/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label56.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 13:52:45,717 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 13:52:45,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 13:52:45,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 13:52:45,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 13:52:45,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 13:52:45,748 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 13:52:45,749 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 13:52:45,751 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 13:52:45,753 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 13:52:45,755 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 13:52:45,756 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 13:52:45,757 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 13:52:45,758 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 13:52:45,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 13:52:45,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 13:52:45,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 13:52:45,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 13:52:45,771 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 13:52:45,786 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 13:52:45,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 13:52:45,788 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 13:52:45,788 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 13:52:45,788 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 13:52:45,788 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 13:52:45,789 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 13:52:45,789 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 13:52:45,789 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 13:52:45,789 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 13:52:45,789 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 13:52:45,789 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 13:52:45,790 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 13:52:45,790 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 13:52:45,790 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 13:52:45,790 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 13:52:45,790 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 13:52:45,791 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 13:52:45,791 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 13:52:45,791 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 13:52:45,791 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 13:52:45,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 13:52:45,792 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 13:52:45,792 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 13:52:45,792 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 13:52:45,792 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 13:52:45,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:45,793 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 13:52:45,793 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 13:52:45,793 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 13:52:46,087 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 13:52:46,111 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 13:52:46,117 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 13:52:46,119 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 13:52:46,121 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 13:52:46,122 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label56.c [2020-07-21 13:52:46,198 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7edb7242c/a78416a312e74c44b5950273b514ba31/FLAGa4206bfc0 [2020-07-21 13:52:46,804 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 13:52:46,805 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label56.c [2020-07-21 13:52:46,822 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7edb7242c/a78416a312e74c44b5950273b514ba31/FLAGa4206bfc0 [2020-07-21 13:52:47,014 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7edb7242c/a78416a312e74c44b5950273b514ba31 [2020-07-21 13:52:47,023 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 13:52:47,027 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 13:52:47,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 13:52:47,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 13:52:47,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 13:52:47,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:52:47" (1/1) ... [2020-07-21 13:52:47,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f9c8426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:47, skipping insertion in model container [2020-07-21 13:52:47,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:52:47" (1/1) ... [2020-07-21 13:52:47,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 13:52:47,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 13:52:47,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:52:47,542 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 13:52:47,756 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:52:47,780 INFO L208 MainTranslator]: Completed translation [2020-07-21 13:52:47,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:47 WrapperNode [2020-07-21 13:52:47,781 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 13:52:47,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 13:52:47,784 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 13:52:47,784 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 13:52:47,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:47" (1/1) ... [2020-07-21 13:52:47,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:47" (1/1) ... [2020-07-21 13:52:47,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:47" (1/1) ... [2020-07-21 13:52:47,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:47" (1/1) ... [2020-07-21 13:52:47,859 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:47" (1/1) ... [2020-07-21 13:52:47,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:47" (1/1) ... [2020-07-21 13:52:47,890 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:47" (1/1) ... [2020-07-21 13:52:47,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 13:52:47,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 13:52:47,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 13:52:47,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 13:52:47,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:47" (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 13:52:47,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 13:52:47,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 13:52:47,977 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 13:52:47,977 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 13:52:47,978 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 13:52:47,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 13:52:47,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 13:52:47,978 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 13:52:47,978 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 13:52:47,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 13:52:47,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 13:52:49,201 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 13:52:49,201 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 13:52:49,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:52:49 BoogieIcfgContainer [2020-07-21 13:52:49,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 13:52:49,213 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 13:52:49,214 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 13:52:49,217 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 13:52:49,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:52:47" (1/3) ... [2020-07-21 13:52:49,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a96b4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:52:49, skipping insertion in model container [2020-07-21 13:52:49,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:47" (2/3) ... [2020-07-21 13:52:49,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a96b4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:52:49, skipping insertion in model container [2020-07-21 13:52:49,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:52:49" (3/3) ... [2020-07-21 13:52:49,223 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label56.c [2020-07-21 13:52:49,235 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 13:52:49,250 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 13:52:49,270 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 13:52:49,307 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 13:52:49,308 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 13:52:49,309 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 13:52:49,309 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 13:52:49,309 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 13:52:49,309 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 13:52:49,310 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 13:52:49,310 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 13:52:49,340 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 13:52:49,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-21 13:52:49,365 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:49,367 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] [2020-07-21 13:52:49,367 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:49,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:49,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1821084561, now seen corresponding path program 1 times [2020-07-21 13:52:49,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:49,383 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [39247172] [2020-07-21 13:52:49,383 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 13:52:49,567 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:49,567 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:49,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:52:49,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:49,695 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 13:52:49,695 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:52:49,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [39247172] [2020-07-21 13:52:49,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:52:49,699 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:52:49,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663423009] [2020-07-21 13:52:49,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:52:49,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:49,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:52:49,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:52:49,734 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-21 13:52:50,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:50,682 INFO L93 Difference]: Finished difference Result 619 states and 1060 transitions. [2020-07-21 13:52:50,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:52:50,684 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2020-07-21 13:52:50,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:50,701 INFO L225 Difference]: With dead ends: 619 [2020-07-21 13:52:50,701 INFO L226 Difference]: Without dead ends: 321 [2020-07-21 13:52:50,709 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 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 13:52:50,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-07-21 13:52:50,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2020-07-21 13:52:50,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-07-21 13:52:50,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 421 transitions. [2020-07-21 13:52:50,788 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 421 transitions. Word has length 129 [2020-07-21 13:52:50,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:50,790 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 421 transitions. [2020-07-21 13:52:50,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:52:50,790 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 421 transitions. [2020-07-21 13:52:50,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-07-21 13:52:50,795 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:50,795 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] [2020-07-21 13:52:51,008 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:51,009 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:51,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:51,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1159828288, now seen corresponding path program 1 times [2020-07-21 13:52:51,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:51,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1115123020] [2020-07-21 13:52:51,011 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 13:52:51,115 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:51,115 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:51,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 13:52:51,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:51,211 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 13:52:51,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:51,296 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 13:52:51,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1115123020] [2020-07-21 13:52:51,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 13:52:51,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-07-21 13:52:51,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326589438] [2020-07-21 13:52:51,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 13:52:51,300 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:51,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 13:52:51,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:52:51,301 INFO L87 Difference]: Start difference. First operand 319 states and 421 transitions. Second operand 4 states. [2020-07-21 13:52:51,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:51,982 INFO L93 Difference]: Finished difference Result 941 states and 1256 transitions. [2020-07-21 13:52:51,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 13:52:51,983 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 138 [2020-07-21 13:52:51,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:51,989 INFO L225 Difference]: With dead ends: 941 [2020-07-21 13:52:51,989 INFO L226 Difference]: Without dead ends: 628 [2020-07-21 13:52:51,991 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 268 SyntacticMatches, 4 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:52:51,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2020-07-21 13:52:52,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 628. [2020-07-21 13:52:52,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2020-07-21 13:52:52,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 815 transitions. [2020-07-21 13:52:52,023 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 815 transitions. Word has length 138 [2020-07-21 13:52:52,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:52,024 INFO L479 AbstractCegarLoop]: Abstraction has 628 states and 815 transitions. [2020-07-21 13:52:52,024 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 13:52:52,024 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 815 transitions. [2020-07-21 13:52:52,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-07-21 13:52:52,030 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:52,030 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:52:52,244 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:52,245 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:52,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:52,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1202576379, now seen corresponding path program 1 times [2020-07-21 13:52:52,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:52,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1593789553] [2020-07-21 13:52:52,248 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 13:52:52,354 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:52,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:52,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:52,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:52,416 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 13:52:52,417 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:52:52,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1593789553] [2020-07-21 13:52:52,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:52:52,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:52:52,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227623860] [2020-07-21 13:52:52,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:52:52,419 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:52,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:52:52,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:52:52,420 INFO L87 Difference]: Start difference. First operand 628 states and 815 transitions. Second operand 3 states. [2020-07-21 13:52:53,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:53,129 INFO L93 Difference]: Finished difference Result 1543 states and 2083 transitions. [2020-07-21 13:52:53,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:52:53,130 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2020-07-21 13:52:53,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:53,135 INFO L225 Difference]: With dead ends: 1543 [2020-07-21 13:52:53,136 INFO L226 Difference]: Without dead ends: 921 [2020-07-21 13:52:53,138 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 144 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 13:52:53,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2020-07-21 13:52:53,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 919. [2020-07-21 13:52:53,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 919 states. [2020-07-21 13:52:53,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1209 transitions. [2020-07-21 13:52:53,173 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1209 transitions. Word has length 146 [2020-07-21 13:52:53,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:53,174 INFO L479 AbstractCegarLoop]: Abstraction has 919 states and 1209 transitions. [2020-07-21 13:52:53,174 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:52:53,174 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1209 transitions. [2020-07-21 13:52:53,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-07-21 13:52:53,179 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:53,179 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:52:53,392 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:53,393 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:53,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:53,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1262915279, now seen corresponding path program 1 times [2020-07-21 13:52:53,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:53,395 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [469787296] [2020-07-21 13:52:53,396 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 13:52:53,502 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:53,502 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:53,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 13:52:53,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:53,554 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-21 13:52:53,555 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:52:53,555 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [469787296] [2020-07-21 13:52:53,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:52:53,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 13:52:53,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449241794] [2020-07-21 13:52:53,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:52:53,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:53,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:52:53,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:52:53,558 INFO L87 Difference]: Start difference. First operand 919 states and 1209 transitions. Second operand 5 states. [2020-07-21 13:52:54,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:54,452 INFO L93 Difference]: Finished difference Result 2770 states and 3826 transitions. [2020-07-21 13:52:54,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 13:52:54,454 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 152 [2020-07-21 13:52:54,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:54,479 INFO L225 Difference]: With dead ends: 2770 [2020-07-21 13:52:54,480 INFO L226 Difference]: Without dead ends: 1857 [2020-07-21 13:52:54,484 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:52:54,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1857 states. [2020-07-21 13:52:54,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1857 to 1829. [2020-07-21 13:52:54,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1829 states. [2020-07-21 13:52:54,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1829 states to 1829 states and 2367 transitions. [2020-07-21 13:52:54,585 INFO L78 Accepts]: Start accepts. Automaton has 1829 states and 2367 transitions. Word has length 152 [2020-07-21 13:52:54,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:54,586 INFO L479 AbstractCegarLoop]: Abstraction has 1829 states and 2367 transitions. [2020-07-21 13:52:54,586 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:52:54,586 INFO L276 IsEmpty]: Start isEmpty. Operand 1829 states and 2367 transitions. [2020-07-21 13:52:54,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-07-21 13:52:54,595 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:54,596 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:52:54,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:54,812 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:54,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:54,813 INFO L82 PathProgramCache]: Analyzing trace with hash -989124760, now seen corresponding path program 1 times [2020-07-21 13:52:54,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:54,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [831847928] [2020-07-21 13:52:54,814 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 13:52:54,932 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:54,933 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:54,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:54,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:54,977 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:52:54,978 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:55,041 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:52:55,041 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [831847928] [2020-07-21 13:52:55,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:52:55,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 13:52:55,042 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74369991] [2020-07-21 13:52:55,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 13:52:55,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:55,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 13:52:55,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:52:55,043 INFO L87 Difference]: Start difference. First operand 1829 states and 2367 transitions. Second operand 6 states. [2020-07-21 13:52:56,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:56,082 INFO L93 Difference]: Finished difference Result 4140 states and 5483 transitions. [2020-07-21 13:52:56,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:52:56,083 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 160 [2020-07-21 13:52:56,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:56,098 INFO L225 Difference]: With dead ends: 4140 [2020-07-21 13:52:56,098 INFO L226 Difference]: Without dead ends: 2317 [2020-07-21 13:52:56,103 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 314 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 13:52:56,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2317 states. [2020-07-21 13:52:56,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2317 to 2305. [2020-07-21 13:52:56,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2305 states. [2020-07-21 13:52:56,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2305 states to 2305 states and 3033 transitions. [2020-07-21 13:52:56,177 INFO L78 Accepts]: Start accepts. Automaton has 2305 states and 3033 transitions. Word has length 160 [2020-07-21 13:52:56,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:56,177 INFO L479 AbstractCegarLoop]: Abstraction has 2305 states and 3033 transitions. [2020-07-21 13:52:56,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 13:52:56,178 INFO L276 IsEmpty]: Start isEmpty. Operand 2305 states and 3033 transitions. [2020-07-21 13:52:56,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-07-21 13:52:56,186 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:56,186 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] [2020-07-21 13:52:56,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:56,402 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:56,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:56,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1429632528, now seen corresponding path program 1 times [2020-07-21 13:52:56,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:56,403 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [437792085] [2020-07-21 13:52:56,404 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 13:52:56,524 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:56,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:56,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:56,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:56,570 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 13:52:56,570 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:52:56,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [437792085] [2020-07-21 13:52:56,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:52:56,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:52:56,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081865423] [2020-07-21 13:52:56,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:52:56,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:56,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:52:56,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:52:56,573 INFO L87 Difference]: Start difference. First operand 2305 states and 3033 transitions. Second operand 3 states. [2020-07-21 13:52:57,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:57,252 INFO L93 Difference]: Finished difference Result 5910 states and 7904 transitions. [2020-07-21 13:52:57,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:52:57,252 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2020-07-21 13:52:57,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:57,266 INFO L225 Difference]: With dead ends: 5910 [2020-07-21 13:52:57,267 INFO L226 Difference]: Without dead ends: 2285 [2020-07-21 13:52:57,284 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:52:57,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2285 states. [2020-07-21 13:52:57,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2285 to 2285. [2020-07-21 13:52:57,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2285 states. [2020-07-21 13:52:57,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2285 states to 2285 states and 2909 transitions. [2020-07-21 13:52:57,372 INFO L78 Accepts]: Start accepts. Automaton has 2285 states and 2909 transitions. Word has length 164 [2020-07-21 13:52:57,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:57,373 INFO L479 AbstractCegarLoop]: Abstraction has 2285 states and 2909 transitions. [2020-07-21 13:52:57,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:52:57,373 INFO L276 IsEmpty]: Start isEmpty. Operand 2285 states and 2909 transitions. [2020-07-21 13:52:57,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-07-21 13:52:57,382 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:57,383 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 13:52:57,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:57,597 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:57,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:57,597 INFO L82 PathProgramCache]: Analyzing trace with hash 637450697, now seen corresponding path program 1 times [2020-07-21 13:52:57,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:57,598 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [651638074] [2020-07-21 13:52:57,598 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 13:52:57,716 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:57,716 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:57,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:57,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:57,765 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 62 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 13:52:57,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:57,856 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 62 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 13:52:57,857 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [651638074] [2020-07-21 13:52:57,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:52:57,857 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 13:52:57,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825030103] [2020-07-21 13:52:57,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 13:52:57,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:57,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 13:52:57,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:52:57,859 INFO L87 Difference]: Start difference. First operand 2285 states and 2909 transitions. Second operand 6 states. [2020-07-21 13:52:58,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:58,889 INFO L93 Difference]: Finished difference Result 5192 states and 6717 transitions. [2020-07-21 13:52:58,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 13:52:58,889 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 182 [2020-07-21 13:52:58,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:58,905 INFO L225 Difference]: With dead ends: 5192 [2020-07-21 13:52:58,906 INFO L226 Difference]: Without dead ends: 2913 [2020-07-21 13:52:58,913 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 360 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 13:52:58,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2913 states. [2020-07-21 13:52:58,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2913 to 2899. [2020-07-21 13:52:58,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2899 states. [2020-07-21 13:52:58,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2899 states to 2899 states and 3504 transitions. [2020-07-21 13:52:58,995 INFO L78 Accepts]: Start accepts. Automaton has 2899 states and 3504 transitions. Word has length 182 [2020-07-21 13:52:58,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:58,996 INFO L479 AbstractCegarLoop]: Abstraction has 2899 states and 3504 transitions. [2020-07-21 13:52:58,997 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 13:52:58,997 INFO L276 IsEmpty]: Start isEmpty. Operand 2899 states and 3504 transitions. [2020-07-21 13:52:59,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-07-21 13:52:59,007 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:59,007 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:52:59,221 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:59,222 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:59,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:59,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1052030863, now seen corresponding path program 1 times [2020-07-21 13:52:59,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:59,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [75661223] [2020-07-21 13:52:59,224 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 13:52:59,366 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:59,367 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:59,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:59,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:59,481 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 148 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-07-21 13:52:59,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:59,582 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 148 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-07-21 13:52:59,582 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [75661223] [2020-07-21 13:52:59,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:52:59,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 13:52:59,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387758120] [2020-07-21 13:52:59,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 13:52:59,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:59,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 13:52:59,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:52:59,584 INFO L87 Difference]: Start difference. First operand 2899 states and 3504 transitions. Second operand 7 states. [2020-07-21 13:53:00,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:53:00,582 INFO L93 Difference]: Finished difference Result 7468 states and 9061 transitions. [2020-07-21 13:53:00,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:53:00,585 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 227 [2020-07-21 13:53:00,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:53:00,610 INFO L225 Difference]: With dead ends: 7468 [2020-07-21 13:53:00,610 INFO L226 Difference]: Without dead ends: 4574 [2020-07-21 13:53:00,620 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 449 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 13:53:00,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4574 states. [2020-07-21 13:53:00,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4574 to 4541. [2020-07-21 13:53:00,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4541 states. [2020-07-21 13:53:00,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4541 states to 4541 states and 5450 transitions. [2020-07-21 13:53:00,750 INFO L78 Accepts]: Start accepts. Automaton has 4541 states and 5450 transitions. Word has length 227 [2020-07-21 13:53:00,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:53:00,750 INFO L479 AbstractCegarLoop]: Abstraction has 4541 states and 5450 transitions. [2020-07-21 13:53:00,750 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 13:53:00,750 INFO L276 IsEmpty]: Start isEmpty. Operand 4541 states and 5450 transitions. [2020-07-21 13:53:00,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-07-21 13:53:00,770 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:53:00,770 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 13:53:00,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:53:00,984 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:53:00,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:53:00,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1880332291, now seen corresponding path program 1 times [2020-07-21 13:53:00,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:53:00,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1373946442] [2020-07-21 13:53:00,986 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 13:53:01,167 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:53:01,168 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:53:01,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:53:01,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:53:01,234 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-07-21 13:53:01,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:53:01,329 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 114 proven. 36 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-21 13:53:01,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1373946442] [2020-07-21 13:53:01,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:53:01,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 13:53:01,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416240266] [2020-07-21 13:53:01,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 13:53:01,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:53:01,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 13:53:01,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:53:01,337 INFO L87 Difference]: Start difference. First operand 4541 states and 5450 transitions. Second operand 6 states. [2020-07-21 13:53:01,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:53:01,978 INFO L93 Difference]: Finished difference Result 8756 states and 10503 transitions. [2020-07-21 13:53:01,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 13:53:01,979 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 229 [2020-07-21 13:53:01,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:53:02,002 INFO L225 Difference]: With dead ends: 8756 [2020-07-21 13:53:02,002 INFO L226 Difference]: Without dead ends: 4221 [2020-07-21 13:53:02,016 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 452 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:53:02,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4221 states. [2020-07-21 13:53:02,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4221 to 4217. [2020-07-21 13:53:02,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4217 states. [2020-07-21 13:53:02,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4217 states to 4217 states and 4895 transitions. [2020-07-21 13:53:02,158 INFO L78 Accepts]: Start accepts. Automaton has 4217 states and 4895 transitions. Word has length 229 [2020-07-21 13:53:02,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:53:02,159 INFO L479 AbstractCegarLoop]: Abstraction has 4217 states and 4895 transitions. [2020-07-21 13:53:02,159 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 13:53:02,159 INFO L276 IsEmpty]: Start isEmpty. Operand 4217 states and 4895 transitions. [2020-07-21 13:53:02,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-07-21 13:53:02,174 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:53:02,176 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:53:02,389 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:53:02,390 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:53:02,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:53:02,391 INFO L82 PathProgramCache]: Analyzing trace with hash -1522903008, now seen corresponding path program 1 times [2020-07-21 13:53:02,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:53:02,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2074594911] [2020-07-21 13:53:02,393 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 13:53:02,655 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:53:02,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:53:02,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:53:02,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:53:02,733 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 207 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-07-21 13:53:02,733 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:53:02,852 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 172 proven. 36 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-07-21 13:53:02,853 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2074594911] [2020-07-21 13:53:02,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:53:02,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 13:53:02,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797073934] [2020-07-21 13:53:02,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 13:53:02,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:53:02,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 13:53:02,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:53:02,856 INFO L87 Difference]: Start difference. First operand 4217 states and 4895 transitions. Second operand 7 states. [2020-07-21 13:53:04,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:53:04,279 INFO L93 Difference]: Finished difference Result 9866 states and 11437 transitions. [2020-07-21 13:53:04,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:53:04,279 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 263 [2020-07-21 13:53:04,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:53:04,304 INFO L225 Difference]: With dead ends: 9866 [2020-07-21 13:53:04,304 INFO L226 Difference]: Without dead ends: 5799 [2020-07-21 13:53:04,316 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 521 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 13:53:04,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5799 states. [2020-07-21 13:53:04,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5799 to 5505. [2020-07-21 13:53:04,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5505 states. [2020-07-21 13:53:04,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5505 states to 5505 states and 6167 transitions. [2020-07-21 13:53:04,440 INFO L78 Accepts]: Start accepts. Automaton has 5505 states and 6167 transitions. Word has length 263 [2020-07-21 13:53:04,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:53:04,440 INFO L479 AbstractCegarLoop]: Abstraction has 5505 states and 6167 transitions. [2020-07-21 13:53:04,440 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 13:53:04,441 INFO L276 IsEmpty]: Start isEmpty. Operand 5505 states and 6167 transitions. [2020-07-21 13:53:04,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-07-21 13:53:04,456 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:53:04,456 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:53:04,669 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:53:04,670 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:53:04,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:53:04,671 INFO L82 PathProgramCache]: Analyzing trace with hash -834923932, now seen corresponding path program 1 times [2020-07-21 13:53:04,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:53:04,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1538782004] [2020-07-21 13:53:04,672 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 13:53:04,827 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:53:04,828 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:53:04,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 13:53:04,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:53:04,894 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 166 proven. 2 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2020-07-21 13:53:04,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:53:05,081 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 174 proven. 80 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2020-07-21 13:53:05,081 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1538782004] [2020-07-21 13:53:05,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:53:05,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 13:53:05,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980035807] [2020-07-21 13:53:05,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 13:53:05,083 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:53:05,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 13:53:05,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:53:05,084 INFO L87 Difference]: Start difference. First operand 5505 states and 6167 transitions. Second operand 7 states. [2020-07-21 13:53:06,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:53:06,342 INFO L93 Difference]: Finished difference Result 10254 states and 11467 transitions. [2020-07-21 13:53:06,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 13:53:06,343 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 295 [2020-07-21 13:53:06,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:53:06,344 INFO L225 Difference]: With dead ends: 10254 [2020-07-21 13:53:06,344 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 13:53:06,362 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 593 GetRequests, 586 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 13:53:06,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 13:53:06,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 13:53:06,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 13:53:06,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 13:53:06,363 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 295 [2020-07-21 13:53:06,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:53:06,363 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 13:53:06,363 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 13:53:06,363 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 13:53:06,364 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 13:53:06,576 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:53:06,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 13:53:07,064 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 83 [2020-07-21 13:53:08,531 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 155 DAG size of output: 75 [2020-07-21 13:53:09,126 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 52 [2020-07-21 13:53:09,694 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 52 [2020-07-21 13:53:09,698 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:53:09,698 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (or (<= ~a11~0 0) (< 0 |old(~a11~0)|)) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 13:53:09,698 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:53:09,698 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,698 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,699 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,699 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,699 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,699 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 13:53:09,699 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 13:53:09,699 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 13:53:09,699 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 13:53:09,700 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 13:53:09,700 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 13:53:09,700 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 13:53:09,700 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 13:53:09,700 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 13:53:09,700 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 13:53:09,701 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 13:53:09,701 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 13:53:09,701 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 13:53:09,701 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,701 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,701 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,701 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,701 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 13:53:09,701 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,701 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 13:53:09,702 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 13:53:09,702 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 13:53:09,702 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 13:53:09,702 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 13:53:09,702 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 13:53:09,702 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 13:53:09,702 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 13:53:09,702 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 13:53:09,702 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 13:53:09,703 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 13:53:09,703 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 13:53:09,703 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 13:53:09,703 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 13:53:09,703 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 13:53:09,703 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,705 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,705 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,705 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,705 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,706 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 541) no Hoare annotation was computed. [2020-07-21 13:53:09,706 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 13:53:09,706 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 13:53:09,706 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 13:53:09,706 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 13:53:09,706 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 13:53:09,706 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 13:53:09,706 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 13:53:09,707 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 13:53:09,707 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 13:53:09,707 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 13:53:09,707 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 13:53:09,707 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,707 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,707 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,707 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,707 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,708 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 13:53:09,708 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 13:53:09,708 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 13:53:09,708 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 13:53:09,708 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 13:53:09,708 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 13:53:09,708 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 13:53:09,708 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 13:53:09,708 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 13:53:09,709 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 13:53:09,709 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 13:53:09,709 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 13:53:09,710 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 13:53:09,710 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,710 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,710 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,710 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,710 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,711 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 13:53:09,711 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 13:53:09,711 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 13:53:09,711 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 13:53:09,711 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 13:53:09,711 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 13:53:09,711 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 13:53:09,711 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 13:53:09,711 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 13:53:09,711 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 13:53:09,711 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 13:53:09,711 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 13:53:09,711 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 13:53:09,712 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 13:53:09,712 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 13:53:09,712 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 13:53:09,712 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,712 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,712 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,712 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,712 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 13:53:09,712 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,712 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 13:53:09,712 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,713 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 13:53:09,713 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 13:53:09,713 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 13:53:09,713 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,714 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,714 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 13:53:09,714 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 13:53:09,714 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 13:53:09,714 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 13:53:09,714 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 13:53:09,714 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 13:53:09,715 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 13:53:09,715 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 13:53:09,715 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 13:53:09,715 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 13:53:09,715 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 13:53:09,715 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,715 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,715 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,716 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,716 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,716 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,716 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 13:53:09,716 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 13:53:09,716 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 13:53:09,716 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 13:53:09,716 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 13:53:09,716 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 13:53:09,717 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 13:53:09,717 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 13:53:09,717 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 13:53:09,717 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 13:53:09,717 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 13:53:09,717 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,717 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,717 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,717 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,718 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,718 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,718 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 13:53:09,718 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 13:53:09,718 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 13:53:09,718 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 13:53:09,718 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 13:53:09,718 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 13:53:09,718 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 13:53:09,719 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 13:53:09,719 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 13:53:09,719 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 13:53:09,719 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 13:53:09,719 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 13:53:09,719 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 13:53:09,719 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 13:53:09,719 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,719 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,720 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,720 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse10 (<= ~a17~0 |old(~a17~0)|)) (.cse12 (<= ~a28~0 |old(~a28~0)|)) (.cse13 (= ~a19~0 |old(~a19~0)|)) (.cse14 (<= |old(~a28~0)| ~a28~0)) (.cse22 (= 1 ~a25~0)) (.cse11 (<= ~a11~0 0))) (let ((.cse18 (<= ~a28~0 10)) (.cse19 (<= ~a17~0 7)) (.cse17 (or .cse11 (< 0 |old(~a11~0)|))) (.cse15 (= ~a25~0 |old(~a25~0)|)) (.cse1 (and .cse10 .cse11 .cse12 .cse13 .cse14 .cse22)) (.cse8 (not (<= |old(~a28~0)| 7))) (.cse16 (not (<= |old(~a17~0)| 7))) (.cse20 (not (<= |old(~a28~0)| 9))) (.cse9 (not (<= |old(~a25~0)| 0))) (.cse4 (not (<= |old(~a19~0)| 0))) (.cse6 (not (<= |old(~a11~0)| 0))) (.cse7 (not (= 1 |old(~a19~0)|))) (.cse0 (not (<= |old(~a28~0)| 10))) (.cse2 (not (<= 9 |old(~a28~0)|))) (.cse3 (not (= 1 |old(~a25~0)|))) (.cse21 (and .cse10 .cse12 .cse13 .cse14 .cse22)) (.cse5 (not (<= |old(~a17~0)| 8)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (or .cse7 .cse8 .cse9 (and .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) .cse5 .cse6) (or .cse0 .cse16 (and .cse17 .cse18 .cse19 .cse13)) (or .cse12 .cse20 .cse16) (or .cse7 .cse0 .cse2 .cse9 (and .cse10 .cse18 .cse13 .cse14 .cse15) .cse5) (or .cse20 .cse9 (and .cse10 .cse12 .cse13 .cse14 .cse15) .cse4 .cse5) (or .cse7 .cse0 .cse11 .cse2 .cse9 .cse5 .cse6) (or .cse7 .cse16 (and .cse12 .cse19 .cse13)) (or .cse8 (and .cse10 .cse12 .cse17 .cse13 .cse14 .cse15) .cse4 .cse5) (or .cse7 .cse2 .cse20 .cse9 (<= ~a28~0 9) .cse5) (or .cse7 .cse1 .cse3 .cse5 .cse6) (or .cse7 .cse8 .cse3 .cse21 .cse5) (or .cse7 .cse11 .cse16 .cse6) (or .cse11 .cse20 .cse9 .cse4 .cse5 .cse6) (or .cse7 .cse0 .cse2 .cse3 .cse21 .cse5)))) [2020-07-21 13:53:09,720 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,720 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,720 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,720 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 13:53:09,721 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 13:53:09,721 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 13:53:09,721 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 13:53:09,721 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 13:53:09,721 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 13:53:09,721 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 13:53:09,721 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 13:53:09,721 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 13:53:09,721 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 13:53:09,722 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 13:53:09,722 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 13:53:09,723 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 13:53:09,723 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,723 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,723 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,723 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,723 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,723 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,723 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 13:53:09,723 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 13:53:09,724 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 13:53:09,724 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 13:53:09,724 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 13:53:09,724 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 13:53:09,724 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 13:53:09,724 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 13:53:09,724 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 13:53:09,724 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 13:53:09,725 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 13:53:09,725 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 13:53:09,725 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 13:53:09,725 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 13:53:09,725 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 13:53:09,725 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 13:53:09,725 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,725 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,725 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,726 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,726 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:09,726 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 13:53:09,726 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 13:53:09,726 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 13:53:09,726 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 13:53:09,726 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 13:53:09,726 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 13:53:09,726 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 13:53:09,727 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 13:53:09,727 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 13:53:09,727 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 13:53:09,727 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 13:53:09,727 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 13:53:09,727 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 13:53:09,727 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 13:53:09,727 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 13:53:09,727 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 13:53:09,728 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 13:53:09,728 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 13:53:09,728 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 13:53:09,728 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:53:09,728 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= ~a25~0 0) (<= ~a28~0 7)) [2020-07-21 13:53:09,728 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 13:53:09,728 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:53:09,728 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a25~0)| 0)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0))) [2020-07-21 13:53:09,729 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse9 (<= ~a25~0 0)) (.cse1 (<= ~a19~0 0)) (.cse4 (<= ~a17~0 7)) (.cse7 (<= ~a28~0 10)) (.cse8 (<= 1 ~a19~0)) (.cse10 (<= ~a19~0 |old(~a19~0)|)) (.cse11 (<= 9 ~a28~0)) (.cse5 (= 1 ~a25~0)) (.cse3 (= 1 ~a19~0)) (.cse0 (<= ~a17~0 |old(~a17~0)|)) (.cse6 (<= ~a11~0 0)) (.cse2 (<= ~a28~0 7))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2) (not (<= |old(~a28~0)| 7)) (and .cse3 .cse4) (and .cse3 .cse0 .cse2 .cse5) (and .cse3 .cse0 .cse6 .cse5) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 (<= ~a28~0 9) .cse9 .cse1) (and .cse0 .cse6 .cse7 .cse1 .cse11 .cse5) (not (<= |old(~a25~0)| 0)) (and .cse7 .cse4) (not (<= |old(~a17~0)| 8)) (and .cse0 .cse7 .cse8 .cse10 .cse11 .cse5) (and .cse3 .cse0 .cse6 .cse2 (= ~a25~0 |old(~a25~0)|)))) [2020-07-21 13:53:09,729 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 13:53:09,729 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 13:53:09,729 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse9 (<= ~a25~0 0)) (.cse1 (<= ~a19~0 0)) (.cse4 (<= ~a17~0 7)) (.cse7 (<= ~a28~0 10)) (.cse8 (<= 1 ~a19~0)) (.cse10 (<= ~a19~0 |old(~a19~0)|)) (.cse11 (<= 9 ~a28~0)) (.cse5 (= 1 ~a25~0)) (.cse3 (= 1 ~a19~0)) (.cse0 (<= ~a17~0 |old(~a17~0)|)) (.cse6 (<= ~a11~0 0)) (.cse2 (<= ~a28~0 7))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2) (not (<= |old(~a28~0)| 7)) (and .cse3 .cse4) (and .cse3 .cse0 .cse2 .cse5) (and .cse3 .cse0 .cse6 .cse5) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 (<= ~a28~0 9) .cse9 .cse1) (and .cse0 .cse6 .cse7 .cse1 .cse11 .cse5) (not (<= |old(~a25~0)| 0)) (and .cse7 .cse4) (not (<= |old(~a17~0)| 8)) (and .cse0 .cse7 .cse8 .cse10 .cse11 .cse5) (and .cse3 .cse0 .cse6 .cse2 (= ~a25~0 |old(~a25~0)|)))) [2020-07-21 13:53:09,729 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 13:53:09,730 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 13:53:09,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:53:09 BoogieIcfgContainer [2020-07-21 13:53:09,767 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 13:53:09,769 INFO L168 Benchmark]: Toolchain (without parser) took 22743.54 ms. Allocated memory was 138.4 MB in the beginning and 578.8 MB in the end (delta: 440.4 MB). Free memory was 102.1 MB in the beginning and 238.5 MB in the end (delta: -136.4 MB). Peak memory consumption was 472.2 MB. Max. memory is 7.1 GB. [2020-07-21 13:53:09,769 INFO L168 Benchmark]: CDTParser took 0.59 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-21 13:53:09,770 INFO L168 Benchmark]: CACSL2BoogieTranslator took 753.43 ms. Allocated memory was 138.4 MB in the beginning and 205.0 MB in the end (delta: 66.6 MB). Free memory was 101.6 MB in the beginning and 173.0 MB in the end (delta: -71.4 MB). Peak memory consumption was 37.7 MB. Max. memory is 7.1 GB. [2020-07-21 13:53:09,771 INFO L168 Benchmark]: Boogie Preprocessor took 117.11 ms. Allocated memory is still 205.0 MB. Free memory was 173.0 MB in the beginning and 168.1 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-21 13:53:09,771 INFO L168 Benchmark]: RCFGBuilder took 1310.16 ms. Allocated memory was 205.0 MB in the beginning and 238.0 MB in the end (delta: 33.0 MB). Free memory was 168.1 MB in the beginning and 183.8 MB in the end (delta: -15.7 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. [2020-07-21 13:53:09,772 INFO L168 Benchmark]: TraceAbstraction took 20553.38 ms. Allocated memory was 238.0 MB in the beginning and 578.8 MB in the end (delta: 340.8 MB). Free memory was 183.8 MB in the beginning and 238.5 MB in the end (delta: -54.7 MB). Peak memory consumption was 454.3 MB. Max. memory is 7.1 GB. [2020-07-21 13:53:09,775 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 753.43 ms. Allocated memory was 138.4 MB in the beginning and 205.0 MB in the end (delta: 66.6 MB). Free memory was 101.6 MB in the beginning and 173.0 MB in the end (delta: -71.4 MB). Peak memory consumption was 37.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.11 ms. Allocated memory is still 205.0 MB. Free memory was 173.0 MB in the beginning and 168.1 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1310.16 ms. Allocated memory was 205.0 MB in the beginning and 238.0 MB in the end (delta: 33.0 MB). Free memory was 168.1 MB in the beginning and 183.8 MB in the end (delta: -15.7 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20553.38 ms. Allocated memory was 238.0 MB in the beginning and 578.8 MB in the end (delta: 340.8 MB). Free memory was 183.8 MB in the beginning and 238.5 MB in the end (delta: -54.7 MB). Peak memory consumption was 454.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 541]: 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)) || ((a17 <= \old(a17) && a19 <= 0) && a28 <= 7)) || !(\old(a28) <= 7)) || (1 == a19 && a17 <= 7)) || (((1 == a19 && a17 <= \old(a17)) && a28 <= 7) && 1 == a25)) || (((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && 1 == a25)) || !(\old(a11) <= 0)) || (((((a17 <= \old(a17) && a28 <= 10) && 1 <= a19) && a25 <= 0) && a19 <= \old(a19)) && 9 <= a28)) || (((a17 <= \old(a17) && a28 <= 9) && a25 <= 0) && a19 <= 0)) || (((((a17 <= \old(a17) && a11 <= 0) && a28 <= 10) && a19 <= 0) && 9 <= a28) && 1 == a25)) || !(\old(a25) <= 0)) || (a28 <= 10 && a17 <= 7)) || !(\old(a17) <= 8)) || (((((a17 <= \old(a17) && a28 <= 10) && 1 <= a19) && a19 <= \old(a19)) && 9 <= a28) && 1 == a25)) || ((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && a28 <= 7) && a25 == \old(a25)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.2s, OverallIterations: 11, TraceHistogramMax: 6, AutomataDifference: 10.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 925 SDtfs, 4512 SDslu, 656 SDs, 0 SdLazy, 7632 SolverSat, 1211 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3593 GetRequests, 3531 SyntacticMatches, 12 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5505occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 11 MinimizatonAttempts, 389 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 215 PreInvPairs, 299 NumberOfFragments, 840 HoareAnnotationTreeSize, 215 FomulaSimplifications, 3018 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4266 FormulaSimplificationTreeSizeReductionInter, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 2085 NumberOfCodeBlocks, 2085 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 3561 ConstructedInterpolants, 0 QuantifiedInterpolants, 1358761 SizeOfPredicates, 13 NumberOfNonLiveVariables, 5166 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 18 InterpolantComputations, 5 PerfectInterpolantSequences, 2122/2295 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...