:42:58,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 14:42:58,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-06 14:42:58,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-06 14:42:58,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:42:58,905 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 14:42:58,905 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) [2021-06-06 14:42:58,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:42:58,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 14:42:58,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:42:58,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:42:58,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 14:42:58,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:42:58,931 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-06 14:42:58,932 INFO L430 AbstractCegarLoop]: === Iteration 4 === [Process0Err0ASSERT_VIOLATIONASSERT]=== [2021-06-06 14:42:58,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 14:42:58,932 INFO L82 PathProgramCache]: Analyzing trace with hash -828902465, now seen corresponding path program 1 times [2021-06-06 14:42:58,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 14:42:58,932 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448842877] [2021-06-06 14:42:58,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 14:42:58,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 14:42:58,952 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-06 14:42:58,953 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 14:42:58,953 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448842877] [2021-06-06 14:42:58,953 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448842877] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 14:42:58,953 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 14:42:58,953 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-06 14:42:58,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618717278] [2021-06-06 14:42:58,953 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-06 14:42:58,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 14:42:58,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-06 14:42:58,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-06 14:42:58,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:42:58,954 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 14:42:58,954 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 14:42:58,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:42:58,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 14:42:58,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:42:58,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:42:58,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:42:58,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 14:42:58,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:42:58,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:42:58,969 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-06 14:42:58,970 INFO L430 AbstractCegarLoop]: === Iteration 5 === [Process0Err0ASSERT_VIOLATIONASSERT]=== [2021-06-06 14:42:58,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 14:42:58,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1231238691, now seen corresponding path program 2 times [2021-06-06 14:42:58,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 14:42:58,970 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720182575] [2021-06-06 14:42:58,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 14:42:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 14:42:58,993 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-06-06 14:42:58,993 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 14:42:58,993 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720182575] [2021-06-06 14:42:58,993 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720182575] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 14:42:58,993 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 14:42:58,993 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-06 14:42:58,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556943593] [2021-06-06 14:42:58,994 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-06 14:42:58,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 14:42:58,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-06 14:42:58,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-06 14:42:58,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:42:58,995 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 14:42:58,995 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-06-06 14:42:58,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:42:58,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 14:42:58,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:42:58,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:42:58,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:42:59,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:42:59,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 14:42:59,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:42:59,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:42:59,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:42:59,029 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-06 14:42:59,029 INFO L430 AbstractCegarLoop]: === Iteration 6 === [Process0Err0ASSERT_VIOLATIONASSERT]=== [2021-06-06 14:42:59,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 14:42:59,029 INFO L82 PathProgramCache]: Analyzing trace with hash -898771131, now seen corresponding path program 3 times [2021-06-06 14:42:59,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 14:42:59,029 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533595295] [2021-06-06 14:42:59,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 14:42:59,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 14:42:59,076 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-06 14:42:59,076 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 14:42:59,077 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533595295] [2021-06-06 14:42:59,077 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533595295] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 14:42:59,077 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 14:42:59,077 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-06 14:42:59,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254213667] [2021-06-06 14:42:59,080 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-06 14:42:59,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 14:42:59,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-06 14:42:59,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-06 14:42:59,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:42:59,083 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 14:42:59,083 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2021-06-06 14:42:59,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:42:59,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 14:42:59,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:42:59,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:42:59,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:42:59,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:42:59,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 14:42:59,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 14:42:59,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:42:59,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:42:59,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:42:59,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 14:42:59,113 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-06 14:42:59,114 INFO L430 AbstractCegarLoop]: === Iteration 7 === [Process0Err0ASSERT_VIOLATIONASSERT]=== [2021-06-06 14:42:59,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 14:42:59,114 INFO L82 PathProgramCache]: Analyzing trace with hash -1168376271, now seen corresponding path program 4 times [2021-06-06 14:42:59,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 14:42:59,114 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999494191] [2021-06-06 14:42:59,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 14:42:59,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-06 14:42:59,127 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-06 14:42:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-06 14:42:59,135 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-06 14:42:59,137 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-06 14:42:59,137 INFO L655 BasicCegarLoop]: Counterexample might be feasible [2021-06-06 14:42:59,137 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-06 14:42:59,140 INFO L301 ceAbstractionStarter]: Result for error location Process0Thread1of1ForFork0 was UNSAFE (5/5) [2021-06-06 14:42:59,140 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-06 14:42:59,156 INFO L202 PluginConnector]: Adding new model PetersonWithBug.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.06 02:42:59 BasicIcfg [2021-06-06 14:42:59,156 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-06 14:42:59,157 INFO L168 Benchmark]: Toolchain (without parser) took 1891.31 ms. Allocated memory is still 362.8 MB. Free memory was 342.4 MB in the beginning and 206.6 MB in the end (delta: 135.8 MB). Peak memory consumption was 138.9 MB. Max. memory is 16.0 GB. [2021-06-06 14:42:59,157 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 362.8 MB. Free memory was 343.5 MB in the beginning and 343.4 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-06 14:42:59,158 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.79 ms. Allocated memory is still 362.8 MB. Free memory was 342.4 MB in the beginning and 340.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-06 14:42:59,158 INFO L168 Benchmark]: Boogie Preprocessor took 12.89 ms. Allocated memory is still 362.8 MB. Free memory was 340.9 MB in the beginning and 339.9 MB in the end (delta: 970.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-06 14:42:59,158 INFO L168 Benchmark]: RCFGBuilder took 245.11 ms. Allocated memory is still 362.8 MB. Free memory was 339.9 MB in the beginning and 330.1 MB in the end (delta: 9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-06-06 14:42:59,159 INFO L168 Benchmark]: TraceAbstraction took 1604.07 ms. Allocated memory is still 362.8 MB. Free memory was 329.6 MB in the beginning and 206.6 MB in the end (delta: 122.9 MB). Peak memory consumption was 124.2 MB. Max. memory is 16.0 GB. [2021-06-06 14:42:59,160 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 0.13 ms. Allocated memory is still 362.8 MB. Free memory was 343.5 MB in the beginning and 343.4 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 24.79 ms. Allocated memory is still 362.8 MB. Free memory was 342.4 MB in the beginning and 340.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.89 ms. Allocated memory is still 362.8 MB. Free memory was 340.9 MB in the beginning and 339.9 MB in the end (delta: 970.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 245.11 ms. Allocated memory is still 362.8 MB. Free memory was 339.9 MB in the beginning and 330.1 MB in the end (delta: 9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1604.07 ms. Allocated memory is still 362.8 MB. Free memory was 329.6 MB in the beginning and 206.6 MB in the end (delta: 122.9 MB). Peak memory consumption was 124.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 483, positive: 381, positive conditional: 381, positive unconditional: 0, negative: 102, negative conditional: 102, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 403, positive: 381, positive conditional: 381, positive unconditional: 0, negative: 22, negative conditional: 22, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 403, positive: 381, positive conditional: 0, positive unconditional: 381, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 131, positive: 120, positive conditional: 0, positive unconditional: 120, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 131, positive: 112, positive conditional: 0, positive unconditional: 112, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 19, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 90, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 63, negative conditional: 0, negative unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 403, positive: 261, positive conditional: 0, positive unconditional: 261, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 131, unknown conditional: 0, unknown unconditional: 131] , Statistics on independence cache: Total cache size (in pairs): 131, Positive cache size: 120, Positive conditional cache size: 0, Positive unconditional cache size: 120, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 ], Maximal queried relation: 0, Independence queries for same thread: 80 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 483, positive: 381, positive conditional: 381, positive unconditional: 0, negative: 102, negative conditional: 102, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 403, positive: 381, positive conditional: 381, positive unconditional: 0, negative: 22, negative conditional: 22, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 403, positive: 381, positive conditional: 0, positive unconditional: 381, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 131, positive: 120, positive conditional: 0, positive unconditional: 120, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 131, positive: 112, positive conditional: 0, positive unconditional: 112, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 19, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 39, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 403, positive: 261, positive conditional: 0, positive unconditional: 261, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 131, unknown conditional: 0, unknown unconditional: 131] , Statistics on independence cache: Total cache size (in pairs): 131, Positive cache size: 120, Positive conditional cache size: 0, Positive unconditional cache size: 120, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 ], Maximal queried relation: 0, Independence queries for same thread: 80 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 483, positive: 381, positive conditional: 381, positive unconditional: 0, negative: 102, negative conditional: 102, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 403, positive: 381, positive conditional: 381, positive unconditional: 0, negative: 22, negative conditional: 22, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 403, positive: 381, positive conditional: 0, positive unconditional: 381, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 131, positive: 120, positive conditional: 0, positive unconditional: 120, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 131, positive: 112, positive conditional: 0, positive unconditional: 112, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 19, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 64, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 403, positive: 261, positive conditional: 0, positive unconditional: 261, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 131, unknown conditional: 0, unknown unconditional: 131] , Statistics on independence cache: Total cache size (in pairs): 131, Positive cache size: 120, Positive conditional cache size: 0, Positive unconditional cache size: 120, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 ], Maximal queried relation: 0, Independence queries for same thread: 80 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 763, positive: 494, positive conditional: 494, positive unconditional: 0, negative: 269, negative conditional: 269, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 582, positive: 494, positive conditional: 494, positive unconditional: 0, negative: 88, negative conditional: 88, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 582, positive: 491, positive conditional: 0, positive unconditional: 491, negative: 91, negative conditional: 0, negative unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 123, positive: 107, positive conditional: 0, positive unconditional: 107, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 123, positive: 97, positive conditional: 0, positive unconditional: 97, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 26, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 46, positive: 12, positive conditional: 2, positive unconditional: 10, negative: 34, negative conditional: 18, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 76, positive: 12, positive conditional: 2, positive unconditional: 10, negative: 64, negative conditional: 24, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 582, positive: 384, positive conditional: 0, positive unconditional: 384, negative: 75, negative conditional: 0, negative unconditional: 75, unknown: 123, unknown conditional: 0, unknown unconditional: 123] , Statistics on independence cache: Total cache size (in pairs): 143, Positive cache size: 109, Positive conditional cache size: 2, Positive unconditional cache size: 107, Negative cache size: 34, Negative conditional cache size: 18, Negative unconditional cache size: 16, SemanticConditionEliminator.Independence Queries: [ total: 266, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 263, negative conditional: 49, negative unconditional: 214, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 266, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 263, negative conditional: 49, negative unconditional: 214, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 46, positive: 12, positive conditional: 2, positive unconditional: 10, negative: 34, negative conditional: 18, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 76, positive: 12, positive conditional: 2, positive unconditional: 10, negative: 64, negative conditional: 24, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 266, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 245, negative conditional: 31, negative unconditional: 214, unknown: 20, unknown conditional: 20, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 143, Positive cache size: 109, Positive conditional cache size: 2, Positive unconditional cache size: 107, Negative cache size: 34, Negative conditional cache size: 18, Negative unconditional cache size: 16, Eliminated conditions: 214, SemanticConditionEliminator.Independence Queries: [ total: 266, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 263, negative conditional: 49, negative unconditional: 214, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 266, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 263, negative conditional: 49, negative unconditional: 214, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 46, positive: 12, positive conditional: 2, positive unconditional: 10, negative: 34, negative conditional: 18, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 76, positive: 12, positive conditional: 2, positive unconditional: 10, negative: 64, negative conditional: 24, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 266, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 245, negative conditional: 31, negative unconditional: 214, unknown: 20, unknown conditional: 20, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 143, Positive cache size: 109, Positive conditional cache size: 2, Positive unconditional cache size: 107, Negative cache size: 34, Negative conditional cache size: 18, Negative unconditional cache size: 16, Eliminated conditions: 214, SemanticConditionEliminator.Independence Queries: [ total: 266, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 263, negative conditional: 49, negative unconditional: 214, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 266, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 263, negative conditional: 49, negative unconditional: 214, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 46, positive: 12, positive conditional: 2, positive unconditional: 10, negative: 34, negative conditional: 18, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 76, positive: 12, positive conditional: 2, positive unconditional: 10, negative: 64, negative conditional: 24, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 266, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 245, negative conditional: 31, negative unconditional: 214, unknown: 20, unknown conditional: 20, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 143, Positive cache size: 109, Positive conditional cache size: 2, Positive unconditional cache size: 107, Negative cache size: 34, Negative conditional cache size: 18, Negative unconditional cache size: 16, Eliminated conditions: 214, SemanticConditionEliminator.Independence Queries: [ total: 266, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 263, negative conditional: 49, negative unconditional: 214, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 266, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 263, negative conditional: 49, negative unconditional: 214, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 46, positive: 12, positive conditional: 2, positive unconditional: 10, negative: 34, negative conditional: 18, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 76, positive: 12, positive conditional: 2, positive unconditional: 10, negative: 64, negative conditional: 24, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 266, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 245, negative conditional: 31, negative unconditional: 214, unknown: 20, unknown conditional: 20, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 143, Positive cache size: 109, Positive conditional cache size: 2, Positive unconditional cache size: 107, Negative cache size: 34, Negative conditional cache size: 18, Negative unconditional cache size: 16, Eliminated conditions: 214, SemanticConditionEliminator.Independence Queries: [ total: 266, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 263, negative conditional: 49, negative unconditional: 214, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 266, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 263, negative conditional: 49, negative unconditional: 214, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 46, positive: 12, positive conditional: 2, positive unconditional: 10, negative: 34, negative conditional: 18, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 76, positive: 12, positive conditional: 2, positive unconditional: 10, negative: 64, negative conditional: 24, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 266, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 245, negative conditional: 31, negative unconditional: 214, unknown: 20, unknown conditional: 20, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 143, Positive cache size: 109, Positive conditional cache size: 2, Positive unconditional cache size: 107, Negative cache size: 34, Negative conditional cache size: 18, Negative unconditional cache size: 16, Eliminated conditions: 214 ], Maximal queried relation: 5, Independence queries for same thread: 181 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 629, positive: 412, positive conditional: 412, positive unconditional: 0, negative: 217, negative conditional: 217, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 488, positive: 412, positive conditional: 412, positive unconditional: 0, negative: 76, negative conditional: 76, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 488, positive: 409, positive conditional: 0, positive unconditional: 409, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 98, positive: 82, positive conditional: 0, positive unconditional: 82, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 98, positive: 73, positive conditional: 0, positive unconditional: 73, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 25, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 41, positive: 11, positive conditional: 2, positive unconditional: 9, negative: 30, negative conditional: 14, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 88, positive: 16, positive conditional: 7, positive unconditional: 9, negative: 72, negative conditional: 17, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 488, positive: 327, positive conditional: 0, positive unconditional: 327, negative: 63, negative conditional: 0, negative unconditional: 63, unknown: 98, unknown conditional: 0, unknown unconditional: 98] , Statistics on independence cache: Total cache size (in pairs): 114, Positive cache size: 84, Positive conditional cache size: 2, Positive unconditional cache size: 82, Negative cache size: 30, Negative conditional cache size: 14, Negative unconditional cache size: 16, SemanticConditionEliminator.Independence Queries: [ total: 293, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 290, negative conditional: 38, negative unconditional: 252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 293, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 290, negative conditional: 38, negative unconditional: 252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 41, positive: 11, positive conditional: 2, positive unconditional: 9, negative: 30, negative conditional: 14, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 88, positive: 16, positive conditional: 7, positive unconditional: 9, negative: 72, negative conditional: 17, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 293, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 276, negative conditional: 24, negative unconditional: 252, unknown: 16, unknown conditional: 16, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 114, Positive cache size: 84, Positive conditional cache size: 2, Positive unconditional cache size: 82, Negative cache size: 30, Negative conditional cache size: 14, Negative unconditional cache size: 16, Eliminated conditions: 252, SemanticConditionEliminator.Independence Queries: [ total: 293, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 290, negative conditional: 38, negative unconditional: 252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 293, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 290, negative conditional: 38, negative unconditional: 252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 41, positive: 11, positive conditional: 2, positive unconditional: 9, negative: 30, negative conditional: 14, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 88, positive: 16, positive conditional: 7, positive unconditional: 9, negative: 72, negative conditional: 17, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 293, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 276, negative conditional: 24, negative unconditional: 252, unknown: 16, unknown conditional: 16, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 114, Positive cache size: 84, Positive conditional cache size: 2, Positive unconditional cache size: 82, Negative cache size: 30, Negative conditional cache size: 14, Negative unconditional cache size: 16, Eliminated conditions: 252, SemanticConditionEliminator.Independence Queries: [ total: 293, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 290, negative conditional: 38, negative unconditional: 252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 293, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 290, negative conditional: 38, negative unconditional: 252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 41, positive: 11, positive conditional: 2, positive unconditional: 9, negative: 30, negative conditional: 14, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 88, positive: 16, positive conditional: 7, positive unconditional: 9, negative: 72, negative conditional: 17, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 293, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 276, negative conditional: 24, negative unconditional: 252, unknown: 16, unknown conditional: 16, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 114, Positive cache size: 84, Positive conditional cache size: 2, Positive unconditional cache size: 82, Negative cache size: 30, Negative conditional cache size: 14, Negative unconditional cache size: 16, Eliminated conditions: 252, SemanticConditionEliminator.Independence Queries: [ total: 293, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 290, negative conditional: 38, negative unconditional: 252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 293, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 290, negative conditional: 38, negative unconditional: 252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 41, positive: 11, positive conditional: 2, positive unconditional: 9, negative: 30, negative conditional: 14, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 88, positive: 16, positive conditional: 7, positive unconditional: 9, negative: 72, negative conditional: 17, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 293, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 276, negative conditional: 24, negative unconditional: 252, unknown: 16, unknown conditional: 16, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 114, Positive cache size: 84, Positive conditional cache size: 2, Positive unconditional cache size: 82, Negative cache size: 30, Negative conditional cache size: 14, Negative unconditional cache size: 16, Eliminated conditions: 252, SemanticConditionEliminator.Independence Queries: [ total: 293, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 290, negative conditional: 38, negative unconditional: 252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 293, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 290, negative conditional: 38, negative unconditional: 252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 41, positive: 11, positive conditional: 2, positive unconditional: 9, negative: 30, negative conditional: 14, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 88, positive: 16, positive conditional: 7, positive unconditional: 9, negative: 72, negative conditional: 17, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 293, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 276, negative conditional: 24, negative unconditional: 252, unknown: 16, unknown conditional: 16, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 114, Positive cache size: 84, Positive conditional cache size: 2, Positive unconditional cache size: 82, Negative cache size: 30, Negative conditional cache size: 14, Negative unconditional cache size: 16, Eliminated conditions: 252, SemanticConditionEliminator.Independence Queries: [ total: 293, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 290, negative conditional: 38, negative unconditional: 252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 293, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 290, negative conditional: 38, negative unconditional: 252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 41, positive: 11, positive conditional: 2, positive unconditional: 9, negative: 30, negative conditional: 14, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 88, positive: 16, positive conditional: 7, positive unconditional: 9, negative: 72, negative conditional: 17, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 293, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 276, negative conditional: 24, negative unconditional: 252, unknown: 16, unknown conditional: 16, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 114, Positive cache size: 84, Positive conditional cache size: 2, Positive unconditional cache size: 82, Negative cache size: 30, Negative conditional cache size: 14, Negative unconditional cache size: 16, Eliminated conditions: 252 ], Maximal queried relation: 6, Independence queries for same thread: 141 - 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] [L58] 2 assume flag0 == 0 || turn == 1; VAL [critical=0, flag0=0, flag1=1, turn=1] [L59] 2 assert critical == 0; VAL [critical=0, flag0=0, flag1=1, turn=1] [L60] 2 critical := 1; VAL [critical=1, flag0=0, flag1=1, turn=1] [L61] 2 critical := 0; VAL [critical=0, flag0=0, flag1=1, turn=1] [L62] 2 flag1 := 0; 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] [L59] 2 assert critical == 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] [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] [L58] 2 assume flag0 == 0 || turn == 1; VAL [critical=0, flag0=0, flag1=1, turn=1] [L59] 2 assert critical == 0; VAL [critical=0, flag0=0, flag1=1, turn=1] [L60] 2 critical := 1; VAL [critical=1, flag0=0, flag1=1, turn=1] [L61] 2 critical := 0; VAL [critical=0, flag0=0, flag1=1, turn=1] [L62] 2 flag1 := 0; 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: 330.5ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 31.6ms, PartialOrderReductionTime: 181.4ms, 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: 81.3ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.1ms, PartialOrderReductionTime: 61.2ms, 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: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 47 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 89.5ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.1ms, PartialOrderReductionTime: 80.8ms, 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: 533.1ms, OverallIterations: 6, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.0ms, PartialOrderReductionTime: 205.5ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 19, 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: 7.7ms SsaConstructionTime, 38.3ms SatisfiabilityAnalysisTime, 150.6ms InterpolantComputationTime, 165 NumberOfCodeBlocks, 165 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 133 ConstructedInterpolants, 0 QuantifiedInterpolants, 217 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 68/68 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: 389.3ms, OverallIterations: 7, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.8ms, PartialOrderReductionTime: 192.9ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 21, 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: 4.6ms SsaConstructionTime, 31.1ms SatisfiabilityAnalysisTime, 97.7ms InterpolantComputationTime, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 127 ConstructedInterpolants, 0 QuantifiedInterpolants, 217 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 53/53 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...