/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label41.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 16:49:59,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 16:49:59,511 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 16:49:59,548 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 16:49:59,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 16:49:59,560 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 16:49:59,561 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 16:49:59,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 16:49:59,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 16:49:59,570 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 16:49:59,572 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 16:49:59,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 16:49:59,574 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 16:49:59,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 16:49:59,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 16:49:59,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 16:49:59,580 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 16:49:59,581 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 16:49:59,583 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 16:49:59,589 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 16:49:59,591 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 16:49:59,592 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 16:49:59,593 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 16:49:59,594 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 16:49:59,598 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 16:49:59,611 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-22 16:49:59,650 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 16:49:59,650 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 16:49:59,652 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 16:49:59,652 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 16:49:59,652 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 16:49:59,653 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 16:49:59,653 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 16:49:59,653 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 16:49:59,653 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 16:49:59,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 16:49:59,654 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 16:49:59,654 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 16:49:59,655 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 16:49:59,655 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 16:49:59,655 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 16:49:59,656 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 16:49:59,656 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 16:49:59,656 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 16:49:59,656 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 16:49:59,656 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 16:49:59,657 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 16:49:59,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 16:49:59,657 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 16:49:59,657 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 16:49:59,657 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 16:49:59,657 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 16:49:59,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 16:49:59,658 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 16:49:59,658 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 16:49:59,658 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-22 16:49:59,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 16:49:59,981 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 16:49:59,985 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 16:49:59,987 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 16:49:59,987 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 16:49:59,988 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label41.c [2020-08-22 16:50:00,049 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71eb0ac41/a96b9af323044df693f10037870e94b0/FLAGd2131b79c [2020-08-22 16:50:00,627 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 16:50:00,628 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label41.c [2020-08-22 16:50:00,644 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71eb0ac41/a96b9af323044df693f10037870e94b0/FLAGd2131b79c [2020-08-22 16:50:00,926 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71eb0ac41/a96b9af323044df693f10037870e94b0 [2020-08-22 16:50:00,936 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 16:50:00,938 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 16:50:00,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 16:50:00,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 16:50:00,943 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 16:50:00,944 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:50:00" (1/1) ... [2020-08-22 16:50:00,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@157ca41e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:50:00, skipping insertion in model container [2020-08-22 16:50:00,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:50:00" (1/1) ... [2020-08-22 16:50:00,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 16:50:01,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 16:50:01,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:50:01,549 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 16:50:01,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:50:01,657 INFO L208 MainTranslator]: Completed translation [2020-08-22 16:50:01,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:50:01 WrapperNode [2020-08-22 16:50:01,658 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 16:50:01,659 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 16:50:01,659 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 16:50:01,659 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 16:50:01,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:50:01" (1/1) ... [2020-08-22 16:50:01,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:50:01" (1/1) ... [2020-08-22 16:50:01,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:50:01" (1/1) ... [2020-08-22 16:50:01,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:50:01" (1/1) ... [2020-08-22 16:50:01,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:50:01" (1/1) ... [2020-08-22 16:50:01,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:50:01" (1/1) ... [2020-08-22 16:50:01,759 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:50:01" (1/1) ... [2020-08-22 16:50:01,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 16:50:01,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 16:50:01,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 16:50:01,767 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 16:50:01,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:50:01" (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 [2020-08-22 16:50:01,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 16:50:01,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 16:50:01,851 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-22 16:50:01,851 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 16:50:01,851 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-22 16:50:01,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 16:50:01,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 16:50:01,852 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-22 16:50:01,852 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 16:50:01,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 16:50:01,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 16:50:02,953 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 16:50:02,953 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 16:50:02,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:50:02 BoogieIcfgContainer [2020-08-22 16:50:02,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 16:50:02,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 16:50:02,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 16:50:02,967 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 16:50:02,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 04:50:00" (1/3) ... [2020-08-22 16:50:02,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2caf1822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:50:02, skipping insertion in model container [2020-08-22 16:50:02,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:50:01" (2/3) ... [2020-08-22 16:50:02,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2caf1822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:50:02, skipping insertion in model container [2020-08-22 16:50:02,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:50:02" (3/3) ... [2020-08-22 16:50:02,971 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label41.c [2020-08-22 16:50:02,981 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-08-22 16:50:02,991 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 16:50:03,004 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 16:50:03,037 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 16:50:03,038 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 16:50:03,038 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-08-22 16:50:03,038 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 16:50:03,038 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 16:50:03,038 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 16:50:03,039 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 16:50:03,039 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 16:50:03,062 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-08-22 16:50:03,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-08-22 16:50:03,072 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:50:03,073 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:50:03,073 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:50:03,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:50:03,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1692915649, now seen corresponding path program 1 times [2020-08-22 16:50:03,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:50:03,089 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260361166] [2020-08-22 16:50:03,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:50:03,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:03,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:50:03,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:03,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:50:03,639 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260361166] [2020-08-22 16:50:03,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:50:03,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 16:50:03,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574915685] [2020-08-22 16:50:03,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 16:50:03,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:50:03,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 16:50:03,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 16:50:03,663 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-08-22 16:50:04,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:50:04,990 INFO L93 Difference]: Finished difference Result 557 states and 956 transitions. [2020-08-22 16:50:04,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 16:50:04,993 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 91 [2020-08-22 16:50:04,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:50:05,008 INFO L225 Difference]: With dead ends: 557 [2020-08-22 16:50:05,008 INFO L226 Difference]: Without dead ends: 286 [2020-08-22 16:50:05,015 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-22 16:50:05,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-08-22 16:50:05,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 280. [2020-08-22 16:50:05,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-08-22 16:50:05,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 402 transitions. [2020-08-22 16:50:05,092 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 402 transitions. Word has length 91 [2020-08-22 16:50:05,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:50:05,093 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 402 transitions. [2020-08-22 16:50:05,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 16:50:05,093 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 402 transitions. [2020-08-22 16:50:05,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-08-22 16:50:05,098 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:50:05,099 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:50:05,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 16:50:05,099 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:50:05,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:50:05,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1768869960, now seen corresponding path program 1 times [2020-08-22 16:50:05,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:50:05,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896614074] [2020-08-22 16:50:05,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:50:05,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:05,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:50:05,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:05,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:50:05,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:05,310 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:50:05,311 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896614074] [2020-08-22 16:50:05,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:50:05,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 16:50:05,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036264031] [2020-08-22 16:50:05,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 16:50:05,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:50:05,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 16:50:05,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 16:50:05,314 INFO L87 Difference]: Start difference. First operand 280 states and 402 transitions. Second operand 8 states. [2020-08-22 16:50:06,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:50:06,704 INFO L93 Difference]: Finished difference Result 713 states and 1049 transitions. [2020-08-22 16:50:06,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 16:50:06,706 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 101 [2020-08-22 16:50:06,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:50:06,711 INFO L225 Difference]: With dead ends: 713 [2020-08-22 16:50:06,711 INFO L226 Difference]: Without dead ends: 439 [2020-08-22 16:50:06,713 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-08-22 16:50:06,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2020-08-22 16:50:06,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 421. [2020-08-22 16:50:06,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-08-22 16:50:06,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 590 transitions. [2020-08-22 16:50:06,753 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 590 transitions. Word has length 101 [2020-08-22 16:50:06,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:50:06,753 INFO L479 AbstractCegarLoop]: Abstraction has 421 states and 590 transitions. [2020-08-22 16:50:06,754 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 16:50:06,754 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 590 transitions. [2020-08-22 16:50:06,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-08-22 16:50:06,759 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:50:06,759 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:50:06,760 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 16:50:06,760 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:50:06,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:50:06,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1027824070, now seen corresponding path program 1 times [2020-08-22 16:50:06,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:50:06,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808353812] [2020-08-22 16:50:06,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:50:06,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:06,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:50:06,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:06,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:50:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:06,973 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:50:06,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808353812] [2020-08-22 16:50:06,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336821702] [2020-08-22 16:50:06,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:50:07,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:07,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 7 conjunts are in the unsatisfiable core [2020-08-22 16:50:07,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:50:07,138 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:50:07,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-08-22 16:50:07,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-08-22 16:50:07,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573333485] [2020-08-22 16:50:07,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 16:50:07,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:50:07,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 16:50:07,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-22 16:50:07,141 INFO L87 Difference]: Start difference. First operand 421 states and 590 transitions. Second operand 3 states. [2020-08-22 16:50:07,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:50:07,751 INFO L93 Difference]: Finished difference Result 1247 states and 1789 transitions. [2020-08-22 16:50:07,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 16:50:07,751 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2020-08-22 16:50:07,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:50:07,757 INFO L225 Difference]: With dead ends: 1247 [2020-08-22 16:50:07,757 INFO L226 Difference]: Without dead ends: 832 [2020-08-22 16:50:07,758 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-22 16:50:07,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2020-08-22 16:50:07,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 832. [2020-08-22 16:50:07,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 832 states. [2020-08-22 16:50:07,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1102 transitions. [2020-08-22 16:50:07,804 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1102 transitions. Word has length 102 [2020-08-22 16:50:07,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:50:07,805 INFO L479 AbstractCegarLoop]: Abstraction has 832 states and 1102 transitions. [2020-08-22 16:50:07,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 16:50:07,805 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1102 transitions. [2020-08-22 16:50:07,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-08-22 16:50:07,811 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:50:07,811 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:50:08,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-08-22 16:50:08,027 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:50:08,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:50:08,028 INFO L82 PathProgramCache]: Analyzing trace with hash -2011229172, now seen corresponding path program 1 times [2020-08-22 16:50:08,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:50:08,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22059588] [2020-08-22 16:50:08,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:50:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:08,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:50:08,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:08,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:50:08,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:08,248 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:50:08,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22059588] [2020-08-22 16:50:08,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096026828] [2020-08-22 16:50:08,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:50:08,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:08,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 7 conjunts are in the unsatisfiable core [2020-08-22 16:50:08,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:50:08,412 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:50:08,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-08-22 16:50:08,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 5 [2020-08-22 16:50:08,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861039395] [2020-08-22 16:50:08,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 16:50:08,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:50:08,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 16:50:08,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 16:50:08,415 INFO L87 Difference]: Start difference. First operand 832 states and 1102 transitions. Second operand 3 states. [2020-08-22 16:50:09,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:50:09,137 INFO L93 Difference]: Finished difference Result 2341 states and 3195 transitions. [2020-08-22 16:50:09,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 16:50:09,138 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-08-22 16:50:09,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:50:09,151 INFO L225 Difference]: With dead ends: 2341 [2020-08-22 16:50:09,151 INFO L226 Difference]: Without dead ends: 1515 [2020-08-22 16:50:09,154 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 16:50:09,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1515 states. [2020-08-22 16:50:09,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1515 to 1241. [2020-08-22 16:50:09,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1241 states. [2020-08-22 16:50:09,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 1668 transitions. [2020-08-22 16:50:09,255 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 1668 transitions. Word has length 103 [2020-08-22 16:50:09,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:50:09,255 INFO L479 AbstractCegarLoop]: Abstraction has 1241 states and 1668 transitions. [2020-08-22 16:50:09,255 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 16:50:09,256 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 1668 transitions. [2020-08-22 16:50:09,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-08-22 16:50:09,261 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:50:09,261 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:50:09,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:50:09,475 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:50:09,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:50:09,476 INFO L82 PathProgramCache]: Analyzing trace with hash 2004252269, now seen corresponding path program 1 times [2020-08-22 16:50:09,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:50:09,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084779028] [2020-08-22 16:50:09,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:50:09,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:09,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:50:09,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:09,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:50:09,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:09,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 16:50:09,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:09,625 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 33 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 16:50:09,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084779028] [2020-08-22 16:50:09,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61044195] [2020-08-22 16:50:09,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:50:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:09,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 4 conjunts are in the unsatisfiable core [2020-08-22 16:50:09,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:50:09,801 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-08-22 16:50:09,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-08-22 16:50:09,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-08-22 16:50:09,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622837184] [2020-08-22 16:50:09,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 16:50:09,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:50:09,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 16:50:09,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-22 16:50:09,804 INFO L87 Difference]: Start difference. First operand 1241 states and 1668 transitions. Second operand 3 states. [2020-08-22 16:50:10,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:50:10,370 INFO L93 Difference]: Finished difference Result 3294 states and 4517 transitions. [2020-08-22 16:50:10,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 16:50:10,371 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2020-08-22 16:50:10,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:50:10,452 INFO L225 Difference]: With dead ends: 3294 [2020-08-22 16:50:10,453 INFO L226 Difference]: Without dead ends: 2059 [2020-08-22 16:50:10,457 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-22 16:50:10,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2059 states. [2020-08-22 16:50:10,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2059 to 2059. [2020-08-22 16:50:10,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2059 states. [2020-08-22 16:50:10,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2059 states to 2059 states and 2640 transitions. [2020-08-22 16:50:10,544 INFO L78 Accepts]: Start accepts. Automaton has 2059 states and 2640 transitions. Word has length 125 [2020-08-22 16:50:10,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:50:10,544 INFO L479 AbstractCegarLoop]: Abstraction has 2059 states and 2640 transitions. [2020-08-22 16:50:10,545 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 16:50:10,545 INFO L276 IsEmpty]: Start isEmpty. Operand 2059 states and 2640 transitions. [2020-08-22 16:50:10,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-08-22 16:50:10,552 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:50:10,552 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:50:10,766 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:50:10,766 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:50:10,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:50:10,768 INFO L82 PathProgramCache]: Analyzing trace with hash 996009503, now seen corresponding path program 1 times [2020-08-22 16:50:10,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:50:10,768 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297973709] [2020-08-22 16:50:10,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:50:10,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:10,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:50:10,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:10,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:50:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:10,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 16:50:10,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:11,026 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 56 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 16:50:11,026 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297973709] [2020-08-22 16:50:11,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352878817] [2020-08-22 16:50:11,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:50:11,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:11,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 4 conjunts are in the unsatisfiable core [2020-08-22 16:50:11,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:50:11,217 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:50:11,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-08-22 16:50:11,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-08-22 16:50:11,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087398485] [2020-08-22 16:50:11,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 16:50:11,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:50:11,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 16:50:11,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-08-22 16:50:11,220 INFO L87 Difference]: Start difference. First operand 2059 states and 2640 transitions. Second operand 10 states. [2020-08-22 16:50:14,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:50:14,266 INFO L93 Difference]: Finished difference Result 4624 states and 6605 transitions. [2020-08-22 16:50:14,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-22 16:50:14,266 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 145 [2020-08-22 16:50:14,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:50:14,285 INFO L225 Difference]: With dead ends: 4624 [2020-08-22 16:50:14,285 INFO L226 Difference]: Without dead ends: 2267 [2020-08-22 16:50:14,294 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=239, Invalid=951, Unknown=0, NotChecked=0, Total=1190 [2020-08-22 16:50:14,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2267 states. [2020-08-22 16:50:14,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2267 to 1555. [2020-08-22 16:50:14,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1555 states. [2020-08-22 16:50:14,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 1772 transitions. [2020-08-22 16:50:14,375 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 1772 transitions. Word has length 145 [2020-08-22 16:50:14,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:50:14,375 INFO L479 AbstractCegarLoop]: Abstraction has 1555 states and 1772 transitions. [2020-08-22 16:50:14,375 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 16:50:14,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 1772 transitions. [2020-08-22 16:50:14,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-08-22 16:50:14,380 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:50:14,380 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:50:14,595 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:50:14,596 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:50:14,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:50:14,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1157453929, now seen corresponding path program 1 times [2020-08-22 16:50:14,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:50:14,598 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316275367] [2020-08-22 16:50:14,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:50:14,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:14,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:50:14,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:14,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:50:14,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:14,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 16:50:14,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:14,905 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-22 16:50:14,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316275367] [2020-08-22 16:50:14,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472912800] [2020-08-22 16:50:14,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:50:15,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:15,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 4 conjunts are in the unsatisfiable core [2020-08-22 16:50:15,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:50:15,077 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-22 16:50:15,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-08-22 16:50:15,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2020-08-22 16:50:15,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071252711] [2020-08-22 16:50:15,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 16:50:15,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:50:15,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 16:50:15,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 16:50:15,083 INFO L87 Difference]: Start difference. First operand 1555 states and 1772 transitions. Second operand 3 states. [2020-08-22 16:50:15,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:50:15,496 INFO L93 Difference]: Finished difference Result 1972 states and 2238 transitions. [2020-08-22 16:50:15,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 16:50:15,497 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2020-08-22 16:50:15,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:50:15,504 INFO L225 Difference]: With dead ends: 1972 [2020-08-22 16:50:15,505 INFO L226 Difference]: Without dead ends: 1970 [2020-08-22 16:50:15,506 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 16:50:15,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1970 states. [2020-08-22 16:50:15,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1970 to 1555. [2020-08-22 16:50:15,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1555 states. [2020-08-22 16:50:15,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 1772 transitions. [2020-08-22 16:50:15,548 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 1772 transitions. Word has length 149 [2020-08-22 16:50:15,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:50:15,549 INFO L479 AbstractCegarLoop]: Abstraction has 1555 states and 1772 transitions. [2020-08-22 16:50:15,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 16:50:15,549 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 1772 transitions. [2020-08-22 16:50:15,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-08-22 16:50:15,554 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:50:15,554 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:50:15,768 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-08-22 16:50:15,768 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:50:15,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:50:15,769 INFO L82 PathProgramCache]: Analyzing trace with hash 152592045, now seen corresponding path program 1 times [2020-08-22 16:50:15,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:50:15,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865196085] [2020-08-22 16:50:15,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:50:15,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:15,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:50:15,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:15,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:50:15,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:15,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 16:50:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:15,969 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 65 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 16:50:15,970 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865196085] [2020-08-22 16:50:15,970 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927675284] [2020-08-22 16:50:15,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:50:16,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:16,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 7 conjunts are in the unsatisfiable core [2020-08-22 16:50:16,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:50:16,166 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 66 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:50:16,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-08-22 16:50:16,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 8 [2020-08-22 16:50:16,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644159110] [2020-08-22 16:50:16,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 16:50:16,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:50:16,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 16:50:16,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-08-22 16:50:16,169 INFO L87 Difference]: Start difference. First operand 1555 states and 1772 transitions. Second operand 8 states. [2020-08-22 16:50:17,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:50:17,210 INFO L93 Difference]: Finished difference Result 4123 states and 4830 transitions. [2020-08-22 16:50:17,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 16:50:17,211 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 157 [2020-08-22 16:50:17,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:50:17,225 INFO L225 Difference]: With dead ends: 4123 [2020-08-22 16:50:17,226 INFO L226 Difference]: Without dead ends: 2574 [2020-08-22 16:50:17,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-22 16:50:17,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2574 states. [2020-08-22 16:50:17,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2574 to 2409. [2020-08-22 16:50:17,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2409 states. [2020-08-22 16:50:17,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2409 states to 2409 states and 2775 transitions. [2020-08-22 16:50:17,296 INFO L78 Accepts]: Start accepts. Automaton has 2409 states and 2775 transitions. Word has length 157 [2020-08-22 16:50:17,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:50:17,296 INFO L479 AbstractCegarLoop]: Abstraction has 2409 states and 2775 transitions. [2020-08-22 16:50:17,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 16:50:17,297 INFO L276 IsEmpty]: Start isEmpty. Operand 2409 states and 2775 transitions. [2020-08-22 16:50:17,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-08-22 16:50:17,304 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:50:17,304 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:50:17,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:50:17,517 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:50:17,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:50:17,519 INFO L82 PathProgramCache]: Analyzing trace with hash 97285180, now seen corresponding path program 1 times [2020-08-22 16:50:17,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:50:17,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335365149] [2020-08-22 16:50:17,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:50:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:17,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:50:17,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:17,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:50:17,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:17,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 16:50:17,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:17,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 16:50:17,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:17,773 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 83 proven. 8 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-08-22 16:50:17,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335365149] [2020-08-22 16:50:17,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070452535] [2020-08-22 16:50:17,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:50:17,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:17,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 4 conjunts are in the unsatisfiable core [2020-08-22 16:50:17,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:50:18,004 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 98 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-08-22 16:50:18,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-08-22 16:50:18,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-08-22 16:50:18,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763311713] [2020-08-22 16:50:18,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 16:50:18,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:50:18,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 16:50:18,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-22 16:50:18,011 INFO L87 Difference]: Start difference. First operand 2409 states and 2775 transitions. Second operand 10 states. [2020-08-22 16:50:19,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:50:19,954 INFO L93 Difference]: Finished difference Result 4713 states and 5431 transitions. [2020-08-22 16:50:19,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-22 16:50:19,955 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-08-22 16:50:19,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:50:19,964 INFO L225 Difference]: With dead ends: 4713 [2020-08-22 16:50:19,964 INFO L226 Difference]: Without dead ends: 2445 [2020-08-22 16:50:19,969 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 189 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=134, Invalid=466, Unknown=0, NotChecked=0, Total=600 [2020-08-22 16:50:19,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2445 states. [2020-08-22 16:50:20,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2445 to 1843. [2020-08-22 16:50:20,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1843 states. [2020-08-22 16:50:20,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1843 states to 1843 states and 2017 transitions. [2020-08-22 16:50:20,020 INFO L78 Accepts]: Start accepts. Automaton has 1843 states and 2017 transitions. Word has length 173 [2020-08-22 16:50:20,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:50:20,020 INFO L479 AbstractCegarLoop]: Abstraction has 1843 states and 2017 transitions. [2020-08-22 16:50:20,020 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 16:50:20,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1843 states and 2017 transitions. [2020-08-22 16:50:20,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-08-22 16:50:20,026 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:50:20,027 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:50:20,241 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:50:20,241 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:50:20,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:50:20,242 INFO L82 PathProgramCache]: Analyzing trace with hash 740758918, now seen corresponding path program 1 times [2020-08-22 16:50:20,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:50:20,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54776911] [2020-08-22 16:50:20,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:50:20,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:20,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:50:20,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:20,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:50:20,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:20,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 16:50:20,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:20,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-08-22 16:50:20,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:20,514 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 110 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-08-22 16:50:20,514 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54776911] [2020-08-22 16:50:20,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652151516] [2020-08-22 16:50:20,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:50:20,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:50:20,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 6 conjunts are in the unsatisfiable core [2020-08-22 16:50:20,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:50:20,705 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 110 proven. 54 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-08-22 16:50:20,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-08-22 16:50:20,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2020-08-22 16:50:20,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806347001] [2020-08-22 16:50:20,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 16:50:20,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:50:20,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 16:50:20,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-08-22 16:50:20,709 INFO L87 Difference]: Start difference. First operand 1843 states and 2017 transitions. Second operand 7 states. [2020-08-22 16:50:21,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:50:21,836 INFO L93 Difference]: Finished difference Result 3978 states and 4446 transitions. [2020-08-22 16:50:21,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 16:50:21,836 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 207 [2020-08-22 16:50:21,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:50:21,837 INFO L225 Difference]: With dead ends: 3978 [2020-08-22 16:50:21,837 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 16:50:21,845 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-08-22 16:50:21,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 16:50:21,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 16:50:21,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 16:50:21,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 16:50:21,846 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 207 [2020-08-22 16:50:21,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:50:21,847 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 16:50:21,847 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 16:50:21,847 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 16:50:21,847 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 16:50:22,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-08-22 16:50:22,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 16:50:22,615 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 158 [2020-08-22 16:50:22,799 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 158 [2020-08-22 16:50:23,839 WARN L193 SmtUtils]: Spent 942.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 80 [2020-08-22 16:50:24,397 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 53 [2020-08-22 16:50:24,932 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 53 [2020-08-22 16:50:24,937 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-22 16:50:24,937 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-08-22 16:50:24,937 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-22 16:50:24,938 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-08-22 16:50:24,938 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-08-22 16:50:24,938 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,939 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,939 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,939 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,939 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,939 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,939 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-08-22 16:50:24,939 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-08-22 16:50:24,939 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-08-22 16:50:24,940 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-08-22 16:50:24,940 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-08-22 16:50:24,940 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-08-22 16:50:24,940 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-08-22 16:50:24,940 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-08-22 16:50:24,940 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-08-22 16:50:24,940 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-08-22 16:50:24,940 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,940 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,940 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,940 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,941 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,941 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,941 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-08-22 16:50:24,941 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-08-22 16:50:24,941 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-08-22 16:50:24,941 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-08-22 16:50:24,941 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-08-22 16:50:24,941 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-08-22 16:50:24,942 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-08-22 16:50:24,942 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-08-22 16:50:24,942 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-08-22 16:50:24,942 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-08-22 16:50:24,942 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-08-22 16:50:24,942 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 431) no Hoare annotation was computed. [2020-08-22 16:50:24,942 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-08-22 16:50:24,942 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-08-22 16:50:24,943 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-08-22 16:50:24,943 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-08-22 16:50:24,943 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,943 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,943 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,943 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,943 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,943 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-08-22 16:50:24,944 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-08-22 16:50:24,944 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-08-22 16:50:24,944 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-08-22 16:50:24,944 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-08-22 16:50:24,944 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-08-22 16:50:24,944 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-08-22 16:50:24,944 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-08-22 16:50:24,944 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-08-22 16:50:24,944 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,945 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,945 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,945 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,945 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,945 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-08-22 16:50:24,945 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-08-22 16:50:24,945 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-08-22 16:50:24,945 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-08-22 16:50:24,946 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-08-22 16:50:24,946 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-08-22 16:50:24,946 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-08-22 16:50:24,946 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-08-22 16:50:24,946 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-08-22 16:50:24,946 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-08-22 16:50:24,946 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-08-22 16:50:24,946 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-08-22 16:50:24,946 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-08-22 16:50:24,947 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,947 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,947 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,947 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,947 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,947 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-08-22 16:50:24,947 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-08-22 16:50:24,947 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-08-22 16:50:24,947 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-08-22 16:50:24,948 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-08-22 16:50:24,948 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-08-22 16:50:24,948 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-08-22 16:50:24,948 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-08-22 16:50:24,948 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-08-22 16:50:24,948 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,948 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,948 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,949 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,949 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,949 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,949 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-08-22 16:50:24,949 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,949 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-08-22 16:50:24,949 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-08-22 16:50:24,949 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-08-22 16:50:24,949 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-08-22 16:50:24,950 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-08-22 16:50:24,950 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-08-22 16:50:24,950 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-08-22 16:50:24,950 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-08-22 16:50:24,950 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-08-22 16:50:24,950 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-08-22 16:50:24,950 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-08-22 16:50:24,950 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-08-22 16:50:24,951 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-08-22 16:50:24,951 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,951 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,951 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,951 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,951 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,951 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-08-22 16:50:24,951 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-08-22 16:50:24,951 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-08-22 16:50:24,952 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-08-22 16:50:24,952 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-08-22 16:50:24,952 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-08-22 16:50:24,952 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-08-22 16:50:24,952 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-08-22 16:50:24,952 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,952 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,952 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,952 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,952 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,953 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-08-22 16:50:24,953 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-08-22 16:50:24,953 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-08-22 16:50:24,953 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-08-22 16:50:24,953 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-08-22 16:50:24,953 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-08-22 16:50:24,953 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-08-22 16:50:24,953 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-08-22 16:50:24,954 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-08-22 16:50:24,954 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-08-22 16:50:24,954 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse17 (= ~a17~0 |old(~a17~0)|)) (.cse6 (= ~a7~0 |old(~a7~0)|)) (.cse7 (= ~a21~0 |old(~a21~0)|)) (.cse8 (= ~a20~0 |old(~a20~0)|)) (.cse9 (= ~a16~0 |old(~a16~0)|)) (.cse10 (= ~a8~0 |old(~a8~0)|))) (let ((.cse11 (= ~a17~0 1)) (.cse12 (not (= |old(~a17~0)| 1))) (.cse0 (not (<= 5 |old(~a16~0)|))) (.cse1 (not (<= 14 |old(~a8~0)|))) (.cse15 (= 5 ~a16~0)) (.cse2 (not (<= |old(~a16~0)| 5))) (.cse3 (and .cse17 .cse6 .cse7 .cse8 .cse9 .cse10)) (.cse4 (not (<= |old(~a17~0)| 0))) (.cse5 (not (= |old(~a21~0)| 1))) (.cse13 (not (<= |old(~a16~0)| 4))) (.cse16 (not (= |old(~a7~0)| 1))) (.cse14 (not (= |old(~a20~0)| 1))) (.cse18 (not (<= 6 |old(~a16~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or (and .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and (or .cse12 .cse1 .cse13 .cse5) (or .cse12 .cse14 .cse13 .cse5))) (or .cse12 .cse0 (and .cse6 .cse7 .cse8 .cse10 .cse15 .cse11) .cse2 .cse16) (or .cse12 .cse0 .cse1 (and .cse6 .cse17 (= ~a21~0 1) .cse8 .cse10 .cse15) .cse2 .cse5) (or .cse14 .cse3 .cse18 .cse5) (or (not (<= 15 |old(~a8~0)|)) .cse3 .cse18 .cse5) (or .cse3 .cse13 .cse4 .cse5) (or (and (or .cse16 .cse13) (or .cse16 .cse14 .cse18)) (and .cse17 .cse7 (= ~a7~0 1) .cse8 .cse9 .cse10))))) [2020-08-22 16:50:24,954 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-08-22 16:50:24,954 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,954 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,955 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,955 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,955 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-08-22 16:50:24,955 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,955 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,955 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-08-22 16:50:24,955 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-08-22 16:50:24,955 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-08-22 16:50:24,955 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-08-22 16:50:24,955 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-08-22 16:50:24,956 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-08-22 16:50:24,956 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-08-22 16:50:24,956 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-08-22 16:50:24,956 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-08-22 16:50:24,956 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-08-22 16:50:24,956 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-08-22 16:50:24,956 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-08-22 16:50:24,956 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,956 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,957 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,957 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,957 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,957 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-08-22 16:50:24,957 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,957 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-08-22 16:50:24,957 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-08-22 16:50:24,957 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-08-22 16:50:24,957 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-08-22 16:50:24,958 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-08-22 16:50:24,958 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-08-22 16:50:24,958 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-08-22 16:50:24,958 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-08-22 16:50:24,958 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-08-22 16:50:24,958 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-08-22 16:50:24,958 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-08-22 16:50:24,958 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-08-22 16:50:24,959 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-08-22 16:50:24,959 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-08-22 16:50:24,959 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,959 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,959 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,959 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,959 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,959 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 16:50:24,960 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-08-22 16:50:24,960 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-08-22 16:50:24,960 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-08-22 16:50:24,960 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-08-22 16:50:24,960 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-08-22 16:50:24,960 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-08-22 16:50:24,960 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-08-22 16:50:24,960 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-08-22 16:50:24,961 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-08-22 16:50:24,961 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-08-22 16:50:24,961 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-22 16:50:24,961 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (= ~a20~0 1) (= 5 ~a16~0) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-08-22 16:50:24,961 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 16:50:24,961 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-22 16:50:24,961 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 |old(~a8~0)|) (= 5 ~a16~0)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1))) [2020-08-22 16:50:24,962 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-08-22 16:50:24,962 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse2 (<= ~a17~0 0)) (.cse1 (<= ~a16~0 4)) (.cse5 (= ~a20~0 1)) (.cse4 (= ~a7~0 1)) (.cse8 (<= ~a16~0 5)) (.cse6 (<= 14 ~a8~0)) (.cse7 (= ~a17~0 1)) (.cse3 (<= 6 ~a16~0)) (.cse0 (= ~a21~0 1))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse5) (and .cse6 .cse0 .cse1 .cse7) (not (= |old(~a20~0)| 1)) (and .cse4 .cse1) (and .cse3 .cse0 .cse5) (not (= |old(~a21~0)| 1)) (and .cse6 .cse0 .cse8 .cse2) (not (= |old(~a17~0)| 1)) (not (<= 15 |old(~a8~0)|)) (and .cse0 .cse1 .cse5 .cse7) (and .cse4 .cse8 .cse7) (not (= 5 |old(~a16~0)|)) (and .cse6 .cse0 (= 5 ~a16~0) .cse7) (and .cse3 .cse0 (<= 15 ~a8~0)))) [2020-08-22 16:50:24,962 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-08-22 16:50:24,962 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-08-22 16:50:24,962 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse2 (<= ~a17~0 0)) (.cse1 (<= ~a16~0 4)) (.cse5 (= ~a20~0 1)) (.cse4 (= ~a7~0 1)) (.cse8 (<= ~a16~0 5)) (.cse6 (<= 14 ~a8~0)) (.cse7 (= ~a17~0 1)) (.cse3 (<= 6 ~a16~0)) (.cse0 (= ~a21~0 1))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse5) (and .cse6 .cse0 .cse1 .cse7) (not (= |old(~a20~0)| 1)) (and .cse4 .cse1) (and .cse3 .cse0 .cse5) (not (= |old(~a21~0)| 1)) (and .cse6 .cse0 .cse8 .cse2) (not (= |old(~a17~0)| 1)) (not (<= 15 |old(~a8~0)|)) (and .cse0 .cse1 .cse5 .cse7) (and .cse4 .cse8 .cse7) (not (= 5 |old(~a16~0)|)) (and .cse6 .cse0 (= 5 ~a16~0) .cse7) (and .cse3 .cse0 (<= 15 ~a8~0)))) [2020-08-22 16:50:24,962 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-08-22 16:50:24,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 04:50:24 BoogieIcfgContainer [2020-08-22 16:50:24,998 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 16:50:24,999 INFO L168 Benchmark]: Toolchain (without parser) took 24061.49 ms. Allocated memory was 140.5 MB in the beginning and 565.7 MB in the end (delta: 425.2 MB). Free memory was 102.3 MB in the beginning and 151.3 MB in the end (delta: -49.0 MB). Peak memory consumption was 396.2 MB. Max. memory is 7.1 GB. [2020-08-22 16:50:25,002 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 16:50:25,003 INFO L168 Benchmark]: CACSL2BoogieTranslator took 719.40 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 102.1 MB in the beginning and 170.7 MB in the end (delta: -68.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 7.1 GB. [2020-08-22 16:50:25,004 INFO L168 Benchmark]: Boogie Preprocessor took 107.28 ms. Allocated memory is still 205.0 MB. Free memory was 170.7 MB in the beginning and 165.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-08-22 16:50:25,004 INFO L168 Benchmark]: RCFGBuilder took 1196.26 ms. Allocated memory was 205.0 MB in the beginning and 238.6 MB in the end (delta: 33.6 MB). Free memory was 165.7 MB in the beginning and 179.5 MB in the end (delta: -13.8 MB). Peak memory consumption was 80.9 MB. Max. memory is 7.1 GB. [2020-08-22 16:50:25,005 INFO L168 Benchmark]: TraceAbstraction took 22033.37 ms. Allocated memory was 238.6 MB in the beginning and 565.7 MB in the end (delta: 327.2 MB). Free memory was 178.1 MB in the beginning and 151.3 MB in the end (delta: 26.8 MB). Peak memory consumption was 374.0 MB. Max. memory is 7.1 GB. [2020-08-22 16:50:25,012 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 719.40 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 102.1 MB in the beginning and 170.7 MB in the end (delta: -68.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.28 ms. Allocated memory is still 205.0 MB. Free memory was 170.7 MB in the beginning and 165.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1196.26 ms. Allocated memory was 205.0 MB in the beginning and 238.6 MB in the end (delta: 33.6 MB). Free memory was 165.7 MB in the beginning and 179.5 MB in the end (delta: -13.8 MB). Peak memory consumption was 80.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22033.37 ms. Allocated memory was 238.6 MB in the beginning and 565.7 MB in the end (delta: 327.2 MB). Free memory was 178.1 MB in the beginning and 151.3 MB in the end (delta: 26.8 MB). Peak memory consumption was 374.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 431]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((((((((a21 == 1 && a16 <= 4) && a17 <= 0) || ((6 <= a16 && a7 == 1) && a20 == 1)) || (((14 <= a8 && a21 == 1) && a16 <= 4) && a17 == 1)) || !(\old(a20) == 1)) || (a7 == 1 && a16 <= 4)) || ((6 <= a16 && a21 == 1) && a20 == 1)) || !(\old(a21) == 1)) || (((14 <= a8 && a21 == 1) && a16 <= 5) && a17 <= 0)) || !(\old(a17) == 1)) || !(15 <= \old(a8))) || (((a21 == 1 && a16 <= 4) && a20 == 1) && a17 == 1)) || ((a7 == 1 && a16 <= 5) && a17 == 1)) || !(5 == \old(a16))) || (((14 <= a8 && a21 == 1) && 5 == a16) && a17 == 1)) || ((6 <= a16 && a21 == 1) && 15 <= a8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.0s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 12.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 527 SDtfs, 3763 SDslu, 404 SDs, 0 SdLazy, 7656 SolverSat, 1344 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1338 GetRequests, 1231 SyntacticMatches, 2 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2409occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 2192 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 109 PreInvPairs, 165 NumberOfFragments, 686 HoareAnnotationTreeSize, 109 FomulaSimplifications, 113898 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 5630 FormulaSimplificationTreeSizeReductionInter, 2.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 2514 NumberOfCodeBlocks, 2514 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 2496 ConstructedInterpolants, 0 QuantifiedInterpolants, 890521 SizeOfPredicates, 8 NumberOfNonLiveVariables, 3452 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 18 InterpolantComputations, 6 PerfectInterpolantSequences, 978/1059 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...