/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label42.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 14:07:48,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 14:07:48,631 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 14:07:48,650 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 14:07:48,650 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 14:07:48,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 14:07:48,652 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 14:07:48,654 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 14:07:48,656 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 14:07:48,657 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 14:07:48,658 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 14:07:48,659 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 14:07:48,659 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 14:07:48,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 14:07:48,661 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 14:07:48,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 14:07:48,663 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 14:07:48,664 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 14:07:48,665 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 14:07:48,667 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 14:07:48,669 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 14:07:48,670 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 14:07:48,671 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 14:07:48,672 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 14:07:48,674 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 14:07:48,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 14:07:48,682 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 14:07:48,683 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 14:07:48,684 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 14:07:48,698 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 14:07:48,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 14:07:48,699 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 14:07:48,699 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 14:07:48,700 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 14:07:48,700 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 14:07:48,700 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 14:07:48,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 14:07:48,701 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 14:07:48,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 14:07:48,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 14:07:48,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 14:07:48,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 14:07:48,701 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 14:07:48,702 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 14:07:48,702 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 14:07:48,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 14:07:48,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 14:07:48,702 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 14:07:48,703 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 14:07:48,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 14:07:48,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 14:07:48,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 14:07:48,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 14:07:48,704 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 14:07:48,704 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 14:07:48,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:48,704 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 14:07:48,704 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 14:07:48,705 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS 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 14:07:49,003 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 14:07:49,016 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 14:07:49,019 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 14:07:49,021 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 14:07:49,021 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 14:07:49,022 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label42.c [2020-07-20 14:07:49,100 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad2ff1da7/d157a873c60f4f869844e30b67bbbde4/FLAG5f5053468 [2020-07-20 14:07:49,669 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 14:07:49,670 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label42.c [2020-07-20 14:07:49,691 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad2ff1da7/d157a873c60f4f869844e30b67bbbde4/FLAG5f5053468 [2020-07-20 14:07:49,999 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad2ff1da7/d157a873c60f4f869844e30b67bbbde4 [2020-07-20 14:07:50,009 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 14:07:50,012 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 14:07:50,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 14:07:50,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 14:07:50,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 14:07:50,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:07:50" (1/1) ... [2020-07-20 14:07:50,021 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@98ba6eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:07:50, skipping insertion in model container [2020-07-20 14:07:50,021 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:07:50" (1/1) ... [2020-07-20 14:07:50,029 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 14:07:50,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 14:07:50,602 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:07:50,607 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 14:07:50,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:07:50,738 INFO L208 MainTranslator]: Completed translation [2020-07-20 14:07:50,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:07:50 WrapperNode [2020-07-20 14:07:50,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 14:07:50,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 14:07:50,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 14:07:50,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 14:07:50,754 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:07:50" (1/1) ... [2020-07-20 14:07:50,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:07:50" (1/1) ... [2020-07-20 14:07:50,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:07:50" (1/1) ... [2020-07-20 14:07:50,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:07:50" (1/1) ... [2020-07-20 14:07:50,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:07:50" (1/1) ... [2020-07-20 14:07:50,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:07:50" (1/1) ... [2020-07-20 14:07:50,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:07:50" (1/1) ... [2020-07-20 14:07:50,843 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 14:07:50,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 14:07:50,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 14:07:50,844 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 14:07:50,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:07:50" (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 14:07:50,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 14:07:50,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 14:07:50,900 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 14:07:50,900 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 14:07:50,900 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 14:07:50,901 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 14:07:50,901 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 14:07:50,901 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 14:07:50,901 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 14:07:50,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 14:07:50,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 14:07:51,991 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 14:07:51,992 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 14:07:51,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:07:51 BoogieIcfgContainer [2020-07-20 14:07:51,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 14:07:51,999 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 14:07:52,000 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 14:07:52,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 14:07:52,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:07:50" (1/3) ... [2020-07-20 14:07:52,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@100a6176 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:07:52, skipping insertion in model container [2020-07-20 14:07:52,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:07:50" (2/3) ... [2020-07-20 14:07:52,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@100a6176 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:07:52, skipping insertion in model container [2020-07-20 14:07:52,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:07:51" (3/3) ... [2020-07-20 14:07:52,006 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label42.c [2020-07-20 14:07:52,016 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 14:07:52,024 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 14:07:52,038 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 14:07:52,063 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 14:07:52,063 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 14:07:52,063 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 14:07:52,063 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 14:07:52,065 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 14:07:52,065 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 14:07:52,065 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 14:07:52,065 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 14:07:52,089 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-20 14:07:52,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-07-20 14:07:52,101 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:52,102 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:07:52,103 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:52,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:52,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1304641474, now seen corresponding path program 1 times [2020-07-20 14:07:52,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:52,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [294521755] [2020-07-20 14:07:52,120 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 14:07:52,284 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:52,284 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:52,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:07:52,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:52,389 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 14:07:52,390 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:07:52,391 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [294521755] [2020-07-20 14:07:52,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:07:52,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:07:52,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018541535] [2020-07-20 14:07:52,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:07:52,399 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:52,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:07:52,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:07:52,416 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-20 14:07:53,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:53,293 INFO L93 Difference]: Finished difference Result 619 states and 1060 transitions. [2020-07-20 14:07:53,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:07:53,295 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-07-20 14:07:53,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:53,314 INFO L225 Difference]: With dead ends: 619 [2020-07-20 14:07:53,314 INFO L226 Difference]: Without dead ends: 321 [2020-07-20 14:07:53,322 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 104 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 14:07:53,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-07-20 14:07:53,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2020-07-20 14:07:53,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-07-20 14:07:53,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 421 transitions. [2020-07-20 14:07:53,386 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 421 transitions. Word has length 106 [2020-07-20 14:07:53,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:53,387 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 421 transitions. [2020-07-20 14:07:53,387 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:07:53,388 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 421 transitions. [2020-07-20 14:07:53,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-07-20 14:07:53,393 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:53,393 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:07:53,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:53,607 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:53,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:53,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1103480815, now seen corresponding path program 1 times [2020-07-20 14:07:53,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:53,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [126157311] [2020-07-20 14:07:53,610 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 14:07:53,713 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:53,713 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:53,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:07:53,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:53,779 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:07:53,779 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:07:53,779 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [126157311] [2020-07-20 14:07:53,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:07:53,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:07:53,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704432237] [2020-07-20 14:07:53,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:07:53,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:53,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:07:53,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:07:53,785 INFO L87 Difference]: Start difference. First operand 319 states and 421 transitions. Second operand 3 states. [2020-07-20 14:07:54,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:54,418 INFO L93 Difference]: Finished difference Result 782 states and 1068 transitions. [2020-07-20 14:07:54,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:07:54,419 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2020-07-20 14:07:54,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:54,425 INFO L225 Difference]: With dead ends: 782 [2020-07-20 14:07:54,425 INFO L226 Difference]: Without dead ends: 469 [2020-07-20 14:07:54,427 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 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 14:07:54,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-07-20 14:07:54,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2020-07-20 14:07:54,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2020-07-20 14:07:54,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 600 transitions. [2020-07-20 14:07:54,463 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 600 transitions. Word has length 115 [2020-07-20 14:07:54,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:54,464 INFO L479 AbstractCegarLoop]: Abstraction has 469 states and 600 transitions. [2020-07-20 14:07:54,464 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:07:54,465 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 600 transitions. [2020-07-20 14:07:54,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-07-20 14:07:54,469 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:54,469 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:07:54,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:54,683 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:54,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:54,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1785081447, now seen corresponding path program 1 times [2020-07-20 14:07:54,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:54,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1988859323] [2020-07-20 14:07:54,684 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 14:07:54,805 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:54,807 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:54,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 14:07:54,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:54,884 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 14:07:54,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:07:54,964 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 14:07:54,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1988859323] [2020-07-20 14:07:54,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 14:07:54,965 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-07-20 14:07:54,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546045246] [2020-07-20 14:07:54,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 14:07:54,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:54,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 14:07:54,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:07:54,967 INFO L87 Difference]: Start difference. First operand 469 states and 600 transitions. Second operand 4 states. [2020-07-20 14:07:55,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:55,650 INFO L93 Difference]: Finished difference Result 1386 states and 1800 transitions. [2020-07-20 14:07:55,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 14:07:55,651 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 127 [2020-07-20 14:07:55,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:55,658 INFO L225 Difference]: With dead ends: 1386 [2020-07-20 14:07:55,658 INFO L226 Difference]: Without dead ends: 923 [2020-07-20 14:07:55,660 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 246 SyntacticMatches, 4 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:07:55,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2020-07-20 14:07:55,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 923. [2020-07-20 14:07:55,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 923 states. [2020-07-20 14:07:55,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1177 transitions. [2020-07-20 14:07:55,711 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1177 transitions. Word has length 127 [2020-07-20 14:07:55,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:55,712 INFO L479 AbstractCegarLoop]: Abstraction has 923 states and 1177 transitions. [2020-07-20 14:07:55,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 14:07:55,712 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1177 transitions. [2020-07-20 14:07:55,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-07-20 14:07:55,718 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:55,719 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:07:55,933 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:55,934 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:55,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:55,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1788893684, now seen corresponding path program 1 times [2020-07-20 14:07:55,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:55,936 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2017670176] [2020-07-20 14:07:55,937 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 14:07:56,035 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:56,036 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:56,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:07:56,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:56,094 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 14:07:56,094 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:07:56,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2017670176] [2020-07-20 14:07:56,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:07:56,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:07:56,097 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141505478] [2020-07-20 14:07:56,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:07:56,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:56,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:07:56,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:07:56,099 INFO L87 Difference]: Start difference. First operand 923 states and 1177 transitions. Second operand 3 states. [2020-07-20 14:07:56,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:56,657 INFO L93 Difference]: Finished difference Result 2130 states and 2809 transitions. [2020-07-20 14:07:56,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:07:56,658 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2020-07-20 14:07:56,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:56,669 INFO L225 Difference]: With dead ends: 2130 [2020-07-20 14:07:56,669 INFO L226 Difference]: Without dead ends: 1213 [2020-07-20 14:07:56,671 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 14:07:56,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2020-07-20 14:07:56,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 1211. [2020-07-20 14:07:56,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1211 states. [2020-07-20 14:07:56,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1211 states to 1211 states and 1581 transitions. [2020-07-20 14:07:56,731 INFO L78 Accepts]: Start accepts. Automaton has 1211 states and 1581 transitions. Word has length 135 [2020-07-20 14:07:56,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:56,732 INFO L479 AbstractCegarLoop]: Abstraction has 1211 states and 1581 transitions. [2020-07-20 14:07:56,732 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:07:56,732 INFO L276 IsEmpty]: Start isEmpty. Operand 1211 states and 1581 transitions. [2020-07-20 14:07:56,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-07-20 14:07:56,741 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:56,742 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:07:56,956 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:56,957 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:56,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:56,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1477599978, now seen corresponding path program 1 times [2020-07-20 14:07:56,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:56,959 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1874715245] [2020-07-20 14:07:56,960 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 14:07:57,093 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:57,096 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:57,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 14:07:57,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:57,140 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-07-20 14:07:57,141 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:07:57,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1874715245] [2020-07-20 14:07:57,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:07:57,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:07:57,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598232325] [2020-07-20 14:07:57,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:07:57,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:57,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:07:57,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:07:57,144 INFO L87 Difference]: Start difference. First operand 1211 states and 1581 transitions. Second operand 5 states. [2020-07-20 14:07:57,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:57,938 INFO L93 Difference]: Finished difference Result 3660 states and 5049 transitions. [2020-07-20 14:07:57,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 14:07:57,939 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 141 [2020-07-20 14:07:57,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:57,956 INFO L225 Difference]: With dead ends: 3660 [2020-07-20 14:07:57,956 INFO L226 Difference]: Without dead ends: 2455 [2020-07-20 14:07:57,961 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:07:57,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2455 states. [2020-07-20 14:07:58,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2455 to 2423. [2020-07-20 14:07:58,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2423 states. [2020-07-20 14:07:58,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2423 states to 2423 states and 3127 transitions. [2020-07-20 14:07:58,073 INFO L78 Accepts]: Start accepts. Automaton has 2423 states and 3127 transitions. Word has length 141 [2020-07-20 14:07:58,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:58,073 INFO L479 AbstractCegarLoop]: Abstraction has 2423 states and 3127 transitions. [2020-07-20 14:07:58,074 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:07:58,074 INFO L276 IsEmpty]: Start isEmpty. Operand 2423 states and 3127 transitions. [2020-07-20 14:07:58,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-07-20 14:07:58,085 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:58,086 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:07:58,299 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:58,300 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:58,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:58,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1971043980, now seen corresponding path program 1 times [2020-07-20 14:07:58,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:58,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [887752756] [2020-07-20 14:07:58,301 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 14:07:58,410 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:58,410 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:58,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:07:58,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:58,452 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-20 14:07:58,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:07:58,516 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 51 proven. 18 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-20 14:07:58,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [887752756] [2020-07-20 14:07:58,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:07:58,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 14:07:58,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638458586] [2020-07-20 14:07:58,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 14:07:58,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:58,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 14:07:58,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:07:58,519 INFO L87 Difference]: Start difference. First operand 2423 states and 3127 transitions. Second operand 6 states. [2020-07-20 14:07:59,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:59,374 INFO L93 Difference]: Finished difference Result 5334 states and 6898 transitions. [2020-07-20 14:07:59,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:07:59,374 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 157 [2020-07-20 14:07:59,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:59,391 INFO L225 Difference]: With dead ends: 5334 [2020-07-20 14:07:59,392 INFO L226 Difference]: Without dead ends: 2608 [2020-07-20 14:07:59,408 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 310 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 14:07:59,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2608 states. [2020-07-20 14:07:59,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2608 to 2600. [2020-07-20 14:07:59,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2600 states. [2020-07-20 14:07:59,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2600 states to 2600 states and 3065 transitions. [2020-07-20 14:07:59,490 INFO L78 Accepts]: Start accepts. Automaton has 2600 states and 3065 transitions. Word has length 157 [2020-07-20 14:07:59,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:59,490 INFO L479 AbstractCegarLoop]: Abstraction has 2600 states and 3065 transitions. [2020-07-20 14:07:59,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 14:07:59,490 INFO L276 IsEmpty]: Start isEmpty. Operand 2600 states and 3065 transitions. [2020-07-20 14:07:59,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-20 14:07:59,498 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:59,498 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:07:59,713 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:59,713 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:59,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:59,713 INFO L82 PathProgramCache]: Analyzing trace with hash -218912508, now seen corresponding path program 1 times [2020-07-20 14:07:59,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:59,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2102861413] [2020-07-20 14:07:59,714 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 14:07:59,821 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:59,821 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:59,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:07:59,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:59,864 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 76 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 14:07:59,864 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:07:59,930 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 76 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 14:07:59,931 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2102861413] [2020-07-20 14:07:59,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:07:59,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 14:07:59,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858926180] [2020-07-20 14:07:59,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 14:07:59,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:59,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 14:07:59,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:07:59,933 INFO L87 Difference]: Start difference. First operand 2600 states and 3065 transitions. Second operand 7 states. [2020-07-20 14:08:01,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:01,078 INFO L93 Difference]: Finished difference Result 6492 states and 7667 transitions. [2020-07-20 14:08:01,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 14:08:01,079 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 161 [2020-07-20 14:08:01,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:01,092 INFO L225 Difference]: With dead ends: 6492 [2020-07-20 14:08:01,093 INFO L226 Difference]: Without dead ends: 2721 [2020-07-20 14:08:01,101 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 317 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 14:08:01,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2721 states. [2020-07-20 14:08:01,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2721 to 2721. [2020-07-20 14:08:01,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2721 states. [2020-07-20 14:08:01,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2721 states to 2721 states and 3106 transitions. [2020-07-20 14:08:01,162 INFO L78 Accepts]: Start accepts. Automaton has 2721 states and 3106 transitions. Word has length 161 [2020-07-20 14:08:01,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:01,162 INFO L479 AbstractCegarLoop]: Abstraction has 2721 states and 3106 transitions. [2020-07-20 14:08:01,163 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 14:08:01,163 INFO L276 IsEmpty]: Start isEmpty. Operand 2721 states and 3106 transitions. [2020-07-20 14:08:01,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-07-20 14:08:01,169 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:08:01,170 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:08:01,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:01,384 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:08:01,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:08:01,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1598036036, now seen corresponding path program 1 times [2020-07-20 14:08:01,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:08:01,385 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1153218998] [2020-07-20 14:08:01,385 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 14:08:01,485 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:08:01,485 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:08:01,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:08:01,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:08:01,534 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 67 proven. 15 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-20 14:08:01,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:08:01,665 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 80 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-20 14:08:01,665 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1153218998] [2020-07-20 14:08:01,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:08:01,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-07-20 14:08:01,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105482562] [2020-07-20 14:08:01,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:08:01,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:08:01,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:08:01,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:08:01,668 INFO L87 Difference]: Start difference. First operand 2721 states and 3106 transitions. Second operand 5 states. [2020-07-20 14:08:02,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:02,315 INFO L93 Difference]: Finished difference Result 5364 states and 6318 transitions. [2020-07-20 14:08:02,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 14:08:02,317 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-07-20 14:08:02,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:02,330 INFO L225 Difference]: With dead ends: 5364 [2020-07-20 14:08:02,330 INFO L226 Difference]: Without dead ends: 2793 [2020-07-20 14:08:02,340 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 330 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:08:02,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2793 states. [2020-07-20 14:08:02,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2793 to 2577. [2020-07-20 14:08:02,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2577 states. [2020-07-20 14:08:02,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2577 states to 2577 states and 2819 transitions. [2020-07-20 14:08:02,417 INFO L78 Accepts]: Start accepts. Automaton has 2577 states and 2819 transitions. Word has length 168 [2020-07-20 14:08:02,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:02,417 INFO L479 AbstractCegarLoop]: Abstraction has 2577 states and 2819 transitions. [2020-07-20 14:08:02,417 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:08:02,417 INFO L276 IsEmpty]: Start isEmpty. Operand 2577 states and 2819 transitions. [2020-07-20 14:08:02,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-07-20 14:08:02,424 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:08:02,424 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:08:02,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:02,638 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:08:02,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:08:02,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1286736905, now seen corresponding path program 1 times [2020-07-20 14:08:02,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:08:02,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1564942374] [2020-07-20 14:08:02,640 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 14:08:02,766 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:08:02,766 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:08:02,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:08:02,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:08:02,815 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 119 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-07-20 14:08:02,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:08:02,925 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 119 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-07-20 14:08:02,926 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1564942374] [2020-07-20 14:08:02,926 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:08:02,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 14:08:02,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201202080] [2020-07-20 14:08:02,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 14:08:02,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:08:02,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 14:08:02,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:08:02,933 INFO L87 Difference]: Start difference. First operand 2577 states and 2819 transitions. Second operand 7 states. [2020-07-20 14:08:04,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:04,010 INFO L93 Difference]: Finished difference Result 4858 states and 5317 transitions. [2020-07-20 14:08:04,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-20 14:08:04,016 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 188 [2020-07-20 14:08:04,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:04,024 INFO L225 Difference]: With dead ends: 4858 [2020-07-20 14:08:04,024 INFO L226 Difference]: Without dead ends: 2431 [2020-07-20 14:08:04,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 374 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-20 14:08:04,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2431 states. [2020-07-20 14:08:04,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2431 to 2415. [2020-07-20 14:08:04,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2415 states. [2020-07-20 14:08:04,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2415 states to 2415 states and 2564 transitions. [2020-07-20 14:08:04,076 INFO L78 Accepts]: Start accepts. Automaton has 2415 states and 2564 transitions. Word has length 188 [2020-07-20 14:08:04,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:04,085 INFO L479 AbstractCegarLoop]: Abstraction has 2415 states and 2564 transitions. [2020-07-20 14:08:04,085 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 14:08:04,085 INFO L276 IsEmpty]: Start isEmpty. Operand 2415 states and 2564 transitions. [2020-07-20 14:08:04,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-07-20 14:08:04,092 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:08:04,092 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-07-20 14:08:04,307 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:04,308 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:08:04,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:08:04,309 INFO L82 PathProgramCache]: Analyzing trace with hash -44633951, now seen corresponding path program 1 times [2020-07-20 14:08:04,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:08:04,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1623595992] [2020-07-20 14:08:04,310 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 14:08:04,462 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:08:04,463 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:08:04,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:08:04,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:08:04,510 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 123 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 14:08:04,510 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:08:04,624 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 123 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 14:08:04,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1623595992] [2020-07-20 14:08:04,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:08:04,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 14:08:04,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598969516] [2020-07-20 14:08:04,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 14:08:04,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:08:04,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 14:08:04,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:08:04,627 INFO L87 Difference]: Start difference. First operand 2415 states and 2564 transitions. Second operand 6 states. [2020-07-20 14:08:04,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:04,993 INFO L93 Difference]: Finished difference Result 4666 states and 4959 transitions. [2020-07-20 14:08:04,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 14:08:04,994 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 195 [2020-07-20 14:08:04,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:05,002 INFO L225 Difference]: With dead ends: 4666 [2020-07-20 14:08:05,002 INFO L226 Difference]: Without dead ends: 2401 [2020-07-20 14:08:05,007 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 384 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:08:05,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2401 states. [2020-07-20 14:08:05,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2401 to 2257. [2020-07-20 14:08:05,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2257 states. [2020-07-20 14:08:05,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2257 states to 2257 states and 2375 transitions. [2020-07-20 14:08:05,050 INFO L78 Accepts]: Start accepts. Automaton has 2257 states and 2375 transitions. Word has length 195 [2020-07-20 14:08:05,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:05,050 INFO L479 AbstractCegarLoop]: Abstraction has 2257 states and 2375 transitions. [2020-07-20 14:08:05,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 14:08:05,051 INFO L276 IsEmpty]: Start isEmpty. Operand 2257 states and 2375 transitions. [2020-07-20 14:08:05,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-07-20 14:08:05,058 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:08:05,058 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:08:05,272 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:05,273 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:08:05,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:08:05,273 INFO L82 PathProgramCache]: Analyzing trace with hash 695276175, now seen corresponding path program 1 times [2020-07-20 14:08:05,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:08:05,273 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [296115650] [2020-07-20 14:08:05,274 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 14:08:05,408 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:08:05,408 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:08:05,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 14:08:05,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:08:05,479 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 126 proven. 2 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2020-07-20 14:08:05,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:08:05,562 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 137 proven. 54 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-07-20 14:08:05,562 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [296115650] [2020-07-20 14:08:05,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:08:05,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 14:08:05,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118147181] [2020-07-20 14:08:05,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 14:08:05,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:08:05,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 14:08:05,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:08:05,564 INFO L87 Difference]: Start difference. First operand 2257 states and 2375 transitions. Second operand 7 states. [2020-07-20 14:08:06,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:08:06,567 INFO L93 Difference]: Finished difference Result 4794 states and 5045 transitions. [2020-07-20 14:08:06,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 14:08:06,568 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 236 [2020-07-20 14:08:06,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:08:06,568 INFO L225 Difference]: With dead ends: 4794 [2020-07-20 14:08:06,568 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 14:08:06,576 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 468 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 14:08:06,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 14:08:06,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 14:08:06,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 14:08:06,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 14:08:06,577 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 236 [2020-07-20 14:08:06,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:08:06,577 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 14:08:06,577 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 14:08:06,577 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 14:08:06,577 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 14:08:06,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:06,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 14:08:08,782 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 126 DAG size of output: 86 [2020-07-20 14:08:09,311 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2020-07-20 14:08:09,817 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2020-07-20 14:08:09,822 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:08:09,822 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (or (<= ~a11~0 0) (< 0 |old(~a11~0)|)) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) [2020-07-20 14:08:09,822 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:08:09,822 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,823 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,823 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,823 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,823 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,823 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-20 14:08:09,823 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-20 14:08:09,824 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-20 14:08:09,824 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-20 14:08:09,824 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-20 14:08:09,824 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-20 14:08:09,824 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-20 14:08:09,824 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-20 14:08:09,824 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-20 14:08:09,824 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-20 14:08:09,824 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-20 14:08:09,825 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-20 14:08:09,825 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-20 14:08:09,825 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,825 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,825 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,825 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,825 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-20 14:08:09,825 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,825 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-20 14:08:09,825 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-20 14:08:09,825 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-20 14:08:09,825 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-20 14:08:09,826 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-20 14:08:09,826 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-20 14:08:09,826 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-20 14:08:09,826 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-20 14:08:09,826 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-20 14:08:09,826 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-20 14:08:09,826 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-20 14:08:09,826 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-20 14:08:09,827 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-20 14:08:09,827 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-20 14:08:09,827 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-20 14:08:09,827 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,827 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,827 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,827 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,827 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,828 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 472) no Hoare annotation was computed. [2020-07-20 14:08:09,828 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-20 14:08:09,828 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-20 14:08:09,828 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-20 14:08:09,828 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-20 14:08:09,828 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-20 14:08:09,828 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-20 14:08:09,828 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-20 14:08:09,828 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-20 14:08:09,829 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-20 14:08:09,829 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-20 14:08:09,829 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-20 14:08:09,829 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,829 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,829 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,829 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,829 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,830 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-20 14:08:09,830 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-20 14:08:09,830 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-20 14:08:09,830 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-20 14:08:09,830 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-20 14:08:09,830 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-20 14:08:09,830 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-20 14:08:09,830 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-20 14:08:09,830 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-20 14:08:09,831 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-20 14:08:09,831 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-20 14:08:09,831 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-20 14:08:09,831 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-20 14:08:09,831 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,831 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,831 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,831 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,831 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,832 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-20 14:08:09,832 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-20 14:08:09,832 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-20 14:08:09,832 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-20 14:08:09,832 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-20 14:08:09,832 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-20 14:08:09,832 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-20 14:08:09,832 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-20 14:08:09,832 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-20 14:08:09,833 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-20 14:08:09,833 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-20 14:08:09,833 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-20 14:08:09,833 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-20 14:08:09,833 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-20 14:08:09,833 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-20 14:08:09,833 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-20 14:08:09,833 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,833 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,833 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,834 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,834 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-20 14:08:09,834 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,834 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-20 14:08:09,834 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,834 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-20 14:08:09,834 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-20 14:08:09,834 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-20 14:08:09,835 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,835 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,835 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-20 14:08:09,835 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-20 14:08:09,835 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-20 14:08:09,835 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-20 14:08:09,835 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-20 14:08:09,835 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-20 14:08:09,835 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-20 14:08:09,836 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-20 14:08:09,836 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-20 14:08:09,836 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-20 14:08:09,836 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-20 14:08:09,836 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,836 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,836 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,836 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,836 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,836 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,837 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-20 14:08:09,837 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-20 14:08:09,837 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-20 14:08:09,837 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-20 14:08:09,837 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-20 14:08:09,837 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-20 14:08:09,837 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-20 14:08:09,837 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-20 14:08:09,837 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-20 14:08:09,837 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-20 14:08:09,837 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-20 14:08:09,837 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,837 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,837 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,838 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,838 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,838 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,838 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-20 14:08:09,838 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-20 14:08:09,838 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-20 14:08:09,838 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-20 14:08:09,838 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-20 14:08:09,838 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-20 14:08:09,838 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-20 14:08:09,838 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-20 14:08:09,838 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-20 14:08:09,838 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-20 14:08:09,839 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-20 14:08:09,839 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-20 14:08:09,839 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-20 14:08:09,839 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-20 14:08:09,839 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,839 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,839 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,840 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse8 (<= ~a28~0 |old(~a28~0)|)) (.cse9 (<= ~a17~0 8)) (.cse15 (<= 8 ~a17~0)) (.cse3 (<= 10 ~a28~0)) (.cse10 (= ~a19~0 |old(~a19~0)|)) (.cse24 (= 1 ~a25~0)) (.cse4 (<= ~a11~0 0))) (let ((.cse22 (not (<= |old(~a28~0)| 8))) (.cse14 (or .cse4 (< 0 |old(~a11~0)|))) (.cse0 (not (<= |old(~a28~0)| 10))) (.cse21 (<= ~a17~0 |old(~a17~0)|)) (.cse5 (not (<= 9 |old(~a28~0)|))) (.cse16 (< ~a28~0 10)) (.cse17 (<= 9 ~a28~0)) (.cse11 (= ~a25~0 |old(~a25~0)|)) (.cse20 (not (< |old(~a28~0)| 10))) (.cse1 (not (<= |old(~a17~0)| 7))) (.cse7 (not (= 1 |old(~a19~0)|))) (.cse12 (not (<= |old(~a28~0)| 7))) (.cse23 (not (= 1 |old(~a25~0)|))) (.cse18 (not (<= 8 |old(~a17~0)|))) (.cse19 (not (<= |old(~a19~0)| 0))) (.cse2 (not (<= 10 |old(~a28~0)|))) (.cse25 (and .cse4 .cse8 .cse9 .cse15 .cse3 .cse10 .cse24)) (.cse13 (not (<= |old(~a17~0)| 8))) (.cse6 (not (<= |old(~a11~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse5 .cse1 .cse6) (or .cse7 (and .cse4 .cse8 .cse9 .cse10 .cse11) .cse12 .cse13 .cse6) (or (and .cse14 .cse9 .cse15 .cse10 .cse16 .cse17 .cse11) .cse5 .cse18 .cse19 .cse13 .cse20) (or .cse0 .cse5 (and .cse21 .cse8 .cse10 .cse17) .cse1) (or .cse22 .cse18 .cse19 (and .cse8 .cse14 .cse9 .cse15 .cse10 .cse11) .cse13) (or .cse7 .cse4 .cse5 .cse13 .cse6 .cse20) (or .cse7 .cse22 .cse18 .cse23 (and .cse4 .cse9 .cse15 (<= ~a28~0 8) .cse10 .cse24) .cse13 .cse6) (or .cse7 .cse18 .cse23 .cse25 .cse2 .cse13 .cse6) (or .cse7 (and .cse14 (<= ~a28~0 10) .cse3 .cse10) .cse0 .cse2) (or .cse7 .cse4 .cse1 .cse6) (or .cse7 .cse1 (and .cse21 .cse8 .cse10)) (or .cse7 .cse5 .cse18 (and .cse9 .cse15 .cse10 .cse16 .cse17 .cse11) .cse13 .cse20) (or .cse7 .cse1 .cse2 .cse3) (or .cse7 (and .cse8 .cse9 .cse15 .cse10 .cse24) .cse12 .cse18 .cse23 .cse13) (or .cse23 .cse18 .cse19 .cse2 .cse25 .cse13 .cse6)))) [2020-07-20 14:08:09,840 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,840 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,840 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,840 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-20 14:08:09,840 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-20 14:08:09,840 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-20 14:08:09,840 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-20 14:08:09,840 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-20 14:08:09,840 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-20 14:08:09,840 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-20 14:08:09,840 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-20 14:08:09,840 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-20 14:08:09,841 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-20 14:08:09,841 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-20 14:08:09,841 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-20 14:08:09,841 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-20 14:08:09,841 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,841 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,841 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,841 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,841 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,841 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,841 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-20 14:08:09,842 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-20 14:08:09,842 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-20 14:08:09,842 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-20 14:08:09,842 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-20 14:08:09,842 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-20 14:08:09,842 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-20 14:08:09,842 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-20 14:08:09,842 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-20 14:08:09,842 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-20 14:08:09,842 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-20 14:08:09,842 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-20 14:08:09,842 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-20 14:08:09,842 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-20 14:08:09,843 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-20 14:08:09,843 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-20 14:08:09,843 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,843 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,843 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,843 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,843 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:08:09,843 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-20 14:08:09,843 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-20 14:08:09,843 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-20 14:08:09,843 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-20 14:08:09,843 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-20 14:08:09,843 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-20 14:08:09,843 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-20 14:08:09,844 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-20 14:08:09,844 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-20 14:08:09,844 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-20 14:08:09,844 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-20 14:08:09,844 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-20 14:08:09,844 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-20 14:08:09,844 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-20 14:08:09,844 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-20 14:08:09,844 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-20 14:08:09,844 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-20 14:08:09,844 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-20 14:08:09,845 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-20 14:08:09,845 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:08:09,845 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= ~a28~0 7)) [2020-07-20 14:08:09,845 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 14:08:09,845 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:08:09,845 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0))) [2020-07-20 14:08:09,845 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse6 (<= 8 ~a17~0)) (.cse2 (= 1 ~a19~0)) (.cse5 (<= ~a17~0 |old(~a17~0)|)) (.cse11 (<= ~a11~0 0)) (.cse13 (<= ~a28~0 7))) (let ((.cse3 (<= ~a17~0 7)) (.cse4 (< 7 |old(~a17~0)|)) (.cse9 (<= 9 ~a28~0)) (.cse0 (or (and .cse2 .cse5 .cse11 .cse6 .cse13) (and .cse2 .cse5 .cse11 (<= ~a28~0 |old(~a28~0)|) (<= ~a19~0 |old(~a19~0)|) .cse13))) (.cse1 (= 1 ~a25~0)) (.cse10 (<= ~a28~0 10)) (.cse7 (not (= 1 |old(~a25~0)|))) (.cse8 (< ~a28~0 10)) (.cse12 (<= ~a19~0 0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1) (and .cse2 .cse3 .cse4) (not (<= |old(~a28~0)| 7)) (and .cse2 .cse5 .cse6 .cse7 .cse8 .cse9) (not (<= |old(~a11~0)| 0)) (and .cse10 .cse3 .cse4 .cse9) (and .cse5 .cse11 .cse6 .cse7 .cse12 .cse1) (and .cse0 (= ~a25~0 |old(~a25~0)|)) (and .cse2 .cse5 .cse11 .cse6 .cse7 .cse1) (and .cse2 .cse5 .cse6 .cse7 .cse13 .cse1) (not (<= |old(~a17~0)| 8)) (and .cse2 .cse10 (<= 10 ~a28~0)) (and .cse5 .cse6 .cse7 .cse8 .cse12)))) [2020-07-20 14:08:09,846 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-20 14:08:09,846 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-20 14:08:09,846 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse6 (<= 8 ~a17~0)) (.cse2 (= 1 ~a19~0)) (.cse5 (<= ~a17~0 |old(~a17~0)|)) (.cse11 (<= ~a11~0 0)) (.cse13 (<= ~a28~0 7))) (let ((.cse3 (<= ~a17~0 7)) (.cse4 (< 7 |old(~a17~0)|)) (.cse9 (<= 9 ~a28~0)) (.cse0 (or (and .cse2 .cse5 .cse11 .cse6 .cse13) (and .cse2 .cse5 .cse11 (<= ~a28~0 |old(~a28~0)|) (<= ~a19~0 |old(~a19~0)|) .cse13))) (.cse1 (= 1 ~a25~0)) (.cse10 (<= ~a28~0 10)) (.cse7 (not (= 1 |old(~a25~0)|))) (.cse8 (< ~a28~0 10)) (.cse12 (<= ~a19~0 0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1) (and .cse2 .cse3 .cse4) (not (<= |old(~a28~0)| 7)) (and .cse2 .cse5 .cse6 .cse7 .cse8 .cse9) (not (<= |old(~a11~0)| 0)) (and .cse10 .cse3 .cse4 .cse9) (and .cse5 .cse11 .cse6 .cse7 .cse12 .cse1) (and .cse0 (= ~a25~0 |old(~a25~0)|)) (and .cse2 .cse5 .cse11 .cse6 .cse7 .cse1) (and .cse2 .cse5 .cse6 .cse7 .cse13 .cse1) (not (<= |old(~a17~0)| 8)) (and .cse2 .cse10 (<= 10 ~a28~0)) (and .cse5 .cse6 .cse7 .cse8 .cse12)))) [2020-07-20 14:08:09,846 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-20 14:08:09,846 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-20 14:08:09,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 02:08:09 BoogieIcfgContainer [2020-07-20 14:08:09,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 14:08:09,871 INFO L168 Benchmark]: Toolchain (without parser) took 19860.61 ms. Allocated memory was 145.2 MB in the beginning and 541.6 MB in the end (delta: 396.4 MB). Free memory was 101.1 MB in the beginning and 296.7 MB in the end (delta: -195.5 MB). Peak memory consumption was 367.0 MB. Max. memory is 7.1 GB. [2020-07-20 14:08:09,872 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 145.2 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-20 14:08:09,872 INFO L168 Benchmark]: CACSL2BoogieTranslator took 725.68 ms. Allocated memory was 145.2 MB in the beginning and 205.0 MB in the end (delta: 59.8 MB). Free memory was 100.7 MB in the beginning and 171.1 MB in the end (delta: -70.4 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. [2020-07-20 14:08:09,873 INFO L168 Benchmark]: Boogie Preprocessor took 104.32 ms. Allocated memory is still 205.0 MB. Free memory was 171.1 MB in the beginning and 166.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-20 14:08:09,874 INFO L168 Benchmark]: RCFGBuilder took 1154.21 ms. Allocated memory was 205.0 MB in the beginning and 237.5 MB in the end (delta: 32.5 MB). Free memory was 166.2 MB in the beginning and 181.7 MB in the end (delta: -15.5 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. [2020-07-20 14:08:09,875 INFO L168 Benchmark]: TraceAbstraction took 17869.95 ms. Allocated memory was 237.5 MB in the beginning and 541.6 MB in the end (delta: 304.1 MB). Free memory was 181.7 MB in the beginning and 296.7 MB in the end (delta: -115.0 MB). Peak memory consumption was 355.3 MB. Max. memory is 7.1 GB. [2020-07-20 14:08:09,878 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 145.2 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 725.68 ms. Allocated memory was 145.2 MB in the beginning and 205.0 MB in the end (delta: 59.8 MB). Free memory was 100.7 MB in the beginning and 171.1 MB in the end (delta: -70.4 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.32 ms. Allocated memory is still 205.0 MB. Free memory was 171.1 MB in the beginning and 166.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1154.21 ms. Allocated memory was 205.0 MB in the beginning and 237.5 MB in the end (delta: 32.5 MB). Free memory was 166.2 MB in the beginning and 181.7 MB in the end (delta: -15.5 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17869.95 ms. Allocated memory was 237.5 MB in the beginning and 541.6 MB in the end (delta: 304.1 MB). Free memory was 181.7 MB in the beginning and 296.7 MB in the end (delta: -115.0 MB). Peak memory consumption was 355.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 472]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((((((((!(1 == \old(a19)) || ((((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && 8 <= a17) && a28 <= 7) || (((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && a28 <= \old(a28)) && a19 <= \old(a19)) && a28 <= 7)) && 1 == a25)) || ((1 == a19 && a17 <= 7) && 7 < \old(a17))) || !(\old(a28) <= 7)) || (((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && !(1 == \old(a25))) && a28 < 10) && 9 <= a28)) || !(\old(a11) <= 0)) || (((a28 <= 10 && a17 <= 7) && 7 < \old(a17)) && 9 <= a28)) || (((((a17 <= \old(a17) && a11 <= 0) && 8 <= a17) && !(1 == \old(a25))) && a19 <= 0) && 1 == a25)) || ((((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && 8 <= a17) && a28 <= 7) || (((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && a28 <= \old(a28)) && a19 <= \old(a19)) && a28 <= 7)) && a25 == \old(a25))) || (((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && 8 <= a17) && !(1 == \old(a25))) && 1 == a25)) || (((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && !(1 == \old(a25))) && a28 <= 7) && 1 == a25)) || !(\old(a17) <= 8)) || ((1 == a19 && a28 <= 10) && 10 <= a28)) || ((((a17 <= \old(a17) && 8 <= a17) && !(1 == \old(a25))) && a28 < 10) && a19 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.7s, OverallIterations: 11, TraceHistogramMax: 5, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1024 SDtfs, 4663 SDslu, 550 SDs, 0 SdLazy, 6677 SolverSat, 1013 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2979 GetRequests, 2916 SyntacticMatches, 13 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2721occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 420 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 149 PreInvPairs, 203 NumberOfFragments, 1024 HoareAnnotationTreeSize, 149 FomulaSimplifications, 2471 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2112 FormulaSimplificationTreeSizeReductionInter, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1729 NumberOfCodeBlocks, 1729 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 2943 ConstructedInterpolants, 0 QuantifiedInterpolants, 949775 SizeOfPredicates, 15 NumberOfNonLiveVariables, 4667 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 18 InterpolantComputations, 5 PerfectInterpolantSequences, 1580/1698 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...