/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/Problem14_label24.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 12:10:59,896 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 12:10:59,899 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 12:10:59,917 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 12:10:59,917 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 12:10:59,919 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 12:10:59,921 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 12:10:59,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 12:10:59,933 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 12:10:59,935 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 12:10:59,936 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 12:10:59,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 12:10:59,939 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 12:10:59,941 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 12:10:59,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 12:10:59,945 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 12:10:59,946 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 12:10:59,947 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 12:10:59,948 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 12:10:59,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 12:10:59,958 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 12:10:59,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 12:10:59,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 12:10:59,963 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 12:10:59,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 12:10:59,974 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 12:10:59,975 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 12:10:59,976 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 12:10:59,976 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 [2020-07-17 12:11:00,012 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 12:11:00,012 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 12:11:00,013 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 12:11:00,013 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 12:11:00,014 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 12:11:00,014 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 12:11:00,014 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 12:11:00,016 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 12:11:00,016 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 12:11:00,017 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 12:11:00,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 12:11:00,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 12:11:00,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 12:11:00,017 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 12:11:00,017 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 12:11:00,018 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 12:11:00,018 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 12:11:00,018 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 12:11:00,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 12:11:00,020 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 12:11:00,020 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 12:11:00,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 12:11:00,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 12:11:00,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 12:11:00,021 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 12:11:00,021 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 12:11:00,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 12:11:00,024 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 12:11:00,024 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 12:11:00,024 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 12:11:00,303 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 12:11:00,315 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 12:11:00,318 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 12:11:00,319 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 12:11:00,319 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 12:11:00,320 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label24.c [2020-07-17 12:11:00,380 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66c62c238/e1eccaf18339460e98456512e35e0364/FLAGdb40cafda [2020-07-17 12:11:00,928 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 12:11:00,929 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label24.c [2020-07-17 12:11:00,951 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66c62c238/e1eccaf18339460e98456512e35e0364/FLAGdb40cafda [2020-07-17 12:11:01,208 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66c62c238/e1eccaf18339460e98456512e35e0364 [2020-07-17 12:11:01,218 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 12:11:01,221 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 12:11:01,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 12:11:01,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 12:11:01,227 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 12:11:01,228 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 12:11:01" (1/1) ... [2020-07-17 12:11:01,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a05f19a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:11:01, skipping insertion in model container [2020-07-17 12:11:01,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 12:11:01" (1/1) ... [2020-07-17 12:11:01,240 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 12:11:01,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 12:11:01,924 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 12:11:01,928 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 12:11:02,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 12:11:02,085 INFO L208 MainTranslator]: Completed translation [2020-07-17 12:11:02,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:11:02 WrapperNode [2020-07-17 12:11:02,086 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 12:11:02,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 12:11:02,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 12:11:02,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 12:11:02,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:11:02" (1/1) ... [2020-07-17 12:11:02,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:11:02" (1/1) ... [2020-07-17 12:11:02,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:11:02" (1/1) ... [2020-07-17 12:11:02,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:11:02" (1/1) ... [2020-07-17 12:11:02,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:11:02" (1/1) ... [2020-07-17 12:11:02,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:11:02" (1/1) ... [2020-07-17 12:11:02,192 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:11:02" (1/1) ... [2020-07-17 12:11:02,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 12:11:02,203 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 12:11:02,203 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 12:11:02,203 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 12:11:02,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:11:02" (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 [2020-07-17 12:11:02,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 12:11:02,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 12:11:02,285 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-17 12:11:02,285 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 12:11:02,285 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-17 12:11:02,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 12:11:02,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 12:11:02,286 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-17 12:11:02,286 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 12:11:02,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 12:11:02,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 12:11:03,673 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 12:11:03,674 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-17 12:11:03,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 12:11:03 BoogieIcfgContainer [2020-07-17 12:11:03,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 12:11:03,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 12:11:03,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 12:11:03,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 12:11:03,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 12:11:01" (1/3) ... [2020-07-17 12:11:03,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77f4d5c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 12:11:03, skipping insertion in model container [2020-07-17 12:11:03,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:11:02" (2/3) ... [2020-07-17 12:11:03,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77f4d5c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 12:11:03, skipping insertion in model container [2020-07-17 12:11:03,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 12:11:03" (3/3) ... [2020-07-17 12:11:03,690 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label24.c [2020-07-17 12:11:03,703 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 12:11:03,711 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 12:11:03,730 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 12:11:03,759 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 12:11:03,759 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 12:11:03,759 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 12:11:03,760 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 12:11:03,760 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 12:11:03,760 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 12:11:03,761 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 12:11:03,761 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 12:11:03,786 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-07-17 12:11:03,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-17 12:11:03,795 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:11:03,796 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] [2020-07-17 12:11:03,797 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:11:03,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:11:03,803 INFO L82 PathProgramCache]: Analyzing trace with hash 2116109586, now seen corresponding path program 1 times [2020-07-17 12:11:03,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:11:03,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557655002] [2020-07-17 12:11:03,814 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:11:03,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:04,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:04,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:11:04,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557655002] [2020-07-17 12:11:04,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:11:04,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 12:11:04,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136950692] [2020-07-17 12:11:04,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 12:11:04,186 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:11:04,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 12:11:04,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-17 12:11:04,209 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 5 states. [2020-07-17 12:11:05,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:11:05,926 INFO L93 Difference]: Finished difference Result 698 states and 1241 transitions. [2020-07-17 12:11:05,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 12:11:05,927 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2020-07-17 12:11:05,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:11:05,945 INFO L225 Difference]: With dead ends: 698 [2020-07-17 12:11:05,945 INFO L226 Difference]: Without dead ends: 380 [2020-07-17 12:11:05,952 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-07-17 12:11:05,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-07-17 12:11:06,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-07-17 12:11:06,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-07-17 12:11:06,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 604 transitions. [2020-07-17 12:11:06,029 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 604 transitions. Word has length 47 [2020-07-17 12:11:06,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:11:06,030 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 604 transitions. [2020-07-17 12:11:06,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 12:11:06,031 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 604 transitions. [2020-07-17 12:11:06,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-07-17 12:11:06,036 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:11:06,036 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-17 12:11:06,037 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 12:11:06,037 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:11:06,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:11:06,037 INFO L82 PathProgramCache]: Analyzing trace with hash 13726601, now seen corresponding path program 1 times [2020-07-17 12:11:06,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:11:06,038 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064980669] [2020-07-17 12:11:06,038 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:11:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:06,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:06,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:06,383 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:11:06,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064980669] [2020-07-17 12:11:06,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:11:06,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 12:11:06,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190394391] [2020-07-17 12:11:06,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-17 12:11:06,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:11:06,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-17 12:11:06,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-17 12:11:06,387 INFO L87 Difference]: Start difference. First operand 374 states and 604 transitions. Second operand 7 states. [2020-07-17 12:11:08,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:11:08,429 INFO L93 Difference]: Finished difference Result 1144 states and 1884 transitions. [2020-07-17 12:11:08,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-17 12:11:08,430 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 116 [2020-07-17 12:11:08,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:11:08,436 INFO L225 Difference]: With dead ends: 1144 [2020-07-17 12:11:08,437 INFO L226 Difference]: Without dead ends: 776 [2020-07-17 12:11:08,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-07-17 12:11:08,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2020-07-17 12:11:08,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 566. [2020-07-17 12:11:08,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2020-07-17 12:11:08,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 839 transitions. [2020-07-17 12:11:08,494 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 839 transitions. Word has length 116 [2020-07-17 12:11:08,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:11:08,494 INFO L479 AbstractCegarLoop]: Abstraction has 566 states and 839 transitions. [2020-07-17 12:11:08,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-17 12:11:08,495 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 839 transitions. [2020-07-17 12:11:08,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-17 12:11:08,498 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:11:08,498 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:11:08,499 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 12:11:08,499 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:11:08,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:11:08,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1028566563, now seen corresponding path program 1 times [2020-07-17 12:11:08,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:11:08,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880899484] [2020-07-17 12:11:08,500 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:11:08,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:08,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:08,920 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:11:08,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880899484] [2020-07-17 12:11:08,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:11:08,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-17 12:11:08,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144693921] [2020-07-17 12:11:08,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 12:11:08,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:11:08,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 12:11:08,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-17 12:11:08,923 INFO L87 Difference]: Start difference. First operand 566 states and 839 transitions. Second operand 8 states. [2020-07-17 12:11:10,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:11:10,877 INFO L93 Difference]: Finished difference Result 1332 states and 1939 transitions. [2020-07-17 12:11:10,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-17 12:11:10,881 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-07-17 12:11:10,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:11:10,888 INFO L225 Difference]: With dead ends: 1332 [2020-07-17 12:11:10,889 INFO L226 Difference]: Without dead ends: 772 [2020-07-17 12:11:10,890 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-07-17 12:11:10,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2020-07-17 12:11:10,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 756. [2020-07-17 12:11:10,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 756 states. [2020-07-17 12:11:10,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 1062 transitions. [2020-07-17 12:11:10,923 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 1062 transitions. Word has length 142 [2020-07-17 12:11:10,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:11:10,924 INFO L479 AbstractCegarLoop]: Abstraction has 756 states and 1062 transitions. [2020-07-17 12:11:10,924 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 12:11:10,924 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 1062 transitions. [2020-07-17 12:11:10,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-07-17 12:11:10,930 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:11:10,931 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-07-17 12:11:10,931 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 12:11:10,931 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:11:10,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:11:10,932 INFO L82 PathProgramCache]: Analyzing trace with hash -518382015, now seen corresponding path program 1 times [2020-07-17 12:11:10,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:11:10,932 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789244604] [2020-07-17 12:11:10,933 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:11:10,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:11,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:11,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:11,277 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 80 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-17 12:11:11,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789244604] [2020-07-17 12:11:11,278 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437615079] [2020-07-17 12:11:11,278 INFO L94 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 [2020-07-17 12:11:11,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:11,375 INFO L264 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-17 12:11:11,399 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:11:11,506 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-07-17 12:11:11,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-17 12:11:11,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 10 [2020-07-17 12:11:11,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842975949] [2020-07-17 12:11:11,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 12:11:11,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:11:11,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 12:11:11,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-07-17 12:11:11,509 INFO L87 Difference]: Start difference. First operand 756 states and 1062 transitions. Second operand 5 states. [2020-07-17 12:11:12,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:11:12,864 INFO L93 Difference]: Finished difference Result 1910 states and 2863 transitions. [2020-07-17 12:11:12,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-17 12:11:12,869 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 212 [2020-07-17 12:11:12,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:11:12,876 INFO L225 Difference]: With dead ends: 1910 [2020-07-17 12:11:12,876 INFO L226 Difference]: Without dead ends: 1160 [2020-07-17 12:11:12,878 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-07-17 12:11:12,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2020-07-17 12:11:12,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1132. [2020-07-17 12:11:12,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1132 states. [2020-07-17 12:11:12,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1132 states to 1132 states and 1572 transitions. [2020-07-17 12:11:12,934 INFO L78 Accepts]: Start accepts. Automaton has 1132 states and 1572 transitions. Word has length 212 [2020-07-17 12:11:12,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:11:12,938 INFO L479 AbstractCegarLoop]: Abstraction has 1132 states and 1572 transitions. [2020-07-17 12:11:12,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 12:11:12,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1132 states and 1572 transitions. [2020-07-17 12:11:12,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-07-17 12:11:12,953 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:11:12,954 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-07-17 12:11:13,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:11:13,167 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:11:13,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:11:13,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1121794437, now seen corresponding path program 1 times [2020-07-17 12:11:13,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:11:13,169 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297424054] [2020-07-17 12:11:13,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:11:13,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:13,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:13,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:13,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:13,420 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 78 proven. 8 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2020-07-17 12:11:13,421 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297424054] [2020-07-17 12:11:13,421 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561812010] [2020-07-17 12:11:13,422 INFO L94 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 [2020-07-17 12:11:13,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:13,534 INFO L264 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-17 12:11:13,540 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:11:13,675 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-07-17 12:11:13,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-17 12:11:13,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 7 [2020-07-17 12:11:13,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114350442] [2020-07-17 12:11:13,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 12:11:13,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:11:13,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 12:11:13,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-17 12:11:13,678 INFO L87 Difference]: Start difference. First operand 1132 states and 1572 transitions. Second operand 3 states. [2020-07-17 12:11:14,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:11:14,546 INFO L93 Difference]: Finished difference Result 1874 states and 2528 transitions. [2020-07-17 12:11:14,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 12:11:14,546 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 226 [2020-07-17 12:11:14,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:11:14,556 INFO L225 Difference]: With dead ends: 1874 [2020-07-17 12:11:14,557 INFO L226 Difference]: Without dead ends: 1872 [2020-07-17 12:11:14,558 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-17 12:11:14,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2020-07-17 12:11:14,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 944. [2020-07-17 12:11:14,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 944 states. [2020-07-17 12:11:14,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1251 transitions. [2020-07-17 12:11:14,593 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1251 transitions. Word has length 226 [2020-07-17 12:11:14,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:11:14,594 INFO L479 AbstractCegarLoop]: Abstraction has 944 states and 1251 transitions. [2020-07-17 12:11:14,594 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 12:11:14,594 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1251 transitions. [2020-07-17 12:11:14,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-07-17 12:11:14,598 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:11:14,598 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-07-17 12:11:14,812 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:11:14,813 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:11:14,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:11:14,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1694076266, now seen corresponding path program 1 times [2020-07-17 12:11:14,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:11:14,814 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161234501] [2020-07-17 12:11:14,814 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:11:14,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:14,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:15,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:15,215 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 81 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-07-17 12:11:15,216 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161234501] [2020-07-17 12:11:15,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204559719] [2020-07-17 12:11:15,218 INFO L94 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 [2020-07-17 12:11:15,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:15,342 INFO L264 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-17 12:11:15,350 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:11:15,463 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-07-17 12:11:15,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-17 12:11:15,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 6 [2020-07-17 12:11:15,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923425431] [2020-07-17 12:11:15,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 12:11:15,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:11:15,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 12:11:15,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-17 12:11:15,476 INFO L87 Difference]: Start difference. First operand 944 states and 1251 transitions. Second operand 3 states. [2020-07-17 12:11:16,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:11:16,405 INFO L93 Difference]: Finished difference Result 2616 states and 3431 transitions. [2020-07-17 12:11:16,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 12:11:16,406 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 229 [2020-07-17 12:11:16,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:11:16,413 INFO L225 Difference]: With dead ends: 2616 [2020-07-17 12:11:16,413 INFO L226 Difference]: Without dead ends: 1494 [2020-07-17 12:11:16,417 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 236 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-17 12:11:16,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1494 states. [2020-07-17 12:11:16,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1494 to 1124. [2020-07-17 12:11:16,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1124 states. [2020-07-17 12:11:16,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1430 transitions. [2020-07-17 12:11:16,454 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1430 transitions. Word has length 229 [2020-07-17 12:11:16,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:11:16,455 INFO L479 AbstractCegarLoop]: Abstraction has 1124 states and 1430 transitions. [2020-07-17 12:11:16,455 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 12:11:16,455 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1430 transitions. [2020-07-17 12:11:16,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2020-07-17 12:11:16,461 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:11:16,461 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-07-17 12:11:16,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:11:16,675 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:11:16,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:11:16,675 INFO L82 PathProgramCache]: Analyzing trace with hash -266552290, now seen corresponding path program 1 times [2020-07-17 12:11:16,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:11:16,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242709017] [2020-07-17 12:11:16,676 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:11:16,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:16,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:16,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:16,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:17,460 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 154 proven. 191 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-17 12:11:17,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242709017] [2020-07-17 12:11:17,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042182251] [2020-07-17 12:11:17,461 INFO L94 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 [2020-07-17 12:11:17,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:17,611 INFO L264 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-17 12:11:17,618 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:11:17,787 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 4, 4, 1] term [2020-07-17 12:11:17,787 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:11:17,789 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:11:17,792 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-17 12:11:18,132 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 309 proven. 2 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-07-17 12:11:18,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 12:11:18,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2020-07-17 12:11:18,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721629057] [2020-07-17 12:11:18,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-17 12:11:18,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:11:18,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-17 12:11:18,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2020-07-17 12:11:18,136 INFO L87 Difference]: Start difference. First operand 1124 states and 1430 transitions. Second operand 15 states. [2020-07-17 12:11:22,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:11:22,639 INFO L93 Difference]: Finished difference Result 2357 states and 2994 transitions. [2020-07-17 12:11:22,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-17 12:11:22,640 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 317 [2020-07-17 12:11:22,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:11:22,646 INFO L225 Difference]: With dead ends: 2357 [2020-07-17 12:11:22,646 INFO L226 Difference]: Without dead ends: 1374 [2020-07-17 12:11:22,651 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=324, Invalid=1158, Unknown=0, NotChecked=0, Total=1482 [2020-07-17 12:11:22,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1374 states. [2020-07-17 12:11:22,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1374 to 1124. [2020-07-17 12:11:22,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1124 states. [2020-07-17 12:11:22,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1302 transitions. [2020-07-17 12:11:22,691 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1302 transitions. Word has length 317 [2020-07-17 12:11:22,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:11:22,691 INFO L479 AbstractCegarLoop]: Abstraction has 1124 states and 1302 transitions. [2020-07-17 12:11:22,691 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-17 12:11:22,692 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1302 transitions. [2020-07-17 12:11:22,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2020-07-17 12:11:22,698 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:11:22,698 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-07-17 12:11:22,913 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:11:22,914 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:11:22,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:11:22,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1074149043, now seen corresponding path program 1 times [2020-07-17 12:11:22,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:11:22,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624041020] [2020-07-17 12:11:22,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:11:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:23,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:23,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:23,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:23,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:23,653 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 267 proven. 2 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2020-07-17 12:11:23,653 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624041020] [2020-07-17 12:11:23,653 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416096579] [2020-07-17 12:11:23,654 INFO L94 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 [2020-07-17 12:11:23,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:23,765 INFO L264 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-17 12:11:23,769 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:11:23,805 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 1] term [2020-07-17 12:11:23,805 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-17 12:11:23,909 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 221 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2020-07-17 12:11:23,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-17 12:11:23,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2020-07-17 12:11:23,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251339794] [2020-07-17 12:11:23,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 12:11:23,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:11:23,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 12:11:23,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-07-17 12:11:23,917 INFO L87 Difference]: Start difference. First operand 1124 states and 1302 transitions. Second operand 5 states. [2020-07-17 12:11:25,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:11:25,114 INFO L93 Difference]: Finished difference Result 3012 states and 3552 transitions. [2020-07-17 12:11:25,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-17 12:11:25,115 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 342 [2020-07-17 12:11:25,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:11:25,141 INFO L225 Difference]: With dead ends: 3012 [2020-07-17 12:11:25,141 INFO L226 Difference]: Without dead ends: 2076 [2020-07-17 12:11:25,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 345 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2020-07-17 12:11:25,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2076 states. [2020-07-17 12:11:25,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2076 to 1878. [2020-07-17 12:11:25,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1878 states. [2020-07-17 12:11:25,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1878 states to 1878 states and 2150 transitions. [2020-07-17 12:11:25,189 INFO L78 Accepts]: Start accepts. Automaton has 1878 states and 2150 transitions. Word has length 342 [2020-07-17 12:11:25,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:11:25,190 INFO L479 AbstractCegarLoop]: Abstraction has 1878 states and 2150 transitions. [2020-07-17 12:11:25,190 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 12:11:25,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1878 states and 2150 transitions. [2020-07-17 12:11:25,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2020-07-17 12:11:25,200 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:11:25,200 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:11:25,414 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:11:25,415 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:11:25,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:11:25,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1203933665, now seen corresponding path program 1 times [2020-07-17 12:11:25,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:11:25,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010900473] [2020-07-17 12:11:25,417 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:11:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:25,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:25,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:25,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:25,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:25,839 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 383 proven. 79 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2020-07-17 12:11:25,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010900473] [2020-07-17 12:11:25,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461267948] [2020-07-17 12:11:25,840 INFO L94 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 [2020-07-17 12:11:25,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:25,992 INFO L264 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-17 12:11:25,998 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:11:26,044 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-17 12:11:26,044 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-17 12:11:26,170 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 561 proven. 2 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2020-07-17 12:11:26,171 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 12:11:26,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 9 [2020-07-17 12:11:26,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266815378] [2020-07-17 12:11:26,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-17 12:11:26,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:11:26,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-17 12:11:26,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-17 12:11:26,173 INFO L87 Difference]: Start difference. First operand 1878 states and 2150 transitions. Second operand 9 states. [2020-07-17 12:11:29,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:11:29,306 INFO L93 Difference]: Finished difference Result 5066 states and 6001 transitions. [2020-07-17 12:11:29,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-07-17 12:11:29,307 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 452 [2020-07-17 12:11:29,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:11:29,322 INFO L225 Difference]: With dead ends: 5066 [2020-07-17 12:11:29,323 INFO L226 Difference]: Without dead ends: 3190 [2020-07-17 12:11:29,328 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 471 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2020-07-17 12:11:29,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3190 states. [2020-07-17 12:11:29,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3190 to 3184. [2020-07-17 12:11:29,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3184 states. [2020-07-17 12:11:29,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3184 states to 3184 states and 3683 transitions. [2020-07-17 12:11:29,407 INFO L78 Accepts]: Start accepts. Automaton has 3184 states and 3683 transitions. Word has length 452 [2020-07-17 12:11:29,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:11:29,408 INFO L479 AbstractCegarLoop]: Abstraction has 3184 states and 3683 transitions. [2020-07-17 12:11:29,408 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-17 12:11:29,409 INFO L276 IsEmpty]: Start isEmpty. Operand 3184 states and 3683 transitions. [2020-07-17 12:11:29,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 537 [2020-07-17 12:11:29,422 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:11:29,422 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:11:29,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:11:29,636 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:11:29,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:11:29,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1066963527, now seen corresponding path program 1 times [2020-07-17 12:11:29,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:11:29,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884902468] [2020-07-17 12:11:29,638 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:11:29,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:29,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:29,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:29,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:29,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:30,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:30,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1076 backedges. 518 proven. 81 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2020-07-17 12:11:30,377 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884902468] [2020-07-17 12:11:30,377 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954801629] [2020-07-17 12:11:30,377 INFO L94 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 [2020-07-17 12:11:30,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:30,552 INFO L264 TraceCheckSpWp]: Trace formula consists of 832 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-17 12:11:30,558 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:11:30,660 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 4, 4, 1] term [2020-07-17 12:11:30,661 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:11:30,662 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:11:30,664 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-17 12:11:31,018 INFO L134 CoverageAnalysis]: Checked inductivity of 1076 backedges. 762 proven. 2 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-07-17 12:11:31,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 12:11:31,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2020-07-17 12:11:31,019 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676799506] [2020-07-17 12:11:31,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-17 12:11:31,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:11:31,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-17 12:11:31,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-07-17 12:11:31,021 INFO L87 Difference]: Start difference. First operand 3184 states and 3683 transitions. Second operand 11 states. [2020-07-17 12:11:34,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:11:34,319 INFO L93 Difference]: Finished difference Result 6670 states and 7914 transitions. [2020-07-17 12:11:34,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-07-17 12:11:34,320 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 536 [2020-07-17 12:11:34,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:11:34,336 INFO L225 Difference]: With dead ends: 6670 [2020-07-17 12:11:34,336 INFO L226 Difference]: Without dead ends: 3782 [2020-07-17 12:11:34,344 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 586 GetRequests, 559 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=189, Invalid=567, Unknown=0, NotChecked=0, Total=756 [2020-07-17 12:11:34,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3782 states. [2020-07-17 12:11:34,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3782 to 3740. [2020-07-17 12:11:34,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3740 states. [2020-07-17 12:11:34,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3740 states to 3740 states and 4136 transitions. [2020-07-17 12:11:34,418 INFO L78 Accepts]: Start accepts. Automaton has 3740 states and 4136 transitions. Word has length 536 [2020-07-17 12:11:34,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:11:34,419 INFO L479 AbstractCegarLoop]: Abstraction has 3740 states and 4136 transitions. [2020-07-17 12:11:34,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-17 12:11:34,419 INFO L276 IsEmpty]: Start isEmpty. Operand 3740 states and 4136 transitions. [2020-07-17 12:11:34,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2020-07-17 12:11:34,427 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:11:34,428 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2020-07-17 12:11:34,641 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-07-17 12:11:34,642 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:11:34,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:11:34,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1935935179, now seen corresponding path program 1 times [2020-07-17 12:11:34,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:11:34,643 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803511214] [2020-07-17 12:11:34,643 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:11:34,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:34,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:34,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:34,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:34,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:34,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:35,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:35,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 546 proven. 81 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2020-07-17 12:11:35,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803511214] [2020-07-17 12:11:35,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258033953] [2020-07-17 12:11:35,547 INFO L94 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 [2020-07-17 12:11:35,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:35,744 INFO L264 TraceCheckSpWp]: Trace formula consists of 908 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-17 12:11:35,752 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:11:35,798 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-17 12:11:35,798 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:11:35,804 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 1] term [2020-07-17 12:11:35,804 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:11:35,826 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:11:36,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 790 proven. 2 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2020-07-17 12:11:36,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 12:11:36,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2020-07-17 12:11:36,042 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045574905] [2020-07-17 12:11:36,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-17 12:11:36,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:11:36,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-17 12:11:36,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-07-17 12:11:36,045 INFO L87 Difference]: Start difference. First operand 3740 states and 4136 transitions. Second operand 11 states. [2020-07-17 12:11:40,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:11:40,600 INFO L93 Difference]: Finished difference Result 8392 states and 9335 transitions. [2020-07-17 12:11:40,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-07-17 12:11:40,607 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 614 [2020-07-17 12:11:40,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:11:40,626 INFO L225 Difference]: With dead ends: 8392 [2020-07-17 12:11:40,626 INFO L226 Difference]: Without dead ends: 4654 [2020-07-17 12:11:40,635 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 672 GetRequests, 640 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=227, Invalid=829, Unknown=0, NotChecked=0, Total=1056 [2020-07-17 12:11:40,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4654 states. [2020-07-17 12:11:40,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4654 to 3738. [2020-07-17 12:11:40,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3738 states. [2020-07-17 12:11:40,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3738 states to 3738 states and 4095 transitions. [2020-07-17 12:11:40,721 INFO L78 Accepts]: Start accepts. Automaton has 3738 states and 4095 transitions. Word has length 614 [2020-07-17 12:11:40,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:11:40,722 INFO L479 AbstractCegarLoop]: Abstraction has 3738 states and 4095 transitions. [2020-07-17 12:11:40,722 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-17 12:11:40,723 INFO L276 IsEmpty]: Start isEmpty. Operand 3738 states and 4095 transitions. [2020-07-17 12:11:40,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2020-07-17 12:11:40,731 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:11:40,732 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2020-07-17 12:11:40,947 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-07-17 12:11:40,947 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:11:40,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:11:40,947 INFO L82 PathProgramCache]: Analyzing trace with hash 629641869, now seen corresponding path program 1 times [2020-07-17 12:11:40,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:11:40,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754151750] [2020-07-17 12:11:40,948 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:11:41,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:41,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:41,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:41,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:41,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:41,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:41,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 549 proven. 73 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2020-07-17 12:11:41,668 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754151750] [2020-07-17 12:11:41,668 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497725395] [2020-07-17 12:11:41,668 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:11:41,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:41,847 INFO L264 TraceCheckSpWp]: Trace formula consists of 933 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-17 12:11:41,857 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:11:42,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 795 proven. 2 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2020-07-17 12:11:42,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 12:11:42,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 8 [2020-07-17 12:11:42,110 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852735662] [2020-07-17 12:11:42,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 12:11:42,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:11:42,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 12:11:42,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-17 12:11:42,112 INFO L87 Difference]: Start difference. First operand 3738 states and 4095 transitions. Second operand 8 states. [2020-07-17 12:11:43,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:11:43,595 INFO L93 Difference]: Finished difference Result 8392 states and 9349 transitions. [2020-07-17 12:11:43,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-17 12:11:43,598 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 636 [2020-07-17 12:11:43,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:11:43,616 INFO L225 Difference]: With dead ends: 8392 [2020-07-17 12:11:43,616 INFO L226 Difference]: Without dead ends: 5026 [2020-07-17 12:11:43,624 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 666 GetRequests, 653 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-07-17 12:11:43,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5026 states. [2020-07-17 12:11:43,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5026 to 4838. [2020-07-17 12:11:43,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4838 states. [2020-07-17 12:11:43,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4838 states to 4838 states and 5311 transitions. [2020-07-17 12:11:43,722 INFO L78 Accepts]: Start accepts. Automaton has 4838 states and 5311 transitions. Word has length 636 [2020-07-17 12:11:43,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:11:43,723 INFO L479 AbstractCegarLoop]: Abstraction has 4838 states and 5311 transitions. [2020-07-17 12:11:43,723 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 12:11:43,723 INFO L276 IsEmpty]: Start isEmpty. Operand 4838 states and 5311 transitions. [2020-07-17 12:11:43,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 724 [2020-07-17 12:11:43,733 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:11:43,733 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:11:43,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:11:43,947 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:11:43,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:11:43,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1287824626, now seen corresponding path program 1 times [2020-07-17 12:11:43,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:11:43,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825602075] [2020-07-17 12:11:43,948 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:11:44,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:44,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:44,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:44,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:44,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:44,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:44,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:44,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:45,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2071 backedges. 949 proven. 493 refuted. 0 times theorem prover too weak. 629 trivial. 0 not checked. [2020-07-17 12:11:45,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825602075] [2020-07-17 12:11:45,067 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [949103511] [2020-07-17 12:11:45,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:11:45,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:45,275 INFO L264 TraceCheckSpWp]: Trace formula consists of 1092 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-17 12:11:45,289 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:11:45,357 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-17 12:11:45,357 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:11:45,359 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 1] term [2020-07-17 12:11:45,360 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:11:45,391 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:11:46,035 INFO L134 CoverageAnalysis]: Checked inductivity of 2071 backedges. 1177 proven. 2 refuted. 0 times theorem prover too weak. 892 trivial. 0 not checked. [2020-07-17 12:11:46,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 12:11:46,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5] total 15 [2020-07-17 12:11:46,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543953596] [2020-07-17 12:11:46,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-17 12:11:46,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:11:46,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-17 12:11:46,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2020-07-17 12:11:46,040 INFO L87 Difference]: Start difference. First operand 4838 states and 5311 transitions. Second operand 15 states. [2020-07-17 12:11:55,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:11:55,592 INFO L93 Difference]: Finished difference Result 10254 states and 11297 transitions. [2020-07-17 12:11:55,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2020-07-17 12:11:55,593 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 723 [2020-07-17 12:11:55,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:11:55,609 INFO L225 Difference]: With dead ends: 10254 [2020-07-17 12:11:55,610 INFO L226 Difference]: Without dead ends: 5036 [2020-07-17 12:11:55,621 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 838 GetRequests, 775 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1280 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=544, Invalid=3616, Unknown=0, NotChecked=0, Total=4160 [2020-07-17 12:11:55,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5036 states. [2020-07-17 12:11:55,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5036 to 3732. [2020-07-17 12:11:55,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3732 states. [2020-07-17 12:11:55,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3732 states to 3732 states and 4013 transitions. [2020-07-17 12:11:55,698 INFO L78 Accepts]: Start accepts. Automaton has 3732 states and 4013 transitions. Word has length 723 [2020-07-17 12:11:55,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:11:55,698 INFO L479 AbstractCegarLoop]: Abstraction has 3732 states and 4013 transitions. [2020-07-17 12:11:55,698 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-17 12:11:55,698 INFO L276 IsEmpty]: Start isEmpty. Operand 3732 states and 4013 transitions. [2020-07-17 12:11:55,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 796 [2020-07-17 12:11:55,708 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:11:55,708 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:11:55,921 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:11:55,922 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:11:55,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:11:55,923 INFO L82 PathProgramCache]: Analyzing trace with hash 1074697562, now seen corresponding path program 1 times [2020-07-17 12:11:55,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:11:55,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139358497] [2020-07-17 12:11:55,924 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:11:56,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:56,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:56,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:56,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:56,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:56,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:56,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:56,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:56,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1769 backedges. 754 proven. 73 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2020-07-17 12:11:56,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139358497] [2020-07-17 12:11:56,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945904170] [2020-07-17 12:11:56,625 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:11:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:56,842 INFO L264 TraceCheckSpWp]: Trace formula consists of 1132 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-17 12:11:56,850 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:11:57,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1769 backedges. 1243 proven. 10 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2020-07-17 12:11:57,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 12:11:57,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2020-07-17 12:11:57,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345395007] [2020-07-17 12:11:57,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-17 12:11:57,273 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:11:57,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-17 12:11:57,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-07-17 12:11:57,277 INFO L87 Difference]: Start difference. First operand 3732 states and 4013 transitions. Second operand 10 states. [2020-07-17 12:11:59,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:11:59,231 INFO L93 Difference]: Finished difference Result 8206 states and 8860 transitions. [2020-07-17 12:11:59,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-17 12:11:59,232 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 795 [2020-07-17 12:11:59,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:11:59,241 INFO L225 Difference]: With dead ends: 8206 [2020-07-17 12:11:59,241 INFO L226 Difference]: Without dead ends: 4480 [2020-07-17 12:11:59,249 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 833 GetRequests, 815 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2020-07-17 12:11:59,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4480 states. [2020-07-17 12:11:59,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4480 to 4102. [2020-07-17 12:11:59,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4102 states. [2020-07-17 12:11:59,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4102 states to 4102 states and 4440 transitions. [2020-07-17 12:11:59,317 INFO L78 Accepts]: Start accepts. Automaton has 4102 states and 4440 transitions. Word has length 795 [2020-07-17 12:11:59,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:11:59,318 INFO L479 AbstractCegarLoop]: Abstraction has 4102 states and 4440 transitions. [2020-07-17 12:11:59,318 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-17 12:11:59,318 INFO L276 IsEmpty]: Start isEmpty. Operand 4102 states and 4440 transitions. [2020-07-17 12:11:59,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 872 [2020-07-17 12:11:59,330 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:11:59,331 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:11:59,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-07-17 12:11:59,578 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:11:59,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:11:59,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1556654866, now seen corresponding path program 1 times [2020-07-17 12:11:59,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:11:59,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32007869] [2020-07-17 12:11:59,580 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:11:59,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:59,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:59,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:59,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:59,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:59,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:59,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:59,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:59,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:00,296 INFO L134 CoverageAnalysis]: Checked inductivity of 2263 backedges. 616 proven. 158 refuted. 0 times theorem prover too weak. 1489 trivial. 0 not checked. [2020-07-17 12:12:00,297 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32007869] [2020-07-17 12:12:00,297 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743396498] [2020-07-17 12:12:00,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:12:00,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:00,527 INFO L264 TraceCheckSpWp]: Trace formula consists of 1248 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-17 12:12:00,533 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:12:00,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2263 backedges. 1450 proven. 2 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2020-07-17 12:12:00,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 12:12:00,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 11 [2020-07-17 12:12:00,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95250590] [2020-07-17 12:12:00,919 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-17 12:12:00,919 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:12:00,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-17 12:12:00,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-07-17 12:12:00,919 INFO L87 Difference]: Start difference. First operand 4102 states and 4440 transitions. Second operand 11 states. [2020-07-17 12:12:03,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:12:03,418 INFO L93 Difference]: Finished difference Result 9124 states and 9898 transitions. [2020-07-17 12:12:03,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-17 12:12:03,419 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 871 [2020-07-17 12:12:03,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:12:03,439 INFO L225 Difference]: With dead ends: 9124 [2020-07-17 12:12:03,439 INFO L226 Difference]: Without dead ends: 5028 [2020-07-17 12:12:03,450 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 921 GetRequests, 897 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=153, Invalid=497, Unknown=0, NotChecked=0, Total=650 [2020-07-17 12:12:03,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5028 states. [2020-07-17 12:12:03,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5028 to 4658. [2020-07-17 12:12:03,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4658 states. [2020-07-17 12:12:03,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4658 states to 4658 states and 5013 transitions. [2020-07-17 12:12:03,530 INFO L78 Accepts]: Start accepts. Automaton has 4658 states and 5013 transitions. Word has length 871 [2020-07-17 12:12:03,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:12:03,531 INFO L479 AbstractCegarLoop]: Abstraction has 4658 states and 5013 transitions. [2020-07-17 12:12:03,531 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-17 12:12:03,531 INFO L276 IsEmpty]: Start isEmpty. Operand 4658 states and 5013 transitions. [2020-07-17 12:12:03,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 971 [2020-07-17 12:12:03,546 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:12:03,547 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 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] [2020-07-17 12:12:03,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-07-17 12:12:03,762 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:12:03,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:12:03,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1319533531, now seen corresponding path program 1 times [2020-07-17 12:12:03,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:12:03,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380471949] [2020-07-17 12:12:03,764 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:12:03,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:04,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:04,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:04,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:04,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:04,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:04,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:04,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:04,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:04,887 INFO L134 CoverageAnalysis]: Checked inductivity of 2876 backedges. 826 proven. 71 refuted. 0 times theorem prover too weak. 1979 trivial. 0 not checked. [2020-07-17 12:12:04,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380471949] [2020-07-17 12:12:04,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90245732] [2020-07-17 12:12:04,888 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:12:05,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:05,141 INFO L264 TraceCheckSpWp]: Trace formula consists of 1382 conjuncts, 21 conjunts are in the unsatisfiable core [2020-07-17 12:12:05,148 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:12:05,166 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-17 12:12:05,168 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-17 12:12:05,459 INFO L501 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-07-17 12:12:06,065 INFO L134 CoverageAnalysis]: Checked inductivity of 2876 backedges. 1513 proven. 10 refuted. 0 times theorem prover too weak. 1353 trivial. 0 not checked. [2020-07-17 12:12:06,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 12:12:06,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 18 [2020-07-17 12:12:06,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561048464] [2020-07-17 12:12:06,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-07-17 12:12:06,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:12:06,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-07-17 12:12:06,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2020-07-17 12:12:06,068 INFO L87 Difference]: Start difference. First operand 4658 states and 5013 transitions. Second operand 18 states. [2020-07-17 12:12:13,834 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2020-07-17 12:12:17,817 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2020-07-17 12:12:24,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:12:24,087 INFO L93 Difference]: Finished difference Result 11698 states and 12538 transitions. [2020-07-17 12:12:24,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2020-07-17 12:12:24,088 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 970 [2020-07-17 12:12:24,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:12:24,107 INFO L225 Difference]: With dead ends: 11698 [2020-07-17 12:12:24,107 INFO L226 Difference]: Without dead ends: 7046 [2020-07-17 12:12:24,118 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1103 GetRequests, 1029 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1898 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=799, Invalid=4901, Unknown=0, NotChecked=0, Total=5700 [2020-07-17 12:12:24,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7046 states. [2020-07-17 12:12:24,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7046 to 5396. [2020-07-17 12:12:24,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5396 states. [2020-07-17 12:12:24,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5396 states to 5396 states and 5747 transitions. [2020-07-17 12:12:24,226 INFO L78 Accepts]: Start accepts. Automaton has 5396 states and 5747 transitions. Word has length 970 [2020-07-17 12:12:24,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:12:24,228 INFO L479 AbstractCegarLoop]: Abstraction has 5396 states and 5747 transitions. [2020-07-17 12:12:24,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-07-17 12:12:24,228 INFO L276 IsEmpty]: Start isEmpty. Operand 5396 states and 5747 transitions. [2020-07-17 12:12:24,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1515 [2020-07-17 12:12:24,308 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:12:24,310 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:12:24,524 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-07-17 12:12:24,525 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:12:24,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:12:24,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1398103861, now seen corresponding path program 1 times [2020-07-17 12:12:24,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:12:24,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833043296] [2020-07-17 12:12:24,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:12:24,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:24,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:24,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:24,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:25,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:25,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:25,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:25,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:25,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:25,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:25,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:25,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:26,698 INFO L134 CoverageAnalysis]: Checked inductivity of 6489 backedges. 2564 proven. 97 refuted. 0 times theorem prover too weak. 3828 trivial. 0 not checked. [2020-07-17 12:12:26,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833043296] [2020-07-17 12:12:26,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401314871] [2020-07-17 12:12:26,699 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:12:27,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:27,039 INFO L264 TraceCheckSpWp]: Trace formula consists of 2039 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-17 12:12:27,059 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:12:27,101 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-17 12:12:27,102 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-17 12:12:27,103 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-17 12:12:27,105 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-07-17 12:12:27,107 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-17 12:12:27,110 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-07-17 12:12:27,121 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-17 12:12:27,122 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-17 12:12:27,124 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-17 12:12:27,128 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-17 12:12:27,129 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-17 12:12:27,130 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-17 12:12:27,131 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-17 12:12:27,133 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-17 12:12:27,135 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-17 12:12:27,138 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-17 12:12:27,138 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-17 12:12:27,139 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-17 12:12:27,141 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-17 12:12:27,143 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-17 12:12:27,145 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-17 12:12:27,146 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-17 12:12:27,147 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-17 12:12:27,148 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-17 12:12:27,149 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-17 12:12:27,151 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-17 12:12:28,077 INFO L134 CoverageAnalysis]: Checked inductivity of 6489 backedges. 470 proven. 0 refuted. 0 times theorem prover too weak. 6019 trivial. 0 not checked. [2020-07-17 12:12:28,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-17 12:12:28,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 8 [2020-07-17 12:12:28,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671314075] [2020-07-17 12:12:28,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 12:12:28,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:12:28,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 12:12:28,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-17 12:12:28,080 INFO L87 Difference]: Start difference. First operand 5396 states and 5747 transitions. Second operand 3 states. [2020-07-17 12:12:28,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:12:28,941 INFO L93 Difference]: Finished difference Result 12622 states and 13544 transitions. [2020-07-17 12:12:28,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 12:12:28,944 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1514 [2020-07-17 12:12:28,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:12:28,960 INFO L225 Difference]: With dead ends: 12622 [2020-07-17 12:12:28,960 INFO L226 Difference]: Without dead ends: 6676 [2020-07-17 12:12:28,970 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1545 GetRequests, 1538 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-17 12:12:28,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6676 states. [2020-07-17 12:12:29,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6676 to 6494. [2020-07-17 12:12:29,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6494 states. [2020-07-17 12:12:29,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6494 states to 6494 states and 6875 transitions. [2020-07-17 12:12:29,074 INFO L78 Accepts]: Start accepts. Automaton has 6494 states and 6875 transitions. Word has length 1514 [2020-07-17 12:12:29,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:12:29,075 INFO L479 AbstractCegarLoop]: Abstraction has 6494 states and 6875 transitions. [2020-07-17 12:12:29,075 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 12:12:29,075 INFO L276 IsEmpty]: Start isEmpty. Operand 6494 states and 6875 transitions. [2020-07-17 12:12:29,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1523 [2020-07-17 12:12:29,105 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:12:29,105 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-07-17 12:12:29,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:12:29,319 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:12:29,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:12:29,321 INFO L82 PathProgramCache]: Analyzing trace with hash -248112715, now seen corresponding path program 1 times [2020-07-17 12:12:29,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:12:29,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788029038] [2020-07-17 12:12:29,322 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:12:29,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:29,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:29,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:29,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:29,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:29,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:29,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:29,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:29,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:29,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:29,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:29,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:29,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:30,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:31,049 INFO L134 CoverageAnalysis]: Checked inductivity of 7107 backedges. 1578 proven. 131 refuted. 0 times theorem prover too weak. 5398 trivial. 0 not checked. [2020-07-17 12:12:31,049 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788029038] [2020-07-17 12:12:31,049 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138178864] [2020-07-17 12:12:31,050 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:12:31,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:31,440 INFO L264 TraceCheckSpWp]: Trace formula consists of 2082 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-17 12:12:31,449 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:12:31,507 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-17 12:12:31,507 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:12:31,508 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:12:31,548 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:12:32,617 INFO L134 CoverageAnalysis]: Checked inductivity of 7107 backedges. 2326 proven. 2 refuted. 0 times theorem prover too weak. 4779 trivial. 0 not checked. [2020-07-17 12:12:32,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 12:12:32,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 11 [2020-07-17 12:12:32,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891708795] [2020-07-17 12:12:32,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-17 12:12:32,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:12:32,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-17 12:12:32,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-07-17 12:12:32,620 INFO L87 Difference]: Start difference. First operand 6494 states and 6875 transitions. Second operand 11 states. [2020-07-17 12:12:35,693 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2020-07-17 12:12:36,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:12:36,643 INFO L93 Difference]: Finished difference Result 13718 states and 14497 transitions. [2020-07-17 12:12:36,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-17 12:12:36,644 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1522 [2020-07-17 12:12:36,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:12:36,670 INFO L225 Difference]: With dead ends: 13718 [2020-07-17 12:12:36,670 INFO L226 Difference]: Without dead ends: 7230 [2020-07-17 12:12:36,681 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1580 GetRequests, 1556 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=134, Invalid=466, Unknown=0, NotChecked=0, Total=600 [2020-07-17 12:12:36,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7230 states. [2020-07-17 12:12:36,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7230 to 6492. [2020-07-17 12:12:36,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6492 states. [2020-07-17 12:12:36,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6492 states to 6492 states and 6842 transitions. [2020-07-17 12:12:36,790 INFO L78 Accepts]: Start accepts. Automaton has 6492 states and 6842 transitions. Word has length 1522 [2020-07-17 12:12:36,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:12:36,791 INFO L479 AbstractCegarLoop]: Abstraction has 6492 states and 6842 transitions. [2020-07-17 12:12:36,791 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-17 12:12:36,791 INFO L276 IsEmpty]: Start isEmpty. Operand 6492 states and 6842 transitions. [2020-07-17 12:12:36,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1651 [2020-07-17 12:12:36,827 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:12:36,830 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-07-17 12:12:37,043 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-07-17 12:12:37,044 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:12:37,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:12:37,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1464304767, now seen corresponding path program 1 times [2020-07-17 12:12:37,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:12:37,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020919776] [2020-07-17 12:12:37,046 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:12:37,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:37,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:37,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:37,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:37,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:37,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:37,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:37,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:38,978 INFO L134 CoverageAnalysis]: Checked inductivity of 8459 backedges. 1341 proven. 343 refuted. 0 times theorem prover too weak. 6775 trivial. 0 not checked. [2020-07-17 12:12:38,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020919776] [2020-07-17 12:12:38,979 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750282992] [2020-07-17 12:12:38,979 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:12:39,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:39,395 INFO L264 TraceCheckSpWp]: Trace formula consists of 2251 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-17 12:12:39,404 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:12:39,500 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:12:39,502 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-17 12:12:47,162 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:12:48,255 INFO L134 CoverageAnalysis]: Checked inductivity of 8459 backedges. 2514 proven. 88 refuted. 0 times theorem prover too weak. 5857 trivial. 0 not checked. [2020-07-17 12:12:48,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 12:12:48,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 17 [2020-07-17 12:12:48,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101294633] [2020-07-17 12:12:48,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-17 12:12:48,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:12:48,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-17 12:12:48,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=222, Unknown=2, NotChecked=0, Total=272 [2020-07-17 12:12:48,258 INFO L87 Difference]: Start difference. First operand 6492 states and 6842 transitions. Second operand 17 states. [2020-07-17 12:13:14,185 WARN L193 SmtUtils]: Spent 8.04 s on a formula simplification. DAG size of input: 28 DAG size of output: 19 [2020-07-17 12:13:40,992 WARN L193 SmtUtils]: Spent 5.86 s on a formula simplification. DAG size of input: 32 DAG size of output: 22 [2020-07-17 12:14:18,868 WARN L193 SmtUtils]: Spent 6.04 s on a formula simplification. DAG size of input: 30 DAG size of output: 20 [2020-07-17 12:14:45,834 WARN L193 SmtUtils]: Spent 8.05 s on a formula simplification. DAG size of input: 35 DAG size of output: 26 [2020-07-17 12:15:27,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:15:27,187 INFO L93 Difference]: Finished difference Result 16140 states and 17173 transitions. [2020-07-17 12:15:27,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2020-07-17 12:15:27,188 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 1650 [2020-07-17 12:15:27,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:15:27,190 INFO L225 Difference]: With dead ends: 16140 [2020-07-17 12:15:27,190 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 12:15:27,212 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1808 GetRequests, 1729 SyntacticMatches, 3 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1933 ImplicationChecksByTransitivity, 66.1s TimeCoverageRelationStatistics Valid=1125, Invalid=4865, Unknown=16, NotChecked=0, Total=6006 [2020-07-17 12:15:27,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 12:15:27,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 12:15:27,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 12:15:27,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 12:15:27,213 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1650 [2020-07-17 12:15:27,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:15:27,213 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 12:15:27,213 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-17 12:15:27,214 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 12:15:27,214 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 12:15:27,427 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:15:27,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 12:15:29,481 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 369 DAG size of output: 333 [2020-07-17 12:15:29,863 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 369 DAG size of output: 333 [2020-07-17 12:15:30,020 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 31 [2020-07-17 12:15:36,313 WARN L193 SmtUtils]: Spent 6.26 s on a formula simplification. DAG size of input: 542 DAG size of output: 98 [2020-07-17 12:15:39,966 WARN L193 SmtUtils]: Spent 3.60 s on a formula simplification. DAG size of input: 341 DAG size of output: 86 [2020-07-17 12:15:43,494 WARN L193 SmtUtils]: Spent 3.53 s on a formula simplification. DAG size of input: 341 DAG size of output: 86 [2020-07-17 12:15:43,498 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-17 12:15:43,499 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~inputA~0 |old(~inputA~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~a24~0 |old(~a24~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a15~0 |old(~a15~0)|)) [2020-07-17 12:15:43,499 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-17 12:15:43,499 INFO L268 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2020-07-17 12:15:43,500 INFO L268 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2020-07-17 12:15:43,500 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,500 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,500 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,500 INFO L268 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2020-07-17 12:15:43,501 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-17 12:15:43,501 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-17 12:15:43,501 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-17 12:15:43,501 INFO L268 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2020-07-17 12:15:43,501 INFO L268 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2020-07-17 12:15:43,501 INFO L268 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2020-07-17 12:15:43,501 INFO L268 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2020-07-17 12:15:43,501 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,501 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,501 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,502 INFO L268 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2020-07-17 12:15:43,502 INFO L268 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2020-07-17 12:15:43,502 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-17 12:15:43,502 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-17 12:15:43,502 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-17 12:15:43,502 INFO L268 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2020-07-17 12:15:43,502 INFO L268 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2020-07-17 12:15:43,502 INFO L268 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2020-07-17 12:15:43,502 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,502 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,502 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,502 INFO L268 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2020-07-17 12:15:43,502 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-17 12:15:43,503 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-17 12:15:43,503 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-17 12:15:43,503 INFO L268 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2020-07-17 12:15:43,503 INFO L268 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2020-07-17 12:15:43,503 INFO L268 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2020-07-17 12:15:43,503 INFO L268 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2020-07-17 12:15:43,503 INFO L268 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2020-07-17 12:15:43,503 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,504 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,504 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,504 INFO L268 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2020-07-17 12:15:43,504 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-17 12:15:43,504 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-17 12:15:43,504 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-17 12:15:43,504 INFO L268 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2020-07-17 12:15:43,504 INFO L268 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2020-07-17 12:15:43,504 INFO L268 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2020-07-17 12:15:43,505 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,505 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,505 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,505 INFO L268 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2020-07-17 12:15:43,505 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-17 12:15:43,505 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-17 12:15:43,505 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-17 12:15:43,505 INFO L268 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2020-07-17 12:15:43,505 INFO L268 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2020-07-17 12:15:43,505 INFO L268 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2020-07-17 12:15:43,506 INFO L268 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2020-07-17 12:15:43,506 INFO L268 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2020-07-17 12:15:43,506 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,506 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,506 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,506 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,506 INFO L268 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2020-07-17 12:15:43,506 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-17 12:15:43,506 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-17 12:15:43,507 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-17 12:15:43,507 INFO L268 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2020-07-17 12:15:43,507 INFO L268 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2020-07-17 12:15:43,507 INFO L268 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2020-07-17 12:15:43,507 INFO L268 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2020-07-17 12:15:43,507 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,507 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,507 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,507 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-17 12:15:43,507 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-17 12:15:43,508 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-17 12:15:43,508 INFO L268 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2020-07-17 12:15:43,508 INFO L268 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2020-07-17 12:15:43,508 INFO L268 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2020-07-17 12:15:43,508 INFO L268 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2020-07-17 12:15:43,508 INFO L268 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2020-07-17 12:15:43,508 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,508 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,508 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,509 INFO L268 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2020-07-17 12:15:43,509 INFO L268 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2020-07-17 12:15:43,509 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-17 12:15:43,509 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-17 12:15:43,509 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-17 12:15:43,509 INFO L268 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2020-07-17 12:15:43,510 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse10 (= 1 ~a24~0)) (.cse6 (not (<= 7 |old(~a15~0)|))) (.cse2 (not (<= |old(~a15~0)| 8))) (.cse9 (= ~a12~0 |old(~a12~0)|)) (.cse14 (= ~a24~0 |old(~a24~0)|)) (.cse15 (= ~a21~0 |old(~a21~0)|)) (.cse11 (= ~a15~0 |old(~a15~0)|))) (let ((.cse1 (not (<= (+ |old(~a12~0)| 49) 0))) (.cse4 (and .cse9 .cse14 .cse15 .cse11)) (.cse8 (and (or (not (<= 7 |old(~a21~0)|)) .cse2) (or .cse6 .cse2))) (.cse7 (= 6 |old(~a21~0)|)) (.cse12 (not (<= |old(~a12~0)| 11))) (.cse3 (and .cse9 .cse10 .cse15 .cse11)) (.cse0 (not (= 1 |old(~a24~0)|))) (.cse13 (and .cse9 (<= ~a15~0 5) .cse14 .cse15 .cse11)) (.cse5 (not (<= |old(~a15~0)| 5)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse1 .cse5) (or .cse0 (not (<= 19 |old(~a12~0)|)) .cse6 .cse3) (or .cse0 .cse7 .cse8 .cse3) (or .cse0 (and .cse9 .cse10 .cse11 (= 8 ~a21~0)) (not (<= |old(~a21~0)| 8)) (not (<= 8 |old(~a21~0)|)) (not (= 9 |old(~a15~0)|))) (or .cse0 (forall ((v_~a12~0_448 Int)) (or (not (<= |old(~a12~0)| (div (+ v_~a12~0_448 366333) 5))) (not (<= v_~a12~0_448 80)) (not (< 11 v_~a12~0_448)) (not (= (mod (+ v_~a12~0_448 3) 5) 0)))) (not (<= 13 |old(~a12~0)|)) .cse2 .cse3) (or .cse0 .cse4 .cse8 .cse12) (or .cse7 (= 10 |old(~a21~0)|) .cse13 .cse5) (or .cse0 (not (<= 10 |old(~a21~0)|)) .cse12 .cse3) (or .cse0 .cse13 .cse5)))) [2020-07-17 12:15:43,510 INFO L268 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2020-07-17 12:15:43,510 INFO L268 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2020-07-17 12:15:43,510 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,510 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,510 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,510 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-17 12:15:43,510 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-17 12:15:43,511 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-17 12:15:43,511 INFO L268 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2020-07-17 12:15:43,511 INFO L268 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2020-07-17 12:15:43,511 INFO L268 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2020-07-17 12:15:43,511 INFO L268 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2020-07-17 12:15:43,511 INFO L268 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2020-07-17 12:15:43,511 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,511 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,512 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,512 INFO L268 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2020-07-17 12:15:43,512 INFO L268 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2020-07-17 12:15:43,512 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-17 12:15:43,512 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-17 12:15:43,512 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-17 12:15:43,512 INFO L268 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2020-07-17 12:15:43,512 INFO L268 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2020-07-17 12:15:43,512 INFO L268 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2020-07-17 12:15:43,513 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,513 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,513 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,513 INFO L268 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2020-07-17 12:15:43,513 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-17 12:15:43,513 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-17 12:15:43,513 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-17 12:15:43,513 INFO L268 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2020-07-17 12:15:43,513 INFO L268 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2020-07-17 12:15:43,513 INFO L268 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2020-07-17 12:15:43,513 INFO L268 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2020-07-17 12:15:43,513 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,513 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,513 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,514 INFO L268 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2020-07-17 12:15:43,514 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-17 12:15:43,514 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-17 12:15:43,514 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-17 12:15:43,514 INFO L268 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2020-07-17 12:15:43,514 INFO L268 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2020-07-17 12:15:43,514 INFO L268 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2020-07-17 12:15:43,514 INFO L268 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2020-07-17 12:15:43,514 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,514 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,514 INFO L268 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2020-07-17 12:15:43,514 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-17 12:15:43,514 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-17 12:15:43,514 INFO L268 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2020-07-17 12:15:43,514 INFO L268 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2020-07-17 12:15:43,514 INFO L268 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2020-07-17 12:15:43,515 INFO L268 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2020-07-17 12:15:43,515 INFO L268 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2020-07-17 12:15:43,515 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 127) no Hoare annotation was computed. [2020-07-17 12:15:43,515 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,515 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,515 INFO L268 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2020-07-17 12:15:43,515 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-17 12:15:43,515 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-17 12:15:43,515 INFO L268 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2020-07-17 12:15:43,515 INFO L268 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2020-07-17 12:15:43,515 INFO L268 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2020-07-17 12:15:43,515 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,515 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,515 INFO L268 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2020-07-17 12:15:43,515 INFO L268 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2020-07-17 12:15:43,516 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-17 12:15:43,516 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-17 12:15:43,516 INFO L268 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2020-07-17 12:15:43,516 INFO L268 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2020-07-17 12:15:43,516 INFO L268 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2020-07-17 12:15:43,516 INFO L268 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2020-07-17 12:15:43,516 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,516 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,516 INFO L268 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2020-07-17 12:15:43,516 INFO L268 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2020-07-17 12:15:43,516 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-17 12:15:43,516 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-17 12:15:43,516 INFO L268 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2020-07-17 12:15:43,516 INFO L268 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2020-07-17 12:15:43,516 INFO L268 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2020-07-17 12:15:43,516 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,517 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,517 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,517 INFO L268 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2020-07-17 12:15:43,517 INFO L268 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2020-07-17 12:15:43,517 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-17 12:15:43,517 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-17 12:15:43,517 INFO L268 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2020-07-17 12:15:43,517 INFO L268 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2020-07-17 12:15:43,517 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,517 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,517 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-17 12:15:43,517 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,517 INFO L268 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2020-07-17 12:15:43,517 INFO L268 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2020-07-17 12:15:43,517 INFO L268 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2020-07-17 12:15:43,517 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-17 12:15:43,517 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-17 12:15:43,518 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-17 12:15:43,518 INFO L268 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2020-07-17 12:15:43,518 INFO L268 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2020-07-17 12:15:43,518 INFO L268 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2020-07-17 12:15:43,518 INFO L268 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2020-07-17 12:15:43,518 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,518 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,518 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,518 INFO L268 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2020-07-17 12:15:43,518 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-17 12:15:43,518 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-17 12:15:43,518 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-17 12:15:43,518 INFO L268 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2020-07-17 12:15:43,518 INFO L268 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2020-07-17 12:15:43,518 INFO L268 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2020-07-17 12:15:43,518 INFO L268 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2020-07-17 12:15:43,519 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,519 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,519 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,519 INFO L268 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2020-07-17 12:15:43,519 INFO L268 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2020-07-17 12:15:43,519 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-17 12:15:43,519 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-17 12:15:43,519 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-17 12:15:43,519 INFO L268 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2020-07-17 12:15:43,519 INFO L268 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2020-07-17 12:15:43,519 INFO L268 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2020-07-17 12:15:43,519 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,519 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,519 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,519 INFO L268 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2020-07-17 12:15:43,519 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-17 12:15:43,520 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-17 12:15:43,520 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-17 12:15:43,520 INFO L268 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2020-07-17 12:15:43,520 INFO L268 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2020-07-17 12:15:43,520 INFO L268 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2020-07-17 12:15:43,520 INFO L268 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2020-07-17 12:15:43,520 INFO L268 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2020-07-17 12:15:43,520 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,520 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,520 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:15:43,520 INFO L268 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2020-07-17 12:15:43,520 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-17 12:15:43,520 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-17 12:15:43,520 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-17 12:15:43,520 INFO L268 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2020-07-17 12:15:43,520 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-17 12:15:43,521 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= (+ ~a12~0 49) 0) (= 8 ~a15~0) (= 1 ~a24~0) (<= 7 ~a21~0) (<= ~a21~0 7)) [2020-07-17 12:15:43,521 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-17 12:15:43,521 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-17 12:15:43,521 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= 1 |old(~a24~0)|)) (not (<= (+ |old(~a12~0)| 49) 0)) (not (= 8 |old(~a15~0)|)) (not (<= 7 |old(~a21~0)|)) (not (<= |old(~a21~0)| 7)) (and (= ~a12~0 |old(~a12~0)|) (<= ~a21~0 |old(~a21~0)|) (= 1 ~a24~0) (<= 7 ~a21~0) (= ~a15~0 |old(~a15~0)|))) [2020-07-17 12:15:43,521 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2020-07-17 12:15:43,521 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (let ((.cse3 (not (= 1 |old(~a24~0)|))) (.cse8 (<= 7 ~a15~0)) (.cse1 (<= ~a15~0 8))) (let ((.cse4 (<= ~a12~0 11)) (.cse7 (or (and .cse8 .cse1) (and .cse1 (<= 7 ~a21~0)))) (.cse2 (= 1 ~a24~0)) (.cse0 (<= (+ ~a12~0 49) 0)) (.cse5 (<= ~a15~0 5)) (.cse6 (or .cse3 (<= 0 (+ |old(~a12~0)| 42)) (not (= 6 |old(~a21~0)|)) (not (= 5 |old(~a15~0)|)))) (.cse9 (not (= 6 ~a21~0)))) (or (and .cse0 .cse1 .cse2) .cse3 (and .cse4 .cse2 (<= 10 ~a21~0)) (not (= 8 |old(~a15~0)|)) (not (<= 7 |old(~a21~0)|)) (and .cse5 .cse6 .cse2) (and .cse7 .cse4 .cse2) (not (<= |old(~a21~0)| 7)) (and .cse8 .cse2 (<= 19 ~a12~0)) (and (= 9 ~a15~0) .cse2 (= 8 ~a21~0)) (and .cse7 .cse2 .cse9) (not (<= (+ |old(~a12~0)| 49) 0)) (and (exists ((v_~a12~0_448 Int)) (and (<= ~a12~0 (div (+ v_~a12~0_448 366333) 5)) (<= v_~a12~0_448 80) (< 11 v_~a12~0_448) (= (mod (+ v_~a12~0_448 3) 5) 0))) .cse1 .cse2 (<= 13 ~a12~0)) (and .cse0 .cse5 .cse6) (and .cse5 (not (= 10 ~a21~0)) .cse6 .cse9)))) [2020-07-17 12:15:43,522 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-07-17 12:15:43,522 INFO L268 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2020-07-17 12:15:43,522 INFO L264 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse3 (not (= 1 |old(~a24~0)|))) (.cse8 (<= 7 ~a15~0)) (.cse1 (<= ~a15~0 8))) (let ((.cse4 (<= ~a12~0 11)) (.cse7 (or (and .cse8 .cse1) (and .cse1 (<= 7 ~a21~0)))) (.cse2 (= 1 ~a24~0)) (.cse0 (<= (+ ~a12~0 49) 0)) (.cse5 (<= ~a15~0 5)) (.cse6 (or .cse3 (<= 0 (+ |old(~a12~0)| 42)) (not (= 6 |old(~a21~0)|)) (not (= 5 |old(~a15~0)|)))) (.cse9 (not (= 6 ~a21~0)))) (or (and .cse0 .cse1 .cse2) .cse3 (and .cse4 .cse2 (<= 10 ~a21~0)) (not (= 8 |old(~a15~0)|)) (not (<= 7 |old(~a21~0)|)) (and .cse5 .cse6 .cse2) (and .cse7 .cse4 .cse2) (not (<= |old(~a21~0)| 7)) (and .cse8 .cse2 (<= 19 ~a12~0)) (and (= 9 ~a15~0) .cse2 (= 8 ~a21~0)) (and .cse7 .cse2 .cse9) (not (<= (+ |old(~a12~0)| 49) 0)) (and (exists ((v_~a12~0_448 Int)) (and (<= ~a12~0 (div (+ v_~a12~0_448 366333) 5)) (<= v_~a12~0_448 80) (< 11 v_~a12~0_448) (= (mod (+ v_~a12~0_448 3) 5) 0))) .cse1 .cse2 (<= 13 ~a12~0)) (and .cse0 .cse5 .cse6) (and .cse5 (not (= 10 ~a21~0)) .cse6 .cse9)))) [2020-07-17 12:15:43,522 INFO L268 CegarLoopResult]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2020-07-17 12:15:43,534 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] [2020-07-17 12:15:43,535 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] [2020-07-17 12:15:43,535 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] [2020-07-17 12:15:43,535 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] [2020-07-17 12:15:43,545 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] [2020-07-17 12:15:43,545 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] [2020-07-17 12:15:43,545 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] [2020-07-17 12:15:43,546 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] [2020-07-17 12:15:43,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 12:15:43 BoogieIcfgContainer [2020-07-17 12:15:43,550 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 12:15:43,552 INFO L168 Benchmark]: Toolchain (without parser) took 282332.19 ms. Allocated memory was 146.3 MB in the beginning and 2.6 GB in the end (delta: 2.5 GB). Free memory was 101.9 MB in the beginning and 1.9 GB in the end (delta: -1.8 GB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2020-07-17 12:15:43,552 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-17 12:15:43,553 INFO L168 Benchmark]: CACSL2BoogieTranslator took 863.84 ms. Allocated memory was 146.3 MB in the beginning and 207.1 MB in the end (delta: 60.8 MB). Free memory was 101.5 MB in the beginning and 169.3 MB in the end (delta: -67.8 MB). Peak memory consumption was 36.1 MB. Max. memory is 7.1 GB. [2020-07-17 12:15:43,553 INFO L168 Benchmark]: Boogie Preprocessor took 115.84 ms. Allocated memory is still 207.1 MB. Free memory was 169.3 MB in the beginning and 163.8 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 7.1 GB. [2020-07-17 12:15:43,554 INFO L168 Benchmark]: RCFGBuilder took 1477.82 ms. Allocated memory was 207.1 MB in the beginning and 239.1 MB in the end (delta: 32.0 MB). Free memory was 163.8 MB in the beginning and 156.3 MB in the end (delta: 7.5 MB). Peak memory consumption was 77.3 MB. Max. memory is 7.1 GB. [2020-07-17 12:15:43,555 INFO L168 Benchmark]: TraceAbstraction took 279868.28 ms. Allocated memory was 239.1 MB in the beginning and 2.6 GB in the end (delta: 2.4 GB). Free memory was 154.8 MB in the beginning and 1.9 GB in the end (delta: -1.7 GB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2020-07-17 12:15:43,558 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 863.84 ms. Allocated memory was 146.3 MB in the beginning and 207.1 MB in the end (delta: 60.8 MB). Free memory was 101.5 MB in the beginning and 169.3 MB in the end (delta: -67.8 MB). Peak memory consumption was 36.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.84 ms. Allocated memory is still 207.1 MB. Free memory was 169.3 MB in the beginning and 163.8 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1477.82 ms. Allocated memory was 207.1 MB in the beginning and 239.1 MB in the end (delta: 32.0 MB). Free memory was 163.8 MB in the beginning and 156.3 MB in the end (delta: 7.5 MB). Peak memory consumption was 77.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 279868.28 ms. Allocated memory was 239.1 MB in the beginning and 2.6 GB in the end (delta: 2.4 GB). Free memory was 154.8 MB in the beginning and 1.9 GB in the end (delta: -1.7 GB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 127]: 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: 880]: Loop Invariant [2020-07-17 12:15:43,565 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] [2020-07-17 12:15:43,565 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] [2020-07-17 12:15:43,565 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] [2020-07-17 12:15:43,565 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] [2020-07-17 12:15:43,567 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] [2020-07-17 12:15:43,567 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] [2020-07-17 12:15:43,567 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] [2020-07-17 12:15:43,567 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] Derived loop invariant: (((((((((((((((a12 + 49 <= 0 && a15 <= 8) && 1 == a24) || !(1 == \old(a24))) || ((a12 <= 11 && 1 == a24) && 10 <= a21)) || !(8 == \old(a15))) || !(7 <= \old(a21))) || ((a15 <= 5 && (((!(1 == \old(a24)) || 0 <= \old(a12) + 42) || !(6 == \old(a21))) || !(5 == \old(a15)))) && 1 == a24)) || ((((7 <= a15 && a15 <= 8) || (a15 <= 8 && 7 <= a21)) && a12 <= 11) && 1 == a24)) || !(\old(a21) <= 7)) || ((7 <= a15 && 1 == a24) && 19 <= a12)) || ((9 == a15 && 1 == a24) && 8 == a21)) || ((((7 <= a15 && a15 <= 8) || (a15 <= 8 && 7 <= a21)) && 1 == a24) && !(6 == a21))) || !(\old(a12) + 49 <= 0)) || ((((\exists v_~a12~0_448 : int :: ((a12 <= (v_~a12~0_448 + 366333) / 5 && v_~a12~0_448 <= 80) && 11 < v_~a12~0_448) && (v_~a12~0_448 + 3) % 5 == 0) && a15 <= 8) && 1 == a24) && 13 <= a12)) || ((a12 + 49 <= 0 && a15 <= 5) && (((!(1 == \old(a24)) || 0 <= \old(a12) + 42) || !(6 == \old(a21))) || !(5 == \old(a15))))) || (((a15 <= 5 && !(10 == a21)) && (((!(1 == \old(a24)) || 0 <= \old(a12) + 42) || !(6 == \old(a21))) || !(5 == \old(a15)))) && !(6 == a21)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 263.6s, OverallIterations: 19, TraceHistogramMax: 14, AutomataDifference: 223.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 16.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1174 SDtfs, 36145 SDslu, 1659 SDs, 0 SdLazy, 41852 SolverSat, 4811 SolverUnsat, 46 SolverUnknown, 0 SolverNotchecked, 135.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12510 GetRequests, 12035 SyntacticMatches, 10 SemanticMatches, 465 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6272 ImplicationChecksByTransitivity, 78.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6494occurred in iteration=17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 19 MinimizatonAttempts, 7780 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 358 PreInvPairs, 512 NumberOfFragments, 857 HoareAnnotationTreeSize, 358 FomulaSimplifications, 2425088 FormulaSimplificationTreeSizeReduction, 2.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 161803 FormulaSimplificationTreeSizeReductionInter, 13.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 3.8s SatisfiabilityAnalysisTime, 22.9s InterpolantComputationTime, 23523 NumberOfCodeBlocks, 23523 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 23488 ConstructedInterpolants, 12 QuantifiedInterpolants, 40683491 SizeOfPredicates, 15 NumberOfNonLiveVariables, 16919 ConjunctsInSsa, 127 ConjunctsInUnsatCore, 35 InterpolantComputations, 8 PerfectInterpolantSequences, 70670/72742 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...