/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 DAGSIZE --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/Problem10_label30.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 22:06:58,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 22:06:58,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 22:06:58,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 22:06:58,637 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 22:06:58,640 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 22:06:58,642 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 22:06:58,654 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 22:06:58,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 22:06:58,659 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 22:06:58,661 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 22:06:58,663 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 22:06:58,663 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 22:06:58,667 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 22:06:58,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 22:06:58,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 22:06:58,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 22:06:58,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 22:06:58,676 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 22:06:58,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 22:06:58,688 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 22:06:58,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 22:06:58,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 22:06:58,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 22:06:58,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 22:06:58,697 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 22:06:58,697 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 22:06:58,700 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 22:06:58,700 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 22:06:58,702 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 22:06:58,702 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 22:06:58,704 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 22:06:58,704 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 22:06:58,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 22:06:58,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 22:06:58,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 22:06:58,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 22:06:58,708 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 22:06:58,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 22:06:58,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 22:06:58,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 22:06:58,712 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 22:06:58,749 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 22:06:58,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 22:06:58,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 22:06:58,754 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 22:06:58,754 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 22:06:58,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 22:06:58,755 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 22:06:58,755 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 22:06:58,757 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 22:06:58,757 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 22:06:58,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 22:06:58,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 22:06:58,758 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 22:06:58,758 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 22:06:58,758 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 22:06:58,759 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 22:06:58,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 22:06:58,759 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 22:06:58,760 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 22:06:58,760 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 22:06:58,760 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 22:06:58,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 22:06:58,761 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 22:06:58,761 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 22:06:58,761 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 22:06:58,761 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 22:06:58,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:06:58,762 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 22:06:58,762 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 22:06:58,762 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 -> DAGSIZE 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 22:06:59,053 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 22:06:59,063 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 22:06:59,067 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 22:06:59,069 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 22:06:59,072 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 22:06:59,073 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label30.c [2020-07-20 22:06:59,150 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3c430519/549ef691ca1b4b0994363e2c69b80abc/FLAG5d2f3f40c [2020-07-20 22:06:59,779 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 22:06:59,780 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label30.c [2020-07-20 22:06:59,806 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3c430519/549ef691ca1b4b0994363e2c69b80abc/FLAG5d2f3f40c [2020-07-20 22:06:59,983 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3c430519/549ef691ca1b4b0994363e2c69b80abc [2020-07-20 22:06:59,993 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 22:06:59,997 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 22:06:59,998 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 22:06:59,998 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 22:07:00,002 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 22:07:00,003 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:06:59" (1/1) ... [2020-07-20 22:07:00,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d0c3774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:07:00, skipping insertion in model container [2020-07-20 22:07:00,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:06:59" (1/1) ... [2020-07-20 22:07:00,015 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 22:07:00,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 22:07:00,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:07:00,540 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 22:07:00,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:07:00,776 INFO L208 MainTranslator]: Completed translation [2020-07-20 22:07:00,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:07:00 WrapperNode [2020-07-20 22:07:00,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 22:07:00,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 22:07:00,778 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 22:07:00,778 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 22:07:00,793 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:07:00" (1/1) ... [2020-07-20 22:07:00,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:07:00" (1/1) ... [2020-07-20 22:07:00,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:07:00" (1/1) ... [2020-07-20 22:07:00,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:07:00" (1/1) ... [2020-07-20 22:07:00,857 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:07:00" (1/1) ... [2020-07-20 22:07:00,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:07:00" (1/1) ... [2020-07-20 22:07:00,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:07:00" (1/1) ... [2020-07-20 22:07:00,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 22:07:00,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 22:07:00,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 22:07:00,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 22:07:00,891 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:07:00" (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 22:07:00,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 22:07:00,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 22:07:00,963 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 22:07:00,963 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 22:07:00,964 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 22:07:00,964 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 22:07:00,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 22:07:00,965 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 22:07:00,965 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 22:07:00,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 22:07:00,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 22:07:02,307 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 22:07:02,307 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 22:07:02,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:07:02 BoogieIcfgContainer [2020-07-20 22:07:02,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 22:07:02,324 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 22:07:02,324 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 22:07:02,329 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 22:07:02,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:06:59" (1/3) ... [2020-07-20 22:07:02,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53cf76f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:07:02, skipping insertion in model container [2020-07-20 22:07:02,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:07:00" (2/3) ... [2020-07-20 22:07:02,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53cf76f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:07:02, skipping insertion in model container [2020-07-20 22:07:02,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:07:02" (3/3) ... [2020-07-20 22:07:02,336 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label30.c [2020-07-20 22:07:02,351 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 22:07:02,367 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 22:07:02,387 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 22:07:02,428 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 22:07:02,429 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 22:07:02,430 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 22:07:02,430 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 22:07:02,430 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 22:07:02,430 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 22:07:02,430 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 22:07:02,431 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 22:07:02,460 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-20 22:07:02,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-07-20 22:07:02,474 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:07:02,476 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] [2020-07-20 22:07:02,477 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:07:02,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:07:02,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1422134543, now seen corresponding path program 1 times [2020-07-20 22:07:02,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:07:02,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2007205941] [2020-07-20 22:07:02,496 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 22:07:02,627 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:07:02,627 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:07:02,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 22:07:02,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:07:02,743 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 22:07:02,743 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:07:02,745 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2007205941] [2020-07-20 22:07:02,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:07:02,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:07:02,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201641267] [2020-07-20 22:07:02,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:07:02,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:07:02,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:07:02,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:07:02,779 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-20 22:07:03,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:07:03,897 INFO L93 Difference]: Finished difference Result 586 states and 1004 transitions. [2020-07-20 22:07:03,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:07:03,899 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2020-07-20 22:07:03,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:07:03,928 INFO L225 Difference]: With dead ends: 586 [2020-07-20 22:07:03,929 INFO L226 Difference]: Without dead ends: 294 [2020-07-20 22:07:03,942 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 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 22:07:03,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-20 22:07:04,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-20 22:07:04,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-20 22:07:04,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 426 transitions. [2020-07-20 22:07:04,064 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 426 transitions. Word has length 40 [2020-07-20 22:07:04,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:07:04,064 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 426 transitions. [2020-07-20 22:07:04,065 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:07:04,065 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 426 transitions. [2020-07-20 22:07:04,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-07-20 22:07:04,072 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:07:04,072 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:07:04,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:07:04,287 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:07:04,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:07:04,289 INFO L82 PathProgramCache]: Analyzing trace with hash -214474198, now seen corresponding path program 1 times [2020-07-20 22:07:04,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:07:04,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1014605846] [2020-07-20 22:07:04,290 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 22:07:04,385 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:07:04,385 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:07:04,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:07:04,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:07:04,426 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:07:04,426 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:07:04,426 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1014605846] [2020-07-20 22:07:04,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:07:04,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:07:04,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836995872] [2020-07-20 22:07:04,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:07:04,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:07:04,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:07:04,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:07:04,430 INFO L87 Difference]: Start difference. First operand 294 states and 426 transitions. Second operand 3 states. [2020-07-20 22:07:05,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:07:05,171 INFO L93 Difference]: Finished difference Result 868 states and 1277 transitions. [2020-07-20 22:07:05,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:07:05,171 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 114 [2020-07-20 22:07:05,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:07:05,178 INFO L225 Difference]: With dead ends: 868 [2020-07-20 22:07:05,178 INFO L226 Difference]: Without dead ends: 580 [2020-07-20 22:07:05,180 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 112 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 22:07:05,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-07-20 22:07:05,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2020-07-20 22:07:05,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-07-20 22:07:05,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 762 transitions. [2020-07-20 22:07:05,218 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 762 transitions. Word has length 114 [2020-07-20 22:07:05,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:07:05,221 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 762 transitions. [2020-07-20 22:07:05,221 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:07:05,221 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 762 transitions. [2020-07-20 22:07:05,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-07-20 22:07:05,224 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:07:05,225 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:07:05,443 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:07:05,444 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:07:05,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:07:05,446 INFO L82 PathProgramCache]: Analyzing trace with hash -958443539, now seen corresponding path program 1 times [2020-07-20 22:07:05,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:07:05,447 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1512441952] [2020-07-20 22:07:05,447 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 22:07:05,531 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:07:05,531 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:07:05,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:07:05,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:07:05,574 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:07:05,575 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:07:05,575 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1512441952] [2020-07-20 22:07:05,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:07:05,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:07:05,576 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136743222] [2020-07-20 22:07:05,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:07:05,577 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:07:05,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:07:05,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:07:05,578 INFO L87 Difference]: Start difference. First operand 580 states and 762 transitions. Second operand 3 states. [2020-07-20 22:07:06,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:07:06,325 INFO L93 Difference]: Finished difference Result 1440 states and 1957 transitions. [2020-07-20 22:07:06,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:07:06,327 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2020-07-20 22:07:06,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:07:06,337 INFO L225 Difference]: With dead ends: 1440 [2020-07-20 22:07:06,337 INFO L226 Difference]: Without dead ends: 866 [2020-07-20 22:07:06,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 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 22:07:06,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2020-07-20 22:07:06,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 866. [2020-07-20 22:07:06,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 866 states. [2020-07-20 22:07:06,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1139 transitions. [2020-07-20 22:07:06,383 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1139 transitions. Word has length 119 [2020-07-20 22:07:06,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:07:06,384 INFO L479 AbstractCegarLoop]: Abstraction has 866 states and 1139 transitions. [2020-07-20 22:07:06,384 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:07:06,384 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1139 transitions. [2020-07-20 22:07:06,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-07-20 22:07:06,388 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:07:06,388 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:07:06,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:07:06,604 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:07:06,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:07:06,605 INFO L82 PathProgramCache]: Analyzing trace with hash -699001651, now seen corresponding path program 1 times [2020-07-20 22:07:06,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:07:06,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55279906] [2020-07-20 22:07:06,607 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 22:07:06,717 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:07:06,718 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:07:06,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:07:06,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:07:06,765 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:07:06,765 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:07:06,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55279906] [2020-07-20 22:07:06,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:07:06,766 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:07:06,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341305701] [2020-07-20 22:07:06,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:07:06,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:07:06,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:07:06,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:07:06,768 INFO L87 Difference]: Start difference. First operand 866 states and 1139 transitions. Second operand 3 states. [2020-07-20 22:07:07,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:07:07,531 INFO L93 Difference]: Finished difference Result 2012 states and 2717 transitions. [2020-07-20 22:07:07,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:07:07,531 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2020-07-20 22:07:07,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:07:07,540 INFO L225 Difference]: With dead ends: 2012 [2020-07-20 22:07:07,540 INFO L226 Difference]: Without dead ends: 1152 [2020-07-20 22:07:07,542 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 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 22:07:07,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2020-07-20 22:07:07,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 1152. [2020-07-20 22:07:07,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1152 states. [2020-07-20 22:07:07,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1466 transitions. [2020-07-20 22:07:07,581 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1466 transitions. Word has length 135 [2020-07-20 22:07:07,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:07:07,581 INFO L479 AbstractCegarLoop]: Abstraction has 1152 states and 1466 transitions. [2020-07-20 22:07:07,582 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:07:07,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1466 transitions. [2020-07-20 22:07:07,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-07-20 22:07:07,588 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:07:07,589 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 22:07:07,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:07:07,799 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:07:07,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:07:07,800 INFO L82 PathProgramCache]: Analyzing trace with hash -70500101, now seen corresponding path program 1 times [2020-07-20 22:07:07,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:07:07,801 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1702719219] [2020-07-20 22:07:07,801 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 22:07:07,904 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:07:07,904 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:07:07,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:07:07,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:07:07,966 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 137 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:07:07,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:07:08,127 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 137 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:07:08,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1702719219] [2020-07-20 22:07:08,128 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:07:08,128 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 22:07:08,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412265136] [2020-07-20 22:07:08,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 22:07:08,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:07:08,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 22:07:08,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-20 22:07:08,131 INFO L87 Difference]: Start difference. First operand 1152 states and 1466 transitions. Second operand 7 states. [2020-07-20 22:07:09,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:07:09,744 INFO L93 Difference]: Finished difference Result 3951 states and 5238 transitions. [2020-07-20 22:07:09,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-20 22:07:09,744 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 192 [2020-07-20 22:07:09,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:07:09,758 INFO L225 Difference]: With dead ends: 3951 [2020-07-20 22:07:09,758 INFO L226 Difference]: Without dead ends: 1921 [2020-07-20 22:07:09,765 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 379 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-20 22:07:09,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1921 states. [2020-07-20 22:07:09,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1921 to 1885. [2020-07-20 22:07:09,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1885 states. [2020-07-20 22:07:09,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1885 states to 1885 states and 2211 transitions. [2020-07-20 22:07:09,832 INFO L78 Accepts]: Start accepts. Automaton has 1885 states and 2211 transitions. Word has length 192 [2020-07-20 22:07:09,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:07:09,833 INFO L479 AbstractCegarLoop]: Abstraction has 1885 states and 2211 transitions. [2020-07-20 22:07:09,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 22:07:09,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1885 states and 2211 transitions. [2020-07-20 22:07:09,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-07-20 22:07:09,839 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:07:09,839 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 22:07:10,053 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:07:10,054 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:07:10,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:07:10,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1615395942, now seen corresponding path program 1 times [2020-07-20 22:07:10,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:07:10,055 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1260491968] [2020-07-20 22:07:10,055 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 22:07:10,164 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:07:10,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:07:10,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:07:10,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:07:10,211 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-20 22:07:10,212 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:07:10,212 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1260491968] [2020-07-20 22:07:10,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:07:10,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:07:10,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353782439] [2020-07-20 22:07:10,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:07:10,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:07:10,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:07:10,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:07:10,215 INFO L87 Difference]: Start difference. First operand 1885 states and 2211 transitions. Second operand 3 states. [2020-07-20 22:07:10,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:07:10,763 INFO L93 Difference]: Finished difference Result 1887 states and 2212 transitions. [2020-07-20 22:07:10,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:07:10,764 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 207 [2020-07-20 22:07:10,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:07:10,774 INFO L225 Difference]: With dead ends: 1887 [2020-07-20 22:07:10,774 INFO L226 Difference]: Without dead ends: 1885 [2020-07-20 22:07:10,776 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 205 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 22:07:10,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1885 states. [2020-07-20 22:07:10,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1885 to 1885. [2020-07-20 22:07:10,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1885 states. [2020-07-20 22:07:10,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1885 states to 1885 states and 2210 transitions. [2020-07-20 22:07:10,825 INFO L78 Accepts]: Start accepts. Automaton has 1885 states and 2210 transitions. Word has length 207 [2020-07-20 22:07:10,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:07:10,826 INFO L479 AbstractCegarLoop]: Abstraction has 1885 states and 2210 transitions. [2020-07-20 22:07:10,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:07:10,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1885 states and 2210 transitions. [2020-07-20 22:07:10,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-07-20 22:07:10,831 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:07:10,831 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:07:11,044 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:07:11,045 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:07:11,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:07:11,046 INFO L82 PathProgramCache]: Analyzing trace with hash -910777059, now seen corresponding path program 1 times [2020-07-20 22:07:11,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:07:11,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [366079038] [2020-07-20 22:07:11,048 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 22:07:11,153 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:07:11,153 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:07:11,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:07:11,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:07:11,218 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 134 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:07:11,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:07:11,346 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 134 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:07:11,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [366079038] [2020-07-20 22:07:11,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:07:11,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 22:07:11,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280347209] [2020-07-20 22:07:11,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 22:07:11,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:07:11,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 22:07:11,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 22:07:11,351 INFO L87 Difference]: Start difference. First operand 1885 states and 2210 transitions. Second operand 6 states. [2020-07-20 22:07:12,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:07:12,291 INFO L93 Difference]: Finished difference Result 4086 states and 4866 transitions. [2020-07-20 22:07:12,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 22:07:12,292 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 208 [2020-07-20 22:07:12,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:07:12,306 INFO L225 Difference]: With dead ends: 4086 [2020-07-20 22:07:12,306 INFO L226 Difference]: Without dead ends: 2350 [2020-07-20 22:07:12,313 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 410 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 22:07:12,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2350 states. [2020-07-20 22:07:12,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2350 to 2201. [2020-07-20 22:07:12,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2201 states. [2020-07-20 22:07:12,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2201 states to 2201 states and 2612 transitions. [2020-07-20 22:07:12,396 INFO L78 Accepts]: Start accepts. Automaton has 2201 states and 2612 transitions. Word has length 208 [2020-07-20 22:07:12,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:07:12,396 INFO L479 AbstractCegarLoop]: Abstraction has 2201 states and 2612 transitions. [2020-07-20 22:07:12,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 22:07:12,397 INFO L276 IsEmpty]: Start isEmpty. Operand 2201 states and 2612 transitions. [2020-07-20 22:07:12,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-07-20 22:07:12,402 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:07:12,402 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 22:07:12,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:07:12,617 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:07:12,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:07:12,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1055956540, now seen corresponding path program 1 times [2020-07-20 22:07:12,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:07:12,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [126292813] [2020-07-20 22:07:12,619 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 22:07:12,729 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:07:12,729 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:07:12,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 22:07:12,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:07:12,825 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-07-20 22:07:12,825 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:07:12,826 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [126292813] [2020-07-20 22:07:12,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:07:12,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 22:07:12,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857170482] [2020-07-20 22:07:12,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 22:07:12,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:07:12,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 22:07:12,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 22:07:12,828 INFO L87 Difference]: Start difference. First operand 2201 states and 2612 transitions. Second operand 5 states. [2020-07-20 22:07:13,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:07:13,667 INFO L93 Difference]: Finished difference Result 4281 states and 5107 transitions. [2020-07-20 22:07:13,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 22:07:13,673 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 215 [2020-07-20 22:07:13,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:07:13,683 INFO L225 Difference]: With dead ends: 4281 [2020-07-20 22:07:13,683 INFO L226 Difference]: Without dead ends: 2229 [2020-07-20 22:07:13,689 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-20 22:07:13,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2229 states. [2020-07-20 22:07:13,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2229 to 2219. [2020-07-20 22:07:13,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2219 states. [2020-07-20 22:07:13,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2219 states to 2219 states and 2631 transitions. [2020-07-20 22:07:13,749 INFO L78 Accepts]: Start accepts. Automaton has 2219 states and 2631 transitions. Word has length 215 [2020-07-20 22:07:13,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:07:13,749 INFO L479 AbstractCegarLoop]: Abstraction has 2219 states and 2631 transitions. [2020-07-20 22:07:13,750 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 22:07:13,750 INFO L276 IsEmpty]: Start isEmpty. Operand 2219 states and 2631 transitions. [2020-07-20 22:07:13,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2020-07-20 22:07:13,758 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:07:13,758 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:07:13,972 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:07:13,973 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:07:13,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:07:13,973 INFO L82 PathProgramCache]: Analyzing trace with hash -878759303, now seen corresponding path program 1 times [2020-07-20 22:07:13,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:07:13,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2023627158] [2020-07-20 22:07:13,974 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 22:07:14,170 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:07:14,170 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:07:14,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:07:14,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:07:14,203 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-20 22:07:14,204 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 22:07:14,296 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 280 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-07-20 22:07:14,296 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:07:14,376 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 22:07:14,378 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 22:07:14,381 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-20 22:07:14,382 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 22:07:14,519 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 171 proven. 77 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-07-20 22:07:14,519 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2023627158] [2020-07-20 22:07:14,519 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:07:14,519 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 22:07:14,520 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904765863] [2020-07-20 22:07:14,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 22:07:14,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:07:14,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 22:07:14,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 22:07:14,522 INFO L87 Difference]: Start difference. First operand 2219 states and 2631 transitions. Second operand 6 states. [2020-07-20 22:07:15,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:07:15,590 INFO L93 Difference]: Finished difference Result 4319 states and 5219 transitions. [2020-07-20 22:07:15,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 22:07:15,590 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 285 [2020-07-20 22:07:15,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:07:15,602 INFO L225 Difference]: With dead ends: 4319 [2020-07-20 22:07:15,602 INFO L226 Difference]: Without dead ends: 2249 [2020-07-20 22:07:15,608 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 575 GetRequests, 566 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 22:07:15,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2249 states. [2020-07-20 22:07:15,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2249 to 2076. [2020-07-20 22:07:15,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2076 states. [2020-07-20 22:07:15,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2076 states to 2076 states and 2381 transitions. [2020-07-20 22:07:15,671 INFO L78 Accepts]: Start accepts. Automaton has 2076 states and 2381 transitions. Word has length 285 [2020-07-20 22:07:15,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:07:15,672 INFO L479 AbstractCegarLoop]: Abstraction has 2076 states and 2381 transitions. [2020-07-20 22:07:15,672 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 22:07:15,672 INFO L276 IsEmpty]: Start isEmpty. Operand 2076 states and 2381 transitions. [2020-07-20 22:07:15,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2020-07-20 22:07:15,679 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:07:15,680 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:07:15,891 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:07:15,892 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:07:15,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:07:15,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1828439900, now seen corresponding path program 1 times [2020-07-20 22:07:15,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:07:15,893 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1670076836] [2020-07-20 22:07:15,893 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 22:07:16,026 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:07:16,027 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:07:16,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:07:16,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:07:16,105 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2020-07-20 22:07:16,105 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:07:16,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1670076836] [2020-07-20 22:07:16,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:07:16,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:07:16,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123249599] [2020-07-20 22:07:16,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:07:16,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:07:16,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:07:16,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:07:16,108 INFO L87 Difference]: Start difference. First operand 2076 states and 2381 transitions. Second operand 3 states. [2020-07-20 22:07:16,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:07:16,631 INFO L93 Difference]: Finished difference Result 2223 states and 2531 transitions. [2020-07-20 22:07:16,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:07:16,632 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 300 [2020-07-20 22:07:16,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:07:16,641 INFO L225 Difference]: With dead ends: 2223 [2020-07-20 22:07:16,641 INFO L226 Difference]: Without dead ends: 2074 [2020-07-20 22:07:16,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 298 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 22:07:16,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2074 states. [2020-07-20 22:07:16,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2074 to 1929. [2020-07-20 22:07:16,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1929 states. [2020-07-20 22:07:16,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1929 states to 1929 states and 2199 transitions. [2020-07-20 22:07:16,686 INFO L78 Accepts]: Start accepts. Automaton has 1929 states and 2199 transitions. Word has length 300 [2020-07-20 22:07:16,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:07:16,688 INFO L479 AbstractCegarLoop]: Abstraction has 1929 states and 2199 transitions. [2020-07-20 22:07:16,688 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:07:16,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1929 states and 2199 transitions. [2020-07-20 22:07:16,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-07-20 22:07:16,696 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:07:16,696 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 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 22:07:16,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:07:16,911 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:07:16,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:07:16,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1060741542, now seen corresponding path program 1 times [2020-07-20 22:07:16,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:07:16,912 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1452784511] [2020-07-20 22:07:16,912 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 22:07:17,131 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:07:17,131 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:07:17,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-20 22:07:17,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:07:17,166 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 22:07:17,168 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 22:07:17,170 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 22:07:17,171 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-20 22:07:17,175 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 22:07:17,177 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 22:07:17,181 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 22:07:17,186 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 22:07:17,187 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 22:07:17,196 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 22:07:17,200 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 22:07:17,203 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 22:07:17,204 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 22:07:17,205 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 22:07:17,206 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 22:07:17,212 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 22:07:17,219 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 22:07:17,220 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 22:07:17,221 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 22:07:17,224 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 22:07:17,227 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-20 22:07:17,231 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 22:07:17,232 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 22:07:17,233 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 22:07:17,234 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 22:07:17,236 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-20 22:07:32,394 WARN L193 SmtUtils]: Spent 15.06 s on a formula simplification. DAG size of input: 64 DAG size of output: 34 [2020-07-20 22:07:32,434 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-20 22:07:32,538 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-20 22:07:32,538 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 22:07:32,539 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 22:07:32,567 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 22:07:32,708 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 315 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-07-20 22:07:32,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:07:32,830 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 22:07:32,831 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 22:07:32,832 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 22:07:32,833 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 22:07:32,861 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 22:07:32,862 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 22:07:33,005 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 22:07:33,009 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 22:07:33,010 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 22:07:33,012 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 22:07:33,014 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 22:07:33,015 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 22:07:33,016 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 22:07:33,020 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 22:07:33,025 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 22:07:33,030 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 22:07:33,033 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 22:07:33,033 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-20 22:07:33,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1452784511] [2020-07-20 22:07:33,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-20 22:07:33,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-07-20 22:07:33,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409362947] [2020-07-20 22:07:33,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 22:07:33,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:07:33,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 22:07:33,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-07-20 22:07:33,151 INFO L87 Difference]: Start difference. First operand 1929 states and 2199 transitions. Second operand 8 states. [2020-07-20 22:07:34,149 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2020-07-20 22:08:03,354 WARN L193 SmtUtils]: Spent 27.12 s on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2020-07-20 22:08:03,987 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 36 [2020-07-20 22:08:06,210 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2020-07-20 22:08:06,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:08:06,867 INFO L93 Difference]: Finished difference Result 5042 states and 5884 transitions. [2020-07-20 22:08:06,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-20 22:08:06,869 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 330 [2020-07-20 22:08:06,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:08:06,884 INFO L225 Difference]: With dead ends: 5042 [2020-07-20 22:08:06,884 INFO L226 Difference]: Without dead ends: 3262 [2020-07-20 22:08:06,890 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 551 GetRequests, 529 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 45.1s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2020-07-20 22:08:06,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3262 states. [2020-07-20 22:08:06,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3262 to 2964. [2020-07-20 22:08:06,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2964 states. [2020-07-20 22:08:06,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2964 states to 2964 states and 3390 transitions. [2020-07-20 22:08:06,966 INFO L78 Accepts]: Start accepts. Automaton has 2964 states and 3390 transitions. Word has length 330 [2020-07-20 22:08:06,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:08:06,967 INFO L479 AbstractCegarLoop]: Abstraction has 2964 states and 3390 transitions. [2020-07-20 22:08:06,967 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 22:08:06,967 INFO L276 IsEmpty]: Start isEmpty. Operand 2964 states and 3390 transitions. [2020-07-20 22:08:06,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2020-07-20 22:08:06,977 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:08:06,977 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:08:07,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:08:07,191 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:08:07,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:08:07,193 INFO L82 PathProgramCache]: Analyzing trace with hash -924465415, now seen corresponding path program 1 times [2020-07-20 22:08:07,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:08:07,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [16619735] [2020-07-20 22:08:07,194 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 22:08:07,402 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:08:07,402 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:08:07,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 22:08:07,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:08:07,425 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 22:08:07,426 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 22:08:07,427 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 22:08:07,427 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 22:08:07,428 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 22:08:07,778 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2020-07-20 22:08:07,779 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:08:07,779 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [16619735] [2020-07-20 22:08:07,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:08:07,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:08:07,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683555573] [2020-07-20 22:08:07,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:08:07,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:08:07,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:08:07,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:08:07,781 INFO L87 Difference]: Start difference. First operand 2964 states and 3390 transitions. Second operand 3 states. [2020-07-20 22:08:09,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:08:09,197 INFO L93 Difference]: Finished difference Result 6498 states and 7560 transitions. [2020-07-20 22:08:09,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:08:09,198 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 349 [2020-07-20 22:08:09,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:08:09,199 INFO L225 Difference]: With dead ends: 6498 [2020-07-20 22:08:09,199 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 22:08:09,212 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 347 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 22:08:09,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 22:08:09,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 22:08:09,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 22:08:09,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 22:08:09,213 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 349 [2020-07-20 22:08:09,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:08:09,213 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 22:08:09,213 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:08:09,213 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 22:08:09,214 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 22:08:09,427 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:08:09,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 22:08:09,882 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 114 [2020-07-20 22:08:11,048 WARN L193 SmtUtils]: Spent 948.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 78 [2020-07-20 22:08:11,398 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 45 [2020-07-20 22:08:11,726 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 45 [2020-07-20 22:08:11,731 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 22:08:11,731 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|)) [2020-07-20 22:08:11,731 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 22:08:11,731 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-20 22:08:11,732 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,732 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,732 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,732 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,732 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,732 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,732 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-20 22:08:11,732 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-20 22:08:11,733 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-20 22:08:11,733 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-20 22:08:11,733 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-20 22:08:11,733 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-20 22:08:11,733 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-20 22:08:11,733 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-20 22:08:11,733 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-20 22:08:11,733 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-20 22:08:11,734 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-20 22:08:11,734 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,734 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,734 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,734 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,734 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,734 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-20 22:08:11,734 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-20 22:08:11,734 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-20 22:08:11,735 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-20 22:08:11,735 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-20 22:08:11,735 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-20 22:08:11,735 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-20 22:08:11,735 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-20 22:08:11,735 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-20 22:08:11,735 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-20 22:08:11,735 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-20 22:08:11,735 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-20 22:08:11,736 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-20 22:08:11,736 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 106) no Hoare annotation was computed. [2020-07-20 22:08:11,736 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-20 22:08:11,736 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,736 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,736 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,736 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,737 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,737 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-20 22:08:11,737 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-20 22:08:11,737 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-20 22:08:11,737 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-20 22:08:11,737 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-20 22:08:11,737 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-20 22:08:11,737 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-20 22:08:11,737 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-20 22:08:11,738 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-20 22:08:11,738 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-20 22:08:11,738 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,738 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,738 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,738 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,738 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,739 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-20 22:08:11,739 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-20 22:08:11,739 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-20 22:08:11,739 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-20 22:08:11,739 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-20 22:08:11,739 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-20 22:08:11,739 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-20 22:08:11,739 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-20 22:08:11,740 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-20 22:08:11,740 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-20 22:08:11,740 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-20 22:08:11,740 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-20 22:08:11,740 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-20 22:08:11,740 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,740 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,740 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,740 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,741 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,741 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-20 22:08:11,741 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-20 22:08:11,741 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-20 22:08:11,741 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-20 22:08:11,741 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-20 22:08:11,741 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-20 22:08:11,741 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-20 22:08:11,741 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-20 22:08:11,742 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-20 22:08:11,742 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,742 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,742 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,742 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,742 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,742 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,742 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,742 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-20 22:08:11,743 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-20 22:08:11,743 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-20 22:08:11,743 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-20 22:08:11,743 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-20 22:08:11,743 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-20 22:08:11,743 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-20 22:08:11,743 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-20 22:08:11,743 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-20 22:08:11,743 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-20 22:08:11,743 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-20 22:08:11,744 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-20 22:08:11,744 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-20 22:08:11,744 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,744 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,744 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,744 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,744 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-20 22:08:11,744 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,745 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,745 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-20 22:08:11,745 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-20 22:08:11,745 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-20 22:08:11,745 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-20 22:08:11,745 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-20 22:08:11,745 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-20 22:08:11,745 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-20 22:08:11,746 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-20 22:08:11,746 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-20 22:08:11,746 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-20 22:08:11,746 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-20 22:08:11,746 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-20 22:08:11,746 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-20 22:08:11,746 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,746 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,746 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,746 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,747 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,747 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,747 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-20 22:08:11,747 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-20 22:08:11,747 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-20 22:08:11,747 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-20 22:08:11,747 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-20 22:08:11,747 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-20 22:08:11,747 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-20 22:08:11,748 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-20 22:08:11,748 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-20 22:08:11,748 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-20 22:08:11,748 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-20 22:08:11,748 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse7 (not (<= 9 |old(~a19~0)|))) (.cse8 (<= 9 ~a19~0)) (.cse9 (not (<= |old(~a10~0)| 1))) (.cse0 (<= ~a10~0 |old(~a10~0)|)) (.cse1 (<= |old(~a10~0)| ~a10~0)) (.cse2 (<= ~a19~0 |old(~a19~0)|)) (.cse3 (= ~a1~0 |old(~a1~0)|)) (.cse4 (not (<= |old(~a19~0)| 8))) (.cse5 (not (<= 2 |old(~a10~0)|)))) (and (or (and .cse0 .cse1 .cse2 .cse3) .cse4 .cse5 (forall ((v_~a1~0_414 Int)) (let ((.cse6 (mod (+ v_~a1~0_414 39) 89))) (or (not (= .cse6 0)) (not (< 38 v_~a1~0_414)) (not (<= v_~a1~0_414 218)) (not (<= |old(~a1~0)| (+ .cse6 206))))))) (or (not (< |old(~a19~0)| 10)) .cse7 (and .cse8 .cse0 .cse1 .cse3 (< ~a19~0 10))) (or (not (<= 4 |old(~a10~0)|)) .cse4 (and .cse2 (<= 4 ~a10~0))) (or (not (<= |old(~a1~0)| 23)) (<= ~a1~0 23) .cse4) (or (<= ~a10~0 0) (not (<= |old(~a10~0)| 0))) (or .cse7 (and .cse8 .cse0 .cse1 .cse3) .cse9) (or (and (<= ~a10~0 1) .cse2) .cse9) (or (and (<= 8 ~a19~0) .cse0 .cse1 .cse2 .cse3) .cse4 (not (<= 8 |old(~a19~0)|)) .cse5))) [2020-07-20 22:08:11,748 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-20 22:08:11,748 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-20 22:08:11,749 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-20 22:08:11,749 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,749 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,749 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,749 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,749 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,749 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,749 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-20 22:08:11,749 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-20 22:08:11,749 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-20 22:08:11,749 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-20 22:08:11,749 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-20 22:08:11,750 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-20 22:08:11,750 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-20 22:08:11,750 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-20 22:08:11,750 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-20 22:08:11,750 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-20 22:08:11,750 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-20 22:08:11,750 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-20 22:08:11,750 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-20 22:08:11,750 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,750 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,750 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,750 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,750 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,750 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,751 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-20 22:08:11,751 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-20 22:08:11,751 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-20 22:08:11,751 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-20 22:08:11,751 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-20 22:08:11,751 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-20 22:08:11,751 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-20 22:08:11,751 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-20 22:08:11,751 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-20 22:08:11,751 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-20 22:08:11,751 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-20 22:08:11,752 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-20 22:08:11,752 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,752 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,752 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,752 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,752 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,752 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 22:08:11,752 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-20 22:08:11,752 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-20 22:08:11,752 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-20 22:08:11,752 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-20 22:08:11,752 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-20 22:08:11,752 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-20 22:08:11,752 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-20 22:08:11,752 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-20 22:08:11,753 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-20 22:08:11,753 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-20 22:08:11,753 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-20 22:08:11,753 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-20 22:08:11,753 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 22:08:11,753 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= 9 ~a19~0) (= 23 ~a1~0) (< ~a19~0 10)) [2020-07-20 22:08:11,753 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 22:08:11,753 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 22:08:11,753 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (< |old(~a19~0)| 10)) (not (= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and (<= 9 ~a19~0) (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (= ~a1~0 |old(~a1~0)|) (< ~a19~0 10))) [2020-07-20 22:08:11,753 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-20 22:08:11,753 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 8))) (or (<= ~a10~0 1) (not (< |old(~a19~0)| 10)) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|)) (and (<= 8 ~a19~0) (< ~a19~0 10)) (and .cse0 (exists ((v_~a1~0_414 Int)) (let ((.cse1 (mod (+ v_~a1~0_414 39) 89))) (and (<= v_~a1~0_414 218) (< 38 v_~a1~0_414) (= .cse1 0) (<= ~a1~0 (+ .cse1 206)))))) (and .cse0 (<= 4 ~a10~0)))) [2020-07-20 22:08:11,754 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-20 22:08:11,754 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-20 22:08:11,754 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 8))) (or (<= ~a10~0 1) (not (< |old(~a19~0)| 10)) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|)) (and (<= 8 ~a19~0) (< ~a19~0 10)) (and .cse0 (exists ((v_~a1~0_414 Int)) (let ((.cse1 (mod (+ v_~a1~0_414 39) 89))) (and (<= v_~a1~0_414 218) (< 38 v_~a1~0_414) (= .cse1 0) (<= ~a1~0 (+ .cse1 206)))))) (and .cse0 (<= 4 ~a10~0)))) [2020-07-20 22:08:11,754 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-20 22:08:11,765 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_414,QUANTIFIED] [2020-07-20 22:08:11,766 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_414,QUANTIFIED] [2020-07-20 22:08:11,766 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_414,QUANTIFIED] [2020-07-20 22:08:11,766 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_414,QUANTIFIED] [2020-07-20 22:08:11,775 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_414,QUANTIFIED] [2020-07-20 22:08:11,775 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_414,QUANTIFIED] [2020-07-20 22:08:11,775 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_414,QUANTIFIED] [2020-07-20 22:08:11,775 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_414,QUANTIFIED] [2020-07-20 22:08:11,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:08:11 BoogieIcfgContainer [2020-07-20 22:08:11,778 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 22:08:11,780 INFO L168 Benchmark]: Toolchain (without parser) took 71785.47 ms. Allocated memory was 138.4 MB in the beginning and 533.2 MB in the end (delta: 394.8 MB). Free memory was 100.7 MB in the beginning and 269.1 MB in the end (delta: -168.5 MB). Peak memory consumption was 383.7 MB. Max. memory is 7.1 GB. [2020-07-20 22:08:11,781 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 22:08:11,781 INFO L168 Benchmark]: CACSL2BoogieTranslator took 779.85 ms. Allocated memory was 138.4 MB in the beginning and 205.5 MB in the end (delta: 67.1 MB). Free memory was 100.3 MB in the beginning and 172.4 MB in the end (delta: -72.1 MB). Peak memory consumption was 35.3 MB. Max. memory is 7.1 GB. [2020-07-20 22:08:11,782 INFO L168 Benchmark]: Boogie Preprocessor took 111.21 ms. Allocated memory is still 205.5 MB. Free memory was 172.4 MB in the beginning and 167.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-20 22:08:11,783 INFO L168 Benchmark]: RCFGBuilder took 1431.31 ms. Allocated memory was 205.5 MB in the beginning and 238.6 MB in the end (delta: 33.0 MB). Free memory was 167.5 MB in the beginning and 184.0 MB in the end (delta: -16.6 MB). Peak memory consumption was 83.5 MB. Max. memory is 7.1 GB. [2020-07-20 22:08:11,784 INFO L168 Benchmark]: TraceAbstraction took 69454.63 ms. Allocated memory was 238.6 MB in the beginning and 533.2 MB in the end (delta: 294.6 MB). Free memory was 182.6 MB in the beginning and 269.1 MB in the end (delta: -86.6 MB). Peak memory consumption was 365.5 MB. Max. memory is 7.1 GB. [2020-07-20 22:08:11,787 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 779.85 ms. Allocated memory was 138.4 MB in the beginning and 205.5 MB in the end (delta: 67.1 MB). Free memory was 100.3 MB in the beginning and 172.4 MB in the end (delta: -72.1 MB). Peak memory consumption was 35.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.21 ms. Allocated memory is still 205.5 MB. Free memory was 172.4 MB in the beginning and 167.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1431.31 ms. Allocated memory was 205.5 MB in the beginning and 238.6 MB in the end (delta: 33.0 MB). Free memory was 167.5 MB in the beginning and 184.0 MB in the end (delta: -16.6 MB). Peak memory consumption was 83.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 69454.63 ms. Allocated memory was 238.6 MB in the beginning and 533.2 MB in the end (delta: 294.6 MB). Free memory was 182.6 MB in the beginning and 269.1 MB in the end (delta: -86.6 MB). Peak memory consumption was 365.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_414,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_414,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_414,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_414,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_414,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_414,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_414,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_414,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 106]: 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: 582]: Loop Invariant [2020-07-20 22:08:11,795 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_414,QUANTIFIED] [2020-07-20 22:08:11,795 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_414,QUANTIFIED] [2020-07-20 22:08:11,795 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_414,QUANTIFIED] [2020-07-20 22:08:11,795 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_414,QUANTIFIED] [2020-07-20 22:08:11,796 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_414,QUANTIFIED] [2020-07-20 22:08:11,796 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_414,QUANTIFIED] [2020-07-20 22:08:11,797 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_414,QUANTIFIED] [2020-07-20 22:08:11,797 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_414,QUANTIFIED] Derived loop invariant: ((((((a10 <= 1 || !(\old(a19) < 10)) || !(\old(a10) <= 0)) || !(23 == \old(a1))) || !(9 <= \old(a19))) || (8 <= a19 && a19 < 10)) || (a19 <= 8 && (\exists v_~a1~0_414 : int :: ((v_~a1~0_414 <= 218 && 38 < v_~a1~0_414) && (v_~a1~0_414 + 39) % 89 == 0) && a1 <= (v_~a1~0_414 + 39) % 89 + 206))) || (a19 <= 8 && 4 <= a10) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 67.0s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 44.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 603 SDtfs, 2918 SDslu, 304 SDs, 0 SdLazy, 7365 SolverSat, 1152 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3408 GetRequests, 3345 SyntacticMatches, 7 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 45.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2964occurred in iteration=11, 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, 12 MinimizatonAttempts, 811 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 134 PreInvPairs, 206 NumberOfFragments, 359 HoareAnnotationTreeSize, 134 FomulaSimplifications, 3531 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4663 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 17.6s InterpolantComputationTime, 2494 NumberOfCodeBlocks, 2494 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 3164 ConstructedInterpolants, 42 QuantifiedInterpolants, 2031048 SizeOfPredicates, 18 NumberOfNonLiveVariables, 4535 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 2489/2578 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...