/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 NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label13.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 11:29:21,840 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 11:29:21,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 11:29:21,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 11:29:21,863 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 11:29:21,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 11:29:21,868 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 11:29:21,869 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 11:29:21,871 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 11:29:21,872 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 11:29:21,873 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 11:29:21,874 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 11:29:21,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 11:29:21,876 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 11:29:21,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 11:29:21,879 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 11:29:21,880 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 11:29:21,881 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 11:29:21,883 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 11:29:21,885 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 11:29:21,890 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 11:29:21,895 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 11:29:21,896 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 11:29:21,897 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 11:29:21,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 11:29:21,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 11:29:21,913 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 11:29:21,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 11:29:21,915 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 11:29:21,930 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 11:29:21,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 11:29:21,932 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 11:29:21,932 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 11:29:21,932 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 11:29:21,932 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 11:29:21,933 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 11:29:21,933 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 11:29:21,933 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 11:29:21,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 11:29:21,933 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 11:29:21,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 11:29:21,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 11:29:21,934 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 11:29:21,934 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 11:29:21,934 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 11:29:21,934 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 11:29:21,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 11:29:21,935 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 11:29:21,935 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 11:29:21,935 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 11:29:21,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:29:21,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 11:29:21,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 11:29:21,936 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 11:29:21,936 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 11:29:21,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:21,937 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 11:29:21,937 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 11:29:21,937 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 -> NOT_INCREMENTALLY [2020-07-21 11:29:22,242 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 11:29:22,256 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 11:29:22,259 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 11:29:22,261 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 11:29:22,261 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 11:29:22,262 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label13.c [2020-07-21 11:29:22,332 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/497b6d2cb/e8cd66cd6552466e868405fe56dea589/FLAGc254cef6d [2020-07-21 11:29:22,926 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 11:29:22,927 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label13.c [2020-07-21 11:29:22,938 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/497b6d2cb/e8cd66cd6552466e868405fe56dea589/FLAGc254cef6d [2020-07-21 11:29:23,167 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/497b6d2cb/e8cd66cd6552466e868405fe56dea589 [2020-07-21 11:29:23,175 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 11:29:23,178 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 11:29:23,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 11:29:23,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 11:29:23,184 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 11:29:23,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:29:23" (1/1) ... [2020-07-21 11:29:23,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d0c3774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:29:23, skipping insertion in model container [2020-07-21 11:29:23,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:29:23" (1/1) ... [2020-07-21 11:29:23,197 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 11:29:23,260 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 11:29:23,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:29:23,717 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 11:29:23,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:29:23,935 INFO L208 MainTranslator]: Completed translation [2020-07-21 11:29:23,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:29:23 WrapperNode [2020-07-21 11:29:23,936 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 11:29:23,937 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 11:29:23,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 11:29:23,937 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 11:29:23,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:29:23" (1/1) ... [2020-07-21 11:29:23,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:29:23" (1/1) ... [2020-07-21 11:29:23,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:29:23" (1/1) ... [2020-07-21 11:29:23,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:29:23" (1/1) ... [2020-07-21 11:29:24,011 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:29:23" (1/1) ... [2020-07-21 11:29:24,030 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:29:23" (1/1) ... [2020-07-21 11:29:24,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:29:23" (1/1) ... [2020-07-21 11:29:24,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 11:29:24,048 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 11:29:24,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 11:29:24,048 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 11:29:24,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:29:23" (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 11:29:24,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 11:29:24,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 11:29:24,132 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 11:29:24,132 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 11:29:24,132 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 11:29:24,132 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 11:29:24,133 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 11:29:24,134 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 11:29:24,135 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 11:29:24,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 11:29:24,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 11:29:25,394 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 11:29:25,394 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 11:29:25,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:29:25 BoogieIcfgContainer [2020-07-21 11:29:25,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 11:29:25,402 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 11:29:25,402 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 11:29:25,405 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 11:29:25,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:29:23" (1/3) ... [2020-07-21 11:29:25,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53cf76f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:29:25, skipping insertion in model container [2020-07-21 11:29:25,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:29:23" (2/3) ... [2020-07-21 11:29:25,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53cf76f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:29:25, skipping insertion in model container [2020-07-21 11:29:25,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:29:25" (3/3) ... [2020-07-21 11:29:25,409 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label13.c [2020-07-21 11:29:25,417 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 11:29:25,425 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 11:29:25,440 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 11:29:25,467 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 11:29:25,467 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 11:29:25,467 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 11:29:25,467 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 11:29:25,468 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 11:29:25,468 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 11:29:25,468 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 11:29:25,468 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 11:29:25,493 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-21 11:29:25,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-21 11:29:25,503 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:25,504 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] [2020-07-21 11:29:25,504 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:25,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:25,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1614181646, now seen corresponding path program 1 times [2020-07-21 11:29:25,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:25,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2007205941] [2020-07-21 11:29:25,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 11:29:25,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:25,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:29:25,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:25,765 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 11:29:25,766 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:29:25,767 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2007205941] [2020-07-21 11:29:25,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:29:25,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:29:25,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430355427] [2020-07-21 11:29:25,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:29:25,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:25,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:29:25,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:29:25,797 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-21 11:29:27,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:27,084 INFO L93 Difference]: Finished difference Result 586 states and 1004 transitions. [2020-07-21 11:29:27,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:29:27,088 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-07-21 11:29:27,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:27,120 INFO L225 Difference]: With dead ends: 586 [2020-07-21 11:29:27,120 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 11:29:27,135 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 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 11:29:27,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 11:29:27,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-21 11:29:27,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 11:29:27,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 426 transitions. [2020-07-21 11:29:27,217 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 426 transitions. Word has length 61 [2020-07-21 11:29:27,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:27,218 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 426 transitions. [2020-07-21 11:29:27,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:29:27,218 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 426 transitions. [2020-07-21 11:29:27,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-07-21 11:29:27,225 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:27,226 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, 1, 1, 1, 1, 1, 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 11:29:27,440 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:27,441 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:27,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:27,442 INFO L82 PathProgramCache]: Analyzing trace with hash 1316913554, now seen corresponding path program 1 times [2020-07-21 11:29:27,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:27,443 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1856821479] [2020-07-21 11:29:27,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 11:29:27,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:27,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:29:27,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:27,619 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:29:27,620 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:29:27,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1856821479] [2020-07-21 11:29:27,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:29:27,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:29:27,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367873197] [2020-07-21 11:29:27,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:29:27,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:27,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:29:27,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:29:27,625 INFO L87 Difference]: Start difference. First operand 294 states and 426 transitions. Second operand 5 states. [2020-07-21 11:29:28,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:28,619 INFO L93 Difference]: Finished difference Result 890 states and 1316 transitions. [2020-07-21 11:29:28,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:29:28,620 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 135 [2020-07-21 11:29:28,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:28,629 INFO L225 Difference]: With dead ends: 890 [2020-07-21 11:29:28,629 INFO L226 Difference]: Without dead ends: 602 [2020-07-21 11:29:28,631 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:29:28,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2020-07-21 11:29:28,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 590. [2020-07-21 11:29:28,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 590 states. [2020-07-21 11:29:28,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 775 transitions. [2020-07-21 11:29:28,682 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 775 transitions. Word has length 135 [2020-07-21 11:29:28,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:28,682 INFO L479 AbstractCegarLoop]: Abstraction has 590 states and 775 transitions. [2020-07-21 11:29:28,682 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:29:28,683 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 775 transitions. [2020-07-21 11:29:28,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-07-21 11:29:28,687 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:28,687 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:29:28,893 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:28,894 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:28,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:28,895 INFO L82 PathProgramCache]: Analyzing trace with hash 2120193425, now seen corresponding path program 1 times [2020-07-21 11:29:28,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:28,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [456416507] [2020-07-21 11:29:28,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 11:29:28,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:28,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:29:28,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:29,022 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:29:29,022 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:29:29,022 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [456416507] [2020-07-21 11:29:29,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:29:29,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:29:29,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927253262] [2020-07-21 11:29:29,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:29:29,024 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:29,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:29:29,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:29:29,025 INFO L87 Difference]: Start difference. First operand 590 states and 775 transitions. Second operand 3 states. [2020-07-21 11:29:29,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:29,712 INFO L93 Difference]: Finished difference Result 1462 states and 1992 transitions. [2020-07-21 11:29:29,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:29:29,720 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 140 [2020-07-21 11:29:29,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:29,734 INFO L225 Difference]: With dead ends: 1462 [2020-07-21 11:29:29,735 INFO L226 Difference]: Without dead ends: 878 [2020-07-21 11:29:29,737 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 138 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 11:29:29,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2020-07-21 11:29:29,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 878. [2020-07-21 11:29:29,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 878 states. [2020-07-21 11:29:29,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1157 transitions. [2020-07-21 11:29:29,791 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1157 transitions. Word has length 140 [2020-07-21 11:29:29,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:29,793 INFO L479 AbstractCegarLoop]: Abstraction has 878 states and 1157 transitions. [2020-07-21 11:29:29,793 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:29:29,793 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1157 transitions. [2020-07-21 11:29:29,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-07-21 11:29:29,804 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:29,804 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:29:30,009 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:30,010 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:30,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:30,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1756677455, now seen corresponding path program 1 times [2020-07-21 11:29:30,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:30,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1128206982] [2020-07-21 11:29:30,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 11:29:30,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:30,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:29:30,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:30,177 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:29:30,178 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:29:30,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1128206982] [2020-07-21 11:29:30,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:29:30,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:29:30,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576698942] [2020-07-21 11:29:30,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:29:30,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:30,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:29:30,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:29:30,183 INFO L87 Difference]: Start difference. First operand 878 states and 1157 transitions. Second operand 5 states. [2020-07-21 11:29:31,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:31,143 INFO L93 Difference]: Finished difference Result 2370 states and 3201 transitions. [2020-07-21 11:29:31,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:29:31,147 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-07-21 11:29:31,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:31,157 INFO L225 Difference]: With dead ends: 2370 [2020-07-21 11:29:31,158 INFO L226 Difference]: Without dead ends: 1498 [2020-07-21 11:29:31,161 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:29:31,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2020-07-21 11:29:31,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1470. [2020-07-21 11:29:31,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1470 states. [2020-07-21 11:29:31,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 1802 transitions. [2020-07-21 11:29:31,226 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 1802 transitions. Word has length 156 [2020-07-21 11:29:31,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:31,226 INFO L479 AbstractCegarLoop]: Abstraction has 1470 states and 1802 transitions. [2020-07-21 11:29:31,227 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:29:31,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 1802 transitions. [2020-07-21 11:29:31,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-07-21 11:29:31,229 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:31,230 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:29:31,443 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:31,444 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:31,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:31,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1761990238, now seen corresponding path program 1 times [2020-07-21 11:29:31,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:31,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [578576707] [2020-07-21 11:29:31,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 11:29:31,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:31,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:29:31,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:31,592 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:29:31,592 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:29:31,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [578576707] [2020-07-21 11:29:31,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:29:31,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:29:31,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957107222] [2020-07-21 11:29:31,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:29:31,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:31,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:29:31,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:29:31,595 INFO L87 Difference]: Start difference. First operand 1470 states and 1802 transitions. Second operand 3 states. [2020-07-21 11:29:32,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:32,323 INFO L93 Difference]: Finished difference Result 3226 states and 4023 transitions. [2020-07-21 11:29:32,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:29:32,325 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2020-07-21 11:29:32,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:32,334 INFO L225 Difference]: With dead ends: 3226 [2020-07-21 11:29:32,334 INFO L226 Difference]: Without dead ends: 1762 [2020-07-21 11:29:32,338 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 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 11:29:32,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1762 states. [2020-07-21 11:29:32,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1762 to 1762. [2020-07-21 11:29:32,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1762 states. [2020-07-21 11:29:32,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1762 states to 1762 states and 2139 transitions. [2020-07-21 11:29:32,384 INFO L78 Accepts]: Start accepts. Automaton has 1762 states and 2139 transitions. Word has length 157 [2020-07-21 11:29:32,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:32,385 INFO L479 AbstractCegarLoop]: Abstraction has 1762 states and 2139 transitions. [2020-07-21 11:29:32,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:29:32,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1762 states and 2139 transitions. [2020-07-21 11:29:32,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-07-21 11:29:32,390 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:32,391 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, 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] [2020-07-21 11:29:32,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:32,606 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:32,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:32,608 INFO L82 PathProgramCache]: Analyzing trace with hash -45528551, now seen corresponding path program 1 times [2020-07-21 11:29:32,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:32,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1396130760] [2020-07-21 11:29:32,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 11:29:32,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:32,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:29:32,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:32,760 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-21 11:29:32,760 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:29:32,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1396130760] [2020-07-21 11:29:32,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:29:32,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:29:32,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675228049] [2020-07-21 11:29:32,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:29:32,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:32,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:29:32,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:29:32,766 INFO L87 Difference]: Start difference. First operand 1762 states and 2139 transitions. Second operand 3 states. [2020-07-21 11:29:33,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:33,403 INFO L93 Difference]: Finished difference Result 3806 states and 4699 transitions. [2020-07-21 11:29:33,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:29:33,403 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 228 [2020-07-21 11:29:33,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:33,413 INFO L225 Difference]: With dead ends: 3806 [2020-07-21 11:29:33,413 INFO L226 Difference]: Without dead ends: 2050 [2020-07-21 11:29:33,417 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 226 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 11:29:33,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2050 states. [2020-07-21 11:29:33,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2050 to 2050. [2020-07-21 11:29:33,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2050 states. [2020-07-21 11:29:33,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2050 states to 2050 states and 2517 transitions. [2020-07-21 11:29:33,469 INFO L78 Accepts]: Start accepts. Automaton has 2050 states and 2517 transitions. Word has length 228 [2020-07-21 11:29:33,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:33,469 INFO L479 AbstractCegarLoop]: Abstraction has 2050 states and 2517 transitions. [2020-07-21 11:29:33,470 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:29:33,470 INFO L276 IsEmpty]: Start isEmpty. Operand 2050 states and 2517 transitions. [2020-07-21 11:29:33,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-07-21 11:29:33,476 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:33,476 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, 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] [2020-07-21 11:29:33,689 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:33,690 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:33,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:33,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1221820657, now seen corresponding path program 1 times [2020-07-21 11:29:33,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:33,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1562894582] [2020-07-21 11:29:33,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 11:29:33,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:33,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:29:33,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:33,844 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-07-21 11:29:33,844 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:29:33,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1562894582] [2020-07-21 11:29:33,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:29:33,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:29:33,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17702901] [2020-07-21 11:29:33,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:29:33,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:33,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:29:33,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:29:33,846 INFO L87 Difference]: Start difference. First operand 2050 states and 2517 transitions. Second operand 3 states. [2020-07-21 11:29:34,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:34,499 INFO L93 Difference]: Finished difference Result 3206 states and 3989 transitions. [2020-07-21 11:29:34,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:29:34,503 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 244 [2020-07-21 11:29:34,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:34,519 INFO L225 Difference]: With dead ends: 3206 [2020-07-21 11:29:34,519 INFO L226 Difference]: Without dead ends: 3204 [2020-07-21 11:29:34,522 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 242 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 11:29:34,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3204 states. [2020-07-21 11:29:34,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3204 to 2775. [2020-07-21 11:29:34,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2775 states. [2020-07-21 11:29:34,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2775 states to 2775 states and 3490 transitions. [2020-07-21 11:29:34,602 INFO L78 Accepts]: Start accepts. Automaton has 2775 states and 3490 transitions. Word has length 244 [2020-07-21 11:29:34,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:34,602 INFO L479 AbstractCegarLoop]: Abstraction has 2775 states and 3490 transitions. [2020-07-21 11:29:34,603 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:29:34,603 INFO L276 IsEmpty]: Start isEmpty. Operand 2775 states and 3490 transitions. [2020-07-21 11:29:34,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-07-21 11:29:34,610 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:34,611 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, 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] [2020-07-21 11:29:34,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:34,824 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:34,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:34,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1248765022, now seen corresponding path program 1 times [2020-07-21 11:29:34,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:34,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [437483892] [2020-07-21 11:29:34,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:34,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:34,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 11:29:34,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:35,027 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-07-21 11:29:35,028 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:29:35,028 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [437483892] [2020-07-21 11:29:35,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:29:35,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:29:35,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873572880] [2020-07-21 11:29:35,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:29:35,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:35,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:29:35,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:29:35,030 INFO L87 Difference]: Start difference. First operand 2775 states and 3490 transitions. Second operand 5 states. [2020-07-21 11:29:36,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:36,021 INFO L93 Difference]: Finished difference Result 5733 states and 7222 transitions. [2020-07-21 11:29:36,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:29:36,026 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 257 [2020-07-21 11:29:36,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:36,040 INFO L225 Difference]: With dead ends: 5733 [2020-07-21 11:29:36,040 INFO L226 Difference]: Without dead ends: 2964 [2020-07-21 11:29:36,047 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:29:36,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2964 states. [2020-07-21 11:29:36,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2964 to 2235. [2020-07-21 11:29:36,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2235 states. [2020-07-21 11:29:36,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2235 states to 2235 states and 2804 transitions. [2020-07-21 11:29:36,117 INFO L78 Accepts]: Start accepts. Automaton has 2235 states and 2804 transitions. Word has length 257 [2020-07-21 11:29:36,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:36,117 INFO L479 AbstractCegarLoop]: Abstraction has 2235 states and 2804 transitions. [2020-07-21 11:29:36,117 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:29:36,118 INFO L276 IsEmpty]: Start isEmpty. Operand 2235 states and 2804 transitions. [2020-07-21 11:29:36,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-07-21 11:29:36,126 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:36,126 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:29:36,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:36,342 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:36,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:36,343 INFO L82 PathProgramCache]: Analyzing trace with hash -649626018, now seen corresponding path program 1 times [2020-07-21 11:29:36,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:36,344 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [756646998] [2020-07-21 11:29:36,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:36,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:36,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:29:36,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:36,498 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 11:29:36,499 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:29:36,560 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 322 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-07-21 11:29:36,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:29:36,670 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:29:36,671 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:29:36,677 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-21 11:29:36,677 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:29:36,875 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 234 proven. 77 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-07-21 11:29:36,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [756646998] [2020-07-21 11:29:36,876 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:29:36,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 11:29:36,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975318564] [2020-07-21 11:29:36,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:29:36,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:36,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:29:36,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:29:36,878 INFO L87 Difference]: Start difference. First operand 2235 states and 2804 transitions. Second operand 6 states. [2020-07-21 11:29:38,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:38,020 INFO L93 Difference]: Finished difference Result 4353 states and 5590 transitions. [2020-07-21 11:29:38,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:29:38,021 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 327 [2020-07-21 11:29:38,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:38,036 INFO L225 Difference]: With dead ends: 4353 [2020-07-21 11:29:38,036 INFO L226 Difference]: Without dead ends: 2267 [2020-07-21 11:29:38,043 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 659 GetRequests, 650 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:29:38,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2267 states. [2020-07-21 11:29:38,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2267 to 2092. [2020-07-21 11:29:38,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2092 states. [2020-07-21 11:29:38,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2092 states to 2092 states and 2494 transitions. [2020-07-21 11:29:38,125 INFO L78 Accepts]: Start accepts. Automaton has 2092 states and 2494 transitions. Word has length 327 [2020-07-21 11:29:38,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:38,125 INFO L479 AbstractCegarLoop]: Abstraction has 2092 states and 2494 transitions. [2020-07-21 11:29:38,125 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:29:38,126 INFO L276 IsEmpty]: Start isEmpty. Operand 2092 states and 2494 transitions. [2020-07-21 11:29:38,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2020-07-21 11:29:38,133 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:38,134 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:29:38,348 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:38,349 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:38,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:38,349 INFO L82 PathProgramCache]: Analyzing trace with hash -2127316315, now seen corresponding path program 1 times [2020-07-21 11:29:38,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:38,350 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [890012454] [2020-07-21 11:29:38,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:38,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:38,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:29:38,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:38,635 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 338 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-07-21 11:29:38,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:29:38,906 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 241 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-07-21 11:29:38,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [890012454] [2020-07-21 11:29:38,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:29:38,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:29:38,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869971156] [2020-07-21 11:29:38,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:29:38,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:38,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:29:38,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:29:38,910 INFO L87 Difference]: Start difference. First operand 2092 states and 2494 transitions. Second operand 7 states. [2020-07-21 11:29:40,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:40,506 INFO L93 Difference]: Finished difference Result 5908 states and 7038 transitions. [2020-07-21 11:29:40,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:29:40,507 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 336 [2020-07-21 11:29:40,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:40,520 INFO L225 Difference]: With dead ends: 5908 [2020-07-21 11:29:40,520 INFO L226 Difference]: Without dead ends: 3222 [2020-07-21 11:29:40,526 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 675 GetRequests, 667 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:29:40,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3222 states. [2020-07-21 11:29:40,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3222 to 1929. [2020-07-21 11:29:40,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1929 states. [2020-07-21 11:29:40,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1929 states to 1929 states and 2197 transitions. [2020-07-21 11:29:40,578 INFO L78 Accepts]: Start accepts. Automaton has 1929 states and 2197 transitions. Word has length 336 [2020-07-21 11:29:40,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:40,579 INFO L479 AbstractCegarLoop]: Abstraction has 1929 states and 2197 transitions. [2020-07-21 11:29:40,579 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:29:40,579 INFO L276 IsEmpty]: Start isEmpty. Operand 1929 states and 2197 transitions. [2020-07-21 11:29:40,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2020-07-21 11:29:40,589 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:40,589 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, 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, 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] [2020-07-21 11:29:40,804 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:40,804 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:40,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:40,805 INFO L82 PathProgramCache]: Analyzing trace with hash -467387859, now seen corresponding path program 1 times [2020-07-21 11:29:40,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:40,806 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [256398804] [2020-07-21 11:29:40,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:40,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:40,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-21 11:29:40,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:40,967 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:29:40,970 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 11:29:40,972 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 11:29:40,974 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 11:29:40,977 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 11:29:40,984 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 11:29:40,989 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 11:29:40,993 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 11:29:40,996 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 11:29:40,998 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 11:29:41,005 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:29:41,008 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 11:29:41,009 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 11:29:41,016 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 11:29:41,017 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 11:29:41,020 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 11:29:41,024 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:29:41,026 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 11:29:41,028 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 11:29:41,030 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 11:29:41,034 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 11:29:41,036 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 11:29:41,049 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 11:29:41,052 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 11:29:41,054 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 11:29:41,056 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 11:29:53,571 WARN L193 SmtUtils]: Spent 12.42 s on a formula simplification. DAG size of input: 64 DAG size of output: 33 [2020-07-21 11:29:53,605 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 11:29:53,709 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 11:29:53,710 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:29:53,711 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:29:53,735 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:29:53,981 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 374 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-07-21 11:29:53,981 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:29:54,103 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:29:54,104 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:29:54,105 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:29:54,106 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:29:54,129 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:29:54,130 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:29:54,233 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:29:54,235 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:29:54,236 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:29:54,237 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 11:29:54,237 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 11:29:54,239 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 11:29:54,240 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 11:29:54,241 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 11:29:54,242 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:29:54,243 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 11:29:54,244 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:29:54,245 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 11:29:54,246 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 11:29:54,246 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 11:29:54,247 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 11:29:54,248 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 11:29:54,250 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 11:29:54,250 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 11:29:54,252 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 11:29:54,253 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 11:29:54,254 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 11:29:54,255 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 11:29:54,256 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 11:29:54,257 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 11:29:54,258 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 11:29:54,259 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:29:54,260 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 11:29:54,407 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [256398804] [2020-07-21 11:29:54,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-21 11:29:54,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-07-21 11:29:54,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532399764] [2020-07-21 11:29:54,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 11:29:54,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:54,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 11:29:54,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-07-21 11:29:54,409 INFO L87 Difference]: Start difference. First operand 1929 states and 2197 transitions. Second operand 8 states. [2020-07-21 11:30:09,454 WARN L193 SmtUtils]: Spent 12.44 s on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-07-21 11:30:11,091 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2020-07-21 11:30:11,565 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 32 [2020-07-21 11:30:12,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:30:12,126 INFO L93 Difference]: Finished difference Result 4897 states and 5731 transitions. [2020-07-21 11:30:12,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-21 11:30:12,127 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 372 [2020-07-21 11:30:12,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:30:12,140 INFO L225 Difference]: With dead ends: 4897 [2020-07-21 11:30:12,140 INFO L226 Difference]: Without dead ends: 3117 [2020-07-21 11:30:12,145 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 635 GetRequests, 613 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 27.1s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2020-07-21 11:30:12,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3117 states. [2020-07-21 11:30:12,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3117 to 2962. [2020-07-21 11:30:12,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2962 states. [2020-07-21 11:30:12,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2962 states to 2962 states and 3385 transitions. [2020-07-21 11:30:12,213 INFO L78 Accepts]: Start accepts. Automaton has 2962 states and 3385 transitions. Word has length 372 [2020-07-21 11:30:12,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:30:12,214 INFO L479 AbstractCegarLoop]: Abstraction has 2962 states and 3385 transitions. [2020-07-21 11:30:12,214 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 11:30:12,214 INFO L276 IsEmpty]: Start isEmpty. Operand 2962 states and 3385 transitions. [2020-07-21 11:30:12,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2020-07-21 11:30:12,222 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:30:12,222 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, 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, 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] [2020-07-21 11:30:12,436 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:30:12,437 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:30:12,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:30:12,438 INFO L82 PathProgramCache]: Analyzing trace with hash -145294626, now seen corresponding path program 1 times [2020-07-21 11:30:12,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:30:12,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1305283523] [2020-07-21 11:30:12,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:30:12,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:30:12,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 598 conjuncts, 20 conjunts are in the unsatisfiable core [2020-07-21 11:30:12,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:30:12,856 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 30 [2020-07-21 11:30:12,863 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 11:30:12,864 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:30:12,868 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 11:30:12,869 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 11:30:12,870 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:30:12,871 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:30:12,871 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 11:30:12,874 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:30:12,874 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 11:30:12,875 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:30:12,876 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 11:30:12,877 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 11:30:12,878 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 11:30:12,878 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 11:30:12,879 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 11:30:12,880 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 11:30:12,881 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 11:30:12,882 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 11:30:12,883 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 11:30:12,884 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 11:30:12,884 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 11:30:12,885 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 11:30:12,889 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 11:30:12,890 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 11:30:12,894 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 11:30:12,895 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 11:30:12,896 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:30:12,900 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 11:30:12,901 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 11:30:12,901 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 11:30:12,902 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 11:30:12,903 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 11:30:12,904 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 11:30:12,906 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 11:30:13,429 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 28 [2020-07-21 11:30:13,975 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 195 proven. 166 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-07-21 11:30:13,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:30:14,196 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 58 [2020-07-21 11:30:14,318 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:30:14,319 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:30:14,320 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:30:14,321 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:30:14,321 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 11:30:14,322 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 11:30:14,322 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 11:30:14,323 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 5 conjuncts [2020-07-21 11:30:14,323 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 4 conjuncts [2020-07-21 11:30:14,334 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 5 conjuncts [2020-07-21 11:30:14,336 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 5 conjuncts [2020-07-21 11:30:14,337 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 5 conjuncts [2020-07-21 11:30:14,341 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 4 conjuncts [2020-07-21 11:30:14,344 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 11:30:14,344 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 5 conjuncts [2020-07-21 11:30:14,345 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 5 conjuncts [2020-07-21 11:30:14,347 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 4 conjuncts [2020-07-21 11:30:14,350 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 5 conjuncts [2020-07-21 11:30:14,351 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 4 conjuncts [2020-07-21 11:30:14,353 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 5 conjuncts [2020-07-21 11:30:14,355 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 11:30:14,356 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 6 conjuncts [2020-07-21 11:30:14,357 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 6 conjuncts [2020-07-21 11:30:14,359 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 5 conjuncts [2020-07-21 11:30:14,366 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 6 conjuncts [2020-07-21 11:30:14,367 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 5 conjuncts [2020-07-21 11:30:14,369 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 6 conjuncts [2020-07-21 11:30:14,372 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 5 conjuncts [2020-07-21 11:30:14,373 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 4 conjuncts [2020-07-21 11:30:14,374 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:30:14,377 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 11:30:14,380 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 11:30:14,381 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 11:30:14,384 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 5 conjuncts [2020-07-21 11:30:14,386 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 11:30:14,388 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 11:30:14,393 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 11:30:14,394 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 11:30:14,451 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:30:14,451 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:30:14,452 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:30:14,613 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2020-07-21 11:30:14,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1305283523] [2020-07-21 11:30:14,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 11:30:14,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2020-07-21 11:30:14,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373376597] [2020-07-21 11:30:14,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:30:14,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:30:14,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:30:14,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-07-21 11:30:14,616 INFO L87 Difference]: Start difference. First operand 2962 states and 3385 transitions. Second operand 3 states. [2020-07-21 11:30:15,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:30:15,339 INFO L93 Difference]: Finished difference Result 6204 states and 7185 transitions. [2020-07-21 11:30:15,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:30:15,339 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 391 [2020-07-21 11:30:15,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:30:15,340 INFO L225 Difference]: With dead ends: 6204 [2020-07-21 11:30:15,340 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 11:30:15,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 781 GetRequests, 771 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-07-21 11:30:15,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 11:30:15,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 11:30:15,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 11:30:15,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 11:30:15,352 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 391 [2020-07-21 11:30:15,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:30:15,353 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 11:30:15,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:30:15,353 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 11:30:15,353 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 11:30:15,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:30:15,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 11:30:16,056 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 140 [2020-07-21 11:30:16,184 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 140 [2020-07-21 11:30:17,200 WARN L193 SmtUtils]: Spent 930.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 45 [2020-07-21 11:30:17,657 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 35 [2020-07-21 11:30:18,122 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 35 [2020-07-21 11:30:18,126 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:30:18,127 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|)) [2020-07-21 11:30:18,127 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:30:18,127 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-21 11:30:18,127 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,128 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,128 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,128 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,128 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,128 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,128 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-21 11:30:18,128 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-21 11:30:18,129 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 11:30:18,129 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 11:30:18,129 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 11:30:18,129 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 11:30:18,129 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 11:30:18,130 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 11:30:18,130 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-21 11:30:18,130 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-21 11:30:18,130 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-21 11:30:18,130 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,131 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,131 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,131 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,131 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,131 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-21 11:30:18,131 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-21 11:30:18,131 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-21 11:30:18,131 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-21 11:30:18,131 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 11:30:18,131 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 11:30:18,132 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 11:30:18,132 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 11:30:18,132 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 11:30:18,132 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-21 11:30:18,132 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-21 11:30:18,132 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-21 11:30:18,132 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-21 11:30:18,132 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 169) no Hoare annotation was computed. [2020-07-21 11:30:18,132 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-21 11:30:18,132 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,132 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,133 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,133 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,133 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,133 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-21 11:30:18,133 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 11:30:18,133 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 11:30:18,133 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 11:30:18,133 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 11:30:18,133 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 11:30:18,134 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-21 11:30:18,134 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-21 11:30:18,134 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-21 11:30:18,134 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-21 11:30:18,134 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,134 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,134 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,134 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,135 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,135 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-21 11:30:18,135 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-21 11:30:18,135 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-21 11:30:18,135 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 11:30:18,135 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 11:30:18,135 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 11:30:18,135 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 11:30:18,136 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 11:30:18,136 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-21 11:30:18,136 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-21 11:30:18,136 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-21 11:30:18,136 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-21 11:30:18,136 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-21 11:30:18,136 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,136 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,136 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,137 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,137 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,137 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 11:30:18,137 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 11:30:18,137 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 11:30:18,137 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 11:30:18,137 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 11:30:18,137 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-21 11:30:18,137 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-21 11:30:18,138 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-21 11:30:18,138 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-21 11:30:18,138 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,138 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,138 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,138 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,138 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,138 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,138 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,139 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-21 11:30:18,139 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-21 11:30:18,139 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-21 11:30:18,140 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-21 11:30:18,140 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 11:30:18,140 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 11:30:18,140 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 11:30:18,140 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 11:30:18,140 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 11:30:18,140 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-21 11:30:18,140 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-21 11:30:18,141 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-21 11:30:18,141 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-21 11:30:18,141 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,141 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,141 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,141 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,141 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 11:30:18,141 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,142 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,142 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-21 11:30:18,142 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-21 11:30:18,142 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-21 11:30:18,142 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 11:30:18,142 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 11:30:18,142 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 11:30:18,142 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 11:30:18,142 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 11:30:18,143 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 11:30:18,143 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-21 11:30:18,143 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-21 11:30:18,143 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-21 11:30:18,143 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-21 11:30:18,143 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,143 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,143 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,143 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,144 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,144 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,144 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-21 11:30:18,144 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-21 11:30:18,144 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-21 11:30:18,144 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 11:30:18,144 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 11:30:18,144 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 11:30:18,144 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 11:30:18,145 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 11:30:18,145 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 11:30:18,145 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-21 11:30:18,145 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-21 11:30:18,145 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse7 (<= ~a10~0 |old(~a10~0)|)) (.cse8 (<= |old(~a10~0)| ~a10~0)) (.cse5 (<= ~a19~0 |old(~a19~0)|)) (.cse6 (= ~a1~0 |old(~a1~0)|))) (let ((.cse4 (not (<= |old(~a10~0)| 1))) (.cse2 (not (<= 9 |old(~a19~0)|))) (.cse3 (and (<= 9 ~a19~0) .cse7 .cse8 .cse5 .cse6)) (.cse0 (and .cse7 .cse8 .cse5 .cse6)) (.cse1 (not (<= |old(~a19~0)| 9)))) (and (or (not (<= 4 |old(~a10~0)|)) .cse0 .cse1) (or .cse2 .cse3 .cse4) (or .cse0 .cse4) (or .cse2 .cse1 .cse3) (or (and (<= ~a10~0 2) .cse5 (<= 2 ~a10~0) .cse6) .cse1 (not (<= 2 |old(~a10~0)|)) (not (<= |old(~a10~0)| 2))) (or (not (<= |old(~a1~0)| 38)) .cse0 .cse1)))) [2020-07-21 11:30:18,145 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-21 11:30:18,146 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-21 11:30:18,146 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-21 11:30:18,146 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,146 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,146 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,146 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,146 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,146 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,147 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-21 11:30:18,147 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 11:30:18,147 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 11:30:18,147 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 11:30:18,147 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 11:30:18,147 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 11:30:18,147 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 11:30:18,147 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-21 11:30:18,148 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-21 11:30:18,148 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-21 11:30:18,148 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-21 11:30:18,148 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-21 11:30:18,148 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-21 11:30:18,148 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,148 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,148 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,148 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,149 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,149 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,149 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-21 11:30:18,149 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-21 11:30:18,149 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-21 11:30:18,149 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 11:30:18,149 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 11:30:18,149 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 11:30:18,149 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 11:30:18,150 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 11:30:18,150 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 11:30:18,150 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-21 11:30:18,150 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-21 11:30:18,150 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-21 11:30:18,150 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,150 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,150 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,151 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,151 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,151 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:18,151 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-21 11:30:18,151 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-21 11:30:18,151 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-21 11:30:18,151 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 11:30:18,151 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 11:30:18,152 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 11:30:18,152 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 11:30:18,152 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 11:30:18,152 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 11:30:18,152 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-21 11:30:18,152 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-21 11:30:18,152 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-21 11:30:18,152 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:30:18,153 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= ~a19~0 9) (<= 9 ~a19~0) (= 23 ~a1~0)) [2020-07-21 11:30:18,153 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 11:30:18,153 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:30:18,153 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 (<= 9 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9)) (and (<= 9 ~a19~0) (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|))) [2020-07-21 11:30:18,153 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-21 11:30:18,153 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9))) (or (and (<= 9 ~a19~0) (<= ~a19~0 |old(~a19~0)|)) (<= ~a10~0 1) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (and .cse0 (<= 4 ~a10~0)) (not (<= 9 |old(~a19~0)|)) (and (<= ~a19~0 8) (<= ~a1~0 38)) (and .cse0 (<= ~a10~0 2)) (not (<= |old(~a19~0)| 9)))) [2020-07-21 11:30:18,153 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 11:30:18,154 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-21 11:30:18,154 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9))) (or (and (<= 9 ~a19~0) (<= ~a19~0 |old(~a19~0)|)) (<= ~a10~0 1) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (and .cse0 (<= 4 ~a10~0)) (not (<= 9 |old(~a19~0)|)) (and (<= ~a19~0 8) (<= ~a1~0 38)) (and .cse0 (<= ~a10~0 2)) (not (<= |old(~a19~0)| 9)))) [2020-07-21 11:30:18,154 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-21 11:30:18,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:30:18 BoogieIcfgContainer [2020-07-21 11:30:18,174 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 11:30:18,176 INFO L168 Benchmark]: Toolchain (without parser) took 54999.28 ms. Allocated memory was 136.8 MB in the beginning and 620.8 MB in the end (delta: 483.9 MB). Free memory was 98.8 MB in the beginning and 364.1 MB in the end (delta: -265.3 MB). Peak memory consumption was 502.9 MB. Max. memory is 7.1 GB. [2020-07-21 11:30:18,177 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 136.8 MB. Free memory was 118.6 MB in the beginning and 118.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-21 11:30:18,178 INFO L168 Benchmark]: CACSL2BoogieTranslator took 757.08 ms. Allocated memory was 136.8 MB in the beginning and 204.5 MB in the end (delta: 67.6 MB). Free memory was 98.3 MB in the beginning and 170.9 MB in the end (delta: -72.6 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. [2020-07-21 11:30:18,178 INFO L168 Benchmark]: Boogie Preprocessor took 110.23 ms. Allocated memory is still 204.5 MB. Free memory was 170.9 MB in the beginning and 166.6 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-07-21 11:30:18,179 INFO L168 Benchmark]: RCFGBuilder took 1353.09 ms. Allocated memory was 204.5 MB in the beginning and 233.8 MB in the end (delta: 29.4 MB). Free memory was 166.6 MB in the beginning and 182.4 MB in the end (delta: -15.8 MB). Peak memory consumption was 87.3 MB. Max. memory is 7.1 GB. [2020-07-21 11:30:18,180 INFO L168 Benchmark]: TraceAbstraction took 52772.62 ms. Allocated memory was 233.8 MB in the beginning and 620.8 MB in the end (delta: 386.9 MB). Free memory was 180.9 MB in the beginning and 364.1 MB in the end (delta: -183.2 MB). Peak memory consumption was 488.0 MB. Max. memory is 7.1 GB. [2020-07-21 11:30:18,183 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 136.8 MB. Free memory was 118.6 MB in the beginning and 118.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 757.08 ms. Allocated memory was 136.8 MB in the beginning and 204.5 MB in the end (delta: 67.6 MB). Free memory was 98.3 MB in the beginning and 170.9 MB in the end (delta: -72.6 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.23 ms. Allocated memory is still 204.5 MB. Free memory was 170.9 MB in the beginning and 166.6 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1353.09 ms. Allocated memory was 204.5 MB in the beginning and 233.8 MB in the end (delta: 29.4 MB). Free memory was 166.6 MB in the beginning and 182.4 MB in the end (delta: -15.8 MB). Peak memory consumption was 87.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 52772.62 ms. Allocated memory was 233.8 MB in the beginning and 620.8 MB in the end (delta: 386.9 MB). Free memory was 180.9 MB in the beginning and 364.1 MB in the end (delta: -183.2 MB). Peak memory consumption was 488.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 169]: 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 Derived loop invariant: ((((((((9 <= a19 && a19 <= \old(a19)) || a10 <= 1) || !(\old(a10) <= 0)) || !(23 == \old(a1))) || (a19 <= 9 && 4 <= a10)) || !(9 <= \old(a19))) || (a19 <= 8 && a1 <= 38)) || (a19 <= 9 && a10 <= 2)) || !(\old(a19) <= 9) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 50.1s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 28.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 590 SDtfs, 2807 SDslu, 327 SDs, 0 SdLazy, 8164 SolverSat, 1280 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4128 GetRequests, 4057 SyntacticMatches, 7 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 28.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2962occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 12 MinimizatonAttempts, 2821 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 146 PreInvPairs, 202 NumberOfFragments, 295 HoareAnnotationTreeSize, 146 FomulaSimplifications, 8462 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8929 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 16.9s InterpolantComputationTime, 2804 NumberOfCodeBlocks, 2804 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 3843 ConstructedInterpolants, 63 QuantifiedInterpolants, 4064885 SizeOfPredicates, 23 NumberOfNonLiveVariables, 4804 ConjunctsInSsa, 85 ConjunctsInUnsatCore, 15 InterpolantComputations, 9 PerfectInterpolantSequences, 3287/3613 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...