/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label34.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 22:51:01,560 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 22:51:01,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 22:51:01,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 22:51:01,600 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 22:51:01,602 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 22:51:01,603 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 22:51:01,604 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 22:51:01,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 22:51:01,611 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 22:51:01,614 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 22:51:01,616 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 22:51:01,617 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 22:51:01,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 22:51:01,621 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 22:51:01,636 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 22:51:01,637 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 22:51:01,638 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 22:51:01,639 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 22:51:01,675 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 22:51:01,675 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 22:51:01,678 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 22:51:01,678 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 22:51:01,678 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 22:51:01,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 22:51:01,679 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 22:51:01,680 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 22:51:01,680 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 22:51:01,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 22:51:01,680 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 22:51:01,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 22:51:01,681 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 22:51:01,681 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 22:51:01,681 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 22:51:01,681 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 22:51:01,682 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 22:51:01,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 22:51:01,682 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 22:51:01,684 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 22:51:01,684 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 22:51:01,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:51:01,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 22:51:01,685 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 22:51:01,687 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 22:51:01,687 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 22:51:01,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:01,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 22:51:01,687 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 22:51:01,688 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 22:51:01,984 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 22:51:01,996 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 22:51:01,999 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 22:51:02,000 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 22:51:02,001 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 22:51:02,001 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label34.c [2020-07-21 22:51:02,054 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ffbcc255/86480fb73ad14e8c83cac746c713f910/FLAG51b4a18c6 [2020-07-21 22:51:02,559 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 22:51:02,560 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label34.c [2020-07-21 22:51:02,585 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ffbcc255/86480fb73ad14e8c83cac746c713f910/FLAG51b4a18c6 [2020-07-21 22:51:02,843 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ffbcc255/86480fb73ad14e8c83cac746c713f910 [2020-07-21 22:51:02,851 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 22:51:02,854 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 22:51:02,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 22:51:02,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 22:51:02,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 22:51:02,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:51:02" (1/1) ... [2020-07-21 22:51:02,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@662a784d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:51:02, skipping insertion in model container [2020-07-21 22:51:02,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:51:02" (1/1) ... [2020-07-21 22:51:02,872 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 22:51:02,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 22:51:03,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:51:03,451 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 22:51:03,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:51:03,583 INFO L208 MainTranslator]: Completed translation [2020-07-21 22:51:03,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:51:03 WrapperNode [2020-07-21 22:51:03,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 22:51:03,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 22:51:03,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 22:51:03,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 22:51:03,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:51:03" (1/1) ... [2020-07-21 22:51:03,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:51:03" (1/1) ... [2020-07-21 22:51:03,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:51:03" (1/1) ... [2020-07-21 22:51:03,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:51:03" (1/1) ... [2020-07-21 22:51:03,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:51:03" (1/1) ... [2020-07-21 22:51:03,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:51:03" (1/1) ... [2020-07-21 22:51:03,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:51:03" (1/1) ... [2020-07-21 22:51:03,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 22:51:03,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 22:51:03,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 22:51:03,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 22:51:03,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:51:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:51:03,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 22:51:03,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 22:51:03,788 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 22:51:03,788 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 22:51:03,788 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 22:51:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 22:51:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 22:51:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 22:51:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 22:51:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 22:51:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 22:51:04,907 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 22:51:04,907 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 22:51:04,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:51:04 BoogieIcfgContainer [2020-07-21 22:51:04,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 22:51:04,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 22:51:04,915 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 22:51:04,918 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 22:51:04,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:51:02" (1/3) ... [2020-07-21 22:51:04,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5589824c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:51:04, skipping insertion in model container [2020-07-21 22:51:04,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:51:03" (2/3) ... [2020-07-21 22:51:04,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5589824c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:51:04, skipping insertion in model container [2020-07-21 22:51:04,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:51:04" (3/3) ... [2020-07-21 22:51:04,922 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label34.c [2020-07-21 22:51:04,931 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 22:51:04,938 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 22:51:04,951 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 22:51:04,977 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 22:51:04,977 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 22:51:04,977 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 22:51:04,977 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 22:51:04,978 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 22:51:04,978 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 22:51:04,978 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 22:51:04,978 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 22:51:05,001 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-21 22:51:05,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-07-21 22:51:05,014 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:05,015 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:51:05,015 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:05,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:05,022 INFO L82 PathProgramCache]: Analyzing trace with hash -2059241649, now seen corresponding path program 1 times [2020-07-21 22:51:05,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:05,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [977388398] [2020-07-21 22:51:05,032 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:05,214 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:51:05,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:05,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 68 conjunts are in the unsatisfiable core [2020-07-21 22:51:05,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:05,529 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 31 [2020-07-21 22:51:05,674 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 29 [2020-07-21 22:51:06,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:51:06,036 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:51:06,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [977388398] [2020-07-21 22:51:06,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:51:06,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-21 22:51:06,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200838318] [2020-07-21 22:51:06,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-21 22:51:06,045 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:06,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-21 22:51:06,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-07-21 22:51:06,062 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 11 states. [2020-07-21 22:51:07,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:07,769 INFO L93 Difference]: Finished difference Result 472 states and 791 transitions. [2020-07-21 22:51:07,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 22:51:07,772 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 111 [2020-07-21 22:51:07,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:07,784 INFO L225 Difference]: With dead ends: 472 [2020-07-21 22:51:07,785 INFO L226 Difference]: Without dead ends: 203 [2020-07-21 22:51:07,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=102, Invalid=170, Unknown=0, NotChecked=0, Total=272 [2020-07-21 22:51:07,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-07-21 22:51:07,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-07-21 22:51:07,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-07-21 22:51:07,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 275 transitions. [2020-07-21 22:51:07,856 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 275 transitions. Word has length 111 [2020-07-21 22:51:07,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:07,857 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 275 transitions. [2020-07-21 22:51:07,858 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-21 22:51:07,858 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 275 transitions. [2020-07-21 22:51:07,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-07-21 22:51:07,866 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:07,867 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:51:08,080 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:08,081 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:08,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:08,083 INFO L82 PathProgramCache]: Analyzing trace with hash -381409516, now seen corresponding path program 1 times [2020-07-21 22:51:08,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:08,084 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1327447981] [2020-07-21 22:51:08,084 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:08,181 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:51:08,181 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:08,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 48 conjunts are in the unsatisfiable core [2020-07-21 22:51:08,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:08,478 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 31 [2020-07-21 22:51:08,819 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:51:08,824 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 22:51:08,824 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 22:51:08,919 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:51:08,919 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:51:09,652 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2020-07-21 22:51:09,815 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 22:51:09,979 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 22:51:10,126 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-07-21 22:51:10,132 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 7 conjuncts [2020-07-21 22:51:10,134 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 6 conjuncts [2020-07-21 22:51:10,135 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 5 conjuncts [2020-07-21 22:51:10,137 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 4 conjuncts [2020-07-21 22:51:10,138 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:51:10,140 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 2 conjuncts [2020-07-21 22:51:10,144 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 5 conjuncts [2020-07-21 22:51:10,145 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 4 conjuncts [2020-07-21 22:51:10,147 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:51:10,154 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:51:10,156 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:51:10,158 INFO L501 QuantifierPusher]: Distributing 14 disjuncts over 3 conjuncts [2020-07-21 22:51:10,160 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:51:10,161 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:51:10,162 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:51:10,166 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:51:10,167 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:51:10,169 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:51:10,170 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:51:10,172 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:51:10,173 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:51:10,178 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:51:10,179 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:51:10,182 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:51:10,183 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:51:10,820 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 37 [2020-07-21 22:51:10,824 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 8, 6, 7, 1] term [2020-07-21 22:51:10,825 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:51:10,888 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:51:10,889 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:10,956 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:10,984 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:11,184 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:51:11,185 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1327447981] [2020-07-21 22:51:11,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:51:11,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 25 [2020-07-21 22:51:11,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333328303] [2020-07-21 22:51:11,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-07-21 22:51:11,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:11,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-07-21 22:51:11,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2020-07-21 22:51:11,202 INFO L87 Difference]: Start difference. First operand 203 states and 275 transitions. Second operand 25 states. [2020-07-21 22:51:12,322 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2020-07-21 22:51:12,867 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-07-21 22:51:13,181 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-07-21 22:51:13,715 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2020-07-21 22:51:13,949 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2020-07-21 22:51:14,401 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 22:51:16,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:16,852 INFO L93 Difference]: Finished difference Result 588 states and 878 transitions. [2020-07-21 22:51:16,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-07-21 22:51:16,854 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 119 [2020-07-21 22:51:16,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:16,868 INFO L225 Difference]: With dead ends: 588 [2020-07-21 22:51:16,868 INFO L226 Difference]: Without dead ends: 451 [2020-07-21 22:51:16,879 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 210 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=551, Invalid=1611, Unknown=0, NotChecked=0, Total=2162 [2020-07-21 22:51:16,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2020-07-21 22:51:16,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 417. [2020-07-21 22:51:16,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-07-21 22:51:16,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 548 transitions. [2020-07-21 22:51:16,939 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 548 transitions. Word has length 119 [2020-07-21 22:51:16,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:16,939 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 548 transitions. [2020-07-21 22:51:16,940 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-07-21 22:51:16,940 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 548 transitions. [2020-07-21 22:51:16,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-07-21 22:51:16,944 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:16,944 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:51:17,150 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:17,151 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:17,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:17,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1335140182, now seen corresponding path program 1 times [2020-07-21 22:51:17,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:17,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [299347923] [2020-07-21 22:51:17,153 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:17,306 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:51:17,306 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:17,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:51:17,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:17,337 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:51:17,337 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:51:17,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [299347923] [2020-07-21 22:51:17,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:51:17,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:51:17,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049076376] [2020-07-21 22:51:17,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:51:17,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:17,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:51:17,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:51:17,340 INFO L87 Difference]: Start difference. First operand 417 states and 548 transitions. Second operand 3 states. [2020-07-21 22:51:17,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:17,916 INFO L93 Difference]: Finished difference Result 1042 states and 1433 transitions. [2020-07-21 22:51:17,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:51:17,921 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2020-07-21 22:51:17,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:17,930 INFO L225 Difference]: With dead ends: 1042 [2020-07-21 22:51:17,930 INFO L226 Difference]: Without dead ends: 691 [2020-07-21 22:51:17,933 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:51:17,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2020-07-21 22:51:17,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 691. [2020-07-21 22:51:17,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2020-07-21 22:51:17,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 897 transitions. [2020-07-21 22:51:17,973 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 897 transitions. Word has length 122 [2020-07-21 22:51:17,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:17,974 INFO L479 AbstractCegarLoop]: Abstraction has 691 states and 897 transitions. [2020-07-21 22:51:17,974 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:51:17,974 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 897 transitions. [2020-07-21 22:51:17,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-21 22:51:17,978 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:17,978 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:51:18,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:18,192 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:18,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:18,193 INFO L82 PathProgramCache]: Analyzing trace with hash 2062814711, now seen corresponding path program 1 times [2020-07-21 22:51:18,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:18,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1259695690] [2020-07-21 22:51:18,194 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:18,294 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 22:51:18,295 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:18,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 22:51:18,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:18,348 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:51:18,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:51:18,567 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2020-07-21 22:51:18,612 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:18,613 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[4, 2, 1] term [2020-07-21 22:51:18,613 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:51:18,614 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 22:51:18,615 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:18,615 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:18,749 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:51:18,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1259695690] [2020-07-21 22:51:18,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:51:18,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:51:18,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367928292] [2020-07-21 22:51:18,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:51:18,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:18,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:51:18,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:51:18,752 INFO L87 Difference]: Start difference. First operand 691 states and 897 transitions. Second operand 7 states. [2020-07-21 22:51:20,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:20,084 INFO L93 Difference]: Finished difference Result 1933 states and 2552 transitions. [2020-07-21 22:51:20,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:51:20,086 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 137 [2020-07-21 22:51:20,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:20,096 INFO L225 Difference]: With dead ends: 1933 [2020-07-21 22:51:20,100 INFO L226 Difference]: Without dead ends: 1169 [2020-07-21 22:51:20,105 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 270 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-07-21 22:51:20,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2020-07-21 22:51:20,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1106. [2020-07-21 22:51:20,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1106 states. [2020-07-21 22:51:20,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1302 transitions. [2020-07-21 22:51:20,168 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1302 transitions. Word has length 137 [2020-07-21 22:51:20,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:20,169 INFO L479 AbstractCegarLoop]: Abstraction has 1106 states and 1302 transitions. [2020-07-21 22:51:20,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:51:20,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1302 transitions. [2020-07-21 22:51:20,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-07-21 22:51:20,176 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:20,177 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:51:20,391 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:20,392 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:20,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:20,393 INFO L82 PathProgramCache]: Analyzing trace with hash -1957319429, now seen corresponding path program 1 times [2020-07-21 22:51:20,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:20,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2073367288] [2020-07-21 22:51:20,394 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:20,492 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:51:20,493 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:20,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 29 conjunts are in the unsatisfiable core [2020-07-21 22:51:20,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:20,619 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 51 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 22:51:20,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:51:20,820 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2020-07-21 22:51:20,872 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:51:20,873 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:20,873 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:20,875 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 2, 2, 1] term [2020-07-21 22:51:20,875 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:51:20,876 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-21 22:51:20,876 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:51:20,877 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 22:51:20,877 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:20,878 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 22:51:20,878 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:20,879 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:20,880 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:21,056 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 22:51:21,057 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2073367288] [2020-07-21 22:51:21,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 22:51:21,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2020-07-21 22:51:21,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105437808] [2020-07-21 22:51:21,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 22:51:21,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:21,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 22:51:21,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:51:21,059 INFO L87 Difference]: Start difference. First operand 1106 states and 1302 transitions. Second operand 5 states. [2020-07-21 22:51:21,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:21,914 INFO L93 Difference]: Finished difference Result 3121 states and 3747 transitions. [2020-07-21 22:51:21,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 22:51:21,921 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-07-21 22:51:21,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:21,934 INFO L225 Difference]: With dead ends: 3121 [2020-07-21 22:51:21,934 INFO L226 Difference]: Without dead ends: 1944 [2020-07-21 22:51:21,939 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 22:51:21,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1944 states. [2020-07-21 22:51:22,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1944 to 1944. [2020-07-21 22:51:22,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1944 states. [2020-07-21 22:51:22,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1944 states to 1944 states and 2224 transitions. [2020-07-21 22:51:22,016 INFO L78 Accepts]: Start accepts. Automaton has 1944 states and 2224 transitions. Word has length 167 [2020-07-21 22:51:22,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:22,017 INFO L479 AbstractCegarLoop]: Abstraction has 1944 states and 2224 transitions. [2020-07-21 22:51:22,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 22:51:22,017 INFO L276 IsEmpty]: Start isEmpty. Operand 1944 states and 2224 transitions. [2020-07-21 22:51:22,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-07-21 22:51:22,023 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:22,024 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:51:22,236 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:22,237 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:22,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:22,237 INFO L82 PathProgramCache]: Analyzing trace with hash 597040064, now seen corresponding path program 1 times [2020-07-21 22:51:22,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:22,238 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [879886029] [2020-07-21 22:51:22,240 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:22,427 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:51:22,427 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:22,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 16 conjunts are in the unsatisfiable core [2020-07-21 22:51:22,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:22,462 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 1] term [2020-07-21 22:51:22,462 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:51:22,535 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 76 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-07-21 22:51:22,536 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:51:22,740 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2020-07-21 22:51:22,797 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:22,799 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:22,800 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-21 22:51:22,800 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:51:22,801 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 22:51:22,801 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:22,802 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:22,802 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:22,803 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:22,804 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:51:22,805 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:22,830 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:51:22,888 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:22,889 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:51:23,078 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 78 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 22:51:23,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [879886029] [2020-07-21 22:51:23,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:51:23,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2020-07-21 22:51:23,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902692850] [2020-07-21 22:51:23,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 22:51:23,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:23,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 22:51:23,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-07-21 22:51:23,081 INFO L87 Difference]: Start difference. First operand 1944 states and 2224 transitions. Second operand 8 states. [2020-07-21 22:51:24,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:24,089 INFO L93 Difference]: Finished difference Result 4944 states and 5813 transitions. [2020-07-21 22:51:24,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:51:24,090 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 184 [2020-07-21 22:51:24,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:24,108 INFO L225 Difference]: With dead ends: 4944 [2020-07-21 22:51:24,109 INFO L226 Difference]: Without dead ends: 2927 [2020-07-21 22:51:24,114 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 361 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-07-21 22:51:24,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2927 states. [2020-07-21 22:51:24,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2927 to 2639. [2020-07-21 22:51:24,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2639 states. [2020-07-21 22:51:24,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2639 states to 2639 states and 3047 transitions. [2020-07-21 22:51:24,200 INFO L78 Accepts]: Start accepts. Automaton has 2639 states and 3047 transitions. Word has length 184 [2020-07-21 22:51:24,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:24,200 INFO L479 AbstractCegarLoop]: Abstraction has 2639 states and 3047 transitions. [2020-07-21 22:51:24,201 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 22:51:24,201 INFO L276 IsEmpty]: Start isEmpty. Operand 2639 states and 3047 transitions. [2020-07-21 22:51:24,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-07-21 22:51:24,209 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:24,209 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 22:51:24,424 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:24,425 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:24,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:24,426 INFO L82 PathProgramCache]: Analyzing trace with hash 444383594, now seen corresponding path program 1 times [2020-07-21 22:51:24,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:24,427 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1969334125] [2020-07-21 22:51:24,428 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:24,543 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:51:24,544 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:24,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:51:24,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:24,598 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 154 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-07-21 22:51:24,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:51:24,692 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 141 proven. 15 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-07-21 22:51:24,692 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1969334125] [2020-07-21 22:51:24,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:51:24,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:51:24,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934992604] [2020-07-21 22:51:24,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:51:24,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:24,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:51:24,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:51:24,694 INFO L87 Difference]: Start difference. First operand 2639 states and 3047 transitions. Second operand 7 states. [2020-07-21 22:51:25,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:25,801 INFO L93 Difference]: Finished difference Result 5623 states and 6534 transitions. [2020-07-21 22:51:25,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-21 22:51:25,803 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 218 [2020-07-21 22:51:25,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:25,816 INFO L225 Difference]: With dead ends: 5623 [2020-07-21 22:51:25,816 INFO L226 Difference]: Without dead ends: 3050 [2020-07-21 22:51:25,824 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 433 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-07-21 22:51:25,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3050 states. [2020-07-21 22:51:25,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3050 to 2093. [2020-07-21 22:51:25,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2093 states. [2020-07-21 22:51:25,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2093 states to 2093 states and 2375 transitions. [2020-07-21 22:51:25,890 INFO L78 Accepts]: Start accepts. Automaton has 2093 states and 2375 transitions. Word has length 218 [2020-07-21 22:51:25,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:25,890 INFO L479 AbstractCegarLoop]: Abstraction has 2093 states and 2375 transitions. [2020-07-21 22:51:25,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:51:25,891 INFO L276 IsEmpty]: Start isEmpty. Operand 2093 states and 2375 transitions. [2020-07-21 22:51:25,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-07-21 22:51:25,897 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:25,897 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:51:26,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:26,114 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:26,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:26,114 INFO L82 PathProgramCache]: Analyzing trace with hash -2091809578, now seen corresponding path program 1 times [2020-07-21 22:51:26,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:26,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [586598934] [2020-07-21 22:51:26,115 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:26,246 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:51:26,246 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:26,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 22:51:26,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:26,320 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 151 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-07-21 22:51:26,320 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:51:26,500 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 38 [2020-07-21 22:51:26,540 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:26,541 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:26,542 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:26,542 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[4, 2, 1] term [2020-07-21 22:51:26,543 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:26,543 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 22:51:26,543 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:26,689 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 151 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-07-21 22:51:26,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [586598934] [2020-07-21 22:51:26,689 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:51:26,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:51:26,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289753886] [2020-07-21 22:51:26,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:51:26,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:26,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:51:26,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:51:26,691 INFO L87 Difference]: Start difference. First operand 2093 states and 2375 transitions. Second operand 7 states. [2020-07-21 22:51:28,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:28,006 INFO L93 Difference]: Finished difference Result 5504 states and 6329 transitions. [2020-07-21 22:51:28,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 22:51:28,007 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 240 [2020-07-21 22:51:28,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:28,023 INFO L225 Difference]: With dead ends: 5504 [2020-07-21 22:51:28,024 INFO L226 Difference]: Without dead ends: 3477 [2020-07-21 22:51:28,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 478 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-21 22:51:28,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3477 states. [2020-07-21 22:51:28,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3477 to 3336. [2020-07-21 22:51:28,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3336 states. [2020-07-21 22:51:28,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 3791 transitions. [2020-07-21 22:51:28,109 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 3791 transitions. Word has length 240 [2020-07-21 22:51:28,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:28,110 INFO L479 AbstractCegarLoop]: Abstraction has 3336 states and 3791 transitions. [2020-07-21 22:51:28,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:51:28,110 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 3791 transitions. [2020-07-21 22:51:28,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-07-21 22:51:28,120 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:28,120 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 22:51:28,333 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:28,334 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:28,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:28,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1503547973, now seen corresponding path program 1 times [2020-07-21 22:51:28,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:28,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1404753672] [2020-07-21 22:51:28,336 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:28,494 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:51:28,494 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:28,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:51:28,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:28,540 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-07-21 22:51:28,540 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:51:28,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1404753672] [2020-07-21 22:51:28,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:51:28,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:51:28,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575162525] [2020-07-21 22:51:28,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:51:28,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:28,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:51:28,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:51:28,542 INFO L87 Difference]: Start difference. First operand 3336 states and 3791 transitions. Second operand 3 states. [2020-07-21 22:51:29,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:29,060 INFO L93 Difference]: Finished difference Result 6741 states and 7659 transitions. [2020-07-21 22:51:29,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:51:29,060 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 253 [2020-07-21 22:51:29,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:29,076 INFO L225 Difference]: With dead ends: 6741 [2020-07-21 22:51:29,076 INFO L226 Difference]: Without dead ends: 3471 [2020-07-21 22:51:29,085 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:51:29,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3471 states. [2020-07-21 22:51:29,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3471 to 3336. [2020-07-21 22:51:29,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3336 states. [2020-07-21 22:51:29,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 3788 transitions. [2020-07-21 22:51:29,165 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 3788 transitions. Word has length 253 [2020-07-21 22:51:29,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:29,166 INFO L479 AbstractCegarLoop]: Abstraction has 3336 states and 3788 transitions. [2020-07-21 22:51:29,166 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:51:29,166 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 3788 transitions. [2020-07-21 22:51:29,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2020-07-21 22:51:29,178 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:29,178 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 22:51:29,394 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:29,395 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:29,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:29,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1542218823, now seen corresponding path program 1 times [2020-07-21 22:51:29,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:29,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [79228807] [2020-07-21 22:51:29,396 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:29,583 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:51:29,583 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:29,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:51:29,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:29,663 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 235 proven. 2 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2020-07-21 22:51:29,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:51:29,782 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 235 proven. 2 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2020-07-21 22:51:29,783 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [79228807] [2020-07-21 22:51:29,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:51:29,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 22:51:29,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947935771] [2020-07-21 22:51:29,784 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 22:51:29,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:29,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 22:51:29,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 22:51:29,785 INFO L87 Difference]: Start difference. First operand 3336 states and 3788 transitions. Second operand 6 states. [2020-07-21 22:51:30,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:30,633 INFO L93 Difference]: Finished difference Result 7027 states and 8005 transitions. [2020-07-21 22:51:30,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:51:30,634 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 289 [2020-07-21 22:51:30,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:30,649 INFO L225 Difference]: With dead ends: 7027 [2020-07-21 22:51:30,650 INFO L226 Difference]: Without dead ends: 3757 [2020-07-21 22:51:30,658 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 583 GetRequests, 574 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:51:30,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3757 states. [2020-07-21 22:51:30,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3757 to 3612. [2020-07-21 22:51:30,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3612 states. [2020-07-21 22:51:30,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3612 states to 3612 states and 4042 transitions. [2020-07-21 22:51:30,741 INFO L78 Accepts]: Start accepts. Automaton has 3612 states and 4042 transitions. Word has length 289 [2020-07-21 22:51:30,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:30,742 INFO L479 AbstractCegarLoop]: Abstraction has 3612 states and 4042 transitions. [2020-07-21 22:51:30,742 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 22:51:30,742 INFO L276 IsEmpty]: Start isEmpty. Operand 3612 states and 4042 transitions. [2020-07-21 22:51:30,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2020-07-21 22:51:30,756 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:30,756 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:51:30,971 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:30,972 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:30,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:30,972 INFO L82 PathProgramCache]: Analyzing trace with hash 606680104, now seen corresponding path program 1 times [2020-07-21 22:51:30,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:30,973 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [4481538] [2020-07-21 22:51:30,973 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:31,143 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:51:31,143 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:31,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 22:51:31,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:31,267 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 427 proven. 2 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2020-07-21 22:51:31,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:51:31,382 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 22:51:31,383 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:31,559 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 306 proven. 29 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2020-07-21 22:51:31,559 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [4481538] [2020-07-21 22:51:31,560 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:51:31,560 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:51:31,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203246190] [2020-07-21 22:51:31,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:51:31,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:31,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:51:31,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:51:31,561 INFO L87 Difference]: Start difference. First operand 3612 states and 4042 transitions. Second operand 7 states. [2020-07-21 22:51:32,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:32,809 INFO L93 Difference]: Finished difference Result 6890 states and 7684 transitions. [2020-07-21 22:51:32,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 22:51:32,810 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 335 [2020-07-21 22:51:32,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:32,822 INFO L225 Difference]: With dead ends: 6890 [2020-07-21 22:51:32,823 INFO L226 Difference]: Without dead ends: 3201 [2020-07-21 22:51:32,831 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 679 GetRequests, 668 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-21 22:51:32,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3201 states. [2020-07-21 22:51:32,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3201 to 3197. [2020-07-21 22:51:32,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3197 states. [2020-07-21 22:51:32,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3197 states to 3197 states and 3425 transitions. [2020-07-21 22:51:32,892 INFO L78 Accepts]: Start accepts. Automaton has 3197 states and 3425 transitions. Word has length 335 [2020-07-21 22:51:32,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:32,893 INFO L479 AbstractCegarLoop]: Abstraction has 3197 states and 3425 transitions. [2020-07-21 22:51:32,893 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:51:32,893 INFO L276 IsEmpty]: Start isEmpty. Operand 3197 states and 3425 transitions. [2020-07-21 22:51:32,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2020-07-21 22:51:32,905 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:32,905 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:51:33,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:33,121 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:33,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:33,122 INFO L82 PathProgramCache]: Analyzing trace with hash -984953910, now seen corresponding path program 1 times [2020-07-21 22:51:33,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:33,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1714633699] [2020-07-21 22:51:33,123 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:33,325 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:51:33,325 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:33,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 809 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:51:33,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:33,437 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 490 proven. 2 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-07-21 22:51:33,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:51:33,600 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 443 proven. 13 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2020-07-21 22:51:33,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1714633699] [2020-07-21 22:51:33,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:51:33,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 22:51:33,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857340463] [2020-07-21 22:51:33,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 22:51:33,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:33,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 22:51:33,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 22:51:33,603 INFO L87 Difference]: Start difference. First operand 3197 states and 3425 transitions. Second operand 6 states. [2020-07-21 22:51:34,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:34,475 INFO L93 Difference]: Finished difference Result 6336 states and 6796 transitions. [2020-07-21 22:51:34,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:51:34,478 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 366 [2020-07-21 22:51:34,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:34,486 INFO L225 Difference]: With dead ends: 6336 [2020-07-21 22:51:34,486 INFO L226 Difference]: Without dead ends: 2429 [2020-07-21 22:51:34,494 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 737 GetRequests, 728 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:51:34,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2429 states. [2020-07-21 22:51:34,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2429 to 2288. [2020-07-21 22:51:34,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2288 states. [2020-07-21 22:51:34,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2288 states to 2288 states and 2411 transitions. [2020-07-21 22:51:34,538 INFO L78 Accepts]: Start accepts. Automaton has 2288 states and 2411 transitions. Word has length 366 [2020-07-21 22:51:34,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:34,538 INFO L479 AbstractCegarLoop]: Abstraction has 2288 states and 2411 transitions. [2020-07-21 22:51:34,538 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 22:51:34,538 INFO L276 IsEmpty]: Start isEmpty. Operand 2288 states and 2411 transitions. [2020-07-21 22:51:34,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2020-07-21 22:51:34,549 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:34,550 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:51:34,764 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:34,765 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:34,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:34,766 INFO L82 PathProgramCache]: Analyzing trace with hash -1408173018, now seen corresponding path program 2 times [2020-07-21 22:51:34,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:34,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [93607886] [2020-07-21 22:51:34,767 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:34,953 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:51:34,954 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:34,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:51:34,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:35,055 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 583 proven. 2 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2020-07-21 22:51:35,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:51:35,247 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 429 proven. 62 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2020-07-21 22:51:35,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [93607886] [2020-07-21 22:51:35,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:51:35,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-21 22:51:35,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553729403] [2020-07-21 22:51:35,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 22:51:35,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:35,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 22:51:35,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 22:51:35,249 INFO L87 Difference]: Start difference. First operand 2288 states and 2411 transitions. Second operand 8 states. [2020-07-21 22:51:36,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:36,412 INFO L93 Difference]: Finished difference Result 3946 states and 4150 transitions. [2020-07-21 22:51:36,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 22:51:36,412 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 380 [2020-07-21 22:51:36,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:36,413 INFO L225 Difference]: With dead ends: 3946 [2020-07-21 22:51:36,413 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 22:51:36,420 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 767 GetRequests, 757 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2020-07-21 22:51:36,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 22:51:36,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 22:51:36,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 22:51:36,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 22:51:36,421 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 380 [2020-07-21 22:51:36,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:36,421 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 22:51:36,422 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 22:51:36,422 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 22:51:36,422 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 22:51:36,634 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:36,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 22:51:37,312 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 162 [2020-07-21 22:51:37,476 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 152 [2020-07-21 22:51:40,955 WARN L193 SmtUtils]: Spent 3.35 s on a formula simplification. DAG size of input: 242 DAG size of output: 144 [2020-07-21 22:51:42,240 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 177 DAG size of output: 96 [2020-07-21 22:51:43,383 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 167 DAG size of output: 86 [2020-07-21 22:51:43,388 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:51:43,388 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a8~0 |old(~a8~0)|) (<= ~a16~0 |old(~a16~0)|) (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (<= |old(~a16~0)| ~a16~0) (= ~a20~0 |old(~a20~0)|) (= ~a21~0 |old(~a21~0)|)) [2020-07-21 22:51:43,389 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:51:43,389 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-21 22:51:43,389 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-21 22:51:43,389 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,389 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,390 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,390 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,390 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,390 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,390 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-21 22:51:43,390 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-21 22:51:43,391 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-21 22:51:43,391 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-21 22:51:43,391 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-21 22:51:43,391 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-21 22:51:43,391 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 22:51:43,391 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-21 22:51:43,391 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-21 22:51:43,391 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-21 22:51:43,392 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,392 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,392 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,392 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,392 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,392 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,392 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-21 22:51:43,392 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-21 22:51:43,392 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-21 22:51:43,393 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-21 22:51:43,393 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-21 22:51:43,393 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-21 22:51:43,393 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-21 22:51:43,393 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-21 22:51:43,393 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-21 22:51:43,393 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-21 22:51:43,393 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-21 22:51:43,393 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 491) no Hoare annotation was computed. [2020-07-21 22:51:43,393 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-21 22:51:43,393 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-21 22:51:43,394 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-21 22:51:43,394 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-21 22:51:43,394 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,394 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,394 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,394 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,394 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,394 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-21 22:51:43,394 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-21 22:51:43,394 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-21 22:51:43,394 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-21 22:51:43,394 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-21 22:51:43,395 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-21 22:51:43,395 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-21 22:51:43,395 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-21 22:51:43,395 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-21 22:51:43,395 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,395 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,395 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,395 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,395 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,396 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-21 22:51:43,396 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-21 22:51:43,396 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-21 22:51:43,396 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-21 22:51:43,396 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-21 22:51:43,396 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-21 22:51:43,396 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-21 22:51:43,396 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-21 22:51:43,397 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-21 22:51:43,397 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-21 22:51:43,397 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-21 22:51:43,397 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-21 22:51:43,397 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-21 22:51:43,397 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,397 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,397 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,398 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,398 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,398 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-21 22:51:43,398 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-21 22:51:43,398 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-21 22:51:43,398 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-21 22:51:43,398 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-21 22:51:43,398 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-21 22:51:43,399 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-21 22:51:43,399 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-21 22:51:43,399 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-21 22:51:43,399 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,399 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,399 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,399 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,399 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,399 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,400 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-21 22:51:43,400 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,400 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-21 22:51:43,400 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-21 22:51:43,400 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-21 22:51:43,400 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-21 22:51:43,400 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 22:51:43,401 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-21 22:51:43,401 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-21 22:51:43,401 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-21 22:51:43,401 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-21 22:51:43,401 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-21 22:51:43,401 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-21 22:51:43,401 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-21 22:51:43,401 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-21 22:51:43,401 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,402 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,402 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,402 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,402 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,402 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-21 22:51:43,402 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-21 22:51:43,402 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-21 22:51:43,402 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-21 22:51:43,403 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 22:51:43,403 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-21 22:51:43,403 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-21 22:51:43,403 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-21 22:51:43,403 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,403 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,403 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,403 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,404 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,404 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-21 22:51:43,404 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-21 22:51:43,404 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-21 22:51:43,404 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-21 22:51:43,404 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-21 22:51:43,404 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-21 22:51:43,404 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-21 22:51:43,405 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-21 22:51:43,405 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-21 22:51:43,405 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-21 22:51:43,405 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse27 (= 1 |old(~a21~0)|)) (.cse41 (= 1 |old(~a20~0)|))) (let ((.cse31 (= 8 ~a12~0)) (.cse0 (not .cse41)) (.cse16 (not .cse27)) (.cse40 (= 1 ~a20~0)) (.cse8 (<= ~a16~0 5)) (.cse21 (= 1 ~a21~0)) (.cse9 (< 4 ~a16~0)) (.cse5 (<= ~a8~0 |old(~a8~0)|)) (.cse19 (<= ~a16~0 |old(~a16~0)|)) (.cse6 (= ~a7~0 |old(~a7~0)|)) (.cse7 (= ~a17~0 |old(~a17~0)|)) (.cse20 (<= |old(~a16~0)| ~a16~0)) (.cse10 (= ~a20~0 |old(~a20~0)|)) (.cse11 (= ~a21~0 |old(~a21~0)|))) (let ((.cse17 (not (<= 6 |old(~a16~0)|))) (.cse25 (and .cse5 .cse19 .cse6 .cse7 .cse20 .cse10 .cse11)) (.cse34 (and .cse6 .cse7 .cse8 .cse21 .cse9 .cse10)) (.cse2 (not (<= |old(~a8~0)| 13))) (.cse28 (<= ~a7~0 0)) (.cse26 (= 1 ~a17~0)) (.cse29 (or (not .cse40) .cse21)) (.cse30 (or .cse40 (not .cse21))) (.cse33 (and .cse41 .cse16)) (.cse35 (not (= 15 |old(~a8~0)|))) (.cse3 (not (< 4 |old(~a16~0)|))) (.cse4 (not (= 1 |old(~a17~0)|))) (.cse37 (and (not (= 6 |calculate_output_#in~input|)) (not (= 1 |calculate_output_#in~input|)) (not (= 2 |calculate_output_#in~input|)) (not (= 4 |calculate_output_#in~input|)) (not (= 5 |calculate_output_#in~input|)) (not (= 3 |calculate_output_#in~input|)))) (.cse36 (= 15 ~a8~0)) (.cse38 (not (= 1 |old(~a7~0)|))) (.cse39 (= 1 ~a7~0)) (.cse1 (not (<= |old(~a16~0)| 5))) (.cse12 (not (<= 15 |old(~a8~0)|))) (.cse14 (<= 15 ~a8~0)) (.cse32 (and .cse0 .cse27)) (.cse13 (not (<= |old(~a7~0)| 0))) (.cse22 (and .cse19 .cse6 .cse7 .cse20 .cse21 .cse10)) (.cse15 (not (<= |old(~a20~0)| 0))) (.cse23 (not (<= |old(~a16~0)| 4))) (.cse24 (not (<= |old(~a17~0)| 0))) (.cse18 (not .cse31))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 (and .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11)) (or .cse12 .cse13 .cse14 .cse4 .cse15 .cse16 .cse17 .cse18) (or (and .cse19 .cse5 .cse6 .cse7 .cse20 .cse21 .cse10) .cse13 .cse4 .cse15 .cse16 .cse17 .cse18) (or .cse0 .cse13 .cse22 .cse4 .cse23 .cse16 .cse18) (or .cse12 .cse13 .cse14 .cse15 .cse17 .cse24 .cse18) (or .cse13 .cse15 .cse25 .cse17 .cse24 .cse18) (or .cse13 .cse15 .cse4 .cse23 .cse16 (and .cse19 .cse6 .cse20 .cse26 .cse10 .cse11) .cse18) (or .cse2 .cse23 .cse27 (and .cse5 .cse19 .cse6 .cse20 .cse7 .cse10 .cse11) .cse24) (or .cse13 .cse3 (and .cse19 .cse6 .cse7 .cse20 .cse28 .cse9 .cse29 .cse10 .cse11 .cse30 .cse31) .cse32 .cse33 .cse24 .cse18) (or (and (or .cse15 .cse23 .cse32) (or .cse32 .cse17 .cse24)) .cse2 .cse25) (or .cse34 .cse13 .cse1 .cse3 .cse4 .cse15 .cse16 .cse18) (or .cse0 .cse35 (and .cse6 .cse7 .cse21 .cse10 .cse36 (= 5 ~a16~0)) .cse13 .cse1 .cse3 .cse4 .cse37 .cse33 .cse18) (or (and .cse19 .cse5 .cse6 .cse7 .cse20 .cse21 .cse30) .cse13 .cse23 .cse32 .cse16 .cse24 .cse18) (or .cse38 .cse32 .cse16 (and .cse39 .cse40 .cse11)) (or .cse0 (and .cse19 .cse5 .cse6 .cse7 .cse20 .cse10 .cse11) .cse2 .cse4 .cse23) (or .cse13 .cse34 .cse1 .cse3 .cse15 .cse16 .cse24 .cse18) (or .cse13 .cse2 (and .cse5 .cse19 .cse6 .cse20 .cse28 .cse26 .cse9 .cse29 .cse11 .cse30 .cse31) .cse3 .cse4 .cse32 .cse16 .cse33 .cse18) (or .cse35 .cse13 .cse3 .cse4 .cse15 .cse37 .cse16 .cse36 .cse18) (or .cse38 (and .cse19 .cse39 .cse11) .cse1 .cse16) (or .cse12 .cse13 .cse14 .cse23 .cse32 .cse16 .cse24 .cse18) (or .cse13 .cse22 .cse15 .cse23 .cse16 .cse24 .cse18))))) [2020-07-21 22:51:43,406 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-21 22:51:43,406 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,406 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,406 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,406 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,406 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-21 22:51:43,406 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,406 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,406 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-21 22:51:43,407 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-21 22:51:43,407 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-21 22:51:43,407 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-21 22:51:43,407 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-21 22:51:43,407 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-21 22:51:43,407 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-21 22:51:43,407 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-21 22:51:43,407 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-21 22:51:43,407 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-21 22:51:43,408 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-21 22:51:43,408 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-21 22:51:43,408 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,408 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,408 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,408 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,408 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,408 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-21 22:51:43,408 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,409 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-21 22:51:43,409 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-21 22:51:43,409 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-21 22:51:43,409 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-21 22:51:43,409 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-21 22:51:43,409 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 22:51:43,409 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-21 22:51:43,409 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-21 22:51:43,409 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-21 22:51:43,409 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-21 22:51:43,410 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-21 22:51:43,410 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-21 22:51:43,410 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-21 22:51:43,410 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-21 22:51:43,410 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,410 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,410 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,410 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,410 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,411 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:43,411 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-21 22:51:43,411 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-21 22:51:43,411 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-21 22:51:43,411 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-21 22:51:43,411 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-21 22:51:43,411 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-21 22:51:43,411 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-21 22:51:43,411 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-21 22:51:43,412 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-21 22:51:43,412 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-21 22:51:43,412 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:51:43,412 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (= 1 ~a17~0) (= 1 ~a21~0) (= 1 ~a20~0) (= 15 ~a8~0) (= 5 ~a16~0) (= 8 ~a12~0)) [2020-07-21 22:51:43,412 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 22:51:43,412 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:51:43,412 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= 1 ~a21~0) (= ~a20~0 |old(~a20~0)|) (= 15 ~a8~0) (= 5 ~a16~0)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (< 4 |old(~a16~0)|)) (not (= 1 |old(~a17~0)|)) (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0))) [2020-07-21 22:51:43,412 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-21 22:51:43,413 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse8 (= 1 ~a21~0))) (let ((.cse13 (not .cse8)) (.cse9 (= 1 ~a20~0))) (let ((.cse1 (<= ~a17~0 0)) (.cse4 (or (not .cse9) .cse8)) (.cse12 (<= ~a8~0 13)) (.cse3 (< 4 ~a16~0)) (.cse14 (<= ~a16~0 5)) (.cse15 (= 1 ~a7~0)) (.cse5 (or .cse9 .cse13)) (.cse0 (not (= 1 |old(~a7~0)|))) (.cse2 (<= ~a7~0 0)) (.cse7 (= 1 ~a17~0)) (.cse11 (<= ~a20~0 0)) (.cse10 (<= ~a16~0 4)) (.cse6 (= 8 ~a12~0))) (or (not (= 15 |old(~a8~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (not (<= |old(~a7~0)| 0)) (and .cse0 .cse2 .cse7 .cse8 .cse9 .cse10 .cse6) (not (< 4 |old(~a16~0)|)) (not (= 1 |old(~a17~0)|)) (and .cse1 .cse2 .cse8 .cse3 .cse11 .cse6) (and .cse12 (or (and .cse11 .cse10 .cse5) (and (<= 6 ~a16~0) .cse1 .cse5))) (and .cse12 .cse1 .cse13 .cse10) (and (<= ~a8~0 |old(~a8~0)|) .cse1 .cse2 .cse8 .cse5) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) .cse8 (or (= 1 main_~input~0) (= 2 main_~input~0) (= 6 main_~input~0) (= 4 main_~input~0) (= 5 main_~input~0) (= 3 main_~input~0)) (= 15 ~a8~0) .cse5 (= 5 ~a16~0)) (and .cse0 .cse1 .cse2 .cse8 .cse11 .cse10 .cse6) (not (= 1 |old(~a20~0)|)) (and .cse12 .cse0 .cse2 .cse7 .cse9 .cse3 .cse4 .cse5 .cse6) (not (<= |old(~a16~0)| 5)) (and .cse12 .cse7 .cse14 .cse9) (and .cse2 .cse7 .cse8 .cse3 .cse11 .cse6) (and .cse15 .cse14 .cse8) (not (= 1 |old(~a21~0)|)) (and .cse15 .cse8 .cse5) (and .cse0 .cse2 .cse7 .cse8 .cse11 .cse10 .cse6) (not .cse6))))) [2020-07-21 22:51:43,413 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-21 22:51:43,413 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-21 22:51:43,413 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse8 (= 1 ~a21~0))) (let ((.cse13 (not .cse8)) (.cse9 (= 1 ~a20~0))) (let ((.cse1 (<= ~a17~0 0)) (.cse4 (or (not .cse9) .cse8)) (.cse12 (<= ~a8~0 13)) (.cse3 (< 4 ~a16~0)) (.cse14 (<= ~a16~0 5)) (.cse15 (= 1 ~a7~0)) (.cse5 (or .cse9 .cse13)) (.cse0 (not (= 1 |old(~a7~0)|))) (.cse2 (<= ~a7~0 0)) (.cse7 (= 1 ~a17~0)) (.cse11 (<= ~a20~0 0)) (.cse10 (<= ~a16~0 4)) (.cse6 (= 8 ~a12~0))) (or (not (= 15 |old(~a8~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (not (<= |old(~a7~0)| 0)) (and .cse0 .cse2 .cse7 .cse8 .cse9 .cse10 .cse6) (not (< 4 |old(~a16~0)|)) (not (= 1 |old(~a17~0)|)) (and .cse1 .cse2 .cse8 .cse3 .cse11 .cse6) (and .cse12 (or (and .cse11 .cse10 .cse5) (and (<= 6 ~a16~0) .cse1 .cse5))) (and .cse12 .cse1 .cse13 .cse10) (and (<= ~a8~0 |old(~a8~0)|) .cse1 .cse2 .cse8 .cse5) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) .cse8 (= 15 ~a8~0) .cse5 (= 5 ~a16~0)) (and .cse0 .cse1 .cse2 .cse8 .cse11 .cse10 .cse6) (not (= 1 |old(~a20~0)|)) (and .cse12 .cse0 .cse2 .cse7 .cse9 .cse3 .cse4 .cse5 .cse6) (not (<= |old(~a16~0)| 5)) (and .cse12 .cse7 .cse14 .cse9) (and .cse2 .cse7 .cse8 .cse3 .cse11 .cse6) (and .cse15 .cse14 .cse8) (not (= 1 |old(~a21~0)|)) (and .cse15 .cse8 .cse5) (and .cse0 .cse2 .cse7 .cse8 .cse11 .cse10 .cse6) (not .cse6))))) [2020-07-21 22:51:43,414 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-21 22:51:43,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:51:43 BoogieIcfgContainer [2020-07-21 22:51:43,441 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 22:51:43,443 INFO L168 Benchmark]: Toolchain (without parser) took 40589.94 ms. Allocated memory was 140.0 MB in the beginning and 660.1 MB in the end (delta: 520.1 MB). Free memory was 102.9 MB in the beginning and 368.9 MB in the end (delta: -266.0 MB). Peak memory consumption was 537.4 MB. Max. memory is 7.1 GB. [2020-07-21 22:51:43,443 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 123.1 MB in the beginning and 122.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-21 22:51:43,444 INFO L168 Benchmark]: CACSL2BoogieTranslator took 729.09 ms. Allocated memory was 140.0 MB in the beginning and 206.6 MB in the end (delta: 66.6 MB). Free memory was 102.5 MB in the beginning and 172.5 MB in the end (delta: -70.0 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. [2020-07-21 22:51:43,445 INFO L168 Benchmark]: Boogie Preprocessor took 135.91 ms. Allocated memory is still 206.6 MB. Free memory was 172.5 MB in the beginning and 167.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. [2020-07-21 22:51:43,445 INFO L168 Benchmark]: RCFGBuilder took 1192.56 ms. Allocated memory was 206.6 MB in the beginning and 238.0 MB in the end (delta: 31.5 MB). Free memory was 167.0 MB in the beginning and 177.4 MB in the end (delta: -10.4 MB). Peak memory consumption was 79.3 MB. Max. memory is 7.1 GB. [2020-07-21 22:51:43,446 INFO L168 Benchmark]: TraceAbstraction took 38526.49 ms. Allocated memory was 238.0 MB in the beginning and 660.1 MB in the end (delta: 422.1 MB). Free memory was 177.4 MB in the beginning and 368.9 MB in the end (delta: -191.5 MB). Peak memory consumption was 513.9 MB. Max. memory is 7.1 GB. [2020-07-21 22:51:43,449 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 123.1 MB in the beginning and 122.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 729.09 ms. Allocated memory was 140.0 MB in the beginning and 206.6 MB in the end (delta: 66.6 MB). Free memory was 102.5 MB in the beginning and 172.5 MB in the end (delta: -70.0 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 135.91 ms. Allocated memory is still 206.6 MB. Free memory was 172.5 MB in the beginning and 167.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1192.56 ms. Allocated memory was 206.6 MB in the beginning and 238.0 MB in the end (delta: 31.5 MB). Free memory was 167.0 MB in the beginning and 177.4 MB in the end (delta: -10.4 MB). Peak memory consumption was 79.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 38526.49 ms. Allocated memory was 238.0 MB in the beginning and 660.1 MB in the end (delta: 422.1 MB). Free memory was 177.4 MB in the beginning and 368.9 MB in the end (delta: -191.5 MB). Peak memory consumption was 513.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 491]: 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: 583]: Loop Invariant Derived loop invariant: ((((((((((((((((((((!(15 == \old(a8)) || ((((((!(1 == \old(a7)) && a17 <= 0) && a7 <= 0) && 4 < a16) && (!(1 == a20) || 1 == a21)) && (1 == a20 || !(1 == a21))) && 8 == a12)) || !(\old(a7) <= 0)) || ((((((!(1 == \old(a7)) && a7 <= 0) && 1 == a17) && 1 == a21) && 1 == a20) && a16 <= 4) && 8 == a12)) || !(4 < \old(a16))) || !(1 == \old(a17))) || (((((a17 <= 0 && a7 <= 0) && 1 == a21) && 4 < a16) && a20 <= 0) && 8 == a12)) || (a8 <= 13 && (((a20 <= 0 && a16 <= 4) && (1 == a20 || !(1 == a21))) || ((6 <= a16 && a17 <= 0) && (1 == a20 || !(1 == a21)))))) || (((a8 <= 13 && a17 <= 0) && !(1 == a21)) && a16 <= 4)) || ((((a8 <= \old(a8) && a17 <= 0) && a7 <= 0) && 1 == a21) && (1 == a20 || !(1 == a21)))) || (((((a7 == \old(a7) && a17 == \old(a17)) && 1 == a21) && 15 == a8) && (1 == a20 || !(1 == a21))) && 5 == a16)) || ((((((!(1 == \old(a7)) && a17 <= 0) && a7 <= 0) && 1 == a21) && a20 <= 0) && a16 <= 4) && 8 == a12)) || !(1 == \old(a20))) || ((((((((a8 <= 13 && !(1 == \old(a7))) && a7 <= 0) && 1 == a17) && 1 == a20) && 4 < a16) && (!(1 == a20) || 1 == a21)) && (1 == a20 || !(1 == a21))) && 8 == a12)) || !(\old(a16) <= 5)) || (((a8 <= 13 && 1 == a17) && a16 <= 5) && 1 == a20)) || (((((a7 <= 0 && 1 == a17) && 1 == a21) && 4 < a16) && a20 <= 0) && 8 == a12)) || ((1 == a7 && a16 <= 5) && 1 == a21)) || !(1 == \old(a21))) || ((1 == a7 && 1 == a21) && (1 == a20 || !(1 == a21)))) || ((((((!(1 == \old(a7)) && a7 <= 0) && 1 == a17) && 1 == a21) && a20 <= 0) && a16 <= 4) && 8 == a12)) || !(8 == a12) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 31.6s, OverallIterations: 13, TraceHistogramMax: 8, AutomataDifference: 18.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 674 SDtfs, 5569 SDslu, 695 SDs, 0 SdLazy, 13074 SolverSat, 1265 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5430 GetRequests, 5279 SyntacticMatches, 13 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 597 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3612occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 13 MinimizatonAttempts, 1908 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 212 PreInvPairs, 260 NumberOfFragments, 1807 HoareAnnotationTreeSize, 212 FomulaSimplifications, 7474 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 16206 FormulaSimplificationTreeSizeReductionInter, 5.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 7.3s InterpolantComputationTime, 2921 NumberOfCodeBlocks, 1998 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 5333 ConstructedInterpolants, 0 QuantifiedInterpolants, 4627061 SizeOfPredicates, 66 NumberOfNonLiveVariables, 6436 ConjunctsInSsa, 224 ConjunctsInUnsatCore, 23 InterpolantComputations, 4 PerfectInterpolantSequences, 6302/6466 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...