/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/Problem02_label27.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 12:06:44,949 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 12:06:44,951 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 12:06:44,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 12:06:44,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 12:06:44,965 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 12:06:44,966 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 12:06:44,968 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 12:06:44,970 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 12:06:44,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 12:06:44,972 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 12:06:44,973 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 12:06:44,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 12:06:44,974 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 12:06:44,975 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 12:06:44,977 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 12:06:44,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 12:06:44,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 12:06:44,980 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 12:06:44,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 12:06:44,984 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 12:06:44,985 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 12:06:44,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 12:06:44,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 12:06:44,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 12:06:44,998 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 12:06:44,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 12:06:44,999 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 12:06:45,000 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 12:06:45,014 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 12:06:45,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 12:06:45,016 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 12:06:45,016 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 12:06:45,016 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 12:06:45,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 12:06:45,017 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 12:06:45,017 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 12:06:45,017 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 12:06:45,017 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 12:06:45,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 12:06:45,018 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 12:06:45,018 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 12:06:45,018 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 12:06:45,018 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 12:06:45,019 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 12:06:45,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 12:06:45,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 12:06:45,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 12:06:45,020 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 12:06:45,020 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 12:06:45,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 12:06:45,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 12:06:45,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 12:06:45,021 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 12:06:45,021 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 12:06:45,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 12:06:45,021 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 12:06:45,022 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 12:06:45,022 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 12:06:45,359 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 12:06:45,380 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 12:06:45,383 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 12:06:45,384 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 12:06:45,385 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 12:06:45,385 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label27.c [2020-07-17 12:06:45,447 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5370edc11/8ebd9f74ab0c40a99ad8e23050473012/FLAG638bdf1fb [2020-07-17 12:06:46,056 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 12:06:46,057 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label27.c [2020-07-17 12:06:46,072 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5370edc11/8ebd9f74ab0c40a99ad8e23050473012/FLAG638bdf1fb [2020-07-17 12:06:46,302 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5370edc11/8ebd9f74ab0c40a99ad8e23050473012 [2020-07-17 12:06:46,311 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 12:06:46,314 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 12:06:46,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 12:06:46,316 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 12:06:46,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 12:06:46,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 12:06:46" (1/1) ... [2020-07-17 12:06:46,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@329fda7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:06:46, skipping insertion in model container [2020-07-17 12:06:46,324 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 12:06:46" (1/1) ... [2020-07-17 12:06:46,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 12:06:46,378 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 12:06:46,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 12:06:46,900 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 12:06:47,065 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 12:06:47,088 INFO L208 MainTranslator]: Completed translation [2020-07-17 12:06:47,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:06:47 WrapperNode [2020-07-17 12:06:47,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 12:06:47,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 12:06:47,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 12:06:47,089 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 12:06:47,099 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:06:47" (1/1) ... [2020-07-17 12:06:47,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:06:47" (1/1) ... [2020-07-17 12:06:47,118 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:06:47" (1/1) ... [2020-07-17 12:06:47,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:06:47" (1/1) ... [2020-07-17 12:06:47,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:06:47" (1/1) ... [2020-07-17 12:06:47,191 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:06:47" (1/1) ... [2020-07-17 12:06:47,203 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:06:47" (1/1) ... [2020-07-17 12:06:47,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 12:06:47,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 12:06:47,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 12:06:47,213 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 12:06:47,215 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:06:47" (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 12:06:47,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 12:06:47,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 12:06:47,271 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-17 12:06:47,271 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 12:06:47,271 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-17 12:06:47,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 12:06:47,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 12:06:47,271 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-17 12:06:47,272 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 12:06:47,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 12:06:47,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 12:06:48,454 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 12:06:48,455 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-17 12:06:48,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 12:06:48 BoogieIcfgContainer [2020-07-17 12:06:48,465 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 12:06:48,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 12:06:48,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 12:06:48,473 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 12:06:48,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 12:06:46" (1/3) ... [2020-07-17 12:06:48,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14e5f4de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 12:06:48, skipping insertion in model container [2020-07-17 12:06:48,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:06:47" (2/3) ... [2020-07-17 12:06:48,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14e5f4de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 12:06:48, skipping insertion in model container [2020-07-17 12:06:48,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 12:06:48" (3/3) ... [2020-07-17 12:06:48,480 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label27.c [2020-07-17 12:06:48,492 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 12:06:48,506 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 12:06:48,523 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 12:06:48,561 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 12:06:48,561 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 12:06:48,562 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 12:06:48,562 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 12:06:48,562 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 12:06:48,562 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 12:06:48,563 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 12:06:48,563 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 12:06:48,588 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-17 12:06:48,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-07-17 12:06:48,601 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:06:48,602 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:06:48,603 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:06:48,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:06:48,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1156369505, now seen corresponding path program 1 times [2020-07-17 12:06:48,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:06:48,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531053275] [2020-07-17 12:06:48,621 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:06:48,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:06:49,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:06:49,220 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 12:06:49,221 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531053275] [2020-07-17 12:06:49,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:06:49,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 12:06:49,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029115341] [2020-07-17 12:06:49,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 12:06:49,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:06:49,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 12:06:49,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-17 12:06:49,253 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 5 states. [2020-07-17 12:06:50,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:06:50,945 INFO L93 Difference]: Finished difference Result 627 states and 1073 transitions. [2020-07-17 12:06:50,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 12:06:50,949 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 101 [2020-07-17 12:06:50,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:06:50,984 INFO L225 Difference]: With dead ends: 627 [2020-07-17 12:06:50,985 INFO L226 Difference]: Without dead ends: 327 [2020-07-17 12:06:50,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-07-17 12:06:51,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-07-17 12:06:51,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 319. [2020-07-17 12:06:51,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-07-17 12:06:51,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 480 transitions. [2020-07-17 12:06:51,123 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 480 transitions. Word has length 101 [2020-07-17 12:06:51,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:06:51,124 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 480 transitions. [2020-07-17 12:06:51,124 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 12:06:51,125 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 480 transitions. [2020-07-17 12:06:51,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-07-17 12:06:51,132 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:06:51,132 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:06:51,132 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 12:06:51,133 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:06:51,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:06:51,133 INFO L82 PathProgramCache]: Analyzing trace with hash -78726948, now seen corresponding path program 1 times [2020-07-17 12:06:51,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:06:51,134 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646348237] [2020-07-17 12:06:51,134 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:06:51,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:06:51,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:06:51,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:06:51,355 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:06:51,356 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646348237] [2020-07-17 12:06:51,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:06:51,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-17 12:06:51,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759694710] [2020-07-17 12:06:51,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 12:06:51,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:06:51,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 12:06:51,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-17 12:06:51,360 INFO L87 Difference]: Start difference. First operand 319 states and 480 transitions. Second operand 8 states. [2020-07-17 12:06:53,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:06:53,461 INFO L93 Difference]: Finished difference Result 1102 states and 1690 transitions. [2020-07-17 12:06:53,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-17 12:06:53,462 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 116 [2020-07-17 12:06:53,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:06:53,470 INFO L225 Difference]: With dead ends: 1102 [2020-07-17 12:06:53,470 INFO L226 Difference]: Without dead ends: 789 [2020-07-17 12:06:53,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-07-17 12:06:53,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2020-07-17 12:06:53,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 772. [2020-07-17 12:06:53,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 772 states. [2020-07-17 12:06:53,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 1127 transitions. [2020-07-17 12:06:53,544 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 1127 transitions. Word has length 116 [2020-07-17 12:06:53,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:06:53,544 INFO L479 AbstractCegarLoop]: Abstraction has 772 states and 1127 transitions. [2020-07-17 12:06:53,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 12:06:53,545 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 1127 transitions. [2020-07-17 12:06:53,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-07-17 12:06:53,554 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:06:53,555 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:06:53,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 12:06:53,555 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:06:53,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:06:53,556 INFO L82 PathProgramCache]: Analyzing trace with hash 1261606519, now seen corresponding path program 1 times [2020-07-17 12:06:53,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:06:53,556 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750416202] [2020-07-17 12:06:53,556 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:06:53,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:06:53,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:06:53,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:06:53,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:06:53,743 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-17 12:06:53,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750416202] [2020-07-17 12:06:53,744 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091176792] [2020-07-17 12:06:53,744 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 12:06:53,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:06:53,885 INFO L264 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-17 12:06:53,895 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:06:53,984 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:06:53,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 12:06:53,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 11 [2020-07-17 12:06:53,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193317339] [2020-07-17 12:06:53,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-17 12:06:53,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:06:53,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-17 12:06:53,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-07-17 12:06:53,997 INFO L87 Difference]: Start difference. First operand 772 states and 1127 transitions. Second operand 11 states. [2020-07-17 12:06:55,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:06:55,483 INFO L93 Difference]: Finished difference Result 1395 states and 2061 transitions. [2020-07-17 12:06:55,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-17 12:06:55,483 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 124 [2020-07-17 12:06:55,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:06:55,488 INFO L225 Difference]: With dead ends: 1395 [2020-07-17 12:06:55,489 INFO L226 Difference]: Without dead ends: 629 [2020-07-17 12:06:55,492 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2020-07-17 12:06:55,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2020-07-17 12:06:55,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 611. [2020-07-17 12:06:55,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-07-17 12:06:55,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 865 transitions. [2020-07-17 12:06:55,535 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 865 transitions. Word has length 124 [2020-07-17 12:06:55,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:06:55,538 INFO L479 AbstractCegarLoop]: Abstraction has 611 states and 865 transitions. [2020-07-17 12:06:55,538 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-17 12:06:55,538 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 865 transitions. [2020-07-17 12:06:55,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-07-17 12:06:55,551 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:06:55,552 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:06:55,764 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-17 12:06:55,765 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:06:55,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:06:55,765 INFO L82 PathProgramCache]: Analyzing trace with hash -187133879, now seen corresponding path program 1 times [2020-07-17 12:06:55,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:06:55,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104072290] [2020-07-17 12:06:55,766 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:06:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:06:55,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:06:55,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:06:55,916 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:06:55,917 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104072290] [2020-07-17 12:06:55,917 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:06:55,917 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-17 12:06:55,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241616283] [2020-07-17 12:06:55,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 12:06:55,918 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:06:55,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 12:06:55,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-17 12:06:55,919 INFO L87 Difference]: Start difference. First operand 611 states and 865 transitions. Second operand 8 states. [2020-07-17 12:06:57,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:06:57,939 INFO L93 Difference]: Finished difference Result 2304 states and 3399 transitions. [2020-07-17 12:06:57,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-17 12:06:57,940 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 123 [2020-07-17 12:06:57,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:06:57,953 INFO L225 Difference]: With dead ends: 2304 [2020-07-17 12:06:57,953 INFO L226 Difference]: Without dead ends: 1699 [2020-07-17 12:06:57,956 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-07-17 12:06:57,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2020-07-17 12:06:58,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1219. [2020-07-17 12:06:58,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1219 states. [2020-07-17 12:06:58,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1219 states to 1219 states and 1679 transitions. [2020-07-17 12:06:58,026 INFO L78 Accepts]: Start accepts. Automaton has 1219 states and 1679 transitions. Word has length 123 [2020-07-17 12:06:58,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:06:58,027 INFO L479 AbstractCegarLoop]: Abstraction has 1219 states and 1679 transitions. [2020-07-17 12:06:58,027 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 12:06:58,027 INFO L276 IsEmpty]: Start isEmpty. Operand 1219 states and 1679 transitions. [2020-07-17 12:06:58,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-07-17 12:06:58,033 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:06:58,033 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:06:58,033 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 12:06:58,034 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:06:58,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:06:58,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1130413871, now seen corresponding path program 1 times [2020-07-17 12:06:58,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:06:58,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783075934] [2020-07-17 12:06:58,035 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:06:58,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:06:58,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:06:58,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:06:58,452 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:06:58,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783075934] [2020-07-17 12:06:58,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511685800] [2020-07-17 12:06:58,453 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 12:06:58,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:06:58,580 INFO L264 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-17 12:06:58,602 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:06:58,657 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:06:58,658 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-17 12:06:58,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2020-07-17 12:06:58,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997022617] [2020-07-17 12:06:58,659 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 12:06:58,660 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:06:58,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 12:06:58,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-17 12:06:58,661 INFO L87 Difference]: Start difference. First operand 1219 states and 1679 transitions. Second operand 3 states. [2020-07-17 12:06:59,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:06:59,243 INFO L93 Difference]: Finished difference Result 3450 states and 4874 transitions. [2020-07-17 12:06:59,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 12:06:59,245 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2020-07-17 12:06:59,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:06:59,258 INFO L225 Difference]: With dead ends: 3450 [2020-07-17 12:06:59,259 INFO L226 Difference]: Without dead ends: 2237 [2020-07-17 12:06:59,263 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-17 12:06:59,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2237 states. [2020-07-17 12:06:59,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2237 to 1949. [2020-07-17 12:06:59,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1949 states. [2020-07-17 12:06:59,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1949 states to 1949 states and 2483 transitions. [2020-07-17 12:06:59,341 INFO L78 Accepts]: Start accepts. Automaton has 1949 states and 2483 transitions. Word has length 127 [2020-07-17 12:06:59,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:06:59,342 INFO L479 AbstractCegarLoop]: Abstraction has 1949 states and 2483 transitions. [2020-07-17 12:06:59,343 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 12:06:59,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1949 states and 2483 transitions. [2020-07-17 12:06:59,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-07-17 12:06:59,349 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:06:59,349 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:06:59,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:06:59,565 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:06:59,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:06:59,566 INFO L82 PathProgramCache]: Analyzing trace with hash 2033205960, now seen corresponding path program 1 times [2020-07-17 12:06:59,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:06:59,567 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083500924] [2020-07-17 12:06:59,567 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:06:59,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:06:59,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:06:59,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:06:59,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:06:59,783 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-17 12:06:59,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083500924] [2020-07-17 12:06:59,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003103436] [2020-07-17 12:06:59,784 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 12:06:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:06:59,900 INFO L264 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-17 12:06:59,904 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:06:59,968 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:06:59,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 12:06:59,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 10 [2020-07-17 12:06:59,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454485435] [2020-07-17 12:06:59,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-17 12:06:59,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:06:59,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-17 12:06:59,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-07-17 12:06:59,971 INFO L87 Difference]: Start difference. First operand 1949 states and 2483 transitions. Second operand 10 states. [2020-07-17 12:07:03,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:07:03,185 INFO L93 Difference]: Finished difference Result 7046 states and 10011 transitions. [2020-07-17 12:07:03,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-17 12:07:03,186 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 140 [2020-07-17 12:07:03,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:07:03,221 INFO L225 Difference]: With dead ends: 7046 [2020-07-17 12:07:03,222 INFO L226 Difference]: Without dead ends: 5103 [2020-07-17 12:07:03,233 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2020-07-17 12:07:03,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5103 states. [2020-07-17 12:07:03,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5103 to 4635. [2020-07-17 12:07:03,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4635 states. [2020-07-17 12:07:03,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4635 states to 4635 states and 6138 transitions. [2020-07-17 12:07:03,430 INFO L78 Accepts]: Start accepts. Automaton has 4635 states and 6138 transitions. Word has length 140 [2020-07-17 12:07:03,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:07:03,431 INFO L479 AbstractCegarLoop]: Abstraction has 4635 states and 6138 transitions. [2020-07-17 12:07:03,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-17 12:07:03,431 INFO L276 IsEmpty]: Start isEmpty. Operand 4635 states and 6138 transitions. [2020-07-17 12:07:03,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-07-17 12:07:03,449 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:07:03,449 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:07:03,662 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:07:03,663 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:07:03,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:07:03,663 INFO L82 PathProgramCache]: Analyzing trace with hash 832046000, now seen corresponding path program 1 times [2020-07-17 12:07:03,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:07:03,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138620785] [2020-07-17 12:07:03,664 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:07:03,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:07:03,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:07:03,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:07:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:07:03,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:07:03,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:07:03,864 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 75 proven. 22 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-07-17 12:07:03,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138620785] [2020-07-17 12:07:03,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805383252] [2020-07-17 12:07:03,865 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 12:07:03,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:07:03,968 INFO L264 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-17 12:07:03,971 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:07:04,024 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 81 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-07-17 12:07:04,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 12:07:04,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 10 [2020-07-17 12:07:04,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872125252] [2020-07-17 12:07:04,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-17 12:07:04,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:07:04,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-17 12:07:04,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-07-17 12:07:04,028 INFO L87 Difference]: Start difference. First operand 4635 states and 6138 transitions. Second operand 10 states. [2020-07-17 12:07:06,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:07:06,573 INFO L93 Difference]: Finished difference Result 8779 states and 11787 transitions. [2020-07-17 12:07:06,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-07-17 12:07:06,573 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-07-17 12:07:06,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:07:06,606 INFO L225 Difference]: With dead ends: 8779 [2020-07-17 12:07:06,606 INFO L226 Difference]: Without dead ends: 5592 [2020-07-17 12:07:06,616 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2020-07-17 12:07:06,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5592 states. [2020-07-17 12:07:06,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5592 to 5531. [2020-07-17 12:07:06,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5531 states. [2020-07-17 12:07:06,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5531 states to 5531 states and 7093 transitions. [2020-07-17 12:07:06,797 INFO L78 Accepts]: Start accepts. Automaton has 5531 states and 7093 transitions. Word has length 172 [2020-07-17 12:07:06,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:07:06,798 INFO L479 AbstractCegarLoop]: Abstraction has 5531 states and 7093 transitions. [2020-07-17 12:07:06,798 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-17 12:07:06,798 INFO L276 IsEmpty]: Start isEmpty. Operand 5531 states and 7093 transitions. [2020-07-17 12:07:06,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-07-17 12:07:06,822 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:07:06,822 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:07:07,037 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:07:07,038 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:07:07,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:07:07,039 INFO L82 PathProgramCache]: Analyzing trace with hash -706269902, now seen corresponding path program 1 times [2020-07-17 12:07:07,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:07:07,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010918918] [2020-07-17 12:07:07,039 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:07:07,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:07:07,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:07:07,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:07:07,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:07:07,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:07:07,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:07:07,249 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 78 proven. 23 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-07-17 12:07:07,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010918918] [2020-07-17 12:07:07,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569333501] [2020-07-17 12:07:07,250 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 12:07:07,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:07:07,430 INFO L264 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-17 12:07:07,433 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:07:07,486 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-07-17 12:07:07,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-17 12:07:07,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-07-17 12:07:07,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886280703] [2020-07-17 12:07:07,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 12:07:07,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:07:07,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 12:07:07,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-17 12:07:07,488 INFO L87 Difference]: Start difference. First operand 5531 states and 7093 transitions. Second operand 3 states. [2020-07-17 12:07:08,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:07:08,024 INFO L93 Difference]: Finished difference Result 9610 states and 12262 transitions. [2020-07-17 12:07:08,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 12:07:08,024 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2020-07-17 12:07:08,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:07:08,026 INFO L225 Difference]: With dead ends: 9610 [2020-07-17 12:07:08,026 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 12:07:08,045 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-17 12:07:08,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 12:07:08,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 12:07:08,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 12:07:08,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 12:07:08,046 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 174 [2020-07-17 12:07:08,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:07:08,046 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 12:07:08,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 12:07:08,046 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 12:07:08,046 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 12:07:08,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:07:08,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 12:07:08,766 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 134 [2020-07-17 12:07:08,922 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 134 [2020-07-17 12:07:09,440 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 36 [2020-07-17 12:07:09,716 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 26 [2020-07-17 12:07:09,947 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 26 [2020-07-17 12:07:09,951 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-17 12:07:09,952 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a11~0 |old(~a11~0)|) (= ~z~0 |old(~z~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~v~0 |old(~v~0)|) (= ~a17~0 |old(~a17~0)|) (= ~y~0 |old(~y~0)|) (= ~f~0 |old(~f~0)|) (= ~a~0 |old(~a~0)|) (= ~x~0 |old(~x~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|) (= ~d~0 |old(~d~0)|)) [2020-07-17 12:07:09,952 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-17 12:07:09,952 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,952 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,953 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,954 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,954 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,954 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-17 12:07:09,954 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-17 12:07:09,954 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-17 12:07:09,954 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-17 12:07:09,954 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-17 12:07:09,954 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-17 12:07:09,954 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-17 12:07:09,955 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-17 12:07:09,955 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-17 12:07:09,955 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-17 12:07:09,955 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-17 12:07:09,955 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-17 12:07:09,955 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-17 12:07:09,955 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,955 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,955 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,956 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,956 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-17 12:07:09,956 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,956 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-17 12:07:09,956 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-17 12:07:09,956 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-17 12:07:09,956 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-17 12:07:09,956 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-17 12:07:09,957 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-17 12:07:09,958 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-17 12:07:09,958 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-17 12:07:09,958 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-17 12:07:09,958 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-17 12:07:09,958 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-17 12:07:09,958 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-17 12:07:09,959 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-17 12:07:09,959 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-17 12:07:09,959 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-17 12:07:09,959 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,961 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,961 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,962 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,962 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,962 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 457) no Hoare annotation was computed. [2020-07-17 12:07:09,962 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-17 12:07:09,962 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-17 12:07:09,962 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-17 12:07:09,962 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-17 12:07:09,963 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-17 12:07:09,963 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-17 12:07:09,963 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-17 12:07:09,963 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-17 12:07:09,963 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-17 12:07:09,963 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-17 12:07:09,963 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-17 12:07:09,963 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,963 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,964 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,964 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,964 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,964 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-17 12:07:09,964 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-17 12:07:09,964 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-17 12:07:09,964 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-17 12:07:09,964 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-17 12:07:09,964 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-17 12:07:09,965 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-17 12:07:09,965 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-17 12:07:09,965 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-17 12:07:09,965 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-17 12:07:09,965 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-17 12:07:09,966 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-17 12:07:09,967 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-17 12:07:09,967 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,967 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,968 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,968 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,968 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,968 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-17 12:07:09,968 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-17 12:07:09,968 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-17 12:07:09,968 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-17 12:07:09,968 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-17 12:07:09,969 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-17 12:07:09,969 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-17 12:07:09,969 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-17 12:07:09,969 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-17 12:07:09,969 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-17 12:07:09,969 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-17 12:07:09,969 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-17 12:07:09,969 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-17 12:07:09,969 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-17 12:07:09,969 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-17 12:07:09,970 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-17 12:07:09,970 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,970 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,970 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,970 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,970 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-17 12:07:09,970 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,970 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-17 12:07:09,970 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,971 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-17 12:07:09,972 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-17 12:07:09,972 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-17 12:07:09,972 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,972 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,973 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-17 12:07:09,973 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-17 12:07:09,973 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-17 12:07:09,973 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-17 12:07:09,973 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-17 12:07:09,973 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-17 12:07:09,973 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-17 12:07:09,973 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-17 12:07:09,973 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-17 12:07:09,974 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-17 12:07:09,974 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-17 12:07:09,974 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,974 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,974 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,974 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,974 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,977 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,977 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-17 12:07:09,977 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-17 12:07:09,977 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-17 12:07:09,977 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-17 12:07:09,977 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-17 12:07:09,978 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-17 12:07:09,978 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-17 12:07:09,978 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-17 12:07:09,978 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-17 12:07:09,978 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-17 12:07:09,978 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-17 12:07:09,978 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,978 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,978 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,979 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,979 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,979 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,979 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-17 12:07:09,979 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-17 12:07:09,979 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-17 12:07:09,979 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-17 12:07:09,979 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-17 12:07:09,979 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-17 12:07:09,979 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-17 12:07:09,980 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-17 12:07:09,980 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-17 12:07:09,980 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-17 12:07:09,980 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-17 12:07:09,980 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-17 12:07:09,980 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-17 12:07:09,980 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-17 12:07:09,980 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,980 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,981 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,981 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse2 (= ~a11~0 |old(~a11~0)|)) (.cse3 (= ~a19~0 |old(~a19~0)|)) (.cse4 (= ~a28~0 |old(~a28~0)|)) (.cse5 (= ~a25~0 |old(~a25~0)|))) (let ((.cse0 (and .cse2 (= ~a17~0 |old(~a17~0)|) .cse3 .cse4 .cse5)) (.cse1 (not (<= |old(~a17~0)| 8)))) (and (or (not (<= |old(~a28~0)| 9)) .cse0 .cse1) (or (not (<= |old(~a25~0)| 0)) .cse0 .cse1) (or (not (= 8 |old(~a17~0)|)) (and .cse2 .cse3 .cse4 (= 8 ~a17~0) .cse5))))) [2020-07-17 12:07:09,981 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,981 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,981 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,981 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-17 12:07:09,983 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-17 12:07:09,983 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-17 12:07:09,983 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-17 12:07:09,983 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-17 12:07:09,983 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-17 12:07:09,983 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-17 12:07:09,983 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-17 12:07:09,983 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-17 12:07:09,983 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-17 12:07:09,984 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-17 12:07:09,984 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-17 12:07:09,984 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-17 12:07:09,984 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,984 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,984 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,984 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,984 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,984 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,984 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-17 12:07:09,985 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-17 12:07:09,985 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-17 12:07:09,985 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-17 12:07:09,985 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-17 12:07:09,985 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-17 12:07:09,985 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-17 12:07:09,985 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-17 12:07:09,985 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-17 12:07:09,985 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-17 12:07:09,985 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-17 12:07:09,986 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-17 12:07:09,986 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-17 12:07:09,986 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-17 12:07:09,986 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-17 12:07:09,986 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-17 12:07:09,986 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,986 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,986 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,986 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,987 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-17 12:07:09,987 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-17 12:07:09,987 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-17 12:07:09,987 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-17 12:07:09,987 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-17 12:07:09,987 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-17 12:07:09,987 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-17 12:07:09,987 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-17 12:07:09,987 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-17 12:07:09,988 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-17 12:07:09,988 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-17 12:07:09,988 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-17 12:07:09,988 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-17 12:07:09,988 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-17 12:07:09,988 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-17 12:07:09,988 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-17 12:07:09,988 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-17 12:07:09,988 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-17 12:07:09,989 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-17 12:07:09,989 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-17 12:07:09,989 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-17 12:07:09,989 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a11~0 0) (<= ~a25~0 0) (= 8 ~a17~0) (<= ~a28~0 7)) [2020-07-17 12:07:09,989 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-17 12:07:09,989 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-17 12:07:09,989 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 8 |old(~a17~0)|)) (not (<= |old(~a28~0)| 7)) (and (= ~a11~0 |old(~a11~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a25~0)| 0)) (not (<= |old(~a11~0)| 0))) [2020-07-17 12:07:09,991 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (not (= 8 |old(~a17~0)|)) (and .cse0 (<= ~a28~0 9)) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a25~0)| 0)) (and .cse0 (<= ~a25~0 0)) (= 8 ~a17~0) (not (<= |old(~a11~0)| 0)))) [2020-07-17 12:07:09,991 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-17 12:07:09,991 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-17 12:07:09,991 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (not (= 8 |old(~a17~0)|)) (and .cse0 (<= ~a28~0 9)) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a25~0)| 0)) (and .cse0 (<= ~a25~0 0)) (= 8 ~a17~0) (not (<= |old(~a11~0)| 0)))) [2020-07-17 12:07:09,991 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-17 12:07:09,991 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-17 12:07:10,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 12:07:10 BoogieIcfgContainer [2020-07-17 12:07:10,024 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 12:07:10,027 INFO L168 Benchmark]: Toolchain (without parser) took 23713.38 ms. Allocated memory was 137.9 MB in the beginning and 540.5 MB in the end (delta: 402.7 MB). Free memory was 101.1 MB in the beginning and 358.7 MB in the end (delta: -257.5 MB). Peak memory consumption was 429.3 MB. Max. memory is 7.1 GB. [2020-07-17 12:07:10,027 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-17 12:07:10,033 INFO L168 Benchmark]: CACSL2BoogieTranslator took 773.04 ms. Allocated memory was 137.9 MB in the beginning and 205.5 MB in the end (delta: 67.6 MB). Free memory was 100.7 MB in the beginning and 172.2 MB in the end (delta: -71.6 MB). Peak memory consumption was 33.8 MB. Max. memory is 7.1 GB. [2020-07-17 12:07:10,035 INFO L168 Benchmark]: Boogie Preprocessor took 124.07 ms. Allocated memory is still 205.5 MB. Free memory was 172.2 MB in the beginning and 167.2 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-07-17 12:07:10,036 INFO L168 Benchmark]: RCFGBuilder took 1252.83 ms. Allocated memory was 205.5 MB in the beginning and 237.0 MB in the end (delta: 31.5 MB). Free memory was 167.2 MB in the beginning and 182.6 MB in the end (delta: -15.4 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB. [2020-07-17 12:07:10,038 INFO L168 Benchmark]: TraceAbstraction took 21554.90 ms. Allocated memory was 237.0 MB in the beginning and 540.5 MB in the end (delta: 303.6 MB). Free memory was 182.6 MB in the beginning and 358.7 MB in the end (delta: -176.1 MB). Peak memory consumption was 411.7 MB. Max. memory is 7.1 GB. [2020-07-17 12:07:10,048 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 773.04 ms. Allocated memory was 137.9 MB in the beginning and 205.5 MB in the end (delta: 67.6 MB). Free memory was 100.7 MB in the beginning and 172.2 MB in the end (delta: -71.6 MB). Peak memory consumption was 33.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.07 ms. Allocated memory is still 205.5 MB. Free memory was 172.2 MB in the beginning and 167.2 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1252.83 ms. Allocated memory was 205.5 MB in the beginning and 237.0 MB in the end (delta: 31.5 MB). Free memory was 167.2 MB in the beginning and 182.6 MB in the end (delta: -15.4 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21554.90 ms. Allocated memory was 237.0 MB in the beginning and 540.5 MB in the end (delta: 303.6 MB). Free memory was 182.6 MB in the beginning and 358.7 MB in the end (delta: -176.1 MB). Peak memory consumption was 411.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 457]: 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: 606]: Loop Invariant Derived loop invariant: (((((!(8 == \old(a17)) || (a17 <= 8 && a28 <= 9)) || !(\old(a28) <= 7)) || !(\old(a25) <= 0)) || (a17 <= 8 && a25 <= 0)) || 8 == a17) || !(\old(a11) <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.7s, OverallIterations: 8, TraceHistogramMax: 5, AutomataDifference: 14.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 370 SDtfs, 5694 SDslu, 450 SDs, 0 SdLazy, 8028 SolverSat, 1798 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 887 GetRequests, 790 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5531occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 8 MinimizatonAttempts, 1340 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 125 PreInvPairs, 201 NumberOfFragments, 239 HoareAnnotationTreeSize, 125 FomulaSimplifications, 84582 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8025 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 1814 NumberOfCodeBlocks, 1814 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1801 ConstructedInterpolants, 0 QuantifiedInterpolants, 694357 SizeOfPredicates, 6 NumberOfNonLiveVariables, 2131 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 13 InterpolantComputations, 5 PerfectInterpolantSequences, 665/721 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...