/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label48.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 11:36:21,797 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-20 11:36:21,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 11:36:21,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 11:36:21,824 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 11:36:21,838 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 11:36:21,841 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 11:36:21,843 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 11:36:21,844 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 11:36:21,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 11:36:21,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 11:36:21,848 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 11:36:21,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 11:36:21,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 11:36:21,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 11:36:21,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 11:36:21,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 11:36:21,856 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 11:36:21,857 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 11:36:21,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 11:36:21,860 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 11:36:21,860 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 11:36:21,863 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 11:36:21,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 11:36:21,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 11:36:21,872 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 11:36:21,873 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 [2020-07-20 11:36:21,887 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 11:36:21,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 11:36:21,889 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 11:36:21,889 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 11:36:21,889 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 11:36:21,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 11:36:21,890 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 11:36:21,890 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 11:36:21,890 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 11:36:21,890 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 11:36:21,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 11:36:21,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 11:36:21,891 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 11:36:21,891 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 11:36:21,891 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 11:36:21,891 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 11:36:21,892 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 11:36:21,892 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 11:36:21,892 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 11:36:21,892 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 11:36:21,892 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 11:36:21,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 11:36:21,893 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 11:36:21,893 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 11:36:21,893 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 11:36:21,894 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 11:36:21,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:21,894 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 11:36:21,894 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 11:36:21,894 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-20 11:36:22,181 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 11:36:22,195 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 11:36:22,199 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 11:36:22,201 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 11:36:22,201 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 11:36:22,202 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label48.c [2020-07-20 11:36:22,285 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd72f4957/877b35476bda46b6afe763223c232a65/FLAGff9b37c1d [2020-07-20 11:36:22,891 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 11:36:22,891 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label48.c [2020-07-20 11:36:22,908 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd72f4957/877b35476bda46b6afe763223c232a65/FLAGff9b37c1d [2020-07-20 11:36:23,213 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd72f4957/877b35476bda46b6afe763223c232a65 [2020-07-20 11:36:23,222 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 11:36:23,226 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 11:36:23,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 11:36:23,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 11:36:23,231 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 11:36:23,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:36:23" (1/1) ... [2020-07-20 11:36:23,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a0172cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:23, skipping insertion in model container [2020-07-20 11:36:23,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:36:23" (1/1) ... [2020-07-20 11:36:23,242 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 11:36:23,306 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 11:36:23,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:36:23,836 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 11:36:23,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:36:23,984 INFO L208 MainTranslator]: Completed translation [2020-07-20 11:36:23,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:23 WrapperNode [2020-07-20 11:36:23,985 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 11:36:23,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 11:36:23,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 11:36:23,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 11:36:24,000 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:23" (1/1) ... [2020-07-20 11:36:24,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:23" (1/1) ... [2020-07-20 11:36:24,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:23" (1/1) ... [2020-07-20 11:36:24,025 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:23" (1/1) ... [2020-07-20 11:36:24,065 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:23" (1/1) ... [2020-07-20 11:36:24,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:23" (1/1) ... [2020-07-20 11:36:24,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:23" (1/1) ... [2020-07-20 11:36:24,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 11:36:24,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 11:36:24,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 11:36:24,097 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 11:36:24,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:23" (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 [2020-07-20 11:36:24,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 11:36:24,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 11:36:24,178 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 11:36:24,178 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 11:36:24,178 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 11:36:24,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 11:36:24,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 11:36:24,179 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 11:36:24,179 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 11:36:24,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 11:36:24,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 11:36:25,406 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 11:36:25,406 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 11:36:25,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:36:25 BoogieIcfgContainer [2020-07-20 11:36:25,413 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 11:36:25,414 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 11:36:25,414 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 11:36:25,417 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 11:36:25,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 11:36:23" (1/3) ... [2020-07-20 11:36:25,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@793fb2c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:36:25, skipping insertion in model container [2020-07-20 11:36:25,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:23" (2/3) ... [2020-07-20 11:36:25,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@793fb2c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:36:25, skipping insertion in model container [2020-07-20 11:36:25,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:36:25" (3/3) ... [2020-07-20 11:36:25,422 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label48.c [2020-07-20 11:36:25,432 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 11:36:25,441 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 11:36:25,456 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 11:36:25,486 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 11:36:25,487 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 11:36:25,487 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 11:36:25,487 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 11:36:25,487 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 11:36:25,488 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 11:36:25,488 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 11:36:25,488 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 11:36:25,515 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-20 11:36:25,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-20 11:36:25,531 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:25,532 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:25,532 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:25,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:25,539 INFO L82 PathProgramCache]: Analyzing trace with hash 231210793, now seen corresponding path program 1 times [2020-07-20 11:36:25,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:25,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1077860112] [2020-07-20 11:36:25,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:25,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:25,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:36:25,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:25,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:36:25,817 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:36:25,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1077860112] [2020-07-20 11:36:25,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:36:25,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:36:25,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645877971] [2020-07-20 11:36:25,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:36:25,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:25,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:36:25,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:36:25,845 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-20 11:36:26,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:26,845 INFO L93 Difference]: Finished difference Result 619 states and 1060 transitions. [2020-07-20 11:36:26,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:36:26,848 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 143 [2020-07-20 11:36:26,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:26,866 INFO L225 Difference]: With dead ends: 619 [2020-07-20 11:36:26,866 INFO L226 Difference]: Without dead ends: 321 [2020-07-20 11:36:26,873 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:36:26,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-07-20 11:36:26,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2020-07-20 11:36:26,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-07-20 11:36:26,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 421 transitions. [2020-07-20 11:36:26,939 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 421 transitions. Word has length 143 [2020-07-20 11:36:26,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:26,940 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 421 transitions. [2020-07-20 11:36:26,940 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:36:26,941 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 421 transitions. [2020-07-20 11:36:26,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-07-20 11:36:26,945 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:26,946 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:27,160 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:27,160 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:27,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:27,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1011196440, now seen corresponding path program 1 times [2020-07-20 11:36:27,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:27,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [3302354] [2020-07-20 11:36:27,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:27,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:36:27,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:27,402 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:36:27,402 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:36:27,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [3302354] [2020-07-20 11:36:27,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:36:27,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:36:27,403 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859691952] [2020-07-20 11:36:27,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:36:27,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:27,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:36:27,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:36:27,409 INFO L87 Difference]: Start difference. First operand 319 states and 421 transitions. Second operand 3 states. [2020-07-20 11:36:28,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:28,050 INFO L93 Difference]: Finished difference Result 780 states and 1068 transitions. [2020-07-20 11:36:28,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:36:28,050 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 152 [2020-07-20 11:36:28,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:28,056 INFO L225 Difference]: With dead ends: 780 [2020-07-20 11:36:28,057 INFO L226 Difference]: Without dead ends: 467 [2020-07-20 11:36:28,059 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:36:28,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2020-07-20 11:36:28,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 465. [2020-07-20 11:36:28,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 465 states. [2020-07-20 11:36:28,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 636 transitions. [2020-07-20 11:36:28,094 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 636 transitions. Word has length 152 [2020-07-20 11:36:28,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:28,095 INFO L479 AbstractCegarLoop]: Abstraction has 465 states and 636 transitions. [2020-07-20 11:36:28,095 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:36:28,095 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 636 transitions. [2020-07-20 11:36:28,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-07-20 11:36:28,099 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:28,099 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:28,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:28,314 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:28,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:28,315 INFO L82 PathProgramCache]: Analyzing trace with hash -994898784, now seen corresponding path program 1 times [2020-07-20 11:36:28,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:28,317 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [505412159] [2020-07-20 11:36:28,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:28,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:28,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 11:36:28,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:28,499 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 11:36:28,500 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:36:28,608 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 11:36:28,609 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [505412159] [2020-07-20 11:36:28,609 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 11:36:28,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-07-20 11:36:28,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728301494] [2020-07-20 11:36:28,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 11:36:28,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:28,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 11:36:28,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:36:28,611 INFO L87 Difference]: Start difference. First operand 465 states and 636 transitions. Second operand 4 states. [2020-07-20 11:36:29,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:29,378 INFO L93 Difference]: Finished difference Result 1376 states and 1912 transitions. [2020-07-20 11:36:29,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 11:36:29,380 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 156 [2020-07-20 11:36:29,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:29,387 INFO L225 Difference]: With dead ends: 1376 [2020-07-20 11:36:29,387 INFO L226 Difference]: Without dead ends: 917 [2020-07-20 11:36:29,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 304 SyntacticMatches, 4 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:36:29,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2020-07-20 11:36:29,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 917. [2020-07-20 11:36:29,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 917 states. [2020-07-20 11:36:29,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1236 transitions. [2020-07-20 11:36:29,454 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1236 transitions. Word has length 156 [2020-07-20 11:36:29,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:29,455 INFO L479 AbstractCegarLoop]: Abstraction has 917 states and 1236 transitions. [2020-07-20 11:36:29,455 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 11:36:29,455 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1236 transitions. [2020-07-20 11:36:29,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-07-20 11:36:29,461 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:29,461 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:29,675 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:29,676 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:29,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:29,677 INFO L82 PathProgramCache]: Analyzing trace with hash -1189975825, now seen corresponding path program 1 times [2020-07-20 11:36:29,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:29,678 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1946841299] [2020-07-20 11:36:29,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:29,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:29,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 11:36:29,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:29,842 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-20 11:36:29,843 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:36:29,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1946841299] [2020-07-20 11:36:29,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:36:29,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 11:36:29,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317028033] [2020-07-20 11:36:29,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 11:36:29,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:29,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 11:36:29,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:36:29,847 INFO L87 Difference]: Start difference. First operand 917 states and 1236 transitions. Second operand 5 states. [2020-07-20 11:36:30,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:30,759 INFO L93 Difference]: Finished difference Result 2616 states and 3641 transitions. [2020-07-20 11:36:30,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 11:36:30,760 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 170 [2020-07-20 11:36:30,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:30,782 INFO L225 Difference]: With dead ends: 2616 [2020-07-20 11:36:30,782 INFO L226 Difference]: Without dead ends: 1705 [2020-07-20 11:36:30,785 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:36:30,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2020-07-20 11:36:30,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 1681. [2020-07-20 11:36:30,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1681 states. [2020-07-20 11:36:30,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1681 states to 1681 states and 2154 transitions. [2020-07-20 11:36:30,869 INFO L78 Accepts]: Start accepts. Automaton has 1681 states and 2154 transitions. Word has length 170 [2020-07-20 11:36:30,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:30,869 INFO L479 AbstractCegarLoop]: Abstraction has 1681 states and 2154 transitions. [2020-07-20 11:36:30,869 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 11:36:30,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1681 states and 2154 transitions. [2020-07-20 11:36:30,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-07-20 11:36:30,880 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:30,880 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:31,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:31,095 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:31,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:31,096 INFO L82 PathProgramCache]: Analyzing trace with hash -2008757332, now seen corresponding path program 1 times [2020-07-20 11:36:31,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:31,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [378014805] [2020-07-20 11:36:31,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:31,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:36:31,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:31,251 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 11:36:31,251 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:36:31,336 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 11:36:31,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [378014805] [2020-07-20 11:36:31,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:36:31,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 11:36:31,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961689284] [2020-07-20 11:36:31,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 11:36:31,340 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:31,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 11:36:31,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:36:31,341 INFO L87 Difference]: Start difference. First operand 1681 states and 2154 transitions. Second operand 7 states. [2020-07-20 11:36:32,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:32,812 INFO L93 Difference]: Finished difference Result 3994 states and 5259 transitions. [2020-07-20 11:36:32,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-20 11:36:32,816 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 173 [2020-07-20 11:36:32,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:32,830 INFO L225 Difference]: With dead ends: 3994 [2020-07-20 11:36:32,830 INFO L226 Difference]: Without dead ends: 2319 [2020-07-20 11:36:32,839 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 343 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-07-20 11:36:32,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2319 states. [2020-07-20 11:36:32,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2319 to 2299. [2020-07-20 11:36:32,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2299 states. [2020-07-20 11:36:32,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 2873 transitions. [2020-07-20 11:36:32,920 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 2873 transitions. Word has length 173 [2020-07-20 11:36:32,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:32,920 INFO L479 AbstractCegarLoop]: Abstraction has 2299 states and 2873 transitions. [2020-07-20 11:36:32,920 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 11:36:32,921 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 2873 transitions. [2020-07-20 11:36:32,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-07-20 11:36:32,930 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:32,931 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:33,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:33,146 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:33,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:33,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1589066371, now seen corresponding path program 1 times [2020-07-20 11:36:33,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:33,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1209820427] [2020-07-20 11:36:33,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:33,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:33,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:36:33,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:33,406 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 62 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-20 11:36:33,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:36:33,506 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 54 proven. 10 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-20 11:36:33,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1209820427] [2020-07-20 11:36:33,509 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:36:33,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 11:36:33,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827201648] [2020-07-20 11:36:33,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 11:36:33,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:33,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 11:36:33,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:36:33,512 INFO L87 Difference]: Start difference. First operand 2299 states and 2873 transitions. Second operand 7 states. [2020-07-20 11:36:34,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:34,079 INFO L93 Difference]: Finished difference Result 4455 states and 5676 transitions. [2020-07-20 11:36:34,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 11:36:34,080 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 183 [2020-07-20 11:36:34,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:34,101 INFO L225 Difference]: With dead ends: 4455 [2020-07-20 11:36:34,102 INFO L226 Difference]: Without dead ends: 2162 [2020-07-20 11:36:34,108 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 360 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 11:36:34,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2162 states. [2020-07-20 11:36:34,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2162 to 2134. [2020-07-20 11:36:34,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2134 states. [2020-07-20 11:36:34,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2134 states to 2134 states and 2547 transitions. [2020-07-20 11:36:34,167 INFO L78 Accepts]: Start accepts. Automaton has 2134 states and 2547 transitions. Word has length 183 [2020-07-20 11:36:34,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:34,167 INFO L479 AbstractCegarLoop]: Abstraction has 2134 states and 2547 transitions. [2020-07-20 11:36:34,167 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 11:36:34,168 INFO L276 IsEmpty]: Start isEmpty. Operand 2134 states and 2547 transitions. [2020-07-20 11:36:34,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-07-20 11:36:34,176 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:34,176 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:34,391 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:34,392 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:34,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:34,393 INFO L82 PathProgramCache]: Analyzing trace with hash -1894700587, now seen corresponding path program 1 times [2020-07-20 11:36:34,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:34,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [25012265] [2020-07-20 11:36:34,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:34,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:34,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:36:34,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:34,605 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 11:36:34,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:36:34,674 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 11:36:34,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [25012265] [2020-07-20 11:36:34,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:36:34,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 11:36:34,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720573289] [2020-07-20 11:36:34,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 11:36:34,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:34,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 11:36:34,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:36:34,676 INFO L87 Difference]: Start difference. First operand 2134 states and 2547 transitions. Second operand 7 states. [2020-07-20 11:36:36,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:36,118 INFO L93 Difference]: Finished difference Result 5418 states and 6431 transitions. [2020-07-20 11:36:36,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 11:36:36,124 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 197 [2020-07-20 11:36:36,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:36,137 INFO L225 Difference]: With dead ends: 5418 [2020-07-20 11:36:36,138 INFO L226 Difference]: Without dead ends: 3290 [2020-07-20 11:36:36,145 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 389 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:36:36,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3290 states. [2020-07-20 11:36:36,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3290 to 3290. [2020-07-20 11:36:36,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3290 states. [2020-07-20 11:36:36,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3290 states to 3290 states and 3780 transitions. [2020-07-20 11:36:36,238 INFO L78 Accepts]: Start accepts. Automaton has 3290 states and 3780 transitions. Word has length 197 [2020-07-20 11:36:36,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:36,239 INFO L479 AbstractCegarLoop]: Abstraction has 3290 states and 3780 transitions. [2020-07-20 11:36:36,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 11:36:36,240 INFO L276 IsEmpty]: Start isEmpty. Operand 3290 states and 3780 transitions. [2020-07-20 11:36:36,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-07-20 11:36:36,250 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:36,251 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:36,464 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:36,465 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:36,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:36,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1347444083, now seen corresponding path program 1 times [2020-07-20 11:36:36,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:36,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1496724865] [2020-07-20 11:36:36,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:36,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:36,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:36:36,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:36,619 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 79 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 11:36:36,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:36:36,718 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 79 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 11:36:36,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1496724865] [2020-07-20 11:36:36,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:36:36,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 11:36:36,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097472212] [2020-07-20 11:36:36,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 11:36:36,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:36,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 11:36:36,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:36:36,723 INFO L87 Difference]: Start difference. First operand 3290 states and 3780 transitions. Second operand 7 states. [2020-07-20 11:36:38,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:38,052 INFO L93 Difference]: Finished difference Result 6288 states and 7180 transitions. [2020-07-20 11:36:38,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 11:36:38,058 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 204 [2020-07-20 11:36:38,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:38,070 INFO L225 Difference]: With dead ends: 6288 [2020-07-20 11:36:38,071 INFO L226 Difference]: Without dead ends: 2987 [2020-07-20 11:36:38,078 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 403 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:36:38,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2987 states. [2020-07-20 11:36:38,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2987 to 2841. [2020-07-20 11:36:38,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2841 states. [2020-07-20 11:36:38,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2841 states to 2841 states and 3194 transitions. [2020-07-20 11:36:38,138 INFO L78 Accepts]: Start accepts. Automaton has 2841 states and 3194 transitions. Word has length 204 [2020-07-20 11:36:38,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:38,139 INFO L479 AbstractCegarLoop]: Abstraction has 2841 states and 3194 transitions. [2020-07-20 11:36:38,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 11:36:38,139 INFO L276 IsEmpty]: Start isEmpty. Operand 2841 states and 3194 transitions. [2020-07-20 11:36:38,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-07-20 11:36:38,148 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:38,149 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:38,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:38,362 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:38,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:38,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1249953049, now seen corresponding path program 1 times [2020-07-20 11:36:38,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:38,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1451858355] [2020-07-20 11:36:38,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:38,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:38,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 11:36:38,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:38,524 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-07-20 11:36:38,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:36:38,604 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 93 proven. 39 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-07-20 11:36:38,605 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1451858355] [2020-07-20 11:36:38,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:36:38,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 11:36:38,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171405320] [2020-07-20 11:36:38,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 11:36:38,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:38,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 11:36:38,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:36:38,607 INFO L87 Difference]: Start difference. First operand 2841 states and 3194 transitions. Second operand 7 states. [2020-07-20 11:36:39,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:39,726 INFO L93 Difference]: Finished difference Result 7157 states and 8071 transitions. [2020-07-20 11:36:39,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 11:36:39,727 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 229 [2020-07-20 11:36:39,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:39,728 INFO L225 Difference]: With dead ends: 7157 [2020-07-20 11:36:39,728 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 11:36:39,746 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 454 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:36:39,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 11:36:39,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 11:36:39,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 11:36:39,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 11:36:39,747 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 229 [2020-07-20 11:36:39,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:39,748 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 11:36:39,748 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 11:36:39,748 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 11:36:39,748 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 11:36:39,962 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:39,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 11:36:41,787 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 132 DAG size of output: 67 [2020-07-20 11:36:42,171 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 50 [2020-07-20 11:36:42,541 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 50 [2020-07-20 11:36:42,546 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:36:42,546 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (or (<= ~a11~0 0) (< 0 |old(~a11~0)|)) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-20 11:36:42,546 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:36:42,547 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,547 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,547 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,547 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,548 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,548 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-20 11:36:42,548 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-20 11:36:42,548 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-20 11:36:42,548 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-20 11:36:42,548 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-20 11:36:42,548 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-20 11:36:42,548 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-20 11:36:42,549 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-20 11:36:42,549 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-20 11:36:42,549 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-20 11:36:42,549 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-20 11:36:42,549 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-20 11:36:42,549 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-20 11:36:42,549 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,549 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,549 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,549 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,549 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-20 11:36:42,549 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,550 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-20 11:36:42,550 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-20 11:36:42,550 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-20 11:36:42,550 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-20 11:36:42,550 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-20 11:36:42,550 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-20 11:36:42,550 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-20 11:36:42,550 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-20 11:36:42,550 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-20 11:36:42,550 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-20 11:36:42,551 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-20 11:36:42,551 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-20 11:36:42,551 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-20 11:36:42,551 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-20 11:36:42,551 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-20 11:36:42,551 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,551 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,551 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,551 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,552 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,552 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 583) no Hoare annotation was computed. [2020-07-20 11:36:42,552 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-20 11:36:42,552 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-20 11:36:42,552 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-20 11:36:42,552 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-20 11:36:42,552 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-20 11:36:42,553 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-20 11:36:42,553 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-20 11:36:42,553 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-20 11:36:42,553 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-20 11:36:42,553 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-20 11:36:42,553 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-20 11:36:42,553 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,553 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,554 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,554 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,554 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,554 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-20 11:36:42,554 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-20 11:36:42,554 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-20 11:36:42,554 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-20 11:36:42,554 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-20 11:36:42,554 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-20 11:36:42,554 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-20 11:36:42,554 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-20 11:36:42,554 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-20 11:36:42,555 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-20 11:36:42,555 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-20 11:36:42,555 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-20 11:36:42,555 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-20 11:36:42,555 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,555 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,555 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,556 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,556 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,556 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-20 11:36:42,556 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-20 11:36:42,556 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-20 11:36:42,556 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-20 11:36:42,556 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-20 11:36:42,556 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-20 11:36:42,556 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-20 11:36:42,556 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-20 11:36:42,556 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-20 11:36:42,557 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-20 11:36:42,557 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-20 11:36:42,557 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-20 11:36:42,557 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-20 11:36:42,557 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-20 11:36:42,557 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-20 11:36:42,557 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-20 11:36:42,557 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,557 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,557 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,557 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,557 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-20 11:36:42,557 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,558 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-20 11:36:42,558 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,558 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-20 11:36:42,558 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-20 11:36:42,558 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-20 11:36:42,558 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,558 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,558 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-20 11:36:42,558 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-20 11:36:42,558 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-20 11:36:42,558 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-20 11:36:42,559 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-20 11:36:42,559 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-20 11:36:42,559 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-20 11:36:42,559 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-20 11:36:42,559 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-20 11:36:42,559 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-20 11:36:42,559 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-20 11:36:42,559 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,560 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,560 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,560 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,560 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,560 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,560 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-20 11:36:42,560 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-20 11:36:42,561 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-20 11:36:42,561 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-20 11:36:42,561 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-20 11:36:42,561 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-20 11:36:42,561 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-20 11:36:42,561 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-20 11:36:42,561 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-20 11:36:42,561 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-20 11:36:42,561 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-20 11:36:42,561 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,561 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,561 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,562 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,562 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,562 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,562 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-20 11:36:42,562 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-20 11:36:42,562 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-20 11:36:42,562 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-20 11:36:42,562 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-20 11:36:42,562 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-20 11:36:42,562 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-20 11:36:42,562 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-20 11:36:42,562 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-20 11:36:42,562 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-20 11:36:42,562 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-20 11:36:42,562 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-20 11:36:42,563 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-20 11:36:42,563 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-20 11:36:42,563 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,563 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,563 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,563 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse8 (<= ~a11~0 0))) (let ((.cse18 (<= ~a17~0 |old(~a17~0)|)) (.cse20 (or .cse8 (< 0 |old(~a11~0)|))) (.cse19 (<= ~a28~0 10)) (.cse3 (= ~a19~0 |old(~a19~0)|)) (.cse4 (<= |old(~a28~0)| ~a28~0))) (let ((.cse12 (not (<= |old(~a11~0)| 0))) (.cse15 (and .cse18 .cse20 .cse19 .cse3 .cse4)) (.cse17 (not (<= |old(~a17~0)| 7))) (.cse1 (<= ~a17~0 8)) (.cse16 (not (<= |old(~a19~0)| 0))) (.cse11 (not (<= |old(~a28~0)| 7))) (.cse6 (not (= 1 |old(~a25~0)|))) (.cse9 (<= ~a28~0 7)) (.cse0 (not (= 1 |old(~a19~0)|))) (.cse13 (not (<= |old(~a28~0)| 10))) (.cse14 (not (<= 9 |old(~a28~0)|))) (.cse5 (not (<= 8 |old(~a17~0)|))) (.cse2 (<= 8 ~a17~0)) (.cse10 (= ~a25~0 |old(~a25~0)|)) (.cse7 (not (<= |old(~a17~0)| 8)))) (and (or .cse0 (and .cse1 .cse2 .cse3 .cse4 (= 1 ~a25~0)) .cse5 .cse6 .cse7) (or .cse0 (and .cse8 .cse1 .cse3 .cse4 .cse9 .cse10) .cse11 .cse7 .cse12) (or .cse13 .cse14 .cse15 .cse16 .cse17) (or .cse0 .cse8 .cse5 .cse6 .cse7 .cse12) (or .cse0 .cse13 .cse14 .cse15 .cse7) (or .cse0 .cse11 .cse17 (and .cse18 .cse3 .cse4 .cse9)) (or .cse0 .cse13 .cse5 .cse6 .cse19 .cse7) (or .cse11 .cse5 .cse16 .cse7 .cse9) (or .cse13 (and .cse20 .cse1 .cse2 .cse19 .cse3 .cse4 .cse10) .cse5 .cse16 .cse7) (or .cse0 .cse11 .cse6 .cse7 .cse9) (or .cse0 .cse13 .cse14 .cse5 (and .cse2 .cse10) .cse7))))) [2020-07-20 11:36:42,563 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,564 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,564 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,564 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-20 11:36:42,564 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-20 11:36:42,564 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-20 11:36:42,564 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-20 11:36:42,564 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-20 11:36:42,564 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-20 11:36:42,564 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-20 11:36:42,564 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-20 11:36:42,564 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-20 11:36:42,564 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-20 11:36:42,564 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-20 11:36:42,565 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-20 11:36:42,565 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-20 11:36:42,565 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,565 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,565 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,565 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,565 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,565 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,565 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-20 11:36:42,565 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-20 11:36:42,565 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-20 11:36:42,565 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-20 11:36:42,565 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-20 11:36:42,565 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-20 11:36:42,565 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-20 11:36:42,566 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-20 11:36:42,566 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-20 11:36:42,566 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-20 11:36:42,566 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-20 11:36:42,566 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-20 11:36:42,566 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-20 11:36:42,566 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-20 11:36:42,566 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-20 11:36:42,566 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-20 11:36:42,566 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,566 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,566 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,566 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,566 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:42,567 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-20 11:36:42,567 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-20 11:36:42,567 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-20 11:36:42,567 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-20 11:36:42,567 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-20 11:36:42,567 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-20 11:36:42,567 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-20 11:36:42,567 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-20 11:36:42,567 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-20 11:36:42,567 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-20 11:36:42,567 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-20 11:36:42,567 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-20 11:36:42,567 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-20 11:36:42,567 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-20 11:36:42,568 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-20 11:36:42,568 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-20 11:36:42,568 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-20 11:36:42,568 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-20 11:36:42,568 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-20 11:36:42,568 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:36:42,568 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= ~a28~0 7)) [2020-07-20 11:36:42,569 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 11:36:42,569 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:36:42,569 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (<= ~a28~0 7) (= ~a25~0 |old(~a25~0)|))) [2020-07-20 11:36:42,569 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse4 (<= 9 ~a28~0)) (.cse2 (<= ~a17~0 7)) (.cse3 (< 7 |old(~a17~0)|)) (.cse0 (= 1 ~a19~0)) (.cse9 (<= ~a28~0 7)) (.cse5 (<= ~a17~0 |old(~a17~0)|)) (.cse6 (<= 8 ~a17~0)) (.cse1 (<= ~a28~0 10)) (.cse7 (not (= 1 |old(~a25~0)|))) (.cse8 (<= ~a19~0 0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (<= |old(~a28~0)| 7)) (and .cse0 .cse5 .cse6 .cse7 (= 1 ~a25~0)) (and .cse0 .cse5 .cse6 .cse7 .cse1 .cse4) (and .cse1 .cse2 .cse3 .cse4 .cse8) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0)) (and (<= 1 ~a19~0) .cse2 (<= ~a19~0 |old(~a19~0)|) .cse3 .cse9) (and .cse0 .cse5 (<= ~a11~0 0) .cse9 (= ~a25~0 |old(~a25~0)|)) (and .cse5 .cse6 .cse1 .cse7 .cse8))) [2020-07-20 11:36:42,569 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-20 11:36:42,569 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-20 11:36:42,570 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse4 (<= 9 ~a28~0)) (.cse2 (<= ~a17~0 7)) (.cse3 (< 7 |old(~a17~0)|)) (.cse0 (= 1 ~a19~0)) (.cse9 (<= ~a28~0 7)) (.cse5 (<= ~a17~0 |old(~a17~0)|)) (.cse6 (<= 8 ~a17~0)) (.cse1 (<= ~a28~0 10)) (.cse7 (not (= 1 |old(~a25~0)|))) (.cse8 (<= ~a19~0 0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (<= |old(~a28~0)| 7)) (and .cse0 .cse5 .cse6 .cse7 (= 1 ~a25~0)) (and .cse0 .cse5 .cse6 .cse7 .cse1 .cse4) (and .cse1 .cse2 .cse3 .cse4 .cse8) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0)) (and (<= 1 ~a19~0) .cse2 (<= ~a19~0 |old(~a19~0)|) .cse3 .cse9) (and .cse0 .cse5 (<= ~a11~0 0) .cse9 (= ~a25~0 |old(~a25~0)|)) (and .cse5 .cse6 .cse1 .cse7 .cse8))) [2020-07-20 11:36:42,570 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-20 11:36:42,570 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-20 11:36:42,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 11:36:42 BoogieIcfgContainer [2020-07-20 11:36:42,593 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 11:36:42,596 INFO L168 Benchmark]: Toolchain (without parser) took 19370.84 ms. Allocated memory was 145.8 MB in the beginning and 504.4 MB in the end (delta: 358.6 MB). Free memory was 100.8 MB in the beginning and 287.4 MB in the end (delta: -186.6 MB). Peak memory consumption was 371.3 MB. Max. memory is 7.1 GB. [2020-07-20 11:36:42,597 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 145.8 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 11:36:42,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 758.13 ms. Allocated memory was 145.8 MB in the beginning and 205.5 MB in the end (delta: 59.8 MB). Free memory was 100.4 MB in the beginning and 172.2 MB in the end (delta: -71.8 MB). Peak memory consumption was 30.3 MB. Max. memory is 7.1 GB. [2020-07-20 11:36:42,599 INFO L168 Benchmark]: Boogie Preprocessor took 110.44 ms. Allocated memory is still 205.5 MB. Free memory was 172.2 MB in the beginning and 167.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-20 11:36:42,599 INFO L168 Benchmark]: RCFGBuilder took 1316.12 ms. Allocated memory was 205.5 MB in the beginning and 239.1 MB in the end (delta: 33.6 MB). Free memory was 167.4 MB in the beginning and 182.1 MB in the end (delta: -14.7 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. [2020-07-20 11:36:42,600 INFO L168 Benchmark]: TraceAbstraction took 17178.80 ms. Allocated memory was 239.1 MB in the beginning and 504.4 MB in the end (delta: 265.3 MB). Free memory was 182.1 MB in the beginning and 287.4 MB in the end (delta: -105.3 MB). Peak memory consumption was 359.3 MB. Max. memory is 7.1 GB. [2020-07-20 11:36:42,604 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 145.8 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 758.13 ms. Allocated memory was 145.8 MB in the beginning and 205.5 MB in the end (delta: 59.8 MB). Free memory was 100.4 MB in the beginning and 172.2 MB in the end (delta: -71.8 MB). Peak memory consumption was 30.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.44 ms. Allocated memory is still 205.5 MB. Free memory was 172.2 MB in the beginning and 167.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1316.12 ms. Allocated memory was 205.5 MB in the beginning and 239.1 MB in the end (delta: 33.6 MB). Free memory was 167.4 MB in the beginning and 182.1 MB in the end (delta: -14.7 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17178.80 ms. Allocated memory was 239.1 MB in the beginning and 504.4 MB in the end (delta: 265.3 MB). Free memory was 182.1 MB in the beginning and 287.4 MB in the end (delta: -105.3 MB). Peak memory consumption was 359.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 583]: 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: (((((((((!(1 == \old(a19)) || ((((1 == a19 && a28 <= 10) && a17 <= 7) && 7 < \old(a17)) && 9 <= a28)) || !(\old(a28) <= 7)) || ((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && !(1 == \old(a25))) && 1 == a25)) || (((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && !(1 == \old(a25))) && a28 <= 10) && 9 <= a28)) || ((((a28 <= 10 && a17 <= 7) && 7 < \old(a17)) && 9 <= a28) && a19 <= 0)) || !(\old(a17) <= 8)) || !(\old(a11) <= 0)) || ((((1 <= a19 && a17 <= 7) && a19 <= \old(a19)) && 7 < \old(a17)) && a28 <= 7)) || ((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && a28 <= 7) && a25 == \old(a25))) || ((((a17 <= \old(a17) && 8 <= a17) && a28 <= 10) && !(1 == \old(a25))) && a19 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.4s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 9.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 563 SDtfs, 4213 SDslu, 495 SDs, 0 SdLazy, 7255 SolverSat, 962 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2763 GetRequests, 2710 SyntacticMatches, 8 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3290occurred 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: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 222 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 128 PreInvPairs, 194 NumberOfFragments, 669 HoareAnnotationTreeSize, 128 FomulaSimplifications, 2648 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3020 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1607 NumberOfCodeBlocks, 1607 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2734 ConstructedInterpolants, 0 QuantifiedInterpolants, 819544 SizeOfPredicates, 12 NumberOfNonLiveVariables, 4004 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 15 InterpolantComputations, 4 PerfectInterpolantSequences, 924/996 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...