/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 SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:23:23,583 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 01:23:23,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 01:23:23,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 01:23:23,628 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 01:23:23,629 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 01:23:23,630 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 01:23:23,630 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 01:23:23,632 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 01:23:23,634 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 01:23:23,635 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 01:23:23,636 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 01:23:23,637 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 01:23:23,638 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 01:23:23,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 01:23:23,647 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 01:23:23,648 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 01:23:23,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 01:23:23,650 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 [2020-07-21 01:23:23,667 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:23:23,667 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:23:23,668 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:23:23,669 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:23:23,669 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:23:23,669 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:23:23,669 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:23:23,669 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:23:23,670 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:23:23,670 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:23:23,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:23:23,670 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:23:23,670 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:23:23,671 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:23:23,671 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:23:23,671 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:23:23,671 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:23:23,671 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:23:23,672 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:23:23,672 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:23:23,672 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:23:23,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:23:23,672 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:23:23,673 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:23:23,673 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:23:23,673 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:23:23,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:23,673 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:23:23,674 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:23:23,674 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 -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 01:23:23,959 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:23:23,975 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:23:23,979 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:23:23,982 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:23:23,982 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:23:23,984 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label05.c [2020-07-21 01:23:24,061 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25d435469/b3907c0602dd4265bea3bc7d62b01842/FLAG2d8f7b992 [2020-07-21 01:23:24,602 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:23:24,603 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label05.c [2020-07-21 01:23:24,620 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25d435469/b3907c0602dd4265bea3bc7d62b01842/FLAG2d8f7b992 [2020-07-21 01:23:24,875 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25d435469/b3907c0602dd4265bea3bc7d62b01842 [2020-07-21 01:23:24,886 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:23:24,889 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:23:24,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:23:24,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:23:24,893 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:23:24,894 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:23:24" (1/1) ... [2020-07-21 01:23:24,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f318255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:24, skipping insertion in model container [2020-07-21 01:23:24,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:23:24" (1/1) ... [2020-07-21 01:23:24,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:23:24,965 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:23:25,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:23:25,365 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:23:25,577 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:23:25,593 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:23:25,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:25 WrapperNode [2020-07-21 01:23:25,594 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:23:25,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:23:25,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:23:25,595 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:23:25,609 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:25" (1/1) ... [2020-07-21 01:23:25,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:25" (1/1) ... [2020-07-21 01:23:25,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:25" (1/1) ... [2020-07-21 01:23:25,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:25" (1/1) ... [2020-07-21 01:23:25,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:25" (1/1) ... [2020-07-21 01:23:25,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:25" (1/1) ... [2020-07-21 01:23:25,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:25" (1/1) ... [2020-07-21 01:23:25,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:23:25,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:23:25,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:23:25,710 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:23:25,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:25" (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 [2020-07-21 01:23:25,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:23:25,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:23:25,769 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 01:23:25,769 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:23:25,769 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 01:23:25,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:23:25,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:23:25,770 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 01:23:25,770 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:23:25,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:23:25,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:23:26,867 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:23:26,867 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 01:23:26,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:23:26 BoogieIcfgContainer [2020-07-21 01:23:26,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:23:26,875 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:23:26,875 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:23:26,878 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:23:26,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:23:24" (1/3) ... [2020-07-21 01:23:26,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@189bc09e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:23:26, skipping insertion in model container [2020-07-21 01:23:26,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:25" (2/3) ... [2020-07-21 01:23:26,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@189bc09e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:23:26, skipping insertion in model container [2020-07-21 01:23:26,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:23:26" (3/3) ... [2020-07-21 01:23:26,882 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label05.c [2020-07-21 01:23:26,893 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:23:26,901 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 01:23:26,914 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 01:23:26,940 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:23:26,941 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:23:26,941 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:23:26,941 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:23:26,942 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:23:26,942 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:23:26,942 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:23:26,942 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:23:26,965 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 01:23:26,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-21 01:23:26,980 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:26,982 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] [2020-07-21 01:23:26,982 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:26,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:26,989 INFO L82 PathProgramCache]: Analyzing trace with hash -2092008314, now seen corresponding path program 1 times [2020-07-21 01:23:26,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:26,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1372965068] [2020-07-21 01:23:26,999 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 [2020-07-21 01:23:27,205 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:23:27,206 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:27,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 52 conjunts are in the unsatisfiable core [2020-07-21 01:23:27,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:27,777 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:23:27,782 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 01:23:27,783 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 01:23:27,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:27,887 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:23:27,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1372965068] [2020-07-21 01:23:27,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:23:27,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-21 01:23:27,891 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705615110] [2020-07-21 01:23:27,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 01:23:27,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:27,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 01:23:27,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-07-21 01:23:27,918 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 10 states. [2020-07-21 01:23:29,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:29,091 INFO L93 Difference]: Finished difference Result 527 states and 878 transitions. [2020-07-21 01:23:29,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:23:29,093 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 132 [2020-07-21 01:23:29,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:29,107 INFO L225 Difference]: With dead ends: 527 [2020-07-21 01:23:29,107 INFO L226 Difference]: Without dead ends: 229 [2020-07-21 01:23:29,114 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2020-07-21 01:23:29,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-07-21 01:23:29,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-07-21 01:23:29,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-07-21 01:23:29,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 319 transitions. [2020-07-21 01:23:29,177 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 319 transitions. Word has length 132 [2020-07-21 01:23:29,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:29,178 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 319 transitions. [2020-07-21 01:23:29,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 01:23:29,178 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 319 transitions. [2020-07-21 01:23:29,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-07-21 01:23:29,182 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:29,183 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] [2020-07-21 01:23:29,398 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:29,399 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:29,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:29,400 INFO L82 PathProgramCache]: Analyzing trace with hash 572086519, now seen corresponding path program 1 times [2020-07-21 01:23:29,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:29,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1185822953] [2020-07-21 01:23:29,402 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 [2020-07-21 01:23:29,515 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:23:29,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:29,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-21 01:23:29,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:30,093 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:30,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:30,524 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 6 conjuncts [2020-07-21 01:23:30,526 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:23:30,527 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 01:23:30,528 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:23:30,529 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:23:30,547 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 5, 1] term [2020-07-21 01:23:30,547 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:23:30,592 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:23:30,664 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:23:30,771 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:30,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1185822953] [2020-07-21 01:23:30,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:30,772 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 01:23:30,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286140296] [2020-07-21 01:23:30,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 01:23:30,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:30,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 01:23:30,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 01:23:30,776 INFO L87 Difference]: Start difference. First operand 229 states and 319 transitions. Second operand 21 states. [2020-07-21 01:23:31,837 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 01:23:32,962 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-07-21 01:23:34,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:34,499 INFO L93 Difference]: Finished difference Result 738 states and 1083 transitions. [2020-07-21 01:23:34,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-21 01:23:34,501 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 141 [2020-07-21 01:23:34,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:34,507 INFO L225 Difference]: With dead ends: 738 [2020-07-21 01:23:34,507 INFO L226 Difference]: Without dead ends: 423 [2020-07-21 01:23:34,510 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 259 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=516, Invalid=1290, Unknown=0, NotChecked=0, Total=1806 [2020-07-21 01:23:34,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-07-21 01:23:34,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 393. [2020-07-21 01:23:34,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-07-21 01:23:34,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 533 transitions. [2020-07-21 01:23:34,574 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 533 transitions. Word has length 141 [2020-07-21 01:23:34,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:34,574 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 533 transitions. [2020-07-21 01:23:34,574 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 01:23:34,574 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 533 transitions. [2020-07-21 01:23:34,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-21 01:23:34,578 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:34,579 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:23:34,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:34,793 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:34,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:34,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1736147466, now seen corresponding path program 1 times [2020-07-21 01:23:34,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:34,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [731824546] [2020-07-21 01:23:34,795 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 [2020-07-21 01:23:34,876 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 01:23:34,876 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:34,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 01:23:34,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:34,911 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 01:23:34,913 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:23:34,945 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:23:34,984 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:34,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:35,093 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:23:35,097 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:23:35,121 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:23:35,174 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:23:35,179 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:23:35,202 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:35,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [731824546] [2020-07-21 01:23:35,203 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:35,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:23:35,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669415133] [2020-07-21 01:23:35,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:23:35,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:35,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:23:35,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:23:35,208 INFO L87 Difference]: Start difference. First operand 393 states and 533 transitions. Second operand 7 states. [2020-07-21 01:23:36,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:36,862 INFO L93 Difference]: Finished difference Result 1434 states and 2028 transitions. [2020-07-21 01:23:36,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-21 01:23:36,867 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 153 [2020-07-21 01:23:36,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:36,874 INFO L225 Difference]: With dead ends: 1434 [2020-07-21 01:23:36,874 INFO L226 Difference]: Without dead ends: 1047 [2020-07-21 01:23:36,876 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 305 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2020-07-21 01:23:36,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2020-07-21 01:23:36,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1015. [2020-07-21 01:23:36,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2020-07-21 01:23:36,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1272 transitions. [2020-07-21 01:23:36,936 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1272 transitions. Word has length 153 [2020-07-21 01:23:36,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:36,936 INFO L479 AbstractCegarLoop]: Abstraction has 1015 states and 1272 transitions. [2020-07-21 01:23:36,937 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:23:36,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1272 transitions. [2020-07-21 01:23:36,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-07-21 01:23:36,941 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:36,942 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:23:37,155 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:37,156 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:37,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:37,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1282216505, now seen corresponding path program 1 times [2020-07-21 01:23:37,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:37,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1333456550] [2020-07-21 01:23:37,158 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 [2020-07-21 01:23:37,261 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:23:37,261 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:37,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:23:37,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:37,309 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 01:23:37,309 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:23:37,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1333456550] [2020-07-21 01:23:37,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:23:37,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:23:37,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342577514] [2020-07-21 01:23:37,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:23:37,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:37,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:23:37,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:23:37,312 INFO L87 Difference]: Start difference. First operand 1015 states and 1272 transitions. Second operand 3 states. [2020-07-21 01:23:37,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:37,986 INFO L93 Difference]: Finished difference Result 2644 states and 3454 transitions. [2020-07-21 01:23:37,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:23:37,991 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 167 [2020-07-21 01:23:37,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:38,009 INFO L225 Difference]: With dead ends: 2644 [2020-07-21 01:23:38,009 INFO L226 Difference]: Without dead ends: 1635 [2020-07-21 01:23:38,013 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:23:38,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1635 states. [2020-07-21 01:23:38,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1635 to 1626. [2020-07-21 01:23:38,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1626 states. [2020-07-21 01:23:38,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1626 states to 1626 states and 2092 transitions. [2020-07-21 01:23:38,106 INFO L78 Accepts]: Start accepts. Automaton has 1626 states and 2092 transitions. Word has length 167 [2020-07-21 01:23:38,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:38,110 INFO L479 AbstractCegarLoop]: Abstraction has 1626 states and 2092 transitions. [2020-07-21 01:23:38,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:23:38,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1626 states and 2092 transitions. [2020-07-21 01:23:38,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-07-21 01:23:38,118 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:38,118 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:23:38,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:38,333 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:38,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:38,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1079230113, now seen corresponding path program 1 times [2020-07-21 01:23:38,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:38,334 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1541969639] [2020-07-21 01:23:38,334 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 [2020-07-21 01:23:38,425 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:23:38,426 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:38,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 41 conjunts are in the unsatisfiable core [2020-07-21 01:23:38,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:38,579 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 40 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:38,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:38,849 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 42 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:38,849 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1541969639] [2020-07-21 01:23:38,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:38,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 10 [2020-07-21 01:23:38,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483588243] [2020-07-21 01:23:38,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 01:23:38,851 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:38,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 01:23:38,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-07-21 01:23:38,852 INFO L87 Difference]: Start difference. First operand 1626 states and 2092 transitions. Second operand 10 states. [2020-07-21 01:23:40,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:40,414 INFO L93 Difference]: Finished difference Result 4464 states and 6134 transitions. [2020-07-21 01:23:40,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-21 01:23:40,415 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 174 [2020-07-21 01:23:40,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:40,432 INFO L225 Difference]: With dead ends: 4464 [2020-07-21 01:23:40,432 INFO L226 Difference]: Without dead ends: 2751 [2020-07-21 01:23:40,439 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=149, Unknown=0, NotChecked=0, Total=240 [2020-07-21 01:23:40,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2751 states. [2020-07-21 01:23:40,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2751 to 2706. [2020-07-21 01:23:40,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2706 states. [2020-07-21 01:23:40,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2706 states to 2706 states and 3396 transitions. [2020-07-21 01:23:40,538 INFO L78 Accepts]: Start accepts. Automaton has 2706 states and 3396 transitions. Word has length 174 [2020-07-21 01:23:40,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:40,540 INFO L479 AbstractCegarLoop]: Abstraction has 2706 states and 3396 transitions. [2020-07-21 01:23:40,540 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 01:23:40,540 INFO L276 IsEmpty]: Start isEmpty. Operand 2706 states and 3396 transitions. [2020-07-21 01:23:40,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-21 01:23:40,556 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:40,557 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 01:23:40,771 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:40,772 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:40,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:40,772 INFO L82 PathProgramCache]: Analyzing trace with hash 308097886, now seen corresponding path program 1 times [2020-07-21 01:23:40,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:40,773 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [170002343] [2020-07-21 01:23:40,773 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 [2020-07-21 01:23:40,861 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:23:40,861 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:40,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:23:40,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:40,903 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 01:23:40,904 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:40,976 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 01:23:40,977 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [170002343] [2020-07-21 01:23:40,977 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:40,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 01:23:40,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598674209] [2020-07-21 01:23:40,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:23:40,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:40,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:23:40,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:23:40,984 INFO L87 Difference]: Start difference. First operand 2706 states and 3396 transitions. Second operand 6 states. [2020-07-21 01:23:42,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:42,060 INFO L93 Difference]: Finished difference Result 6661 states and 8727 transitions. [2020-07-21 01:23:42,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:23:42,061 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 177 [2020-07-21 01:23:42,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:42,093 INFO L225 Difference]: With dead ends: 6661 [2020-07-21 01:23:42,093 INFO L226 Difference]: Without dead ends: 3961 [2020-07-21 01:23:42,106 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 350 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:23:42,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3961 states. [2020-07-21 01:23:42,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3961 to 3894. [2020-07-21 01:23:42,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3894 states. [2020-07-21 01:23:42,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3894 states to 3894 states and 4817 transitions. [2020-07-21 01:23:42,350 INFO L78 Accepts]: Start accepts. Automaton has 3894 states and 4817 transitions. Word has length 177 [2020-07-21 01:23:42,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:42,350 INFO L479 AbstractCegarLoop]: Abstraction has 3894 states and 4817 transitions. [2020-07-21 01:23:42,350 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:23:42,350 INFO L276 IsEmpty]: Start isEmpty. Operand 3894 states and 4817 transitions. [2020-07-21 01:23:42,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-07-21 01:23:42,362 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:42,362 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 01:23:42,577 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:42,578 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:42,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:42,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1391741998, now seen corresponding path program 1 times [2020-07-21 01:23:42,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:42,580 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1744806063] [2020-07-21 01:23:42,580 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 [2020-07-21 01:23:42,667 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:23:42,667 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:42,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:23:42,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:42,712 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:42,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:42,784 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:23:42,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1744806063] [2020-07-21 01:23:42,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:42,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:23:42,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141528939] [2020-07-21 01:23:42,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:23:42,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:42,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:23:42,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:23:42,789 INFO L87 Difference]: Start difference. First operand 3894 states and 4817 transitions. Second operand 7 states. [2020-07-21 01:23:44,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:44,101 INFO L93 Difference]: Finished difference Result 8237 states and 10207 transitions. [2020-07-21 01:23:44,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 01:23:44,102 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 194 [2020-07-21 01:23:44,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:44,120 INFO L225 Difference]: With dead ends: 8237 [2020-07-21 01:23:44,120 INFO L226 Difference]: Without dead ends: 4039 [2020-07-21 01:23:44,130 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 383 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:23:44,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4039 states. [2020-07-21 01:23:44,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4039 to 4022. [2020-07-21 01:23:44,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4022 states. [2020-07-21 01:23:44,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4022 states to 4022 states and 4490 transitions. [2020-07-21 01:23:44,236 INFO L78 Accepts]: Start accepts. Automaton has 4022 states and 4490 transitions. Word has length 194 [2020-07-21 01:23:44,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:44,237 INFO L479 AbstractCegarLoop]: Abstraction has 4022 states and 4490 transitions. [2020-07-21 01:23:44,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:23:44,237 INFO L276 IsEmpty]: Start isEmpty. Operand 4022 states and 4490 transitions. [2020-07-21 01:23:44,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-07-21 01:23:44,248 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:44,248 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 01:23:44,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:44,464 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:44,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:44,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1182492955, now seen corresponding path program 1 times [2020-07-21 01:23:44,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:44,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [781896350] [2020-07-21 01:23:44,466 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 [2020-07-21 01:23:44,583 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:23:44,583 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:44,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:23:44,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:44,648 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 181 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-07-21 01:23:44,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:44,752 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 152 proven. 36 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-07-21 01:23:44,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [781896350] [2020-07-21 01:23:44,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:44,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 01:23:44,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769041231] [2020-07-21 01:23:44,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:23:44,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:44,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:23:44,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:23:44,755 INFO L87 Difference]: Start difference. First operand 4022 states and 4490 transitions. Second operand 6 states. [2020-07-21 01:23:45,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:45,939 INFO L93 Difference]: Finished difference Result 8751 states and 9930 transitions. [2020-07-21 01:23:45,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:23:45,940 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 252 [2020-07-21 01:23:45,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:45,954 INFO L225 Difference]: With dead ends: 8751 [2020-07-21 01:23:45,954 INFO L226 Difference]: Without dead ends: 3251 [2020-07-21 01:23:45,966 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 500 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:23:45,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3251 states. [2020-07-21 01:23:46,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3251 to 3092. [2020-07-21 01:23:46,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3092 states. [2020-07-21 01:23:46,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3092 states to 3092 states and 3387 transitions. [2020-07-21 01:23:46,041 INFO L78 Accepts]: Start accepts. Automaton has 3092 states and 3387 transitions. Word has length 252 [2020-07-21 01:23:46,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:46,041 INFO L479 AbstractCegarLoop]: Abstraction has 3092 states and 3387 transitions. [2020-07-21 01:23:46,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:23:46,042 INFO L276 IsEmpty]: Start isEmpty. Operand 3092 states and 3387 transitions. [2020-07-21 01:23:46,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2020-07-21 01:23:46,052 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:46,052 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2020-07-21 01:23:46,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:46,266 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:46,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:46,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1319946775, now seen corresponding path program 1 times [2020-07-21 01:23:46,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:46,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1834392076] [2020-07-21 01:23:46,268 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 [2020-07-21 01:23:46,401 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:23:46,401 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:46,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:23:46,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:46,471 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 246 proven. 2 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2020-07-21 01:23:46,471 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:46,593 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 178 proven. 72 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-07-21 01:23:46,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1834392076] [2020-07-21 01:23:46,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:46,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 01:23:46,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657840730] [2020-07-21 01:23:46,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:23:46,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:46,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:23:46,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:23:46,596 INFO L87 Difference]: Start difference. First operand 3092 states and 3387 transitions. Second operand 6 states. [2020-07-21 01:23:47,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:47,462 INFO L93 Difference]: Finished difference Result 6785 states and 7567 transitions. [2020-07-21 01:23:47,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:23:47,463 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 282 [2020-07-21 01:23:47,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:47,478 INFO L225 Difference]: With dead ends: 6785 [2020-07-21 01:23:47,479 INFO L226 Difference]: Without dead ends: 3699 [2020-07-21 01:23:47,485 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 569 GetRequests, 560 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:23:47,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3699 states. [2020-07-21 01:23:47,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3699 to 3684. [2020-07-21 01:23:47,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3684 states. [2020-07-21 01:23:47,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3684 states to 3684 states and 4071 transitions. [2020-07-21 01:23:47,557 INFO L78 Accepts]: Start accepts. Automaton has 3684 states and 4071 transitions. Word has length 282 [2020-07-21 01:23:47,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:47,557 INFO L479 AbstractCegarLoop]: Abstraction has 3684 states and 4071 transitions. [2020-07-21 01:23:47,558 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:23:47,558 INFO L276 IsEmpty]: Start isEmpty. Operand 3684 states and 4071 transitions. [2020-07-21 01:23:47,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2020-07-21 01:23:47,569 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:47,569 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:23:47,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:47,785 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:47,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:47,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1846107314, now seen corresponding path program 1 times [2020-07-21 01:23:47,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:47,786 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [52313935] [2020-07-21 01:23:47,786 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:47,929 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:23:47,929 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:47,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:23:47,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:47,993 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 252 proven. 2 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-07-21 01:23:47,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:48,169 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 200 proven. 56 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-07-21 01:23:48,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [52313935] [2020-07-21 01:23:48,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:48,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:23:48,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088849669] [2020-07-21 01:23:48,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:23:48,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:48,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:23:48,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:23:48,173 INFO L87 Difference]: Start difference. First operand 3684 states and 4071 transitions. Second operand 7 states. [2020-07-21 01:23:49,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:49,067 INFO L93 Difference]: Finished difference Result 7094 states and 7872 transitions. [2020-07-21 01:23:49,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:23:49,070 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 303 [2020-07-21 01:23:49,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:49,083 INFO L225 Difference]: With dead ends: 7094 [2020-07-21 01:23:49,083 INFO L226 Difference]: Without dead ends: 3258 [2020-07-21 01:23:49,091 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 609 GetRequests, 602 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:23:49,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3258 states. [2020-07-21 01:23:49,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3258 to 3244. [2020-07-21 01:23:49,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3244 states. [2020-07-21 01:23:49,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3244 states to 3244 states and 3521 transitions. [2020-07-21 01:23:49,152 INFO L78 Accepts]: Start accepts. Automaton has 3244 states and 3521 transitions. Word has length 303 [2020-07-21 01:23:49,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:49,153 INFO L479 AbstractCegarLoop]: Abstraction has 3244 states and 3521 transitions. [2020-07-21 01:23:49,153 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:23:49,153 INFO L276 IsEmpty]: Start isEmpty. Operand 3244 states and 3521 transitions. [2020-07-21 01:23:49,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2020-07-21 01:23:49,164 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:49,164 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-07-21 01:23:49,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:49,379 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:49,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:49,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1171345107, now seen corresponding path program 1 times [2020-07-21 01:23:49,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:49,380 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1182858158] [2020-07-21 01:23:49,381 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:49,507 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:23:49,508 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:49,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:23:49,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:49,562 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 280 proven. 2 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2020-07-21 01:23:49,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:49,717 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 216 proven. 10 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2020-07-21 01:23:49,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1182858158] [2020-07-21 01:23:49,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:49,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:23:49,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840560041] [2020-07-21 01:23:49,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:23:49,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:49,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:23:49,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:23:49,719 INFO L87 Difference]: Start difference. First operand 3244 states and 3521 transitions. Second operand 7 states. [2020-07-21 01:23:50,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:50,202 INFO L93 Difference]: Finished difference Result 5410 states and 5873 transitions. [2020-07-21 01:23:50,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 01:23:50,202 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 305 [2020-07-21 01:23:50,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:50,213 INFO L225 Difference]: With dead ends: 5410 [2020-07-21 01:23:50,213 INFO L226 Difference]: Without dead ends: 2615 [2020-07-21 01:23:50,218 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 611 GetRequests, 604 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 01:23:50,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2615 states. [2020-07-21 01:23:50,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2615 to 2605. [2020-07-21 01:23:50,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2605 states. [2020-07-21 01:23:50,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2605 states to 2605 states and 2779 transitions. [2020-07-21 01:23:50,266 INFO L78 Accepts]: Start accepts. Automaton has 2605 states and 2779 transitions. Word has length 305 [2020-07-21 01:23:50,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:50,267 INFO L479 AbstractCegarLoop]: Abstraction has 2605 states and 2779 transitions. [2020-07-21 01:23:50,267 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:23:50,267 INFO L276 IsEmpty]: Start isEmpty. Operand 2605 states and 2779 transitions. [2020-07-21 01:23:50,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2020-07-21 01:23:50,276 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:50,277 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:23:50,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:50,491 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:50,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:50,491 INFO L82 PathProgramCache]: Analyzing trace with hash -698539143, now seen corresponding path program 1 times [2020-07-21 01:23:50,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:50,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1093516588] [2020-07-21 01:23:50,492 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:50,631 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:23:50,631 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:50,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 17 conjunts are in the unsatisfiable core [2020-07-21 01:23:50,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:50,695 INFO L501 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-07-21 01:23:50,695 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:23:50,816 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 332 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-21 01:23:50,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:50,965 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-07-21 01:23:50,965 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:23:51,158 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 266 proven. 36 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2020-07-21 01:23:51,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1093516588] [2020-07-21 01:23:51,159 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:51,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 13 [2020-07-21 01:23:51,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787584299] [2020-07-21 01:23:51,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-21 01:23:51,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:51,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-21 01:23:51,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-07-21 01:23:51,162 INFO L87 Difference]: Start difference. First operand 2605 states and 2779 transitions. Second operand 13 states. [2020-07-21 01:23:52,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:52,269 INFO L93 Difference]: Finished difference Result 3810 states and 4057 transitions. [2020-07-21 01:23:52,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-21 01:23:52,270 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 315 [2020-07-21 01:23:52,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:52,278 INFO L225 Difference]: With dead ends: 3810 [2020-07-21 01:23:52,278 INFO L226 Difference]: Without dead ends: 2603 [2020-07-21 01:23:52,281 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 640 GetRequests, 623 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2020-07-21 01:23:52,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2603 states. [2020-07-21 01:23:52,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2603 to 2601. [2020-07-21 01:23:52,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2601 states. [2020-07-21 01:23:52,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2601 states to 2601 states and 2772 transitions. [2020-07-21 01:23:52,327 INFO L78 Accepts]: Start accepts. Automaton has 2601 states and 2772 transitions. Word has length 315 [2020-07-21 01:23:52,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:52,328 INFO L479 AbstractCegarLoop]: Abstraction has 2601 states and 2772 transitions. [2020-07-21 01:23:52,328 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-21 01:23:52,328 INFO L276 IsEmpty]: Start isEmpty. Operand 2601 states and 2772 transitions. [2020-07-21 01:23:52,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-07-21 01:23:52,335 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:52,335 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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] [2020-07-21 01:23:52,549 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:52,550 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:52,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:52,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1648530112, now seen corresponding path program 1 times [2020-07-21 01:23:52,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:52,551 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [303682545] [2020-07-21 01:23:52,551 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:52,692 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:23:52,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:52,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:23:52,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:52,792 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 357 proven. 2 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2020-07-21 01:23:52,793 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:52,908 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 245 proven. 26 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-07-21 01:23:52,909 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [303682545] [2020-07-21 01:23:52,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:52,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:23:52,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730274671] [2020-07-21 01:23:52,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:23:52,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:52,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:23:52,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:23:52,911 INFO L87 Difference]: Start difference. First operand 2601 states and 2772 transitions. Second operand 7 states. [2020-07-21 01:23:53,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:53,615 INFO L93 Difference]: Finished difference Result 4718 states and 5034 transitions. [2020-07-21 01:23:53,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:23:53,615 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 327 [2020-07-21 01:23:53,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:53,632 INFO L225 Difference]: With dead ends: 4718 [2020-07-21 01:23:53,633 INFO L226 Difference]: Without dead ends: 2617 [2020-07-21 01:23:53,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 650 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:23:53,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2617 states. [2020-07-21 01:23:53,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2617 to 2299. [2020-07-21 01:23:53,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2299 states. [2020-07-21 01:23:53,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 2435 transitions. [2020-07-21 01:23:53,681 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 2435 transitions. Word has length 327 [2020-07-21 01:23:53,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:53,681 INFO L479 AbstractCegarLoop]: Abstraction has 2299 states and 2435 transitions. [2020-07-21 01:23:53,681 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:23:53,681 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 2435 transitions. [2020-07-21 01:23:53,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2020-07-21 01:23:53,688 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:23:53,688 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:23:53,901 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:53,902 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:23:53,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:23:53,902 INFO L82 PathProgramCache]: Analyzing trace with hash -722913179, now seen corresponding path program 1 times [2020-07-21 01:23:53,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:23:53,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1445680011] [2020-07-21 01:23:53,903 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:54,074 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:23:54,075 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:23:54,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:23:54,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:23:54,165 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 361 proven. 2 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2020-07-21 01:23:54,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:23:54,326 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 289 proven. 32 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2020-07-21 01:23:54,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1445680011] [2020-07-21 01:23:54,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:23:54,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:23:54,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464888649] [2020-07-21 01:23:54,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:23:54,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:23:54,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:23:54,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:23:54,328 INFO L87 Difference]: Start difference. First operand 2299 states and 2435 transitions. Second operand 7 states. [2020-07-21 01:23:55,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:23:55,114 INFO L93 Difference]: Finished difference Result 2735 states and 2906 transitions. [2020-07-21 01:23:55,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:23:55,114 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 342 [2020-07-21 01:23:55,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:23:55,115 INFO L225 Difference]: With dead ends: 2735 [2020-07-21 01:23:55,115 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:23:55,120 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 687 GetRequests, 680 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:23:55,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:23:55,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:23:55,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:23:55,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:23:55,121 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 342 [2020-07-21 01:23:55,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:23:55,121 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:23:55,121 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:23:55,121 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:23:55,121 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:23:55,333 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:55,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:23:55,933 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 145 [2020-07-21 01:23:56,102 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 156 [2020-07-21 01:23:57,575 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 169 DAG size of output: 104 [2020-07-21 01:23:58,312 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 68 [2020-07-21 01:23:58,986 WARN L193 SmtUtils]: Spent 671.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 68 [2020-07-21 01:23:58,990 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:23:58,990 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a11~0 |old(~a11~0)|) (or (not (= 1 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (not (= 1 ~a21~0)) (= 8 ~a17~0)) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 01:23:58,990 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:23:58,991 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:58,991 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:58,991 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:58,991 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:58,991 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:58,992 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 01:23:58,992 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 01:23:58,992 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 01:23:58,992 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 01:23:58,992 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 01:23:58,992 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 01:23:58,993 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 01:23:58,993 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 01:23:58,993 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 01:23:58,993 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 01:23:58,993 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 01:23:58,993 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 01:23:58,994 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 01:23:58,994 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:58,994 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:58,994 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:58,994 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:58,994 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 01:23:58,994 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:58,994 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 01:23:58,995 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 01:23:58,995 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 01:23:58,995 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 01:23:58,995 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 01:23:58,995 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 01:23:58,995 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 01:23:58,995 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 01:23:58,995 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 01:23:58,996 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 01:23:58,996 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 01:23:58,996 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 01:23:58,996 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 01:23:58,996 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 01:23:58,996 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 01:23:58,996 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:58,996 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:58,997 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:58,997 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:58,997 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:58,997 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 550) no Hoare annotation was computed. [2020-07-21 01:23:58,997 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 01:23:58,997 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 01:23:58,997 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 01:23:58,997 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 01:23:58,998 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 01:23:58,998 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 01:23:58,998 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 01:23:58,998 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 01:23:58,998 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 01:23:58,998 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 01:23:58,998 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 01:23:58,998 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:58,998 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:58,999 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:58,999 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:58,999 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:58,999 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 01:23:58,999 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 01:23:58,999 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 01:23:58,999 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 01:23:58,999 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 01:23:59,000 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 01:23:59,000 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 01:23:59,000 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 01:23:59,000 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 01:23:59,000 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 01:23:59,000 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 01:23:59,000 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 01:23:59,000 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 01:23:59,000 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,001 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,001 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,001 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,001 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,001 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 01:23:59,001 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 01:23:59,001 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 01:23:59,001 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 01:23:59,001 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 01:23:59,002 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 01:23:59,002 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 01:23:59,002 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 01:23:59,002 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 01:23:59,002 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 01:23:59,002 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 01:23:59,002 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 01:23:59,002 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 01:23:59,002 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 01:23:59,003 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 01:23:59,003 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 01:23:59,003 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,003 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,003 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,003 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,003 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 01:23:59,003 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,004 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 01:23:59,004 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,004 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 01:23:59,004 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 01:23:59,004 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 01:23:59,004 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,004 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,004 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 01:23:59,004 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 01:23:59,005 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 01:23:59,005 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 01:23:59,005 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 01:23:59,005 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 01:23:59,005 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 01:23:59,005 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 01:23:59,005 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 01:23:59,005 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 01:23:59,005 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 01:23:59,005 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,006 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,006 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,006 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,006 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,006 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,006 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 01:23:59,006 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 01:23:59,006 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 01:23:59,006 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 01:23:59,007 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 01:23:59,007 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 01:23:59,007 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 01:23:59,007 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 01:23:59,007 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 01:23:59,007 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 01:23:59,007 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 01:23:59,007 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,007 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,007 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,007 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,008 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,008 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,008 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 01:23:59,008 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 01:23:59,008 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 01:23:59,008 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 01:23:59,008 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 01:23:59,008 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 01:23:59,008 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 01:23:59,008 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 01:23:59,008 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 01:23:59,008 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 01:23:59,008 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 01:23:59,009 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 01:23:59,009 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 01:23:59,009 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 01:23:59,009 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,009 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,009 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,009 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse4 (= ~a11~0 |old(~a11~0)|)) (.cse12 (= ~a17~0 |old(~a17~0)|)) (.cse5 (= ~a19~0 |old(~a19~0)|)) (.cse6 (= ~a28~0 |old(~a28~0)|)) (.cse8 (= 1 ~a25~0)) (.cse2 (= 1 |old(~a11~0)|))) (let ((.cse20 (not (<= 10 |old(~a28~0)|))) (.cse23 (not (< |old(~a28~0)| 11))) (.cse18 (= 1 ~a11~0)) (.cse7 (= 8 ~a17~0)) (.cse19 (not .cse2)) (.cse16 (not (<= |old(~a25~0)| 0))) (.cse15 (not (<= |old(~a17~0)| 7))) (.cse11 (<= ~a28~0 |old(~a28~0)|)) (.cse24 (or (<= ~a11~0 0) (< 0 |old(~a11~0)|))) (.cse13 (<= |old(~a28~0)| ~a28~0)) (.cse14 (= ~a25~0 |old(~a25~0)|)) (.cse25 (<= ~a11~0 |old(~a11~0)|)) (.cse1 (not (= 8 |old(~a17~0)|))) (.cse0 (not (= 1 |old(~a19~0)|))) (.cse10 (not (<= |old(~a28~0)| 9))) (.cse3 (not (= 1 |old(~a25~0)|))) (.cse21 (and .cse4 .cse12 .cse5 .cse6 .cse8)) (.cse17 (not (<= |old(~a17~0)| 8))) (.cse9 (not (= 1 ~a21~0))) (.cse22 (not (<= |old(~a11~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (<= 11 |old(~a28~0)|)) (and .cse4 .cse5 .cse6 .cse7 .cse8) .cse9) (or .cse10 (and .cse11 .cse12 .cse5 .cse13 .cse14) .cse15 .cse9) (or .cse10 .cse16 .cse17 .cse9 (and .cse18 .cse12 .cse5 .cse6 .cse14) .cse19) (or .cse3 .cse20 .cse21 .cse17 .cse9 .cse22 .cse23) (or .cse0 .cse1 .cse20 (and .cse11 .cse24 .cse5 .cse7 .cse13 .cse14) .cse9 .cse23) (or .cse15 (and .cse25 .cse11 .cse12 .cse5 .cse13 .cse14) .cse9 .cse22 .cse23) (or .cse0 .cse1 (and .cse18 (= 9 ~a28~0) .cse5 .cse7 .cse8) .cse3 .cse9 (not (= 9 |old(~a28~0)|)) .cse19) (or .cse10 .cse16 (and .cse4 .cse12 .cse5 .cse6 .cse14) .cse17 .cse9 .cse22) (or (and .cse25 .cse11 .cse12 .cse5 .cse13 .cse8) .cse3 .cse15 .cse9 .cse22) (or .cse16 .cse15 (and .cse11 .cse24 .cse12 .cse5 .cse13 .cse14) .cse9) (or .cse0 .cse25 (not (= 10 |old(~a28~0)|)) .cse1 (and (not (= 6 |calculate_output_#in~input|)) (not (= 1 |calculate_output_#in~input|)) (not (= 4 |calculate_output_#in~input|)) (not (= 5 |calculate_output_#in~input|)) (not (= 3 |calculate_output_#in~input|))) .cse9 .cse22) (or .cse0 .cse10 .cse3 .cse21 .cse17 .cse9 .cse22)))) [2020-07-21 01:23:59,009 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,009 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,009 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,009 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 01:23:59,010 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 01:23:59,010 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 01:23:59,010 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 01:23:59,010 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 01:23:59,010 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 01:23:59,010 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 01:23:59,010 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 01:23:59,010 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 01:23:59,010 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 01:23:59,010 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 01:23:59,010 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 01:23:59,010 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 01:23:59,010 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,010 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,010 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,011 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,011 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,011 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,011 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 01:23:59,011 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 01:23:59,011 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 01:23:59,011 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 01:23:59,011 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 01:23:59,011 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 01:23:59,011 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 01:23:59,011 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 01:23:59,011 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 01:23:59,011 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 01:23:59,011 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 01:23:59,011 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 01:23:59,011 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 01:23:59,012 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 01:23:59,012 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 01:23:59,012 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 01:23:59,012 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,012 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,012 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,012 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,012 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:23:59,012 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 01:23:59,012 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 01:23:59,012 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 01:23:59,012 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 01:23:59,012 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 01:23:59,012 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 01:23:59,012 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 01:23:59,013 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 01:23:59,013 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 01:23:59,013 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 01:23:59,013 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 01:23:59,013 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 01:23:59,013 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 01:23:59,013 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 01:23:59,013 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 01:23:59,013 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 01:23:59,013 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 01:23:59,013 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 01:23:59,013 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 01:23:59,013 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:23:59,013 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a25~0 0) (= 7 ~a28~0) (= 1 ~a21~0) (= 8 ~a17~0)) [2020-07-21 01:23:59,013 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:23:59,014 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:23:59,014 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (not (= 7 |old(~a28~0)|)) (not (= 1 ~a21~0)) (and (= ~a11~0 |old(~a11~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a28~0 |old(~a28~0)|) (= 8 ~a17~0) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a11~0)| 0))) [2020-07-21 01:23:59,014 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse4 (= 1 ~a25~0))) (let ((.cse9 (or (< 9 ~a28~0) (not .cse4))) (.cse10 (< 8 ~a28~0)) (.cse12 (or (and (= 1 |old(~a25~0)|) (<= |old(~a28~0)| 9)) (<= |old(~a28~0)| 8))) (.cse5 (= ~a11~0 |old(~a11~0)|)) (.cse1 (<= ~a11~0 0)) (.cse8 (<= ~a17~0 7)) (.cse0 (= 1 ~a19~0)) (.cse11 (< ~a28~0 11)) (.cse3 (= 8 ~a17~0)) (.cse13 (= 1 ~a11~0)) (.cse6 (<= ~a17~0 8)) (.cse2 (<= ~a28~0 9)) (.cse7 (<= ~a25~0 0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 (<= 9 ~a28~0) .cse4) (not (= 7 |old(~a28~0)|)) (and .cse5 .cse6 .cse2 .cse7) (and .cse7 .cse8) (and .cse2 .cse8) (and .cse9 .cse10 .cse1 .cse8 .cse11 .cse12) (and .cse9 .cse10 .cse1 .cse5 .cse6 .cse11 .cse12 .cse4) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse5 .cse3 .cse4) (and .cse0 .cse13 (= 9 ~a28~0) .cse3 .cse4) (not (= 8 |old(~a17~0)|)) (and .cse1 .cse8 .cse4) (not (<= |old(~a25~0)| 0)) (and .cse0 .cse11 (<= 10 ~a28~0) .cse3) (and .cse13 .cse6 .cse2 .cse7)))) [2020-07-21 01:23:59,014 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 01:23:59,014 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 01:23:59,014 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse4 (= 1 ~a25~0))) (let ((.cse9 (or (< 9 ~a28~0) (not .cse4))) (.cse10 (< 8 ~a28~0)) (.cse12 (or (and (= 1 |old(~a25~0)|) (<= |old(~a28~0)| 9)) (<= |old(~a28~0)| 8))) (.cse5 (= ~a11~0 |old(~a11~0)|)) (.cse1 (<= ~a11~0 0)) (.cse8 (<= ~a17~0 7)) (.cse0 (= 1 ~a19~0)) (.cse11 (< ~a28~0 11)) (.cse3 (= 8 ~a17~0)) (.cse13 (= 1 ~a11~0)) (.cse6 (<= ~a17~0 8)) (.cse2 (<= ~a28~0 9)) (.cse7 (<= ~a25~0 0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 (<= 9 ~a28~0) .cse4) (not (= 7 |old(~a28~0)|)) (and .cse5 .cse6 .cse2 .cse7) (and .cse7 .cse8) (and .cse2 .cse8) (and .cse9 .cse10 .cse1 .cse8 .cse11 .cse12) (and .cse9 .cse10 .cse1 .cse5 .cse6 .cse11 .cse12 .cse4) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse5 .cse3 .cse4) (and .cse0 .cse13 (= 9 ~a28~0) .cse3 .cse4) (not (= 8 |old(~a17~0)|)) (and .cse1 .cse8 .cse4) (not (<= |old(~a25~0)| 0)) (and .cse0 .cse11 (<= 10 ~a28~0) .cse3) (and .cse13 .cse6 .cse2 .cse7)))) [2020-07-21 01:23:59,014 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 01:23:59,014 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 01:23:59,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:23:59 BoogieIcfgContainer [2020-07-21 01:23:59,036 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:23:59,037 INFO L168 Benchmark]: Toolchain (without parser) took 34150.56 ms. Allocated memory was 137.9 MB in the beginning and 777.0 MB in the end (delta: 639.1 MB). Free memory was 101.3 MB in the beginning and 462.5 MB in the end (delta: -361.2 MB). Peak memory consumption was 608.4 MB. Max. memory is 7.1 GB. [2020-07-21 01:23:59,038 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-21 01:23:59,042 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.57 ms. Allocated memory was 137.9 MB in the beginning and 203.9 MB in the end (delta: 66.1 MB). Free memory was 100.9 MB in the beginning and 171.4 MB in the end (delta: -70.6 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. [2020-07-21 01:23:59,042 INFO L168 Benchmark]: Boogie Preprocessor took 114.56 ms. Allocated memory is still 203.9 MB. Free memory was 171.4 MB in the beginning and 166.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 01:23:59,043 INFO L168 Benchmark]: RCFGBuilder took 1164.38 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 166.4 MB in the beginning and 182.1 MB in the end (delta: -15.7 MB). Peak memory consumption was 84.2 MB. Max. memory is 7.1 GB. [2020-07-21 01:23:59,044 INFO L168 Benchmark]: TraceAbstraction took 32160.82 ms. Allocated memory was 236.5 MB in the beginning and 777.0 MB in the end (delta: 540.5 MB). Free memory was 182.1 MB in the beginning and 462.5 MB in the end (delta: -280.4 MB). Peak memory consumption was 590.7 MB. Max. memory is 7.1 GB. [2020-07-21 01:23:59,047 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 704.57 ms. Allocated memory was 137.9 MB in the beginning and 203.9 MB in the end (delta: 66.1 MB). Free memory was 100.9 MB in the beginning and 171.4 MB in the end (delta: -70.6 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.56 ms. Allocated memory is still 203.9 MB. Free memory was 171.4 MB in the beginning and 166.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1164.38 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 166.4 MB in the beginning and 182.1 MB in the end (delta: -15.7 MB). Peak memory consumption was 84.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 32160.82 ms. Allocated memory was 236.5 MB in the beginning and 777.0 MB in the end (delta: 540.5 MB). Free memory was 182.1 MB in the beginning and 462.5 MB in the end (delta: -280.4 MB). Peak memory consumption was 590.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 550]: 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 && a11 <= 0) && a28 <= 9) && 8 == a17) && 9 <= a28) && 1 == a25)) || !(7 == \old(a28))) || (((a11 == \old(a11) && a17 <= 8) && a28 <= 9) && a25 <= 0)) || (a25 <= 0 && a17 <= 7)) || (a28 <= 9 && a17 <= 7)) || ((((((9 < a28 || !(1 == a25)) && 8 < a28) && a11 <= 0) && a17 <= 7) && a28 < 11) && ((1 == \old(a25) && \old(a28) <= 9) || \old(a28) <= 8))) || ((((((((9 < a28 || !(1 == a25)) && 8 < a28) && a11 <= 0) && a11 == \old(a11)) && a17 <= 8) && a28 < 11) && ((1 == \old(a25) && \old(a28) <= 9) || \old(a28) <= 8)) && 1 == a25)) || !(1 == a21)) || !(\old(a11) <= 0)) || (((1 == a19 && a11 == \old(a11)) && 8 == a17) && 1 == a25)) || ((((1 == a19 && 1 == a11) && 9 == a28) && 8 == a17) && 1 == a25)) || !(8 == \old(a17))) || ((a11 <= 0 && a17 <= 7) && 1 == a25)) || !(\old(a25) <= 0)) || (((1 == a19 && a28 < 11) && 10 <= a28) && 8 == a17)) || (((1 == a11 && a17 <= 8) && a28 <= 9) && a25 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 28.3s, OverallIterations: 14, TraceHistogramMax: 7, AutomataDifference: 17.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1071 SDtfs, 8770 SDslu, 1046 SDs, 0 SdLazy, 12600 SolverSat, 2116 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6313 GetRequests, 6145 SyntacticMatches, 12 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 621 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4022occurred 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: 1.0s AutomataMinimizationTime, 14 MinimizatonAttempts, 718 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 224 PreInvPairs, 284 NumberOfFragments, 972 HoareAnnotationTreeSize, 224 FomulaSimplifications, 11449 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 11815 FormulaSimplificationTreeSizeReductionInter, 2.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 3264 NumberOfCodeBlocks, 1854 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 6203 ConstructedInterpolants, 0 QuantifiedInterpolants, 4601646 SizeOfPredicates, 57 NumberOfNonLiveVariables, 5895 ConjunctsInSsa, 202 ConjunctsInUnsatCore, 26 InterpolantComputations, 2 PerfectInterpolantSequences, 5740/6046 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...