/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label44.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 20:12:32,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 20:12:32,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 20:12:32,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-21 20:12:32,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 20:12:32,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 20:12:32,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 20:12:32,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 20:12:32,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 20:12:32,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 20:12:32,840 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 20:12:32,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 20:12:32,844 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 20:12:32,845 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 20:12:32,846 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 20:12:32,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 20:12:32,849 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 20:12:32,863 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 20:12:32,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 20:12:32,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 20:12:32,867 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 20:12:32,890 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 20:12:32,890 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 20:12:32,892 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 20:12:32,892 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 20:12:32,892 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 20:12:32,893 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 20:12:32,893 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 20:12:32,893 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 20:12:32,893 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 20:12:32,893 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 20:12:32,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 20:12:32,894 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 20:12:32,895 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 20:12:32,895 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 20:12:32,895 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 20:12:32,895 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 20:12:32,896 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 20:12:32,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 20:12:32,896 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 20:12:32,896 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 20:12:32,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 20:12:32,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:12:32,897 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 20:12:32,897 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 20:12:32,897 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 20:12:32,897 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 20:12:32,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:12:32,898 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 20:12:32,898 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 20:12:32,898 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 20:12:33,182 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 20:12:33,194 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 20:12:33,197 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 20:12:33,198 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 20:12:33,199 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 20:12:33,199 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label44.c [2020-07-21 20:12:33,278 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/670bf72a8/b960149635ab4d31bb3cc2b6376b43db/FLAG3942def97 [2020-07-21 20:12:33,838 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 20:12:33,839 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label44.c [2020-07-21 20:12:33,863 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/670bf72a8/b960149635ab4d31bb3cc2b6376b43db/FLAG3942def97 [2020-07-21 20:12:34,112 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/670bf72a8/b960149635ab4d31bb3cc2b6376b43db [2020-07-21 20:12:34,120 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 20:12:34,124 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 20:12:34,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 20:12:34,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 20:12:34,128 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 20:12:34,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:12:34" (1/1) ... [2020-07-21 20:12:34,134 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b2290a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:34, skipping insertion in model container [2020-07-21 20:12:34,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:12:34" (1/1) ... [2020-07-21 20:12:34,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 20:12:34,195 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 20:12:34,646 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:12:34,651 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 20:12:34,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:12:34,886 INFO L208 MainTranslator]: Completed translation [2020-07-21 20:12:34,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:34 WrapperNode [2020-07-21 20:12:34,887 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 20:12:34,888 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 20:12:34,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 20:12:34,888 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 20:12:34,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:34" (1/1) ... [2020-07-21 20:12:34,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:34" (1/1) ... [2020-07-21 20:12:34,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:34" (1/1) ... [2020-07-21 20:12:34,931 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:34" (1/1) ... [2020-07-21 20:12:34,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:34" (1/1) ... [2020-07-21 20:12:34,985 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:34" (1/1) ... [2020-07-21 20:12:34,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:34" (1/1) ... [2020-07-21 20:12:35,001 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 20:12:35,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 20:12:35,002 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 20:12:35,002 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 20:12:35,003 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:34" (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 20:12:35,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 20:12:35,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 20:12:35,075 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 20:12:35,075 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 20:12:35,076 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 20:12:35,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 20:12:35,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 20:12:35,076 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 20:12:35,076 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 20:12:35,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 20:12:35,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 20:12:36,396 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 20:12:36,397 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 20:12:36,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:12:36 BoogieIcfgContainer [2020-07-21 20:12:36,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 20:12:36,410 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 20:12:36,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 20:12:36,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 20:12:36,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:12:34" (1/3) ... [2020-07-21 20:12:36,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@741bf614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:12:36, skipping insertion in model container [2020-07-21 20:12:36,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:12:34" (2/3) ... [2020-07-21 20:12:36,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@741bf614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:12:36, skipping insertion in model container [2020-07-21 20:12:36,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:12:36" (3/3) ... [2020-07-21 20:12:36,425 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label44.c [2020-07-21 20:12:36,437 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 20:12:36,448 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 20:12:36,462 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 20:12:36,496 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 20:12:36,497 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 20:12:36,497 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 20:12:36,497 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 20:12:36,497 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 20:12:36,498 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 20:12:36,498 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 20:12:36,498 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 20:12:36,528 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-21 20:12:36,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-21 20:12:36,546 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:12:36,547 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] [2020-07-21 20:12:36,548 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:12:36,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:12:36,557 INFO L82 PathProgramCache]: Analyzing trace with hash 745509942, now seen corresponding path program 1 times [2020-07-21 20:12:36,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:12:36,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1857369321] [2020-07-21 20:12:36,570 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 20:12:36,751 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:12:36,751 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:12:36,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:12:36,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:12:36,872 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 20:12:36,872 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:12:36,874 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1857369321] [2020-07-21 20:12:36,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:12:36,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:12:36,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891390153] [2020-07-21 20:12:36,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:12:36,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:12:36,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:12:36,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:12:36,898 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-21 20:12:37,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:12:37,904 INFO L93 Difference]: Finished difference Result 571 states and 989 transitions. [2020-07-21 20:12:37,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:12:37,906 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-07-21 20:12:37,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:12:37,928 INFO L225 Difference]: With dead ends: 571 [2020-07-21 20:12:37,928 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 20:12:37,941 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 61 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 20:12:37,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 20:12:38,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-21 20:12:38,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 20:12:38,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 391 transitions. [2020-07-21 20:12:38,057 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 391 transitions. Word has length 63 [2020-07-21 20:12:38,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:12:38,057 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 391 transitions. [2020-07-21 20:12:38,058 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:12:38,058 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 391 transitions. [2020-07-21 20:12:38,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-21 20:12:38,063 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:12:38,064 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 20:12:38,277 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:12:38,277 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:12:38,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:12:38,279 INFO L82 PathProgramCache]: Analyzing trace with hash -825362990, now seen corresponding path program 1 times [2020-07-21 20:12:38,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:12:38,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1984142300] [2020-07-21 20:12:38,280 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 20:12:38,395 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:12:38,396 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:12:38,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:12:38,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:12:38,468 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:12:38,468 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:12:38,469 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1984142300] [2020-07-21 20:12:38,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:12:38,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:12:38,470 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252636125] [2020-07-21 20:12:38,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:12:38,473 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:12:38,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:12:38,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:12:38,474 INFO L87 Difference]: Start difference. First operand 294 states and 391 transitions. Second operand 3 states. [2020-07-21 20:12:39,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:12:39,205 INFO L93 Difference]: Finished difference Result 725 states and 1001 transitions. [2020-07-21 20:12:39,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:12:39,206 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-07-21 20:12:39,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:12:39,211 INFO L225 Difference]: With dead ends: 725 [2020-07-21 20:12:39,211 INFO L226 Difference]: Without dead ends: 437 [2020-07-21 20:12:39,213 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 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 20:12:39,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2020-07-21 20:12:39,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2020-07-21 20:12:39,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-07-21 20:12:39,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 568 transitions. [2020-07-21 20:12:39,236 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 568 transitions. Word has length 133 [2020-07-21 20:12:39,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:12:39,237 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 568 transitions. [2020-07-21 20:12:39,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:12:39,237 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 568 transitions. [2020-07-21 20:12:39,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-21 20:12:39,240 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:12:39,240 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 20:12:39,454 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:12:39,455 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:12:39,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:12:39,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1901765607, now seen corresponding path program 1 times [2020-07-21 20:12:39,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:12:39,456 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [640396495] [2020-07-21 20:12:39,456 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 20:12:39,545 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:12:39,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:12:39,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 20:12:39,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:12:39,582 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:12:39,583 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 20:12:44,732 WARN L193 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 25 [2020-07-21 20:12:46,803 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 20:12:47,117 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 3 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:12:47,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:12:47,181 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:12:47,182 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 20:12:47,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [640396495] [2020-07-21 20:12:47,231 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-21 20:12:47,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-07-21 20:12:47,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138801862] [2020-07-21 20:12:47,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:12:47,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:12:47,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:12:47,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=36, Unknown=1, NotChecked=0, Total=56 [2020-07-21 20:12:47,233 INFO L87 Difference]: Start difference. First operand 437 states and 568 transitions. Second operand 6 states. [2020-07-21 20:14:47,652 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 24 [2020-07-21 20:19:34,483 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 23 [2020-07-21 20:19:53,733 WARN L193 SmtUtils]: Spent 2.50 s on a formula simplification that was a NOOP. DAG size: 29 [2020-07-21 20:22:52,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:22:52,052 INFO L93 Difference]: Finished difference Result 1780 states and 2428 transitions. [2020-07-21 20:22:52,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 20:22:52,062 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2020-07-21 20:22:52,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:22:52,080 INFO L225 Difference]: With dead ends: 1780 [2020-07-21 20:22:52,080 INFO L226 Difference]: Without dead ends: 1349 [2020-07-21 20:22:52,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 193 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=58, Invalid=95, Unknown=3, NotChecked=0, Total=156 [2020-07-21 20:22:52,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1349 states. [2020-07-21 20:22:52,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1349 to 1319. [2020-07-21 20:22:52,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1319 states. [2020-07-21 20:22:52,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1696 transitions. [2020-07-21 20:22:52,207 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1696 transitions. Word has length 142 [2020-07-21 20:22:52,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:22:52,209 INFO L479 AbstractCegarLoop]: Abstraction has 1319 states and 1696 transitions. [2020-07-21 20:22:52,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:22:52,209 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1696 transitions. [2020-07-21 20:22:52,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-07-21 20:22:52,224 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:22:52,225 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 20:22:52,425 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:22:52,426 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:22:52,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:22:52,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1171294982, now seen corresponding path program 1 times [2020-07-21 20:22:52,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:22:52,427 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1874069888] [2020-07-21 20:22:52,427 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 20:22:52,530 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:22:52,530 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:22:52,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:22:52,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:22:52,606 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:22:52,607 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:22:52,607 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1874069888] [2020-07-21 20:22:52,607 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:22:52,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:22:52,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044336145] [2020-07-21 20:22:52,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:22:52,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:22:52,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:22:52,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:22:52,610 INFO L87 Difference]: Start difference. First operand 1319 states and 1696 transitions. Second operand 3 states. [2020-07-21 20:22:57,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:22:57,108 INFO L93 Difference]: Finished difference Result 3355 states and 4414 transitions. [2020-07-21 20:22:57,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:22:57,123 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 185 [2020-07-21 20:22:57,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:22:57,132 INFO L225 Difference]: With dead ends: 3355 [2020-07-21 20:22:57,132 INFO L226 Difference]: Without dead ends: 1319 [2020-07-21 20:22:57,141 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 183 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 20:22:57,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2020-07-21 20:22:57,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1319. [2020-07-21 20:22:57,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1319 states. [2020-07-21 20:22:57,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1668 transitions. [2020-07-21 20:22:57,185 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1668 transitions. Word has length 185 [2020-07-21 20:22:57,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:22:57,185 INFO L479 AbstractCegarLoop]: Abstraction has 1319 states and 1668 transitions. [2020-07-21 20:22:57,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:22:57,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1668 transitions. [2020-07-21 20:22:57,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-07-21 20:22:57,190 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:22:57,190 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 20:22:57,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:22:57,401 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:22:57,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:22:57,402 INFO L82 PathProgramCache]: Analyzing trace with hash 726002093, now seen corresponding path program 1 times [2020-07-21 20:22:57,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:22:57,403 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [925026923] [2020-07-21 20:22:57,404 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 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 20:22:57,510 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:22:57,510 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:22:57,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:22:57,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:22:57,568 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:22:57,569 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:22:57,569 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [925026923] [2020-07-21 20:22:57,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:22:57,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:22:57,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831342887] [2020-07-21 20:22:57,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:22:57,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:22:57,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:22:57,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:22:57,572 INFO L87 Difference]: Start difference. First operand 1319 states and 1668 transitions. Second operand 3 states. [2020-07-21 20:23:01,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:23:01,752 INFO L93 Difference]: Finished difference Result 2189 states and 2822 transitions. [2020-07-21 20:23:01,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:23:01,759 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 200 [2020-07-21 20:23:01,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:23:01,773 INFO L225 Difference]: With dead ends: 2189 [2020-07-21 20:23:01,774 INFO L226 Difference]: Without dead ends: 2187 [2020-07-21 20:23:01,775 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 198 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 20:23:01,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2020-07-21 20:23:01,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 1756. [2020-07-21 20:23:01,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1756 states. [2020-07-21 20:23:01,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1756 states to 1756 states and 2286 transitions. [2020-07-21 20:23:01,838 INFO L78 Accepts]: Start accepts. Automaton has 1756 states and 2286 transitions. Word has length 200 [2020-07-21 20:23:01,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:23:01,839 INFO L479 AbstractCegarLoop]: Abstraction has 1756 states and 2286 transitions. [2020-07-21 20:23:01,839 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:23:01,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1756 states and 2286 transitions. [2020-07-21 20:23:01,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-07-21 20:23:01,845 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:23:01,846 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 20:23:02,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:23:02,062 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:23:02,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:23:02,063 INFO L82 PathProgramCache]: Analyzing trace with hash -31565570, now seen corresponding path program 1 times [2020-07-21 20:23:02,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:23:02,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [463829409] [2020-07-21 20:23:02,064 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 20:23:02,188 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:23:02,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:23:02,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:23:02,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:23:02,320 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 189 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:23:02,320 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:23:02,682 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 189 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:23:02,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [463829409] [2020-07-21 20:23:02,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:23:02,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:23:02,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795713020] [2020-07-21 20:23:02,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:23:02,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:23:02,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:23:02,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:23:02,686 INFO L87 Difference]: Start difference. First operand 1756 states and 2286 transitions. Second operand 6 states. [2020-07-21 20:23:10,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:23:10,504 INFO L93 Difference]: Finished difference Result 4228 states and 6058 transitions. [2020-07-21 20:23:10,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 20:23:10,514 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 233 [2020-07-21 20:23:10,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:23:10,536 INFO L225 Difference]: With dead ends: 4228 [2020-07-21 20:23:10,536 INFO L226 Difference]: Without dead ends: 2478 [2020-07-21 20:23:10,543 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 471 GetRequests, 462 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:23:10,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2478 states. [2020-07-21 20:23:10,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2478 to 2074. [2020-07-21 20:23:10,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2074 states. [2020-07-21 20:23:10,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2074 states to 2074 states and 2622 transitions. [2020-07-21 20:23:10,636 INFO L78 Accepts]: Start accepts. Automaton has 2074 states and 2622 transitions. Word has length 233 [2020-07-21 20:23:10,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:23:10,637 INFO L479 AbstractCegarLoop]: Abstraction has 2074 states and 2622 transitions. [2020-07-21 20:23:10,637 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:23:10,637 INFO L276 IsEmpty]: Start isEmpty. Operand 2074 states and 2622 transitions. [2020-07-21 20:23:10,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2020-07-21 20:23:10,645 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:23:10,645 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 20:23:10,860 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:23:10,861 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:23:10,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:23:10,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1481429953, now seen corresponding path program 1 times [2020-07-21 20:23:10,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:23:10,863 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1188113192] [2020-07-21 20:23:10,864 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 20:23:11,005 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:23:11,005 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:23:11,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 20:23:11,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:23:11,259 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 19 [2020-07-21 20:23:11,267 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 20:23:11,267 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 20:23:11,474 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 21 [2020-07-21 20:23:11,748 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 263 proven. 57 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-21 20:23:11,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:23:12,052 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-07-21 20:23:12,160 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2020-07-21 20:23:12,267 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2020-07-21 20:23:12,353 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 20:23:12,353 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:23:12,354 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:23:12,355 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 20:23:12,469 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:23:12,845 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 30 [2020-07-21 20:23:12,851 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 20:23:12,860 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:23:13,155 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 192 proven. 6 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2020-07-21 20:23:13,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1188113192] [2020-07-21 20:23:13,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:23:13,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2020-07-21 20:23:13,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189548729] [2020-07-21 20:23:13,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-21 20:23:13,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:23:13,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-21 20:23:13,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:23:13,158 INFO L87 Difference]: Start difference. First operand 2074 states and 2622 transitions. Second operand 9 states. [2020-07-21 20:23:24,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:23:24,165 INFO L93 Difference]: Finished difference Result 4785 states and 6114 transitions. [2020-07-21 20:23:24,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 20:23:24,175 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 298 [2020-07-21 20:23:24,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:23:24,177 INFO L225 Difference]: With dead ends: 4785 [2020-07-21 20:23:24,177 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 20:23:24,194 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 597 GetRequests, 589 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2020-07-21 20:23:24,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 20:23:24,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 20:23:24,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 20:23:24,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 20:23:24,198 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 298 [2020-07-21 20:23:24,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:23:24,198 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 20:23:24,198 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-21 20:23:24,198 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 20:23:24,199 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 20:23:24,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:23:24,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 20:23:25,089 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 15 [2020-07-21 20:23:25,387 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 27 [2020-07-21 20:23:28,830 WARN L193 SmtUtils]: Spent 3.43 s on a formula simplification. DAG size of input: 151 DAG size of output: 72 [2020-07-21 20:23:29,582 WARN L193 SmtUtils]: Spent 710.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 44 [2020-07-21 20:23:30,324 WARN L193 SmtUtils]: Spent 738.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 44 [2020-07-21 20:23:30,330 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:23:30,331 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= |old(~a19~0)| ~a19~0) (<= |old(~a1~0)| ~a1~0)) [2020-07-21 20:23:30,331 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:23:30,331 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-21 20:23:30,331 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,331 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,331 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,331 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,332 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,332 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,332 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-21 20:23:30,332 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-21 20:23:30,332 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 20:23:30,332 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 20:23:30,332 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 20:23:30,333 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 20:23:30,333 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 20:23:30,333 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 20:23:30,333 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-21 20:23:30,333 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-21 20:23:30,334 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-21 20:23:30,334 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,334 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,334 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,334 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,335 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,335 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-21 20:23:30,335 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-21 20:23:30,335 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-21 20:23:30,335 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-21 20:23:30,335 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 20:23:30,335 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 20:23:30,335 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 20:23:30,335 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 20:23:30,335 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 20:23:30,335 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-21 20:23:30,335 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-21 20:23:30,336 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-21 20:23:30,336 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-21 20:23:30,336 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2020-07-21 20:23:30,336 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-21 20:23:30,336 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,336 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,337 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,337 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,337 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,337 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-21 20:23:30,337 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 20:23:30,337 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 20:23:30,337 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 20:23:30,337 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 20:23:30,338 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 20:23:30,338 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-21 20:23:30,338 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-21 20:23:30,338 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-21 20:23:30,338 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-21 20:23:30,338 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,338 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,339 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,339 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,339 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,339 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-21 20:23:30,339 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-21 20:23:30,339 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-21 20:23:30,340 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 20:23:30,340 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 20:23:30,340 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 20:23:30,340 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 20:23:30,340 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 20:23:30,340 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-21 20:23:30,340 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-21 20:23:30,340 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-21 20:23:30,340 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-21 20:23:30,341 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-21 20:23:30,341 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,341 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,341 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,341 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,341 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,341 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 20:23:30,341 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 20:23:30,341 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 20:23:30,341 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 20:23:30,342 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 20:23:30,342 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-21 20:23:30,342 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-21 20:23:30,342 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-21 20:23:30,342 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-21 20:23:30,342 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,342 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,342 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,342 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,342 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,342 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,342 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,342 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-21 20:23:30,342 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-21 20:23:30,343 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-21 20:23:30,343 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-21 20:23:30,343 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 20:23:30,343 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 20:23:30,343 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 20:23:30,343 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 20:23:30,343 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 20:23:30,343 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-21 20:23:30,343 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-21 20:23:30,343 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-21 20:23:30,343 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-21 20:23:30,343 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,344 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,344 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,344 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,344 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 20:23:30,344 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,344 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,344 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-21 20:23:30,344 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-21 20:23:30,345 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-21 20:23:30,345 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 20:23:30,345 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 20:23:30,345 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 20:23:30,345 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 20:23:30,345 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 20:23:30,345 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 20:23:30,345 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-21 20:23:30,345 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-21 20:23:30,345 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-21 20:23:30,345 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-21 20:23:30,345 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,345 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,346 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,346 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,346 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,346 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,346 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-21 20:23:30,346 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-21 20:23:30,346 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-21 20:23:30,346 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 20:23:30,346 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 20:23:30,346 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 20:23:30,346 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 20:23:30,346 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 20:23:30,346 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 20:23:30,346 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-21 20:23:30,346 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-21 20:23:30,347 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse1 (<= ~a10~0 0)) (.cse5 (<= |old(~a19~0)| ~a19~0)) (.cse6 (<= |old(~a1~0)| ~a1~0))) (let ((.cse4 (not (<= 2 |old(~a10~0)|))) (.cse3 (<= 2 ~a10~0)) (.cse8 (not (<= 9 |old(~a19~0)|))) (.cse2 (not (<= |old(~a10~0)| 0))) (.cse10 (and .cse1 .cse5 .cse6)) (.cse7 (not (= 0 ~a12~0))) (.cse9 (not (= 14 ~a4~0))) (.cse0 (not (<= |old(~a19~0)| 7)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse4) (or (and (or (not (= 9 ~a19~0)) (< 0 (+ ~a1~0 13)) (not (= 0 ~a10~0))) .cse5 .cse6) (= 0 |old(~a10~0)|) .cse7 .cse8 .cse9) (or .cse7 .cse9 .cse4 (and .cse5 .cse6 .cse3)) (or .cse2 .cse7 .cse8 .cse10 .cse9) (or (not (<= 23 |old(~a1~0)|)) .cse2 .cse7 .cse10 .cse9) (or (and .cse5 .cse6) .cse7 .cse9 (forall ((v_~a1~0_367 Int)) (or (not (= 0 (mod v_~a1~0_367 5))) (not (<= (+ (div v_~a1~0_367 5) 331501) |old(~a1~0)|)) (not (< 0 (+ v_~a1~0_367 13)))))) (or .cse0 (and .cse6 (<= ~a19~0 7)))))) [2020-07-21 20:23:30,347 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-21 20:23:30,347 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-21 20:23:30,347 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-21 20:23:30,347 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,347 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,347 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,347 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,347 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,347 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,348 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-21 20:23:30,348 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 20:23:30,348 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 20:23:30,348 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 20:23:30,348 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 20:23:30,348 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 20:23:30,348 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 20:23:30,348 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-21 20:23:30,348 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-21 20:23:30,348 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-21 20:23:30,348 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-21 20:23:30,348 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-21 20:23:30,349 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-21 20:23:30,349 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,349 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,349 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,349 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,349 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,349 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,349 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-21 20:23:30,349 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-21 20:23:30,349 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-21 20:23:30,349 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 20:23:30,350 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 20:23:30,350 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 20:23:30,350 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 20:23:30,350 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 20:23:30,350 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 20:23:30,350 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-21 20:23:30,350 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-21 20:23:30,350 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-21 20:23:30,350 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,350 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,350 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,350 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,350 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,350 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:23:30,351 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-21 20:23:30,351 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-21 20:23:30,351 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-21 20:23:30,351 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 20:23:30,351 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 20:23:30,351 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 20:23:30,351 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 20:23:30,351 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 20:23:30,351 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 20:23:30,351 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-21 20:23:30,351 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-21 20:23:30,351 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-21 20:23:30,352 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:23:30,352 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (= 14 ~a4~0) (<= 9 ~a19~0) (= 0 ~a12~0) (<= 23 ~a1~0)) [2020-07-21 20:23:30,352 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 20:23:30,352 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:23:30,352 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (= 0 ~a12~0)) (not (<= 9 |old(~a19~0)|)) (and (<= ~a10~0 0) (<= |old(~a19~0)| ~a19~0) (<= |old(~a1~0)| ~a1~0)) (not (= 14 ~a4~0))) [2020-07-21 20:23:30,352 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-21 20:23:30,352 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (<= 9 ~a19~0) (exists ((v_~a1~0_367 Int)) (and (= 0 (mod v_~a1~0_367 5)) (<= (+ (div v_~a1~0_367 5) 331501) ~a1~0) (< 0 (+ v_~a1~0_367 13)))) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (= 0 ~a12~0)) (not (= 14 ~a4~0)) (<= 2 ~a10~0) (and (<= ~a10~0 0) (<= 23 ~a1~0)) (<= ~a19~0 7)) [2020-07-21 20:23:30,352 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 20:23:30,352 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-21 20:23:30,353 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (<= 9 ~a19~0) (exists ((v_~a1~0_367 Int)) (and (= 0 (mod v_~a1~0_367 5)) (<= (+ (div v_~a1~0_367 5) 331501) ~a1~0) (< 0 (+ v_~a1~0_367 13)))) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (= 0 ~a12~0)) (not (= 14 ~a4~0)) (<= 2 ~a10~0) (and (<= ~a10~0 0) (<= 23 ~a1~0)) (<= ~a19~0 7)) [2020-07-21 20:23:30,353 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-21 20:23:30,363 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] [2020-07-21 20:23:30,365 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] [2020-07-21 20:23:30,365 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] [2020-07-21 20:23:30,374 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] [2020-07-21 20:23:30,374 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] [2020-07-21 20:23:30,374 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] [2020-07-21 20:23:30,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:23:30 BoogieIcfgContainer [2020-07-21 20:23:30,384 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 20:23:30,390 INFO L168 Benchmark]: Toolchain (without parser) took 656264.23 ms. Allocated memory was 138.9 MB in the beginning and 299.4 MB in the end (delta: 160.4 MB). Free memory was 101.7 MB in the beginning and 120.1 MB in the end (delta: -18.4 MB). Peak memory consumption was 188.2 MB. Max. memory is 7.1 GB. [2020-07-21 20:23:30,391 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 20:23:30,395 INFO L168 Benchmark]: CACSL2BoogieTranslator took 762.73 ms. Allocated memory was 138.9 MB in the beginning and 205.5 MB in the end (delta: 66.6 MB). Free memory was 101.5 MB in the beginning and 171.5 MB in the end (delta: -70.0 MB). Peak memory consumption was 36.9 MB. Max. memory is 7.1 GB. [2020-07-21 20:23:30,396 INFO L168 Benchmark]: Boogie Preprocessor took 113.75 ms. Allocated memory is still 205.5 MB. Free memory was 171.5 MB in the beginning and 166.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-21 20:23:30,397 INFO L168 Benchmark]: RCFGBuilder took 1406.58 ms. Allocated memory was 205.5 MB in the beginning and 239.6 MB in the end (delta: 34.1 MB). Free memory was 166.7 MB in the beginning and 183.7 MB in the end (delta: -16.9 MB). Peak memory consumption was 81.7 MB. Max. memory is 7.1 GB. [2020-07-21 20:23:30,398 INFO L168 Benchmark]: TraceAbstraction took 653973.71 ms. Allocated memory was 239.6 MB in the beginning and 299.4 MB in the end (delta: 59.8 MB). Free memory was 182.2 MB in the beginning and 120.1 MB in the end (delta: 62.1 MB). Peak memory consumption was 167.9 MB. Max. memory is 7.1 GB. [2020-07-21 20:23:30,406 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 762.73 ms. Allocated memory was 138.9 MB in the beginning and 205.5 MB in the end (delta: 66.6 MB). Free memory was 101.5 MB in the beginning and 171.5 MB in the end (delta: -70.0 MB). Peak memory consumption was 36.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.75 ms. Allocated memory is still 205.5 MB. Free memory was 171.5 MB in the beginning and 166.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1406.58 ms. Allocated memory was 205.5 MB in the beginning and 239.6 MB in the end (delta: 34.1 MB). Free memory was 166.7 MB in the beginning and 183.7 MB in the end (delta: -16.9 MB). Peak memory consumption was 81.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 653973.71 ms. Allocated memory was 239.6 MB in the beginning and 299.4 MB in the end (delta: 59.8 MB). Free memory was 182.2 MB in the beginning and 120.1 MB in the end (delta: 62.1 MB). Peak memory consumption was 167.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 175]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant [2020-07-21 20:23:30,416 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] [2020-07-21 20:23:30,416 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] [2020-07-21 20:23:30,419 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] [2020-07-21 20:23:30,420 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] [2020-07-21 20:23:30,421 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] [2020-07-21 20:23:30,421 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_367,QUANTIFIED] Derived loop invariant: ((((((((!(23 <= \old(a1)) || 9 <= a19) || (\exists v_~a1~0_367 : int :: (0 == v_~a1~0_367 % 5 && v_~a1~0_367 / 5 + 331501 <= a1) && 0 < v_~a1~0_367 + 13)) || !(\old(a10) <= 0)) || !(9 <= \old(a19))) || !(0 == a12)) || !(14 == a4)) || 2 <= a10) || (a10 <= 0 && 23 <= a1)) || a19 <= 7 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 647.9s, OverallIterations: 7, TraceHistogramMax: 4, AutomataDifference: 634.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 672 SDtfs, 1805 SDslu, 181 SDs, 0 SdLazy, 4563 SolverSat, 920 SolverUnsat, 263 SolverUnknown, 0 SolverNotchecked, 595.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1850 GetRequests, 1817 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 16.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2074occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 865 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 71 PreInvPairs, 119 NumberOfFragments, 356 HoareAnnotationTreeSize, 71 FomulaSimplifications, 4404 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2012 FormulaSimplificationTreeSizeReductionInter, 5.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 10.6s InterpolantComputationTime, 1254 NumberOfCodeBlocks, 1254 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1776 ConstructedInterpolants, 118 QuantifiedInterpolants, 1456580 SizeOfPredicates, 19 NumberOfNonLiveVariables, 2291 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 1260/1380 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...