/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 22:54:26,599 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 22:54:26,624 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 22:54:26,625 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 22:54:26,626 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 22:54:26,627 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 22:54:26,628 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 22:54:26,629 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 22:54:26,631 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 22:54:26,633 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 22:54:26,635 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 22:54:26,636 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 22:54:26,637 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 22:54:26,638 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 22:54:26,640 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 22:54:26,648 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 22:54:26,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 22:54:26,650 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 22:54:26,651 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 22:54:26,666 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 22:54:26,666 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 22:54:26,667 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 22:54:26,667 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 22:54:26,668 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 22:54:26,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 22:54:26,668 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 22:54:26,668 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 22:54:26,671 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 22:54:26,671 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 22:54:26,671 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 22:54:26,672 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 22:54:26,672 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 22:54:26,672 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 22:54:26,672 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 22:54:26,673 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 22:54:26,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 22:54:26,673 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 22:54:26,673 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 22:54:26,673 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 22:54:26,673 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 22:54:26,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:54:26,674 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 22:54:26,674 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 22:54:26,675 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 22:54:26,675 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 22:54:26,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:54:26,675 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 22:54:26,676 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 22:54:26,676 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 22:54:26,970 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 22:54:26,984 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 22:54:26,987 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 22:54:26,989 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 22:54:26,989 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 22:54:26,990 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label05.c [2020-07-21 22:54:27,053 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be57fe895/48a778758f7e4fffb9dc147cc7fd6c8d/FLAG77c10e062 [2020-07-21 22:54:27,577 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 22:54:27,578 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label05.c [2020-07-21 22:54:27,590 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be57fe895/48a778758f7e4fffb9dc147cc7fd6c8d/FLAG77c10e062 [2020-07-21 22:54:27,926 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be57fe895/48a778758f7e4fffb9dc147cc7fd6c8d [2020-07-21 22:54:27,937 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 22:54:27,940 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 22:54:27,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 22:54:27,942 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 22:54:27,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 22:54:27,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:54:27" (1/1) ... [2020-07-21 22:54:27,950 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4913cb6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:54:27, skipping insertion in model container [2020-07-21 22:54:27,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:54:27" (1/1) ... [2020-07-21 22:54:27,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 22:54:28,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 22:54:28,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:54:28,581 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 22:54:28,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:54:28,709 INFO L208 MainTranslator]: Completed translation [2020-07-21 22:54:28,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:54:28 WrapperNode [2020-07-21 22:54:28,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 22:54:28,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 22:54:28,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 22:54:28,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 22:54:28,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:54:28" (1/1) ... [2020-07-21 22:54:28,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:54:28" (1/1) ... [2020-07-21 22:54:28,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:54:28" (1/1) ... [2020-07-21 22:54:28,748 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:54:28" (1/1) ... [2020-07-21 22:54:28,791 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:54:28" (1/1) ... [2020-07-21 22:54:28,807 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:54:28" (1/1) ... [2020-07-21 22:54:28,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:54:28" (1/1) ... [2020-07-21 22:54:28,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 22:54:28,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 22:54:28,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 22:54:28,819 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 22:54:28,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:54:28" (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 22:54:28,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 22:54:28,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 22:54:28,873 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 22:54:28,874 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 22:54:28,874 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 22:54:28,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 22:54:28,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 22:54:28,874 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 22:54:28,874 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 22:54:28,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 22:54:28,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 22:54:30,094 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 22:54:30,095 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 22:54:30,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:54:30 BoogieIcfgContainer [2020-07-21 22:54:30,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 22:54:30,109 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 22:54:30,109 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 22:54:30,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 22:54:30,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:54:27" (1/3) ... [2020-07-21 22:54:30,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@734f161c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:54:30, skipping insertion in model container [2020-07-21 22:54:30,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:54:28" (2/3) ... [2020-07-21 22:54:30,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@734f161c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:54:30, skipping insertion in model container [2020-07-21 22:54:30,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:54:30" (3/3) ... [2020-07-21 22:54:30,121 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label05.c [2020-07-21 22:54:30,132 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 22:54:30,143 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 22:54:30,157 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 22:54:30,184 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 22:54:30,184 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 22:54:30,184 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 22:54:30,185 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 22:54:30,185 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 22:54:30,185 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 22:54:30,185 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 22:54:30,185 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 22:54:30,205 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 22:54:30,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-21 22:54:30,220 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:54:30,221 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:54:30,222 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:54:30,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:54:30,228 INFO L82 PathProgramCache]: Analyzing trace with hash -2092008314, now seen corresponding path program 1 times [2020-07-21 22:54:30,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:54:30,238 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1691647947] [2020-07-21 22:54:30,239 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 22:54:30,426 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:54:30,427 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:54:30,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 52 conjunts are in the unsatisfiable core [2020-07-21 22:54:30,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:54:31,020 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:54:31,025 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 22:54:31,026 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 22:54:31,125 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 22:54:31,126 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:54:31,127 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1691647947] [2020-07-21 22:54:31,128 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:54:31,128 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-21 22:54:31,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813188801] [2020-07-21 22:54:31,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 22:54:31,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:54:31,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 22:54:31,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-07-21 22:54:31,153 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 10 states. [2020-07-21 22:54:32,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:54:32,404 INFO L93 Difference]: Finished difference Result 527 states and 878 transitions. [2020-07-21 22:54:32,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 22:54:32,406 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 132 [2020-07-21 22:54:32,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:54:32,427 INFO L225 Difference]: With dead ends: 527 [2020-07-21 22:54:32,427 INFO L226 Difference]: Without dead ends: 229 [2020-07-21 22:54:32,439 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2020-07-21 22:54:32,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-07-21 22:54:32,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-07-21 22:54:32,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-07-21 22:54:32,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 319 transitions. [2020-07-21 22:54:32,544 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 319 transitions. Word has length 132 [2020-07-21 22:54:32,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:54:32,545 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 319 transitions. [2020-07-21 22:54:32,545 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 22:54:32,546 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 319 transitions. [2020-07-21 22:54:32,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-07-21 22:54:32,550 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:54:32,551 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:54:32,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:54:32,765 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:54:32,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:54:32,766 INFO L82 PathProgramCache]: Analyzing trace with hash 572086519, now seen corresponding path program 1 times [2020-07-21 22:54:32,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:54:32,768 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [997598925] [2020-07-21 22:54:32,768 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 22:54:32,893 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:54:32,894 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:54:32,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-21 22:54:32,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:54:33,441 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:54:33,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:54:33,888 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 6 conjuncts [2020-07-21 22:54:33,890 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 22:54:33,892 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 22:54:33,893 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 22:54:33,894 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:54:33,916 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 5, 1] term [2020-07-21 22:54:33,916 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 22:54:33,956 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:54:34,033 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:54:34,177 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:54:34,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [997598925] [2020-07-21 22:54:34,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:54:34,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 22:54:34,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616527998] [2020-07-21 22:54:34,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 22:54:34,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:54:34,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 22:54:34,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 22:54:34,182 INFO L87 Difference]: Start difference. First operand 229 states and 319 transitions. Second operand 21 states. [2020-07-21 22:54:35,221 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 22:54:36,385 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-07-21 22:54:37,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:54:37,978 INFO L93 Difference]: Finished difference Result 738 states and 1083 transitions. [2020-07-21 22:54:37,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-21 22:54:37,980 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 141 [2020-07-21 22:54:37,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:54:37,987 INFO L225 Difference]: With dead ends: 738 [2020-07-21 22:54:37,988 INFO L226 Difference]: Without dead ends: 423 [2020-07-21 22:54:37,994 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 259 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=516, Invalid=1290, Unknown=0, NotChecked=0, Total=1806 [2020-07-21 22:54:37,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-07-21 22:54:38,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 393. [2020-07-21 22:54:38,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-07-21 22:54:38,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 533 transitions. [2020-07-21 22:54:38,052 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 533 transitions. Word has length 141 [2020-07-21 22:54:38,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:54:38,052 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 533 transitions. [2020-07-21 22:54:38,052 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 22:54:38,053 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 533 transitions. [2020-07-21 22:54:38,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-21 22:54:38,056 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:54:38,057 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:54:38,262 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:54:38,263 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:54:38,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:54:38,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1736147466, now seen corresponding path program 1 times [2020-07-21 22:54:38,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:54:38,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1729915092] [2020-07-21 22:54:38,265 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 22:54:38,369 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 22:54:38,369 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:54:38,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 22:54:38,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:54:38,391 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 22:54:38,392 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:54:38,417 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:54:38,447 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:54:38,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:54:38,538 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:54:38,541 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:54:38,565 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:54:38,619 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:54:38,624 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:54:38,648 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:54:38,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1729915092] [2020-07-21 22:54:38,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:54:38,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:54:38,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47264515] [2020-07-21 22:54:38,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:54:38,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:54:38,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:54:38,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:54:38,653 INFO L87 Difference]: Start difference. First operand 393 states and 533 transitions. Second operand 7 states. [2020-07-21 22:54:40,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:54:40,311 INFO L93 Difference]: Finished difference Result 1434 states and 2028 transitions. [2020-07-21 22:54:40,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-21 22:54:40,317 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 153 [2020-07-21 22:54:40,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:54:40,332 INFO L225 Difference]: With dead ends: 1434 [2020-07-21 22:54:40,332 INFO L226 Difference]: Without dead ends: 1047 [2020-07-21 22:54:40,334 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 305 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2020-07-21 22:54:40,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2020-07-21 22:54:40,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1015. [2020-07-21 22:54:40,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2020-07-21 22:54:40,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1272 transitions. [2020-07-21 22:54:40,416 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1272 transitions. Word has length 153 [2020-07-21 22:54:40,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:54:40,419 INFO L479 AbstractCegarLoop]: Abstraction has 1015 states and 1272 transitions. [2020-07-21 22:54:40,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:54:40,419 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1272 transitions. [2020-07-21 22:54:40,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-07-21 22:54:40,426 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:54:40,426 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:54:40,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:54:40,628 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:54:40,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:54:40,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1282216505, now seen corresponding path program 1 times [2020-07-21 22:54:40,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:54:40,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [817146795] [2020-07-21 22:54:40,630 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 22:54:40,744 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:54:40,744 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:54:40,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:54:40,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:54:40,815 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 22:54:40,815 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:54:40,815 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [817146795] [2020-07-21 22:54:40,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:54:40,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:54:40,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64360933] [2020-07-21 22:54:40,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:54:40,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:54:40,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:54:40,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:54:40,818 INFO L87 Difference]: Start difference. First operand 1015 states and 1272 transitions. Second operand 3 states. [2020-07-21 22:54:41,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:54:41,450 INFO L93 Difference]: Finished difference Result 2644 states and 3454 transitions. [2020-07-21 22:54:41,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:54:41,451 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 167 [2020-07-21 22:54:41,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:54:41,468 INFO L225 Difference]: With dead ends: 2644 [2020-07-21 22:54:41,468 INFO L226 Difference]: Without dead ends: 1635 [2020-07-21 22:54:41,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:54:41,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1635 states. [2020-07-21 22:54:41,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1635 to 1626. [2020-07-21 22:54:41,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1626 states. [2020-07-21 22:54:41,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1626 states to 1626 states and 2092 transitions. [2020-07-21 22:54:41,543 INFO L78 Accepts]: Start accepts. Automaton has 1626 states and 2092 transitions. Word has length 167 [2020-07-21 22:54:41,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:54:41,546 INFO L479 AbstractCegarLoop]: Abstraction has 1626 states and 2092 transitions. [2020-07-21 22:54:41,546 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:54:41,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1626 states and 2092 transitions. [2020-07-21 22:54:41,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-07-21 22:54:41,554 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:54:41,555 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:54:41,768 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:54:41,769 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:54:41,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:54:41,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1079230113, now seen corresponding path program 1 times [2020-07-21 22:54:41,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:54:41,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1835092222] [2020-07-21 22:54:41,772 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 22:54:41,865 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:54:41,866 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:54:41,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 41 conjunts are in the unsatisfiable core [2020-07-21 22:54:41,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:54:42,002 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 40 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:54:42,002 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:54:42,257 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 42 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:54:42,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1835092222] [2020-07-21 22:54:42,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:54:42,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 10 [2020-07-21 22:54:42,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711214840] [2020-07-21 22:54:42,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 22:54:42,260 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:54:42,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 22:54:42,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-07-21 22:54:42,261 INFO L87 Difference]: Start difference. First operand 1626 states and 2092 transitions. Second operand 10 states. [2020-07-21 22:54:43,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:54:43,885 INFO L93 Difference]: Finished difference Result 4464 states and 6134 transitions. [2020-07-21 22:54:43,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-21 22:54:43,887 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 174 [2020-07-21 22:54:43,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:54:43,902 INFO L225 Difference]: With dead ends: 4464 [2020-07-21 22:54:43,903 INFO L226 Difference]: Without dead ends: 2751 [2020-07-21 22:54:43,908 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=149, Unknown=0, NotChecked=0, Total=240 [2020-07-21 22:54:43,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2751 states. [2020-07-21 22:54:43,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2751 to 2706. [2020-07-21 22:54:43,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2706 states. [2020-07-21 22:54:43,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2706 states to 2706 states and 3396 transitions. [2020-07-21 22:54:43,989 INFO L78 Accepts]: Start accepts. Automaton has 2706 states and 3396 transitions. Word has length 174 [2020-07-21 22:54:43,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:54:43,990 INFO L479 AbstractCegarLoop]: Abstraction has 2706 states and 3396 transitions. [2020-07-21 22:54:43,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 22:54:43,990 INFO L276 IsEmpty]: Start isEmpty. Operand 2706 states and 3396 transitions. [2020-07-21 22:54:43,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-21 22:54:43,998 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:54:43,999 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:54:44,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:54:44,214 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:54:44,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:54:44,215 INFO L82 PathProgramCache]: Analyzing trace with hash 308097886, now seen corresponding path program 1 times [2020-07-21 22:54:44,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:54:44,215 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1071980214] [2020-07-21 22:54:44,216 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 22:54:44,300 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:54:44,301 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:54:44,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:54:44,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:54:44,348 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 22:54:44,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:54:44,413 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 22:54:44,413 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1071980214] [2020-07-21 22:54:44,414 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:54:44,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 22:54:44,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686566523] [2020-07-21 22:54:44,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 22:54:44,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:54:44,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 22:54:44,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 22:54:44,416 INFO L87 Difference]: Start difference. First operand 2706 states and 3396 transitions. Second operand 6 states. [2020-07-21 22:54:45,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:54:45,447 INFO L93 Difference]: Finished difference Result 6661 states and 8727 transitions. [2020-07-21 22:54:45,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:54:45,447 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 177 [2020-07-21 22:54:45,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:54:45,470 INFO L225 Difference]: With dead ends: 6661 [2020-07-21 22:54:45,470 INFO L226 Difference]: Without dead ends: 3961 [2020-07-21 22:54:45,481 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 350 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:54:45,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3961 states. [2020-07-21 22:54:45,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3961 to 3894. [2020-07-21 22:54:45,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3894 states. [2020-07-21 22:54:45,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3894 states to 3894 states and 4817 transitions. [2020-07-21 22:54:45,610 INFO L78 Accepts]: Start accepts. Automaton has 3894 states and 4817 transitions. Word has length 177 [2020-07-21 22:54:45,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:54:45,611 INFO L479 AbstractCegarLoop]: Abstraction has 3894 states and 4817 transitions. [2020-07-21 22:54:45,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 22:54:45,611 INFO L276 IsEmpty]: Start isEmpty. Operand 3894 states and 4817 transitions. [2020-07-21 22:54:45,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-07-21 22:54:45,622 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:54:45,623 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:54:45,836 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:54:45,837 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:54:45,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:54:45,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1391741998, now seen corresponding path program 1 times [2020-07-21 22:54:45,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:54:45,838 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1574138780] [2020-07-21 22:54:45,838 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 22:54:45,936 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:54:45,936 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:54:45,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:54:45,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:54:45,985 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:54:45,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:54:46,063 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:54:46,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1574138780] [2020-07-21 22:54:46,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:54:46,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:54:46,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017408839] [2020-07-21 22:54:46,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:54:46,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:54:46,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:54:46,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:54:46,066 INFO L87 Difference]: Start difference. First operand 3894 states and 4817 transitions. Second operand 7 states. [2020-07-21 22:54:47,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:54:47,410 INFO L93 Difference]: Finished difference Result 8237 states and 10207 transitions. [2020-07-21 22:54:47,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 22:54:47,411 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 194 [2020-07-21 22:54:47,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:54:47,434 INFO L225 Difference]: With dead ends: 8237 [2020-07-21 22:54:47,434 INFO L226 Difference]: Without dead ends: 4039 [2020-07-21 22:54:47,448 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 383 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 22:54:47,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4039 states. [2020-07-21 22:54:47,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4039 to 4022. [2020-07-21 22:54:47,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4022 states. [2020-07-21 22:54:47,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4022 states to 4022 states and 4490 transitions. [2020-07-21 22:54:47,567 INFO L78 Accepts]: Start accepts. Automaton has 4022 states and 4490 transitions. Word has length 194 [2020-07-21 22:54:47,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:54:47,568 INFO L479 AbstractCegarLoop]: Abstraction has 4022 states and 4490 transitions. [2020-07-21 22:54:47,568 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:54:47,568 INFO L276 IsEmpty]: Start isEmpty. Operand 4022 states and 4490 transitions. [2020-07-21 22:54:47,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-07-21 22:54:47,582 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:54:47,582 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:54:47,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:54:47,797 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:54:47,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:54:47,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1182492955, now seen corresponding path program 1 times [2020-07-21 22:54:47,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:54:47,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [313235713] [2020-07-21 22:54:47,798 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 22:54:47,908 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:54:47,909 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:54:47,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:54:47,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:54:47,973 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 181 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-07-21 22:54:47,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:54:48,074 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 152 proven. 36 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-07-21 22:54:48,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [313235713] [2020-07-21 22:54:48,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:54:48,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 22:54:48,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499650394] [2020-07-21 22:54:48,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 22:54:48,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:54:48,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 22:54:48,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 22:54:48,077 INFO L87 Difference]: Start difference. First operand 4022 states and 4490 transitions. Second operand 6 states. [2020-07-21 22:54:49,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:54:49,100 INFO L93 Difference]: Finished difference Result 8751 states and 9930 transitions. [2020-07-21 22:54:49,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 22:54:49,100 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 252 [2020-07-21 22:54:49,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:54:49,115 INFO L225 Difference]: With dead ends: 8751 [2020-07-21 22:54:49,116 INFO L226 Difference]: Without dead ends: 3251 [2020-07-21 22:54:49,128 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 500 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:54:49,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3251 states. [2020-07-21 22:54:49,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3251 to 3092. [2020-07-21 22:54:49,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3092 states. [2020-07-21 22:54:49,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3092 states to 3092 states and 3387 transitions. [2020-07-21 22:54:49,196 INFO L78 Accepts]: Start accepts. Automaton has 3092 states and 3387 transitions. Word has length 252 [2020-07-21 22:54:49,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:54:49,196 INFO L479 AbstractCegarLoop]: Abstraction has 3092 states and 3387 transitions. [2020-07-21 22:54:49,197 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 22:54:49,197 INFO L276 IsEmpty]: Start isEmpty. Operand 3092 states and 3387 transitions. [2020-07-21 22:54:49,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2020-07-21 22:54:49,209 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:54:49,210 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:54:49,424 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:54:49,425 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:54:49,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:54:49,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1319946775, now seen corresponding path program 1 times [2020-07-21 22:54:49,426 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:54:49,427 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [783398139] [2020-07-21 22:54:49,427 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 22:54:49,561 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:54:49,561 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:54:49,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:54:49,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:54:49,619 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 246 proven. 2 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2020-07-21 22:54:49,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:54:49,786 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 178 proven. 72 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-07-21 22:54:49,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [783398139] [2020-07-21 22:54:49,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:54:49,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 22:54:49,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949706674] [2020-07-21 22:54:49,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 22:54:49,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:54:49,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 22:54:49,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 22:54:49,788 INFO L87 Difference]: Start difference. First operand 3092 states and 3387 transitions. Second operand 6 states. [2020-07-21 22:54:50,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:54:50,650 INFO L93 Difference]: Finished difference Result 6785 states and 7567 transitions. [2020-07-21 22:54:50,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:54:50,651 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 282 [2020-07-21 22:54:50,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:54:50,667 INFO L225 Difference]: With dead ends: 6785 [2020-07-21 22:54:50,667 INFO L226 Difference]: Without dead ends: 3699 [2020-07-21 22:54:50,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 569 GetRequests, 560 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:54:50,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3699 states. [2020-07-21 22:54:50,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3699 to 3684. [2020-07-21 22:54:50,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3684 states. [2020-07-21 22:54:50,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3684 states to 3684 states and 4071 transitions. [2020-07-21 22:54:50,751 INFO L78 Accepts]: Start accepts. Automaton has 3684 states and 4071 transitions. Word has length 282 [2020-07-21 22:54:50,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:54:50,751 INFO L479 AbstractCegarLoop]: Abstraction has 3684 states and 4071 transitions. [2020-07-21 22:54:50,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 22:54:50,752 INFO L276 IsEmpty]: Start isEmpty. Operand 3684 states and 4071 transitions. [2020-07-21 22:54:50,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2020-07-21 22:54:50,764 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:54:50,765 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:54:50,980 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:54:50,981 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:54:50,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:54:50,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1846107314, now seen corresponding path program 1 times [2020-07-21 22:54:50,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:54:50,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [915996475] [2020-07-21 22:54:50,983 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 22:54:51,103 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:54:51,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:54:51,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 22:54:51,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:54:51,179 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 252 proven. 2 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-07-21 22:54:51,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:54:51,336 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 200 proven. 56 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-07-21 22:54:51,337 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [915996475] [2020-07-21 22:54:51,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:54:51,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:54:51,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706669536] [2020-07-21 22:54:51,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:54:51,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:54:51,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:54:51,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:54:51,339 INFO L87 Difference]: Start difference. First operand 3684 states and 4071 transitions. Second operand 7 states. [2020-07-21 22:54:52,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:54:52,237 INFO L93 Difference]: Finished difference Result 7094 states and 7872 transitions. [2020-07-21 22:54:52,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:54:52,238 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 303 [2020-07-21 22:54:52,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:54:52,250 INFO L225 Difference]: With dead ends: 7094 [2020-07-21 22:54:52,251 INFO L226 Difference]: Without dead ends: 3258 [2020-07-21 22:54:52,258 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 609 GetRequests, 602 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:54:52,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3258 states. [2020-07-21 22:54:52,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3258 to 3244. [2020-07-21 22:54:52,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3244 states. [2020-07-21 22:54:52,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3244 states to 3244 states and 3521 transitions. [2020-07-21 22:54:52,321 INFO L78 Accepts]: Start accepts. Automaton has 3244 states and 3521 transitions. Word has length 303 [2020-07-21 22:54:52,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:54:52,322 INFO L479 AbstractCegarLoop]: Abstraction has 3244 states and 3521 transitions. [2020-07-21 22:54:52,322 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:54:52,322 INFO L276 IsEmpty]: Start isEmpty. Operand 3244 states and 3521 transitions. [2020-07-21 22:54:52,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2020-07-21 22:54:52,333 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:54:52,333 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:54:52,546 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:54:52,547 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:54:52,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:54:52,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1171345107, now seen corresponding path program 1 times [2020-07-21 22:54:52,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:54:52,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [571643787] [2020-07-21 22:54:52,549 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 22:54:52,699 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:54:52,699 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:54:52,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:54:52,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:54:52,810 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 280 proven. 2 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2020-07-21 22:54:52,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:54:52,920 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 216 proven. 10 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2020-07-21 22:54:52,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [571643787] [2020-07-21 22:54:52,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:54:52,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:54:52,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651392730] [2020-07-21 22:54:52,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:54:52,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:54:52,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:54:52,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:54:52,922 INFO L87 Difference]: Start difference. First operand 3244 states and 3521 transitions. Second operand 7 states. [2020-07-21 22:54:53,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:54:53,461 INFO L93 Difference]: Finished difference Result 5410 states and 5873 transitions. [2020-07-21 22:54:53,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 22:54:53,461 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 305 [2020-07-21 22:54:53,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:54:53,471 INFO L225 Difference]: With dead ends: 5410 [2020-07-21 22:54:53,471 INFO L226 Difference]: Without dead ends: 2615 [2020-07-21 22:54:53,477 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 611 GetRequests, 604 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 22:54:53,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2615 states. [2020-07-21 22:54:53,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2615 to 2605. [2020-07-21 22:54:53,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2605 states. [2020-07-21 22:54:53,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2605 states to 2605 states and 2779 transitions. [2020-07-21 22:54:53,537 INFO L78 Accepts]: Start accepts. Automaton has 2605 states and 2779 transitions. Word has length 305 [2020-07-21 22:54:53,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:54:53,537 INFO L479 AbstractCegarLoop]: Abstraction has 2605 states and 2779 transitions. [2020-07-21 22:54:53,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:54:53,538 INFO L276 IsEmpty]: Start isEmpty. Operand 2605 states and 2779 transitions. [2020-07-21 22:54:53,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2020-07-21 22:54:53,549 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:54:53,549 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:54:53,762 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:54:53,763 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:54:53,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:54:53,764 INFO L82 PathProgramCache]: Analyzing trace with hash -698539143, now seen corresponding path program 1 times [2020-07-21 22:54:53,764 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:54:53,765 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1274238374] [2020-07-21 22:54:53,765 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 22:54:53,882 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:54:53,883 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:54:53,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 17 conjunts are in the unsatisfiable core [2020-07-21 22:54:53,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:54:53,945 INFO L501 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-07-21 22:54:53,946 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 22:54:54,098 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 332 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-21 22:54:54,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:54:54,245 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-07-21 22:54:54,246 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:54:54,403 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 266 proven. 36 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2020-07-21 22:54:54,403 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1274238374] [2020-07-21 22:54:54,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:54:54,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 13 [2020-07-21 22:54:54,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853115952] [2020-07-21 22:54:54,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-21 22:54:54,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:54:54,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-21 22:54:54,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-07-21 22:54:54,405 INFO L87 Difference]: Start difference. First operand 2605 states and 2779 transitions. Second operand 13 states. [2020-07-21 22:54:55,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:54:55,503 INFO L93 Difference]: Finished difference Result 3810 states and 4057 transitions. [2020-07-21 22:54:55,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-21 22:54:55,504 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 315 [2020-07-21 22:54:55,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:54:55,512 INFO L225 Difference]: With dead ends: 3810 [2020-07-21 22:54:55,512 INFO L226 Difference]: Without dead ends: 2603 [2020-07-21 22:54:55,516 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 640 GetRequests, 623 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2020-07-21 22:54:55,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2603 states. [2020-07-21 22:54:55,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2603 to 2601. [2020-07-21 22:54:55,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2601 states. [2020-07-21 22:54:55,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2601 states to 2601 states and 2772 transitions. [2020-07-21 22:54:55,562 INFO L78 Accepts]: Start accepts. Automaton has 2601 states and 2772 transitions. Word has length 315 [2020-07-21 22:54:55,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:54:55,562 INFO L479 AbstractCegarLoop]: Abstraction has 2601 states and 2772 transitions. [2020-07-21 22:54:55,562 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-21 22:54:55,563 INFO L276 IsEmpty]: Start isEmpty. Operand 2601 states and 2772 transitions. [2020-07-21 22:54:55,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-07-21 22:54:55,570 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:54:55,570 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:54:55,785 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:54:55,786 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:54:55,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:54:55,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1648530112, now seen corresponding path program 1 times [2020-07-21 22:54:55,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:54:55,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1383930066] [2020-07-21 22:54:55,787 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 22:54:55,982 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:54:55,982 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:54:55,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 22:54:55,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:54:56,073 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 357 proven. 2 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2020-07-21 22:54:56,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:54:56,166 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 245 proven. 26 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-07-21 22:54:56,166 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1383930066] [2020-07-21 22:54:56,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:54:56,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:54:56,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984489862] [2020-07-21 22:54:56,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:54:56,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:54:56,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:54:56,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:54:56,168 INFO L87 Difference]: Start difference. First operand 2601 states and 2772 transitions. Second operand 7 states. [2020-07-21 22:54:56,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:54:56,841 INFO L93 Difference]: Finished difference Result 4718 states and 5034 transitions. [2020-07-21 22:54:56,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:54:56,842 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 327 [2020-07-21 22:54:56,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:54:56,855 INFO L225 Difference]: With dead ends: 4718 [2020-07-21 22:54:56,856 INFO L226 Difference]: Without dead ends: 2617 [2020-07-21 22:54:56,860 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 650 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:54:56,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2617 states. [2020-07-21 22:54:56,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2617 to 2299. [2020-07-21 22:54:56,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2299 states. [2020-07-21 22:54:56,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 2435 transitions. [2020-07-21 22:54:56,902 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 2435 transitions. Word has length 327 [2020-07-21 22:54:56,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:54:56,903 INFO L479 AbstractCegarLoop]: Abstraction has 2299 states and 2435 transitions. [2020-07-21 22:54:56,903 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:54:56,903 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 2435 transitions. [2020-07-21 22:54:56,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2020-07-21 22:54:56,909 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:54:56,910 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:54:57,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:54:57,123 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:54:57,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:54:57,123 INFO L82 PathProgramCache]: Analyzing trace with hash -722913179, now seen corresponding path program 1 times [2020-07-21 22:54:57,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:54:57,124 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [325067197] [2020-07-21 22:54:57,124 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:54:57,349 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:54:57,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:54:57,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 22:54:57,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:54:57,489 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 361 proven. 2 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2020-07-21 22:54:57,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:54:57,601 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 289 proven. 32 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2020-07-21 22:54:57,601 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [325067197] [2020-07-21 22:54:57,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:54:57,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:54:57,602 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064610718] [2020-07-21 22:54:57,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:54:57,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:54:57,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:54:57,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:54:57,603 INFO L87 Difference]: Start difference. First operand 2299 states and 2435 transitions. Second operand 7 states. [2020-07-21 22:54:58,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:54:58,409 INFO L93 Difference]: Finished difference Result 2735 states and 2906 transitions. [2020-07-21 22:54:58,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 22:54:58,413 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 342 [2020-07-21 22:54:58,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:54:58,414 INFO L225 Difference]: With dead ends: 2735 [2020-07-21 22:54:58,414 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 22:54:58,419 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 687 GetRequests, 680 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:54:58,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 22:54:58,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 22:54:58,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 22:54:58,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 22:54:58,420 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 342 [2020-07-21 22:54:58,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:54:58,420 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 22:54:58,420 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:54:58,420 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 22:54:58,421 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 22:54:58,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:54:58,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 22:54:59,264 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 145 [2020-07-21 22:54:59,480 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 156 [2020-07-21 22:55:00,967 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 169 DAG size of output: 104 [2020-07-21 22:55:01,726 WARN L193 SmtUtils]: Spent 695.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 68 [2020-07-21 22:55:02,427 WARN L193 SmtUtils]: Spent 697.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 68 [2020-07-21 22:55:02,431 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:55:02,432 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a11~0 |old(~a11~0)|) (or (not (= 1 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (not (= 1 ~a21~0)) (= 8 ~a17~0)) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 22:55:02,432 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:55:02,432 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,433 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,433 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,433 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,433 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,434 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 22:55:02,434 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 22:55:02,434 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 22:55:02,434 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 22:55:02,434 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 22:55:02,435 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 22:55:02,435 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 22:55:02,435 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 22:55:02,435 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 22:55:02,435 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 22:55:02,435 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 22:55:02,435 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 22:55:02,436 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 22:55:02,436 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,436 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,436 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,436 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,436 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 22:55:02,436 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,436 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 22:55:02,436 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 22:55:02,437 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 22:55:02,437 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 22:55:02,437 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 22:55:02,437 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 22:55:02,437 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 22:55:02,437 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 22:55:02,437 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 22:55:02,437 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 22:55:02,438 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 22:55:02,438 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 22:55:02,438 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 22:55:02,438 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 22:55:02,438 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 22:55:02,438 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,438 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,438 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,438 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,439 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,439 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 550) no Hoare annotation was computed. [2020-07-21 22:55:02,439 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 22:55:02,439 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 22:55:02,439 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 22:55:02,439 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 22:55:02,440 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 22:55:02,440 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 22:55:02,440 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 22:55:02,440 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 22:55:02,440 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 22:55:02,440 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 22:55:02,440 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 22:55:02,440 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,440 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,441 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,441 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,441 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,441 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 22:55:02,441 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 22:55:02,441 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 22:55:02,441 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 22:55:02,441 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 22:55:02,441 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 22:55:02,442 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 22:55:02,442 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 22:55:02,442 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 22:55:02,442 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 22:55:02,442 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 22:55:02,442 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 22:55:02,442 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 22:55:02,443 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,443 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,443 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,443 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,443 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,443 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 22:55:02,443 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 22:55:02,443 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 22:55:02,443 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 22:55:02,444 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 22:55:02,444 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 22:55:02,444 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 22:55:02,444 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 22:55:02,444 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 22:55:02,444 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 22:55:02,444 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 22:55:02,444 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 22:55:02,444 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 22:55:02,444 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 22:55:02,444 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 22:55:02,445 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 22:55:02,445 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,445 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,445 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,445 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,445 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 22:55:02,445 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,445 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 22:55:02,445 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,445 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 22:55:02,445 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 22:55:02,445 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 22:55:02,445 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,446 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,446 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 22:55:02,446 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 22:55:02,446 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 22:55:02,446 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 22:55:02,446 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 22:55:02,446 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 22:55:02,446 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 22:55:02,446 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 22:55:02,446 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 22:55:02,446 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 22:55:02,447 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 22:55:02,447 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,447 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,447 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,447 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,447 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,447 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,447 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 22:55:02,448 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 22:55:02,448 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 22:55:02,448 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 22:55:02,448 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 22:55:02,448 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 22:55:02,448 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 22:55:02,448 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 22:55:02,448 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 22:55:02,448 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 22:55:02,448 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 22:55:02,449 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,449 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,449 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,449 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,449 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,449 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,449 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 22:55:02,449 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 22:55:02,449 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 22:55:02,450 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 22:55:02,450 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 22:55:02,450 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 22:55:02,450 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 22:55:02,450 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 22:55:02,450 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 22:55:02,450 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 22:55:02,450 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 22:55:02,450 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 22:55:02,450 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 22:55:02,451 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 22:55:02,451 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,451 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,451 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,451 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse4 (= ~a11~0 |old(~a11~0)|)) (.cse12 (= ~a17~0 |old(~a17~0)|)) (.cse5 (= ~a19~0 |old(~a19~0)|)) (.cse6 (= ~a28~0 |old(~a28~0)|)) (.cse8 (= 1 ~a25~0)) (.cse2 (= 1 |old(~a11~0)|))) (let ((.cse20 (not (<= 10 |old(~a28~0)|))) (.cse23 (not (< |old(~a28~0)| 11))) (.cse18 (= 1 ~a11~0)) (.cse7 (= 8 ~a17~0)) (.cse19 (not .cse2)) (.cse16 (not (<= |old(~a25~0)| 0))) (.cse15 (not (<= |old(~a17~0)| 7))) (.cse11 (<= ~a28~0 |old(~a28~0)|)) (.cse24 (or (<= ~a11~0 0) (< 0 |old(~a11~0)|))) (.cse13 (<= |old(~a28~0)| ~a28~0)) (.cse14 (= ~a25~0 |old(~a25~0)|)) (.cse25 (<= ~a11~0 |old(~a11~0)|)) (.cse1 (not (= 8 |old(~a17~0)|))) (.cse0 (not (= 1 |old(~a19~0)|))) (.cse10 (not (<= |old(~a28~0)| 9))) (.cse3 (not (= 1 |old(~a25~0)|))) (.cse21 (and .cse4 .cse12 .cse5 .cse6 .cse8)) (.cse17 (not (<= |old(~a17~0)| 8))) (.cse9 (not (= 1 ~a21~0))) (.cse22 (not (<= |old(~a11~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (<= 11 |old(~a28~0)|)) (and .cse4 .cse5 .cse6 .cse7 .cse8) .cse9) (or .cse10 (and .cse11 .cse12 .cse5 .cse13 .cse14) .cse15 .cse9) (or .cse10 .cse16 .cse17 .cse9 (and .cse18 .cse12 .cse5 .cse6 .cse14) .cse19) (or .cse3 .cse20 .cse21 .cse17 .cse9 .cse22 .cse23) (or .cse0 .cse1 .cse20 (and .cse11 .cse24 .cse5 .cse7 .cse13 .cse14) .cse9 .cse23) (or .cse15 (and .cse25 .cse11 .cse12 .cse5 .cse13 .cse14) .cse9 .cse22 .cse23) (or .cse0 .cse1 (and .cse18 (= 9 ~a28~0) .cse5 .cse7 .cse8) .cse3 .cse9 (not (= 9 |old(~a28~0)|)) .cse19) (or .cse10 .cse16 (and .cse4 .cse12 .cse5 .cse6 .cse14) .cse17 .cse9 .cse22) (or (and .cse25 .cse11 .cse12 .cse5 .cse13 .cse8) .cse3 .cse15 .cse9 .cse22) (or .cse16 .cse15 (and .cse11 .cse24 .cse12 .cse5 .cse13 .cse14) .cse9) (or .cse0 .cse25 (not (= 10 |old(~a28~0)|)) .cse1 (and (not (= 6 |calculate_output_#in~input|)) (not (= 1 |calculate_output_#in~input|)) (not (= 4 |calculate_output_#in~input|)) (not (= 5 |calculate_output_#in~input|)) (not (= 3 |calculate_output_#in~input|))) .cse9 .cse22) (or .cse0 .cse10 .cse3 .cse21 .cse17 .cse9 .cse22)))) [2020-07-21 22:55:02,451 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,452 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,452 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,452 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 22:55:02,452 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 22:55:02,452 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 22:55:02,452 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 22:55:02,452 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 22:55:02,452 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 22:55:02,452 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 22:55:02,452 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 22:55:02,453 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 22:55:02,453 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 22:55:02,453 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 22:55:02,453 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 22:55:02,453 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 22:55:02,453 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,453 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,453 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,453 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,453 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,454 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,454 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 22:55:02,454 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 22:55:02,454 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 22:55:02,454 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 22:55:02,454 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 22:55:02,454 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 22:55:02,454 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 22:55:02,454 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 22:55:02,454 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 22:55:02,455 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 22:55:02,455 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 22:55:02,455 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 22:55:02,455 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 22:55:02,455 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 22:55:02,455 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 22:55:02,455 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 22:55:02,455 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,455 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,455 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,455 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,456 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 22:55:02,456 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 22:55:02,456 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 22:55:02,456 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 22:55:02,456 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 22:55:02,456 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 22:55:02,456 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 22:55:02,456 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 22:55:02,456 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 22:55:02,457 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 22:55:02,457 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 22:55:02,457 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 22:55:02,457 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 22:55:02,457 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 22:55:02,457 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 22:55:02,457 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 22:55:02,457 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 22:55:02,458 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 22:55:02,458 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 22:55:02,458 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 22:55:02,458 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:55:02,458 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a25~0 0) (= 7 ~a28~0) (= 1 ~a21~0) (= 8 ~a17~0)) [2020-07-21 22:55:02,458 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 22:55:02,458 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:55:02,458 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (not (= 7 |old(~a28~0)|)) (not (= 1 ~a21~0)) (and (= ~a11~0 |old(~a11~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a28~0 |old(~a28~0)|) (= 8 ~a17~0) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a11~0)| 0))) [2020-07-21 22:55:02,459 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse4 (= 1 ~a25~0))) (let ((.cse9 (or (< 9 ~a28~0) (not .cse4))) (.cse10 (< 8 ~a28~0)) (.cse12 (or (and (= 1 |old(~a25~0)|) (<= |old(~a28~0)| 9)) (<= |old(~a28~0)| 8))) (.cse5 (= ~a11~0 |old(~a11~0)|)) (.cse1 (<= ~a11~0 0)) (.cse8 (<= ~a17~0 7)) (.cse0 (= 1 ~a19~0)) (.cse11 (< ~a28~0 11)) (.cse3 (= 8 ~a17~0)) (.cse13 (= 1 ~a11~0)) (.cse6 (<= ~a17~0 8)) (.cse2 (<= ~a28~0 9)) (.cse7 (<= ~a25~0 0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 (<= 9 ~a28~0) .cse4) (not (= 7 |old(~a28~0)|)) (and .cse5 .cse6 .cse2 .cse7) (and .cse7 .cse8) (and .cse2 .cse8) (and .cse9 .cse10 .cse1 .cse8 .cse11 .cse12) (and .cse9 .cse10 .cse1 .cse5 .cse6 .cse11 .cse12 .cse4) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse5 .cse3 .cse4) (and .cse0 .cse13 (= 9 ~a28~0) .cse3 .cse4) (not (= 8 |old(~a17~0)|)) (and .cse1 .cse8 .cse4) (not (<= |old(~a25~0)| 0)) (and .cse0 .cse11 (<= 10 ~a28~0) .cse3) (and .cse13 .cse6 .cse2 .cse7)))) [2020-07-21 22:55:02,459 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 22:55:02,459 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 22:55:02,459 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse4 (= 1 ~a25~0))) (let ((.cse9 (or (< 9 ~a28~0) (not .cse4))) (.cse10 (< 8 ~a28~0)) (.cse12 (or (and (= 1 |old(~a25~0)|) (<= |old(~a28~0)| 9)) (<= |old(~a28~0)| 8))) (.cse5 (= ~a11~0 |old(~a11~0)|)) (.cse1 (<= ~a11~0 0)) (.cse8 (<= ~a17~0 7)) (.cse0 (= 1 ~a19~0)) (.cse11 (< ~a28~0 11)) (.cse3 (= 8 ~a17~0)) (.cse13 (= 1 ~a11~0)) (.cse6 (<= ~a17~0 8)) (.cse2 (<= ~a28~0 9)) (.cse7 (<= ~a25~0 0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 (<= 9 ~a28~0) .cse4) (not (= 7 |old(~a28~0)|)) (and .cse5 .cse6 .cse2 .cse7) (and .cse7 .cse8) (and .cse2 .cse8) (and .cse9 .cse10 .cse1 .cse8 .cse11 .cse12) (and .cse9 .cse10 .cse1 .cse5 .cse6 .cse11 .cse12 .cse4) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse5 .cse3 .cse4) (and .cse0 .cse13 (= 9 ~a28~0) .cse3 .cse4) (not (= 8 |old(~a17~0)|)) (and .cse1 .cse8 .cse4) (not (<= |old(~a25~0)| 0)) (and .cse0 .cse11 (<= 10 ~a28~0) .cse3) (and .cse13 .cse6 .cse2 .cse7)))) [2020-07-21 22:55:02,459 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 22:55:02,459 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 22:55:02,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:55:02 BoogieIcfgContainer [2020-07-21 22:55:02,484 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 22:55:02,486 INFO L168 Benchmark]: Toolchain (without parser) took 34547.00 ms. Allocated memory was 143.7 MB in the beginning and 695.2 MB in the end (delta: 551.6 MB). Free memory was 100.2 MB in the beginning and 162.9 MB in the end (delta: -62.7 MB). Peak memory consumption was 528.0 MB. Max. memory is 7.1 GB. [2020-07-21 22:55:02,486 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 143.7 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 22:55:02,487 INFO L168 Benchmark]: CACSL2BoogieTranslator took 768.54 ms. Allocated memory was 143.7 MB in the beginning and 205.0 MB in the end (delta: 61.3 MB). Free memory was 99.8 MB in the beginning and 171.7 MB in the end (delta: -71.9 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. [2020-07-21 22:55:02,488 INFO L168 Benchmark]: Boogie Preprocessor took 108.06 ms. Allocated memory is still 205.0 MB. Free memory was 171.7 MB in the beginning and 166.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-21 22:55:02,488 INFO L168 Benchmark]: RCFGBuilder took 1288.71 ms. Allocated memory was 205.0 MB in the beginning and 238.0 MB in the end (delta: 33.0 MB). Free memory was 166.8 MB in the beginning and 182.3 MB in the end (delta: -15.6 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. [2020-07-21 22:55:02,489 INFO L168 Benchmark]: TraceAbstraction took 32374.92 ms. Allocated memory was 238.0 MB in the beginning and 695.2 MB in the end (delta: 457.2 MB). Free memory was 182.3 MB in the beginning and 162.9 MB in the end (delta: 19.4 MB). Peak memory consumption was 515.8 MB. Max. memory is 7.1 GB. [2020-07-21 22:55:02,493 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 143.7 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 768.54 ms. Allocated memory was 143.7 MB in the beginning and 205.0 MB in the end (delta: 61.3 MB). Free memory was 99.8 MB in the beginning and 171.7 MB in the end (delta: -71.9 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 108.06 ms. Allocated memory is still 205.0 MB. Free memory was 171.7 MB in the beginning and 166.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1288.71 ms. Allocated memory was 205.0 MB in the beginning and 238.0 MB in the end (delta: 33.0 MB). Free memory was 166.8 MB in the beginning and 182.3 MB in the end (delta: -15.6 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 32374.92 ms. Allocated memory was 238.0 MB in the beginning and 695.2 MB in the end (delta: 457.2 MB). Free memory was 182.3 MB in the beginning and 162.9 MB in the end (delta: 19.4 MB). Peak memory consumption was 515.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 550]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (((((((((((((((!(1 == \old(a19)) || (((((1 == a19 && a11 <= 0) && a28 <= 9) && 8 == a17) && 9 <= a28) && 1 == a25)) || !(7 == \old(a28))) || (((a11 == \old(a11) && a17 <= 8) && a28 <= 9) && a25 <= 0)) || (a25 <= 0 && a17 <= 7)) || (a28 <= 9 && a17 <= 7)) || ((((((9 < a28 || !(1 == a25)) && 8 < a28) && a11 <= 0) && a17 <= 7) && a28 < 11) && ((1 == \old(a25) && \old(a28) <= 9) || \old(a28) <= 8))) || ((((((((9 < a28 || !(1 == a25)) && 8 < a28) && a11 <= 0) && a11 == \old(a11)) && a17 <= 8) && a28 < 11) && ((1 == \old(a25) && \old(a28) <= 9) || \old(a28) <= 8)) && 1 == a25)) || !(1 == a21)) || !(\old(a11) <= 0)) || (((1 == a19 && a11 == \old(a11)) && 8 == a17) && 1 == a25)) || ((((1 == a19 && 1 == a11) && 9 == a28) && 8 == a17) && 1 == a25)) || !(8 == \old(a17))) || ((a11 <= 0 && a17 <= 7) && 1 == a25)) || !(\old(a25) <= 0)) || (((1 == a19 && a28 < 11) && 10 <= a28) && 8 == a17)) || (((1 == a11 && a17 <= 8) && a28 <= 9) && a25 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 28.4s, OverallIterations: 14, TraceHistogramMax: 7, AutomataDifference: 17.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1071 SDtfs, 8770 SDslu, 1046 SDs, 0 SdLazy, 12600 SolverSat, 2116 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6313 GetRequests, 6145 SyntacticMatches, 12 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 621 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4022occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 14 MinimizatonAttempts, 718 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 224 PreInvPairs, 284 NumberOfFragments, 972 HoareAnnotationTreeSize, 224 FomulaSimplifications, 11449 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 11815 FormulaSimplificationTreeSizeReductionInter, 2.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 3264 NumberOfCodeBlocks, 1854 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 6203 ConstructedInterpolants, 0 QuantifiedInterpolants, 4601646 SizeOfPredicates, 57 NumberOfNonLiveVariables, 5895 ConjunctsInSsa, 202 ConjunctsInUnsatCore, 26 InterpolantComputations, 2 PerfectInterpolantSequences, 5740/6046 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...