/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 NUM_VARIABLES --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_label26.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 17:27:23,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 17:27:23,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 17:27:23,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-20 17:27:23,543 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 17:27:23,544 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 17:27:23,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 17:27:23,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 17:27:23,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 17:27:23,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 17:27:23,550 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 17:27:23,552 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 17:27:23,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 17:27:23,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 17:27:23,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 17:27:23,557 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 17:27:23,560 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 17:27:23,568 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 17:27:23,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 17:27:23,570 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 17:27:23,570 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 17:27:23,595 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 17:27:23,596 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 17:27:23,598 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 17:27:23,598 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 17:27:23,598 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 17:27:23,599 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 17:27:23,599 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 17:27:23,599 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 17:27:23,600 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 17:27:23,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 17:27:23,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 17:27:23,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 17:27:23,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 17:27:23,602 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 17:27:23,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 17:27:23,603 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 17:27:23,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 17:27:23,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 17:27:23,603 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 17:27:23,603 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 17:27:23,604 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 17:27:23,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:27:23,604 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 17:27:23,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 17:27:23,605 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 17:27:23,605 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 17:27:23,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:23,605 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 17:27:23,606 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 17:27:23,606 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 -> NUM_VARIABLES 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 [2020-07-20 17:27:23,886 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 17:27:23,908 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 17:27:23,911 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 17:27:23,913 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 17:27:23,913 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 17:27:23,914 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label26.c [2020-07-20 17:27:23,991 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/511ca5c97/9c9de28607334f37bc2abf89294f111b/FLAG6801bd87b [2020-07-20 17:27:24,641 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 17:27:24,642 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label26.c [2020-07-20 17:27:24,659 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/511ca5c97/9c9de28607334f37bc2abf89294f111b/FLAG6801bd87b [2020-07-20 17:27:24,835 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/511ca5c97/9c9de28607334f37bc2abf89294f111b [2020-07-20 17:27:24,846 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 17:27:24,849 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 17:27:24,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 17:27:24,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 17:27:24,854 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 17:27:24,855 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:27:24" (1/1) ... [2020-07-20 17:27:24,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@422f3f21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:24, skipping insertion in model container [2020-07-20 17:27:24,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:27:24" (1/1) ... [2020-07-20 17:27:24,867 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 17:27:24,931 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 17:27:25,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:27:25,474 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 17:27:25,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:27:25,634 INFO L208 MainTranslator]: Completed translation [2020-07-20 17:27:25,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:25 WrapperNode [2020-07-20 17:27:25,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 17:27:25,637 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 17:27:25,637 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 17:27:25,637 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 17:27:25,652 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:25" (1/1) ... [2020-07-20 17:27:25,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:25" (1/1) ... [2020-07-20 17:27:25,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:25" (1/1) ... [2020-07-20 17:27:25,676 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:25" (1/1) ... [2020-07-20 17:27:25,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:25" (1/1) ... [2020-07-20 17:27:25,743 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:25" (1/1) ... [2020-07-20 17:27:25,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:25" (1/1) ... [2020-07-20 17:27:25,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 17:27:25,754 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 17:27:25,754 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 17:27:25,754 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 17:27:25,755 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:25" (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 [2020-07-20 17:27:25,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 17:27:25,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 17:27:25,833 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 17:27:25,833 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 17:27:25,833 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 17:27:25,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 17:27:25,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 17:27:25,834 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 17:27:25,834 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 17:27:25,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 17:27:25,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 17:27:26,984 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 17:27:26,985 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 17:27:26,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:27:26 BoogieIcfgContainer [2020-07-20 17:27:26,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 17:27:26,992 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 17:27:26,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 17:27:26,996 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 17:27:26,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:27:24" (1/3) ... [2020-07-20 17:27:26,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f0674c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:27:26, skipping insertion in model container [2020-07-20 17:27:26,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:25" (2/3) ... [2020-07-20 17:27:26,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f0674c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:27:26, skipping insertion in model container [2020-07-20 17:27:26,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:27:26" (3/3) ... [2020-07-20 17:27:27,000 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label26.c [2020-07-20 17:27:27,011 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 17:27:27,019 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 17:27:27,034 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 17:27:27,061 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 17:27:27,061 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 17:27:27,061 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 17:27:27,061 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 17:27:27,062 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 17:27:27,062 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 17:27:27,062 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 17:27:27,062 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 17:27:27,090 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-20 17:27:27,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-20 17:27:27,105 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:27,107 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:27:27,107 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:27,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:27,114 INFO L82 PathProgramCache]: Analyzing trace with hash 2085668238, now seen corresponding path program 1 times [2020-07-20 17:27:27,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:27,124 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1804872222] [2020-07-20 17:27:27,125 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 [2020-07-20 17:27:27,356 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:27,357 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:27,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 17:27:27,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:27,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:27:27,545 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:27:27,546 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1804872222] [2020-07-20 17:27:27,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:27:27,548 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:27:27,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503504683] [2020-07-20 17:27:27,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:27:27,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:27,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:27:27,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:27,578 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-20 17:27:28,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:28,461 INFO L93 Difference]: Finished difference Result 615 states and 1053 transitions. [2020-07-20 17:27:28,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:27:28,463 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-07-20 17:27:28,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:28,482 INFO L225 Difference]: With dead ends: 615 [2020-07-20 17:27:28,483 INFO L226 Difference]: Without dead ends: 317 [2020-07-20 17:27:28,489 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:28,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-20 17:27:28,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2020-07-20 17:27:28,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-07-20 17:27:28,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 478 transitions. [2020-07-20 17:27:28,568 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 478 transitions. Word has length 142 [2020-07-20 17:27:28,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:28,569 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 478 transitions. [2020-07-20 17:27:28,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:27:28,570 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 478 transitions. [2020-07-20 17:27:28,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-07-20 17:27:28,575 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:28,576 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:27:28,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:28,792 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:28,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:28,793 INFO L82 PathProgramCache]: Analyzing trace with hash -2119639181, now seen corresponding path program 1 times [2020-07-20 17:27:28,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:28,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1603757149] [2020-07-20 17:27:28,794 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 [2020-07-20 17:27:28,932 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:28,932 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:28,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:27:28,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:28,995 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:27:28,995 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:27:28,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1603757149] [2020-07-20 17:27:28,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:27:28,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:27:28,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964488353] [2020-07-20 17:27:28,998 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:27:28,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:28,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:27:28,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:29,000 INFO L87 Difference]: Start difference. First operand 317 states and 478 transitions. Second operand 3 states. [2020-07-20 17:27:29,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:29,714 INFO L93 Difference]: Finished difference Result 919 states and 1406 transitions. [2020-07-20 17:27:29,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:27:29,715 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2020-07-20 17:27:29,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:29,724 INFO L225 Difference]: With dead ends: 919 [2020-07-20 17:27:29,724 INFO L226 Difference]: Without dead ends: 608 [2020-07-20 17:27:29,726 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:29,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2020-07-20 17:27:29,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 462. [2020-07-20 17:27:29,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2020-07-20 17:27:29,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 642 transitions. [2020-07-20 17:27:29,758 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 642 transitions. Word has length 157 [2020-07-20 17:27:29,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:29,759 INFO L479 AbstractCegarLoop]: Abstraction has 462 states and 642 transitions. [2020-07-20 17:27:29,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:27:29,759 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 642 transitions. [2020-07-20 17:27:29,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-07-20 17:27:29,763 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:29,763 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:27:29,977 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:29,979 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:29,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:29,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1005880998, now seen corresponding path program 1 times [2020-07-20 17:27:29,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:29,981 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1598109948] [2020-07-20 17:27:29,982 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 [2020-07-20 17:27:30,091 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:30,091 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:30,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:27:30,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:30,150 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:27:30,151 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:27:30,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1598109948] [2020-07-20 17:27:30,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:27:30,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:27:30,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353264871] [2020-07-20 17:27:30,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:27:30,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:30,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:27:30,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:30,154 INFO L87 Difference]: Start difference. First operand 462 states and 642 transitions. Second operand 3 states. [2020-07-20 17:27:30,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:30,847 INFO L93 Difference]: Finished difference Result 1359 states and 1917 transitions. [2020-07-20 17:27:30,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:27:30,848 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2020-07-20 17:27:30,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:30,854 INFO L225 Difference]: With dead ends: 1359 [2020-07-20 17:27:30,854 INFO L226 Difference]: Without dead ends: 903 [2020-07-20 17:27:30,855 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:30,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2020-07-20 17:27:30,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 902. [2020-07-20 17:27:30,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 902 states. [2020-07-20 17:27:30,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1159 transitions. [2020-07-20 17:27:30,910 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1159 transitions. Word has length 164 [2020-07-20 17:27:30,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:30,910 INFO L479 AbstractCegarLoop]: Abstraction has 902 states and 1159 transitions. [2020-07-20 17:27:30,911 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:27:30,911 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1159 transitions. [2020-07-20 17:27:30,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-07-20 17:27:30,916 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:30,916 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:27:31,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:31,131 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:31,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:31,132 INFO L82 PathProgramCache]: Analyzing trace with hash -315093218, now seen corresponding path program 1 times [2020-07-20 17:27:31,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:31,133 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1216155430] [2020-07-20 17:27:31,133 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 [2020-07-20 17:27:31,236 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:31,236 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:31,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:27:31,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:31,288 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:27:31,288 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:27:31,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1216155430] [2020-07-20 17:27:31,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:27:31,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:27:31,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689404227] [2020-07-20 17:27:31,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:27:31,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:31,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:27:31,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:31,291 INFO L87 Difference]: Start difference. First operand 902 states and 1159 transitions. Second operand 3 states. [2020-07-20 17:27:31,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:31,972 INFO L93 Difference]: Finished difference Result 2236 states and 2978 transitions. [2020-07-20 17:27:31,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:27:31,973 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 168 [2020-07-20 17:27:31,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:31,986 INFO L225 Difference]: With dead ends: 2236 [2020-07-20 17:27:31,986 INFO L226 Difference]: Without dead ends: 1340 [2020-07-20 17:27:31,989 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:31,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2020-07-20 17:27:32,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1194. [2020-07-20 17:27:32,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-07-20 17:27:32,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 1490 transitions. [2020-07-20 17:27:32,052 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 1490 transitions. Word has length 168 [2020-07-20 17:27:32,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:32,053 INFO L479 AbstractCegarLoop]: Abstraction has 1194 states and 1490 transitions. [2020-07-20 17:27:32,053 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:27:32,054 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 1490 transitions. [2020-07-20 17:27:32,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-07-20 17:27:32,061 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:32,062 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:27:32,274 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:32,275 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:32,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:32,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1336045319, now seen corresponding path program 1 times [2020-07-20 17:27:32,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:32,277 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1928787496] [2020-07-20 17:27:32,277 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 [2020-07-20 17:27:32,383 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:32,383 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:32,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:27:32,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:32,440 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:27:32,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:27:32,577 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:27:32,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1928787496] [2020-07-20 17:27:32,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:27:32,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 17:27:32,578 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191943277] [2020-07-20 17:27:32,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 17:27:32,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:32,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 17:27:32,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:27:32,579 INFO L87 Difference]: Start difference. First operand 1194 states and 1490 transitions. Second operand 7 states. [2020-07-20 17:27:34,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:34,308 INFO L93 Difference]: Finished difference Result 3570 states and 4728 transitions. [2020-07-20 17:27:34,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 17:27:34,309 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2020-07-20 17:27:34,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:34,325 INFO L225 Difference]: With dead ends: 3570 [2020-07-20 17:27:34,326 INFO L226 Difference]: Without dead ends: 2382 [2020-07-20 17:27:34,333 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 357 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:27:34,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2382 states. [2020-07-20 17:27:34,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2382 to 2236. [2020-07-20 17:27:34,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2236 states. [2020-07-20 17:27:34,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2236 states to 2236 states and 2800 transitions. [2020-07-20 17:27:34,419 INFO L78 Accepts]: Start accepts. Automaton has 2236 states and 2800 transitions. Word has length 181 [2020-07-20 17:27:34,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:34,419 INFO L479 AbstractCegarLoop]: Abstraction has 2236 states and 2800 transitions. [2020-07-20 17:27:34,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 17:27:34,419 INFO L276 IsEmpty]: Start isEmpty. Operand 2236 states and 2800 transitions. [2020-07-20 17:27:34,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-07-20 17:27:34,431 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:34,432 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:27:34,645 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:34,646 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:34,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:34,647 INFO L82 PathProgramCache]: Analyzing trace with hash 441214513, now seen corresponding path program 1 times [2020-07-20 17:27:34,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:34,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [593153816] [2020-07-20 17:27:34,648 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 [2020-07-20 17:27:34,764 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:34,765 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:34,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:27:34,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:34,816 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:27:34,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:27:34,896 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:27:34,896 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [593153816] [2020-07-20 17:27:34,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:27:34,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 17:27:34,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535004934] [2020-07-20 17:27:34,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 17:27:34,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:34,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 17:27:34,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:27:34,909 INFO L87 Difference]: Start difference. First operand 2236 states and 2800 transitions. Second operand 7 states. [2020-07-20 17:27:35,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:35,925 INFO L93 Difference]: Finished difference Result 5225 states and 6791 transitions. [2020-07-20 17:27:35,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 17:27:35,926 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 193 [2020-07-20 17:27:35,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:35,942 INFO L225 Difference]: With dead ends: 5225 [2020-07-20 17:27:35,942 INFO L226 Difference]: Without dead ends: 2999 [2020-07-20 17:27:35,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 380 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:27:35,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2999 states. [2020-07-20 17:27:36,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2999 to 2270. [2020-07-20 17:27:36,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2270 states. [2020-07-20 17:27:36,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2270 states to 2270 states and 2867 transitions. [2020-07-20 17:27:36,028 INFO L78 Accepts]: Start accepts. Automaton has 2270 states and 2867 transitions. Word has length 193 [2020-07-20 17:27:36,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:36,028 INFO L479 AbstractCegarLoop]: Abstraction has 2270 states and 2867 transitions. [2020-07-20 17:27:36,028 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 17:27:36,028 INFO L276 IsEmpty]: Start isEmpty. Operand 2270 states and 2867 transitions. [2020-07-20 17:27:36,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-07-20 17:27:36,037 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:36,038 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:27:36,251 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:36,252 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:36,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:36,253 INFO L82 PathProgramCache]: Analyzing trace with hash 2102913996, now seen corresponding path program 1 times [2020-07-20 17:27:36,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:36,254 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [803950058] [2020-07-20 17:27:36,254 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 [2020-07-20 17:27:36,369 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:36,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:36,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:27:36,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:36,451 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-07-20 17:27:36,452 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:27:36,452 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [803950058] [2020-07-20 17:27:36,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:27:36,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:27:36,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111716690] [2020-07-20 17:27:36,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:27:36,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:36,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:27:36,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:36,453 INFO L87 Difference]: Start difference. First operand 2270 states and 2867 transitions. Second operand 3 states. [2020-07-20 17:27:37,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:37,013 INFO L93 Difference]: Finished difference Result 4100 states and 5144 transitions. [2020-07-20 17:27:37,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:27:37,018 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2020-07-20 17:27:37,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:37,028 INFO L225 Difference]: With dead ends: 4100 [2020-07-20 17:27:37,028 INFO L226 Difference]: Without dead ends: 2270 [2020-07-20 17:27:37,033 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:37,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2270 states. [2020-07-20 17:27:37,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2270 to 2124. [2020-07-20 17:27:37,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2124 states. [2020-07-20 17:27:37,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2124 states to 2124 states and 2561 transitions. [2020-07-20 17:27:37,089 INFO L78 Accepts]: Start accepts. Automaton has 2124 states and 2561 transitions. Word has length 201 [2020-07-20 17:27:37,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:37,089 INFO L479 AbstractCegarLoop]: Abstraction has 2124 states and 2561 transitions. [2020-07-20 17:27:37,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:27:37,090 INFO L276 IsEmpty]: Start isEmpty. Operand 2124 states and 2561 transitions. [2020-07-20 17:27:37,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-07-20 17:27:37,097 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:37,098 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:27:37,312 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:37,313 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:37,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:37,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1557426684, now seen corresponding path program 1 times [2020-07-20 17:27:37,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:37,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [515130481] [2020-07-20 17:27:37,314 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 [2020-07-20 17:27:37,444 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:37,444 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:37,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 17:27:37,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:37,498 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:27:37,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:27:37,609 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:27:37,609 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [515130481] [2020-07-20 17:27:37,609 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:27:37,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 17:27:37,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296155347] [2020-07-20 17:27:37,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:27:37,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:37,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:27:37,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:27:37,611 INFO L87 Difference]: Start difference. First operand 2124 states and 2561 transitions. Second operand 6 states. [2020-07-20 17:27:38,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:38,351 INFO L93 Difference]: Finished difference Result 4272 states and 5278 transitions. [2020-07-20 17:27:38,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:27:38,353 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 221 [2020-07-20 17:27:38,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:38,362 INFO L225 Difference]: With dead ends: 4272 [2020-07-20 17:27:38,363 INFO L226 Difference]: Without dead ends: 2158 [2020-07-20 17:27:38,369 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 438 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:27:38,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states. [2020-07-20 17:27:38,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 2128. [2020-07-20 17:27:38,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2128 states. [2020-07-20 17:27:38,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 2455 transitions. [2020-07-20 17:27:38,421 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 2455 transitions. Word has length 221 [2020-07-20 17:27:38,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:38,421 INFO L479 AbstractCegarLoop]: Abstraction has 2128 states and 2455 transitions. [2020-07-20 17:27:38,421 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:27:38,422 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 2455 transitions. [2020-07-20 17:27:38,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-07-20 17:27:38,429 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:38,429 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 17:27:38,645 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:38,646 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:38,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:38,646 INFO L82 PathProgramCache]: Analyzing trace with hash 1374694561, now seen corresponding path program 1 times [2020-07-20 17:27:38,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:38,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1754517259] [2020-07-20 17:27:38,648 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 [2020-07-20 17:27:38,789 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:38,789 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:38,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 17:27:38,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:38,890 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-07-20 17:27:38,891 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:27:38,891 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1754517259] [2020-07-20 17:27:38,891 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:27:38,892 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 17:27:38,892 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164263656] [2020-07-20 17:27:38,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 17:27:38,893 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:38,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 17:27:38,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:27:38,893 INFO L87 Difference]: Start difference. First operand 2128 states and 2455 transitions. Second operand 5 states. [2020-07-20 17:27:39,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:39,361 INFO L93 Difference]: Finished difference Result 4117 states and 4884 transitions. [2020-07-20 17:27:39,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 17:27:39,362 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 235 [2020-07-20 17:27:39,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:39,371 INFO L225 Difference]: With dead ends: 4117 [2020-07-20 17:27:39,371 INFO L226 Difference]: Without dead ends: 1999 [2020-07-20 17:27:39,377 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:27:39,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2020-07-20 17:27:39,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1961. [2020-07-20 17:27:39,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1961 states. [2020-07-20 17:27:39,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1961 states to 1961 states and 2198 transitions. [2020-07-20 17:27:39,425 INFO L78 Accepts]: Start accepts. Automaton has 1961 states and 2198 transitions. Word has length 235 [2020-07-20 17:27:39,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:39,425 INFO L479 AbstractCegarLoop]: Abstraction has 1961 states and 2198 transitions. [2020-07-20 17:27:39,425 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 17:27:39,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1961 states and 2198 transitions. [2020-07-20 17:27:39,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-07-20 17:27:39,433 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:39,433 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:27:39,647 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:39,648 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:39,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:39,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1537639004, now seen corresponding path program 1 times [2020-07-20 17:27:39,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:39,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [527243396] [2020-07-20 17:27:39,650 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 [2020-07-20 17:27:39,797 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:39,798 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:39,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:27:39,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:39,870 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 62 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-07-20 17:27:39,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:27:40,011 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 101 proven. 22 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-20 17:27:40,012 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [527243396] [2020-07-20 17:27:40,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:27:40,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 17:27:40,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773062903] [2020-07-20 17:27:40,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:27:40,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:40,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:27:40,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:27:40,014 INFO L87 Difference]: Start difference. First operand 1961 states and 2198 transitions. Second operand 6 states. [2020-07-20 17:27:40,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:40,768 INFO L93 Difference]: Finished difference Result 3484 states and 3879 transitions. [2020-07-20 17:27:40,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:27:40,768 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 243 [2020-07-20 17:27:40,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:40,775 INFO L225 Difference]: With dead ends: 3484 [2020-07-20 17:27:40,775 INFO L226 Difference]: Without dead ends: 1807 [2020-07-20 17:27:40,780 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 482 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:27:40,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2020-07-20 17:27:40,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1803. [2020-07-20 17:27:40,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1803 states. [2020-07-20 17:27:40,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1803 states to 1803 states and 1954 transitions. [2020-07-20 17:27:40,816 INFO L78 Accepts]: Start accepts. Automaton has 1803 states and 1954 transitions. Word has length 243 [2020-07-20 17:27:40,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:40,817 INFO L479 AbstractCegarLoop]: Abstraction has 1803 states and 1954 transitions. [2020-07-20 17:27:40,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:27:40,817 INFO L276 IsEmpty]: Start isEmpty. Operand 1803 states and 1954 transitions. [2020-07-20 17:27:40,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-07-20 17:27:40,824 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:40,826 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 17:27:41,041 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:41,042 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:41,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:41,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1660093140, now seen corresponding path program 1 times [2020-07-20 17:27:41,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:41,043 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2089430502] [2020-07-20 17:27:41,043 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 [2020-07-20 17:27:41,174 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:41,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:41,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:27:41,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:41,260 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 130 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 17:27:41,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:27:41,425 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 130 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 17:27:41,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2089430502] [2020-07-20 17:27:41,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:27:41,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 17:27:41,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504968906] [2020-07-20 17:27:41,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:27:41,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:41,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:27:41,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:27:41,429 INFO L87 Difference]: Start difference. First operand 1803 states and 1954 transitions. Second operand 6 states. [2020-07-20 17:27:42,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:42,345 INFO L93 Difference]: Finished difference Result 4188 states and 4550 transitions. [2020-07-20 17:27:42,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 17:27:42,346 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 247 [2020-07-20 17:27:42,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:42,353 INFO L225 Difference]: With dead ends: 4188 [2020-07-20 17:27:42,353 INFO L226 Difference]: Without dead ends: 1807 [2020-07-20 17:27:42,358 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 490 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:27:42,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2020-07-20 17:27:42,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1363. [2020-07-20 17:27:42,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1363 states. [2020-07-20 17:27:42,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 1441 transitions. [2020-07-20 17:27:42,394 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 1441 transitions. Word has length 247 [2020-07-20 17:27:42,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:42,395 INFO L479 AbstractCegarLoop]: Abstraction has 1363 states and 1441 transitions. [2020-07-20 17:27:42,395 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:27:42,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 1441 transitions. [2020-07-20 17:27:42,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2020-07-20 17:27:42,399 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:42,399 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:27:42,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:42,613 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:42,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:42,614 INFO L82 PathProgramCache]: Analyzing trace with hash 246093775, now seen corresponding path program 1 times [2020-07-20 17:27:42,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:42,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [728892260] [2020-07-20 17:27:42,615 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 [2020-07-20 17:27:42,753 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:42,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:42,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:27:42,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:42,812 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-07-20 17:27:42,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:27:42,940 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 165 proven. 36 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-07-20 17:27:42,940 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [728892260] [2020-07-20 17:27:42,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:27:42,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 17:27:42,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526673073] [2020-07-20 17:27:42,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:27:42,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:42,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:27:42,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:27:42,942 INFO L87 Difference]: Start difference. First operand 1363 states and 1441 transitions. Second operand 6 states. [2020-07-20 17:27:43,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:43,968 INFO L93 Difference]: Finished difference Result 2737 states and 2911 transitions. [2020-07-20 17:27:43,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 17:27:43,969 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 282 [2020-07-20 17:27:43,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:43,976 INFO L225 Difference]: With dead ends: 2737 [2020-07-20 17:27:43,976 INFO L226 Difference]: Without dead ends: 1380 [2020-07-20 17:27:43,980 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 [2020-07-20 17:27:43,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2020-07-20 17:27:44,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1367. [2020-07-20 17:27:44,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1367 states. [2020-07-20 17:27:44,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1429 transitions. [2020-07-20 17:27:44,018 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1429 transitions. Word has length 282 [2020-07-20 17:27:44,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:44,019 INFO L479 AbstractCegarLoop]: Abstraction has 1367 states and 1429 transitions. [2020-07-20 17:27:44,019 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:27:44,019 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1429 transitions. [2020-07-20 17:27:44,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2020-07-20 17:27:44,026 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:44,027 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:27:44,240 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:44,241 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:44,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:44,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1557581639, now seen corresponding path program 1 times [2020-07-20 17:27:44,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:44,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2042566640] [2020-07-20 17:27:44,243 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 [2020-07-20 17:27:44,411 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:44,411 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:44,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 17:27:44,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:44,521 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-07-20 17:27:44,522 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:27:44,522 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2042566640] [2020-07-20 17:27:44,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:27:44,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:27:44,523 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900552492] [2020-07-20 17:27:44,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:27:44,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:44,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:27:44,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:44,524 INFO L87 Difference]: Start difference. First operand 1367 states and 1429 transitions. Second operand 3 states. [2020-07-20 17:27:45,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:45,017 INFO L93 Difference]: Finished difference Result 3302 states and 3466 transitions. [2020-07-20 17:27:45,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:27:45,018 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 305 [2020-07-20 17:27:45,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:45,018 INFO L225 Difference]: With dead ends: 3302 [2020-07-20 17:27:45,019 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 17:27:45,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:45,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 17:27:45,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 17:27:45,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 17:27:45,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 17:27:45,025 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 305 [2020-07-20 17:27:45,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:45,025 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 17:27:45,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:27:45,026 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 17:27:45,026 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 17:27:45,239 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:45,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 17:27:45,752 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 98 [2020-07-20 17:27:45,894 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 98 [2020-07-20 17:27:47,257 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 123 DAG size of output: 77 [2020-07-20 17:27:47,633 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 43 [2020-07-20 17:27:48,003 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 43 [2020-07-20 17:27:48,007 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:27:48,007 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)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0)) [2020-07-20 17:27:48,008 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:27:48,008 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,008 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,008 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,009 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,009 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,009 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-20 17:27:48,009 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-20 17:27:48,009 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-20 17:27:48,009 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-20 17:27:48,009 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-20 17:27:48,009 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-20 17:27:48,010 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-20 17:27:48,010 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-20 17:27:48,010 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-20 17:27:48,010 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-20 17:27:48,010 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-20 17:27:48,010 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-20 17:27:48,010 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-20 17:27:48,010 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,010 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,011 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,011 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,011 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-20 17:27:48,011 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,011 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-20 17:27:48,011 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-20 17:27:48,011 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-20 17:27:48,011 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-20 17:27:48,012 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-20 17:27:48,012 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-20 17:27:48,012 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-20 17:27:48,012 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-20 17:27:48,013 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-20 17:27:48,013 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-20 17:27:48,013 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-20 17:27:48,013 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-20 17:27:48,013 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-20 17:27:48,013 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-20 17:27:48,014 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-20 17:27:48,014 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,015 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,016 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,016 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,016 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,017 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 580) no Hoare annotation was computed. [2020-07-20 17:27:48,017 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-20 17:27:48,017 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-20 17:27:48,018 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-20 17:27:48,018 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-20 17:27:48,018 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-20 17:27:48,018 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-20 17:27:48,018 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-20 17:27:48,018 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-20 17:27:48,018 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-20 17:27:48,018 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-20 17:27:48,018 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-20 17:27:48,019 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,019 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,019 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,019 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,019 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,019 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-20 17:27:48,019 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-20 17:27:48,019 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-20 17:27:48,020 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-20 17:27:48,020 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-20 17:27:48,020 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-20 17:27:48,020 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-20 17:27:48,020 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-20 17:27:48,020 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-20 17:27:48,020 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-20 17:27:48,020 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-20 17:27:48,021 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-20 17:27:48,022 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-20 17:27:48,022 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,022 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,022 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,022 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,022 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,022 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-20 17:27:48,023 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-20 17:27:48,023 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-20 17:27:48,023 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-20 17:27:48,023 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-20 17:27:48,023 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-20 17:27:48,023 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-20 17:27:48,023 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-20 17:27:48,023 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-20 17:27:48,023 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-20 17:27:48,024 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-20 17:27:48,024 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-20 17:27:48,024 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-20 17:27:48,024 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-20 17:27:48,024 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-20 17:27:48,024 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-20 17:27:48,025 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,025 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,025 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,025 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,025 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-20 17:27:48,025 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,025 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-20 17:27:48,026 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,026 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-20 17:27:48,027 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-20 17:27:48,027 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-20 17:27:48,027 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,027 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,028 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-20 17:27:48,028 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-20 17:27:48,028 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-20 17:27:48,028 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-20 17:27:48,028 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-20 17:27:48,028 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-20 17:27:48,029 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-20 17:27:48,029 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-20 17:27:48,029 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-20 17:27:48,029 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-20 17:27:48,029 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-20 17:27:48,029 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,029 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,029 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,030 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,030 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,030 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,030 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-20 17:27:48,030 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-20 17:27:48,030 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-20 17:27:48,030 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-20 17:27:48,031 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-20 17:27:48,031 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-20 17:27:48,031 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-20 17:27:48,031 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-20 17:27:48,031 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-20 17:27:48,031 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-20 17:27:48,031 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-20 17:27:48,031 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,032 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,032 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,032 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,032 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,032 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,032 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-20 17:27:48,032 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-20 17:27:48,032 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-20 17:27:48,033 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-20 17:27:48,033 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-20 17:27:48,033 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-20 17:27:48,033 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-20 17:27:48,033 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-20 17:27:48,033 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-20 17:27:48,033 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-20 17:27:48,034 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-20 17:27:48,034 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-20 17:27:48,034 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-20 17:27:48,034 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-20 17:27:48,034 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,034 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,034 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,035 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse8 (<= ~a17~0 |old(~a17~0)|)) (.cse17 (<= ~a28~0 9)) (.cse11 (= ~a19~0 |old(~a19~0)|)) (.cse12 (<= |old(~a28~0)| ~a28~0))) (let ((.cse3 (and .cse8 .cse17 .cse11 .cse12)) (.cse2 (not (<= |old(~a17~0)| 7))) (.cse14 (not (<= |old(~a28~0)| 8))) (.cse0 (not (<= |old(~a28~0)| 9))) (.cse9 (= 1 ~a11~0)) (.cse13 (not (= 1 |old(~a11~0)|))) (.cse6 (not (<= |old(~a28~0)| 10))) (.cse16 (<= ~a17~0 8)) (.cse10 (<= ~a28~0 10)) (.cse7 (not (<= 10 |old(~a28~0)|))) (.cse19 (<= 8 ~a17~0)) (.cse20 (not (<= 8 |old(~a17~0)|))) (.cse1 (not (<= |old(~a19~0)| 0))) (.cse4 (not (= 1 |old(~a19~0)|))) (.cse15 (<= ~a28~0 |old(~a28~0)|)) (.cse18 (not (<= |old(~a28~0)| 7))) (.cse5 (not (<= |old(~a17~0)| 8)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse5 .cse3) (or .cse4 .cse6 .cse2 .cse7 (and .cse8 .cse9 .cse10 .cse11 .cse12) .cse13) (or .cse14 (and .cse15 .cse16 .cse11 .cse12) .cse1 .cse5) (or .cse4 (not (<= 9 |old(~a28~0)|)) .cse9 .cse0 .cse5 .cse13) (or .cse4 .cse14 (<= ~a28~0 8) .cse5) (or .cse6 .cse1 .cse7 .cse5 (and .cse8 .cse10 .cse11 .cse12)) (or .cse4 (not (<= 11 |old(~a28~0)|)) .cse5 (and .cse8 .cse15 .cse11 .cse12)) (or (and .cse9 .cse16 .cse17 .cse11 .cse12) .cse0 .cse1 .cse5 .cse13) (or .cse4 .cse9 .cse18 .cse5 .cse13) (or .cse4 .cse6 (and .cse16 .cse19 .cse10 .cse11 .cse12) .cse20 .cse7 .cse5) (or .cse18 .cse19 .cse20 .cse1 .cse5) (or .cse4 .cse15 .cse18 .cse5)))) [2020-07-20 17:27:48,035 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,035 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,035 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,035 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-20 17:27:48,036 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-20 17:27:48,036 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-20 17:27:48,036 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-20 17:27:48,036 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-20 17:27:48,036 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-20 17:27:48,036 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-20 17:27:48,036 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-20 17:27:48,036 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-20 17:27:48,036 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-20 17:27:48,037 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-20 17:27:48,037 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-20 17:27:48,037 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-20 17:27:48,037 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,037 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,037 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,037 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,037 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,037 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,038 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-20 17:27:48,038 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-20 17:27:48,038 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-20 17:27:48,038 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-20 17:27:48,038 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-20 17:27:48,038 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-20 17:27:48,038 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-20 17:27:48,038 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-20 17:27:48,038 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-20 17:27:48,039 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-20 17:27:48,039 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-20 17:27:48,039 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-20 17:27:48,039 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-20 17:27:48,039 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-20 17:27:48,039 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-20 17:27:48,039 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-20 17:27:48,039 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,039 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,040 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,040 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,040 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:27:48,040 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-20 17:27:48,040 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-20 17:27:48,040 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-20 17:27:48,040 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-20 17:27:48,040 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-20 17:27:48,040 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-20 17:27:48,040 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-20 17:27:48,041 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-20 17:27:48,041 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-20 17:27:48,041 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-20 17:27:48,041 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-20 17:27:48,041 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-20 17:27:48,041 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-20 17:27:48,041 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-20 17:27:48,041 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-20 17:27:48,041 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-20 17:27:48,042 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-20 17:27:48,042 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-20 17:27:48,042 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-20 17:27:48,042 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:27:48,042 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a17~0 8) (<= 8 ~a17~0) (<= ~a28~0 7)) [2020-07-20 17:27:48,042 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 17:27:48,042 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:27:48,042 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a17~0)| 8)) (and (<= ~a28~0 |old(~a28~0)|) (<= ~a17~0 8) (<= 8 ~a17~0) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0))) [2020-07-20 17:27:48,043 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse5 (= 1 ~a11~0)) (.cse3 (<= ~a17~0 7)) (.cse0 (= 1 ~a19~0)) (.cse2 (<= ~a28~0 9)) (.cse1 (<= ~a17~0 8)) (.cse4 (<= ~a19~0 0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 (<= 8 ~a17~0)) (and .cse2 .cse3 .cse4) (and .cse5 .cse1 .cse2 .cse4) (and .cse0 .cse5 .cse3) (not (<= |old(~a28~0)| 7)) (and .cse1 (<= ~a28~0 10) (<= 10 ~a28~0) .cse4) (not (<= 8 |old(~a17~0)|)) (and .cse0 .cse1 (<= 11 ~a28~0)) (and .cse0 .cse1 .cse2) (and .cse1 (<= ~a28~0 8) .cse4) (not (<= |old(~a17~0)| 8)))) [2020-07-20 17:27:48,043 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-20 17:27:48,043 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-20 17:27:48,043 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse5 (= 1 ~a11~0)) (.cse3 (<= ~a17~0 7)) (.cse0 (= 1 ~a19~0)) (.cse2 (<= ~a28~0 9)) (.cse1 (<= ~a17~0 8)) (.cse4 (<= ~a19~0 0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 (<= 8 ~a17~0)) (and .cse2 .cse3 .cse4) (and .cse5 .cse1 .cse2 .cse4) (and .cse0 .cse5 .cse3) (not (<= |old(~a28~0)| 7)) (and .cse1 (<= ~a28~0 10) (<= 10 ~a28~0) .cse4) (not (<= 8 |old(~a17~0)|)) (and .cse0 .cse1 (<= 11 ~a28~0)) (and .cse0 .cse1 .cse2) (and .cse1 (<= ~a28~0 8) .cse4) (not (<= |old(~a17~0)| 8)))) [2020-07-20 17:27:48,043 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-20 17:27:48,043 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-20 17:27:48,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:27:48 BoogieIcfgContainer [2020-07-20 17:27:48,085 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 17:27:48,087 INFO L168 Benchmark]: Toolchain (without parser) took 23239.73 ms. Allocated memory was 146.3 MB in the beginning and 549.5 MB in the end (delta: 403.2 MB). Free memory was 100.9 MB in the beginning and 448.1 MB in the end (delta: -347.2 MB). Peak memory consumption was 413.5 MB. Max. memory is 7.1 GB. [2020-07-20 17:27:48,089 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 146.3 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 17:27:48,095 INFO L168 Benchmark]: CACSL2BoogieTranslator took 785.81 ms. Allocated memory was 146.3 MB in the beginning and 206.0 MB in the end (delta: 59.8 MB). Free memory was 100.5 MB in the beginning and 172.8 MB in the end (delta: -72.3 MB). Peak memory consumption was 30.2 MB. Max. memory is 7.1 GB. [2020-07-20 17:27:48,096 INFO L168 Benchmark]: Boogie Preprocessor took 116.56 ms. Allocated memory is still 206.0 MB. Free memory was 172.8 MB in the beginning and 167.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. [2020-07-20 17:27:48,101 INFO L168 Benchmark]: RCFGBuilder took 1237.72 ms. Allocated memory was 206.0 MB in the beginning and 238.6 MB in the end (delta: 32.5 MB). Free memory was 167.5 MB in the beginning and 180.8 MB in the end (delta: -13.3 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. [2020-07-20 17:27:48,101 INFO L168 Benchmark]: TraceAbstraction took 21092.98 ms. Allocated memory was 238.6 MB in the beginning and 549.5 MB in the end (delta: 310.9 MB). Free memory was 180.8 MB in the beginning and 448.1 MB in the end (delta: -267.3 MB). Peak memory consumption was 401.1 MB. Max. memory is 7.1 GB. [2020-07-20 17:27:48,109 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 146.3 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 785.81 ms. Allocated memory was 146.3 MB in the beginning and 206.0 MB in the end (delta: 59.8 MB). Free memory was 100.5 MB in the beginning and 172.8 MB in the end (delta: -72.3 MB). Peak memory consumption was 30.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.56 ms. Allocated memory is still 206.0 MB. Free memory was 172.8 MB in the beginning and 167.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1237.72 ms. Allocated memory was 206.0 MB in the beginning and 238.6 MB in the end (delta: 32.5 MB). Free memory was 167.5 MB in the beginning and 180.8 MB in the end (delta: -13.3 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21092.98 ms. Allocated memory was 238.6 MB in the beginning and 549.5 MB in the end (delta: 310.9 MB). Free memory was 180.8 MB in the beginning and 448.1 MB in the end (delta: -267.3 MB). Peak memory consumption was 401.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 580]: 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 && a17 <= 8) && 8 <= a17)) || ((a28 <= 9 && a17 <= 7) && a19 <= 0)) || (((1 == a11 && a17 <= 8) && a28 <= 9) && a19 <= 0)) || ((1 == a19 && 1 == a11) && a17 <= 7)) || !(\old(a28) <= 7)) || (((a17 <= 8 && a28 <= 10) && 10 <= a28) && a19 <= 0)) || !(8 <= \old(a17))) || ((1 == a19 && a17 <= 8) && 11 <= a28)) || ((1 == a19 && a17 <= 8) && a28 <= 9)) || ((a17 <= 8 && a28 <= 8) && a19 <= 0)) || !(\old(a17) <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.1s, OverallIterations: 13, TraceHistogramMax: 4, AutomataDifference: 10.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1322 SDtfs, 3496 SDslu, 600 SDs, 0 SdLazy, 7871 SolverSat, 1263 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4123 GetRequests, 4063 SyntacticMatches, 8 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2270occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 13 MinimizatonAttempts, 1843 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 139 PreInvPairs, 175 NumberOfFragments, 604 HoareAnnotationTreeSize, 139 FomulaSimplifications, 4120 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3062 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 2739 NumberOfCodeBlocks, 2739 NumberOfCodeBlocksAsserted, 52 NumberOfCheckSat, 4087 ConstructedInterpolants, 0 QuantifiedInterpolants, 1709871 SizeOfPredicates, 17 NumberOfNonLiveVariables, 6024 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 19 InterpolantComputations, 7 PerfectInterpolantSequences, 1826/1904 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...