/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_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 11:37:01,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 11:37:01,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 11:37:01,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 11:37:01,887 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 11:37:01,888 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 11:37:01,890 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 11:37:01,892 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 11:37:01,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 11:37:01,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 11:37:01,895 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 11:37:01,896 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 11:37:01,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 11:37:01,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 11:37:01,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 11:37:01,900 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 11:37:01,901 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 11:37:01,902 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 11:37:01,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 11:37:01,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 11:37:01,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 11:37:01,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 11:37:01,909 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 11:37:01,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 11:37:01,912 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 11:37:01,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 11:37:01,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 11:37:01,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 11:37:01,922 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 [2020-07-20 11:37:01,936 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 11:37:01,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 11:37:01,938 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 11:37:01,938 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 11:37:01,938 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 11:37:01,938 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 11:37:01,939 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 11:37:01,939 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 11:37:01,939 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 11:37:01,939 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 11:37:01,939 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 11:37:01,939 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 11:37:01,940 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 11:37:01,940 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 11:37:01,940 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 11:37:01,940 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 11:37:01,940 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 11:37:01,941 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 11:37:01,941 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 11:37:01,941 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 11:37:01,941 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 11:37:01,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 11:37:01,942 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 11:37:01,942 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 11:37:01,942 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 11:37:01,942 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 11:37:01,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:01,943 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 11:37:01,943 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 11:37:01,943 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 [2020-07-20 11:37:02,203 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 11:37:02,218 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 11:37:02,221 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 11:37:02,223 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 11:37:02,225 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 11:37:02,227 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label05.c [2020-07-20 11:37:02,302 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7d94037c/33bd2d81675343a9ac4b14ab5b939ad6/FLAG47f104b3c [2020-07-20 11:37:02,853 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 11:37:02,854 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label05.c [2020-07-20 11:37:02,866 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7d94037c/33bd2d81675343a9ac4b14ab5b939ad6/FLAG47f104b3c [2020-07-20 11:37:03,145 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7d94037c/33bd2d81675343a9ac4b14ab5b939ad6 [2020-07-20 11:37:03,153 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 11:37:03,156 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 11:37:03,157 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 11:37:03,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 11:37:03,161 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 11:37:03,162 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:37:03" (1/1) ... [2020-07-20 11:37:03,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33761369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:37:03, skipping insertion in model container [2020-07-20 11:37:03,167 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:37:03" (1/1) ... [2020-07-20 11:37:03,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 11:37:03,243 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 11:37:03,794 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:37:03,798 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 11:37:03,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:37:03,954 INFO L208 MainTranslator]: Completed translation [2020-07-20 11:37:03,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:37:03 WrapperNode [2020-07-20 11:37:03,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 11:37:03,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 11:37:03,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 11:37:03,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 11:37:03,967 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:37:03" (1/1) ... [2020-07-20 11:37:03,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:37:03" (1/1) ... [2020-07-20 11:37:03,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:37:03" (1/1) ... [2020-07-20 11:37:03,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:37:03" (1/1) ... [2020-07-20 11:37:04,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:37:03" (1/1) ... [2020-07-20 11:37:04,074 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:37:03" (1/1) ... [2020-07-20 11:37:04,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:37:03" (1/1) ... [2020-07-20 11:37:04,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 11:37:04,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 11:37:04,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 11:37:04,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 11:37:04,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:37:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 11:37:04,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 11:37:04,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 11:37:04,182 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 11:37:04,182 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 11:37:04,182 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 11:37:04,183 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 11:37:04,183 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 11:37:04,184 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 11:37:04,184 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 11:37:04,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 11:37:04,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 11:37:05,418 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 11:37:05,419 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 11:37:05,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:37:05 BoogieIcfgContainer [2020-07-20 11:37:05,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 11:37:05,426 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 11:37:05,427 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 11:37:05,430 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 11:37:05,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 11:37:03" (1/3) ... [2020-07-20 11:37:05,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d5098ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:37:05, skipping insertion in model container [2020-07-20 11:37:05,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:37:03" (2/3) ... [2020-07-20 11:37:05,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d5098ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:37:05, skipping insertion in model container [2020-07-20 11:37:05,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:37:05" (3/3) ... [2020-07-20 11:37:05,434 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label05.c [2020-07-20 11:37:05,444 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 11:37:05,453 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 11:37:05,468 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 11:37:05,495 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 11:37:05,495 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 11:37:05,496 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 11:37:05,496 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 11:37:05,498 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 11:37:05,498 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 11:37:05,499 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 11:37:05,499 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 11:37:05,531 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-20 11:37:05,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-20 11:37:05,547 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:37:05,549 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] [2020-07-20 11:37:05,549 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:37:05,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:37:05,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1575146953, now seen corresponding path program 1 times [2020-07-20 11:37:05,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:37:05,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [966472333] [2020-07-20 11:37:05,571 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 [2020-07-20 11:37:05,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:37:05,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:37:05,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:37:05,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:37:05,785 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:37:05,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [966472333] [2020-07-20 11:37:05,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:37:05,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:37:05,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238772148] [2020-07-20 11:37:05,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:37:05,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:37:05,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:37:05,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:37:05,813 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-20 11:37:06,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:37:06,838 INFO L93 Difference]: Finished difference Result 586 states and 1004 transitions. [2020-07-20 11:37:06,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:37:06,840 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2020-07-20 11:37:06,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:37:06,858 INFO L225 Difference]: With dead ends: 586 [2020-07-20 11:37:06,858 INFO L226 Difference]: Without dead ends: 294 [2020-07-20 11:37:06,865 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:37:06,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-20 11:37:06,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-20 11:37:06,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-20 11:37:06,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 426 transitions. [2020-07-20 11:37:06,940 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 426 transitions. Word has length 58 [2020-07-20 11:37:06,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:37:06,942 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 426 transitions. [2020-07-20 11:37:06,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:37:06,942 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 426 transitions. [2020-07-20 11:37:06,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-20 11:37:06,959 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:37:06,960 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:37:07,173 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:07,174 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:37:07,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:37:07,175 INFO L82 PathProgramCache]: Analyzing trace with hash -2054791822, now seen corresponding path program 1 times [2020-07-20 11:37:07,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:37:07,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1223441238] [2020-07-20 11:37:07,176 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 [2020-07-20 11:37:07,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:37:07,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:37:07,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:37:07,318 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:37:07,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:37:07,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1223441238] [2020-07-20 11:37:07,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:37:07,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 11:37:07,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148357736] [2020-07-20 11:37:07,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 11:37:07,322 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:37:07,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 11:37:07,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:37:07,323 INFO L87 Difference]: Start difference. First operand 294 states and 426 transitions. Second operand 5 states. [2020-07-20 11:37:08,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:37:08,316 INFO L93 Difference]: Finished difference Result 890 states and 1316 transitions. [2020-07-20 11:37:08,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 11:37:08,319 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 132 [2020-07-20 11:37:08,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:37:08,326 INFO L225 Difference]: With dead ends: 890 [2020-07-20 11:37:08,326 INFO L226 Difference]: Without dead ends: 602 [2020-07-20 11:37:08,336 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 11:37:08,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2020-07-20 11:37:08,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 590. [2020-07-20 11:37:08,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 590 states. [2020-07-20 11:37:08,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 775 transitions. [2020-07-20 11:37:08,381 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 775 transitions. Word has length 132 [2020-07-20 11:37:08,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:37:08,381 INFO L479 AbstractCegarLoop]: Abstraction has 590 states and 775 transitions. [2020-07-20 11:37:08,381 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 11:37:08,382 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 775 transitions. [2020-07-20 11:37:08,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-20 11:37:08,385 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:37:08,385 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:37:08,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:08,599 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:37:08,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:37:08,600 INFO L82 PathProgramCache]: Analyzing trace with hash -2085474635, now seen corresponding path program 1 times [2020-07-20 11:37:08,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:37:08,602 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [227900797] [2020-07-20 11:37:08,602 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 [2020-07-20 11:37:08,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:37:08,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:37:08,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:37:08,731 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:37:08,731 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:37:08,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [227900797] [2020-07-20 11:37:08,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:37:08,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:37:08,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333846948] [2020-07-20 11:37:08,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:37:08,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:37:08,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:37:08,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:37:08,734 INFO L87 Difference]: Start difference. First operand 590 states and 775 transitions. Second operand 3 states. [2020-07-20 11:37:09,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:37:09,440 INFO L93 Difference]: Finished difference Result 1025 states and 1394 transitions. [2020-07-20 11:37:09,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:37:09,445 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2020-07-20 11:37:09,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:37:09,453 INFO L225 Difference]: With dead ends: 1025 [2020-07-20 11:37:09,453 INFO L226 Difference]: Without dead ends: 1023 [2020-07-20 11:37:09,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:37:09,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2020-07-20 11:37:09,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 1023. [2020-07-20 11:37:09,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1023 states. [2020-07-20 11:37:09,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1392 transitions. [2020-07-20 11:37:09,521 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1392 transitions. Word has length 137 [2020-07-20 11:37:09,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:37:09,521 INFO L479 AbstractCegarLoop]: Abstraction has 1023 states and 1392 transitions. [2020-07-20 11:37:09,522 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:37:09,522 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1392 transitions. [2020-07-20 11:37:09,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-07-20 11:37:09,527 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:37:09,527 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:37:09,741 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:09,742 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:37:09,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:37:09,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1012567534, now seen corresponding path program 1 times [2020-07-20 11:37:09,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:37:09,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1457457122] [2020-07-20 11:37:09,744 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 [2020-07-20 11:37:09,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:37:09,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:37:09,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:37:09,939 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:37:09,939 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:37:09,939 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1457457122] [2020-07-20 11:37:09,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:37:09,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 11:37:09,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731520407] [2020-07-20 11:37:09,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 11:37:09,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:37:09,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 11:37:09,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:37:09,942 INFO L87 Difference]: Start difference. First operand 1023 states and 1392 transitions. Second operand 5 states. [2020-07-20 11:37:10,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:37:10,913 INFO L93 Difference]: Finished difference Result 2650 states and 3703 transitions. [2020-07-20 11:37:10,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 11:37:10,914 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 180 [2020-07-20 11:37:10,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:37:10,925 INFO L225 Difference]: With dead ends: 2650 [2020-07-20 11:37:10,925 INFO L226 Difference]: Without dead ends: 1633 [2020-07-20 11:37:10,928 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 11:37:10,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2020-07-20 11:37:10,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1470. [2020-07-20 11:37:10,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1470 states. [2020-07-20 11:37:10,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 1920 transitions. [2020-07-20 11:37:10,995 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 1920 transitions. Word has length 180 [2020-07-20 11:37:10,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:37:10,996 INFO L479 AbstractCegarLoop]: Abstraction has 1470 states and 1920 transitions. [2020-07-20 11:37:10,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 11:37:10,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 1920 transitions. [2020-07-20 11:37:11,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-07-20 11:37:11,003 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:37:11,003 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, 2, 2, 2, 2, 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] [2020-07-20 11:37:11,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:11,218 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:37:11,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:37:11,219 INFO L82 PathProgramCache]: Analyzing trace with hash 803623392, now seen corresponding path program 1 times [2020-07-20 11:37:11,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:37:11,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1911393370] [2020-07-20 11:37:11,220 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 [2020-07-20 11:37:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:37:11,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:37:11,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:37:11,409 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:37:11,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:37:11,564 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:37:11,565 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1911393370] [2020-07-20 11:37:11,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:37:11,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 11:37:11,566 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531580956] [2020-07-20 11:37:11,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 11:37:11,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:37:11,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 11:37:11,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:37:11,567 INFO L87 Difference]: Start difference. First operand 1470 states and 1920 transitions. Second operand 7 states. [2020-07-20 11:37:12,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:37:12,994 INFO L93 Difference]: Finished difference Result 3816 states and 5119 transitions. [2020-07-20 11:37:12,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-20 11:37:12,994 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 219 [2020-07-20 11:37:12,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:37:13,011 INFO L225 Difference]: With dead ends: 3816 [2020-07-20 11:37:13,011 INFO L226 Difference]: Without dead ends: 2352 [2020-07-20 11:37:13,017 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 433 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-20 11:37:13,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2352 states. [2020-07-20 11:37:13,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2352 to 2201. [2020-07-20 11:37:13,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2201 states. [2020-07-20 11:37:13,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2201 states to 2201 states and 2782 transitions. [2020-07-20 11:37:13,100 INFO L78 Accepts]: Start accepts. Automaton has 2201 states and 2782 transitions. Word has length 219 [2020-07-20 11:37:13,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:37:13,101 INFO L479 AbstractCegarLoop]: Abstraction has 2201 states and 2782 transitions. [2020-07-20 11:37:13,101 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 11:37:13,102 INFO L276 IsEmpty]: Start isEmpty. Operand 2201 states and 2782 transitions. [2020-07-20 11:37:13,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-07-20 11:37:13,107 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:37:13,107 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, 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] [2020-07-20 11:37:13,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:13,321 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:37:13,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:37:13,322 INFO L82 PathProgramCache]: Analyzing trace with hash 534892677, now seen corresponding path program 1 times [2020-07-20 11:37:13,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:37:13,323 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1852229546] [2020-07-20 11:37:13,324 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 [2020-07-20 11:37:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:37:13,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:37:13,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:37:13,492 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 170 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:37:13,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:37:13,618 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 170 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:37:13,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1852229546] [2020-07-20 11:37:13,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:37:13,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 11:37:13,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219500313] [2020-07-20 11:37:13,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 11:37:13,623 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:37:13,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 11:37:13,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:37:13,624 INFO L87 Difference]: Start difference. First operand 2201 states and 2782 transitions. Second operand 6 states. [2020-07-20 11:37:14,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:37:14,557 INFO L93 Difference]: Finished difference Result 4849 states and 6224 transitions. [2020-07-20 11:37:14,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 11:37:14,562 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 226 [2020-07-20 11:37:14,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:37:14,580 INFO L225 Difference]: With dead ends: 4849 [2020-07-20 11:37:14,581 INFO L226 Difference]: Without dead ends: 2654 [2020-07-20 11:37:14,587 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 446 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:37:14,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2654 states. [2020-07-20 11:37:14,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2654 to 2646. [2020-07-20 11:37:14,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2646 states. [2020-07-20 11:37:14,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2646 states to 2646 states and 3363 transitions. [2020-07-20 11:37:14,697 INFO L78 Accepts]: Start accepts. Automaton has 2646 states and 3363 transitions. Word has length 226 [2020-07-20 11:37:14,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:37:14,698 INFO L479 AbstractCegarLoop]: Abstraction has 2646 states and 3363 transitions. [2020-07-20 11:37:14,698 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 11:37:14,698 INFO L276 IsEmpty]: Start isEmpty. Operand 2646 states and 3363 transitions. [2020-07-20 11:37:14,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-07-20 11:37:14,703 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:37:14,704 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, 2, 2, 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] [2020-07-20 11:37:14,916 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:14,917 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:37:14,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:37:14,918 INFO L82 PathProgramCache]: Analyzing trace with hash 313316900, now seen corresponding path program 1 times [2020-07-20 11:37:14,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:37:14,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1936370095] [2020-07-20 11:37:14,919 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 [2020-07-20 11:37:15,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:37:15,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:37:15,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:37:15,071 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-07-20 11:37:15,071 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:37:15,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1936370095] [2020-07-20 11:37:15,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:37:15,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:37:15,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697032294] [2020-07-20 11:37:15,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:37:15,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:37:15,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:37:15,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:37:15,073 INFO L87 Difference]: Start difference. First operand 2646 states and 3363 transitions. Second operand 3 states. [2020-07-20 11:37:15,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:37:15,658 INFO L93 Difference]: Finished difference Result 5286 states and 6729 transitions. [2020-07-20 11:37:15,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:37:15,659 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 233 [2020-07-20 11:37:15,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:37:15,670 INFO L225 Difference]: With dead ends: 5286 [2020-07-20 11:37:15,671 INFO L226 Difference]: Without dead ends: 2646 [2020-07-20 11:37:15,677 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:37:15,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2646 states. [2020-07-20 11:37:15,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2646 to 2215. [2020-07-20 11:37:15,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2215 states. [2020-07-20 11:37:15,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2215 states to 2215 states and 2632 transitions. [2020-07-20 11:37:15,738 INFO L78 Accepts]: Start accepts. Automaton has 2215 states and 2632 transitions. Word has length 233 [2020-07-20 11:37:15,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:37:15,738 INFO L479 AbstractCegarLoop]: Abstraction has 2215 states and 2632 transitions. [2020-07-20 11:37:15,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:37:15,739 INFO L276 IsEmpty]: Start isEmpty. Operand 2215 states and 2632 transitions. [2020-07-20 11:37:15,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-07-20 11:37:15,744 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:37:15,744 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, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 11:37:15,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:15,959 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:37:15,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:37:15,960 INFO L82 PathProgramCache]: Analyzing trace with hash 458875857, now seen corresponding path program 1 times [2020-07-20 11:37:15,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:37:15,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1268835083] [2020-07-20 11:37:15,960 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 [2020-07-20 11:37:16,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:37:16,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:37:16,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:37:16,131 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-07-20 11:37:16,132 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:37:16,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1268835083] [2020-07-20 11:37:16,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:37:16,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:37:16,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253216150] [2020-07-20 11:37:16,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:37:16,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:37:16,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:37:16,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:37:16,134 INFO L87 Difference]: Start difference. First operand 2215 states and 2632 transitions. Second operand 3 states. [2020-07-20 11:37:16,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:37:16,767 INFO L93 Difference]: Finished difference Result 2646 states and 3150 transitions. [2020-07-20 11:37:16,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:37:16,768 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 236 [2020-07-20 11:37:16,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:37:16,769 INFO L225 Difference]: With dead ends: 2646 [2020-07-20 11:37:16,769 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 11:37:16,774 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:37:16,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 11:37:16,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 11:37:16,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 11:37:16,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 11:37:16,775 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 236 [2020-07-20 11:37:16,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:37:16,775 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 11:37:16,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:37:16,775 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 11:37:16,776 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 11:37:16,988 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:37:16,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 11:37:17,833 WARN L193 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 54 [2020-07-20 11:37:18,013 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 36 [2020-07-20 11:37:18,218 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 36 [2020-07-20 11:37:18,222 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:37:18,223 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (<= ~a19~0 |old(~a19~0)|)) [2020-07-20 11:37:18,223 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:37:18,223 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-20 11:37:18,223 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,223 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,223 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,224 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,224 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,224 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,224 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-20 11:37:18,224 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-20 11:37:18,224 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-20 11:37:18,224 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-20 11:37:18,224 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-20 11:37:18,225 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-20 11:37:18,225 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-20 11:37:18,225 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-20 11:37:18,225 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-20 11:37:18,225 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-20 11:37:18,225 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-20 11:37:18,225 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,225 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,225 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,226 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,226 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,226 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-20 11:37:18,226 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-20 11:37:18,226 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-20 11:37:18,226 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-20 11:37:18,226 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-20 11:37:18,227 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-20 11:37:18,227 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-20 11:37:18,227 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-20 11:37:18,227 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-20 11:37:18,227 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-20 11:37:18,227 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-20 11:37:18,227 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-20 11:37:18,228 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-20 11:37:18,228 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 160) no Hoare annotation was computed. [2020-07-20 11:37:18,228 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-20 11:37:18,228 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,228 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,228 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,228 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,229 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,229 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-20 11:37:18,229 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-20 11:37:18,229 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-20 11:37:18,229 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-20 11:37:18,229 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-20 11:37:18,229 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-20 11:37:18,229 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-20 11:37:18,230 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-20 11:37:18,230 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-20 11:37:18,230 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-20 11:37:18,230 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,230 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,230 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,230 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,230 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,231 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-20 11:37:18,231 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-20 11:37:18,231 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-20 11:37:18,231 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-20 11:37:18,231 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-20 11:37:18,231 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-20 11:37:18,231 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-20 11:37:18,232 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-20 11:37:18,232 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-20 11:37:18,232 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-20 11:37:18,232 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-20 11:37:18,232 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-20 11:37:18,232 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-20 11:37:18,232 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,232 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,233 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,233 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,233 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,233 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-20 11:37:18,233 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-20 11:37:18,233 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-20 11:37:18,233 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-20 11:37:18,233 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-20 11:37:18,234 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-20 11:37:18,234 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-20 11:37:18,234 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-20 11:37:18,234 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-20 11:37:18,234 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,234 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,234 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,234 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,235 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,235 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,235 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,235 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-20 11:37:18,235 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-20 11:37:18,235 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-20 11:37:18,235 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-20 11:37:18,235 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-20 11:37:18,236 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-20 11:37:18,236 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-20 11:37:18,236 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-20 11:37:18,236 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-20 11:37:18,236 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-20 11:37:18,236 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-20 11:37:18,236 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-20 11:37:18,236 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-20 11:37:18,236 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,237 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,237 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,237 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,237 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-20 11:37:18,237 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,237 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,237 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-20 11:37:18,237 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-20 11:37:18,237 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-20 11:37:18,238 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-20 11:37:18,238 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-20 11:37:18,238 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-20 11:37:18,238 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-20 11:37:18,238 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-20 11:37:18,238 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-20 11:37:18,238 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-20 11:37:18,238 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-20 11:37:18,238 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-20 11:37:18,238 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-20 11:37:18,238 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,238 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,238 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,238 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,239 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,239 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,239 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-20 11:37:18,239 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-20 11:37:18,239 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-20 11:37:18,239 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-20 11:37:18,239 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-20 11:37:18,239 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-20 11:37:18,239 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-20 11:37:18,239 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-20 11:37:18,240 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-20 11:37:18,240 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-20 11:37:18,240 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-20 11:37:18,240 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse0 (not (<= |old(~a1~0)| 23))) (.cse9 (<= ~a1~0 23)) (.cse6 (<= 2 ~a10~0)) (.cse12 (<= 8 ~a19~0)) (.cse10 (not (<= 8 |old(~a19~0)|))) (.cse7 (not (< |old(~a10~0)| 4))) (.cse3 (not (<= |old(~a19~0)| 9))) (.cse8 (not (<= 2 |old(~a10~0)|))) (.cse4 (<= ~a10~0 |old(~a10~0)|)) (.cse1 (<= 7 ~a19~0)) (.cse5 (<= ~a19~0 |old(~a19~0)|)) (.cse2 (not (<= 7 |old(~a19~0)|))) (.cse11 (not (<= |old(~a10~0)| 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (and .cse4 .cse5 .cse6) .cse7 .cse3 .cse8) (or .cse0 .cse9 .cse10 .cse11) (or (and .cse4 .cse9 .cse5) .cse0 (not (<= |old(~a10~0)| 0))) (or (and .cse4 .cse12 .cse5 .cse6) .cse10 .cse3 .cse8) (or .cse0 (and .cse4 .cse9 .cse5 .cse6) .cse3 .cse8) (or .cse12 .cse10 .cse11) (or .cse1 .cse2 .cse7 .cse3 .cse8) (or (and .cse4 .cse1 .cse5) .cse2 .cse11))) [2020-07-20 11:37:18,240 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-20 11:37:18,240 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-20 11:37:18,240 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-20 11:37:18,240 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,241 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,241 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,241 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,241 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,241 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,241 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-20 11:37:18,241 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-20 11:37:18,241 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-20 11:37:18,241 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-20 11:37:18,241 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-20 11:37:18,241 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-20 11:37:18,242 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-20 11:37:18,242 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-20 11:37:18,242 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-20 11:37:18,242 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-20 11:37:18,242 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-20 11:37:18,242 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-20 11:37:18,242 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-20 11:37:18,242 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,242 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,242 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,243 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,243 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,243 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,243 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-20 11:37:18,243 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-20 11:37:18,243 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-20 11:37:18,243 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-20 11:37:18,243 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-20 11:37:18,243 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-20 11:37:18,244 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-20 11:37:18,244 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-20 11:37:18,244 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-20 11:37:18,244 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-20 11:37:18,244 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-20 11:37:18,244 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-20 11:37:18,244 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,244 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,244 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,244 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,244 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,244 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:37:18,244 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-20 11:37:18,244 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-20 11:37:18,245 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-20 11:37:18,245 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-20 11:37:18,245 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-20 11:37:18,245 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-20 11:37:18,245 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-20 11:37:18,245 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-20 11:37:18,245 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-20 11:37:18,245 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-20 11:37:18,245 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-20 11:37:18,245 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-20 11:37:18,245 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:37:18,245 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= ~a19~0 9) (<= 8 ~a19~0) (<= ~a1~0 23)) [2020-07-20 11:37:18,245 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 11:37:18,246 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:37:18,246 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (and (<= ~a10~0 |old(~a10~0)|) (<= 8 ~a19~0) (<= ~a1~0 23) (<= ~a19~0 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a10~0)| 0)) (not (<= 8 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9))) [2020-07-20 11:37:18,246 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-20 11:37:18,246 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (<= ~a1~0 23)) (.cse1 (<= ~a19~0 9)) (.cse2 (<= 2 ~a10~0))) (or (and (<= ~a10~0 1) (<= 7 ~a19~0)) (not (<= |old(~a1~0)| 23)) (and (<= ~a10~0 0) .cse0) (not (<= |old(~a10~0)| 0)) (not (<= 8 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9)) (and .cse1 .cse0 .cse2) (and .cse1 (<= 8 ~a19~0)) (and .cse1 .cse2 (< ~a10~0 4)))) [2020-07-20 11:37:18,246 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-20 11:37:18,246 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-20 11:37:18,246 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (<= ~a1~0 23)) (.cse1 (<= ~a19~0 9)) (.cse2 (<= 2 ~a10~0))) (or (and (<= ~a10~0 1) (<= 7 ~a19~0)) (not (<= |old(~a1~0)| 23)) (and (<= ~a10~0 0) .cse0) (not (<= |old(~a10~0)| 0)) (not (<= 8 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9)) (and .cse1 .cse0 .cse2) (and .cse1 (<= 8 ~a19~0)) (and .cse1 .cse2 (< ~a10~0 4)))) [2020-07-20 11:37:18,246 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-20 11:37:18,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 11:37:18 BoogieIcfgContainer [2020-07-20 11:37:18,265 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 11:37:18,267 INFO L168 Benchmark]: Toolchain (without parser) took 15112.03 ms. Allocated memory was 137.9 MB in the beginning and 428.9 MB in the end (delta: 291.0 MB). Free memory was 100.7 MB in the beginning and 356.3 MB in the end (delta: -255.6 MB). Peak memory consumption was 307.9 MB. Max. memory is 7.1 GB. [2020-07-20 11:37:18,268 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 11:37:18,269 INFO L168 Benchmark]: CACSL2BoogieTranslator took 798.03 ms. Allocated memory was 137.9 MB in the beginning and 203.9 MB in the end (delta: 66.1 MB). Free memory was 100.3 MB in the beginning and 169.9 MB in the end (delta: -69.6 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. [2020-07-20 11:37:18,270 INFO L168 Benchmark]: Boogie Preprocessor took 144.64 ms. Allocated memory is still 203.9 MB. Free memory was 169.9 MB in the beginning and 164.8 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-07-20 11:37:18,270 INFO L168 Benchmark]: RCFGBuilder took 1324.77 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 164.8 MB in the beginning and 181.2 MB in the end (delta: -16.4 MB). Peak memory consumption was 83.5 MB. Max. memory is 7.1 GB. [2020-07-20 11:37:18,271 INFO L168 Benchmark]: TraceAbstraction took 12838.86 ms. Allocated memory was 235.9 MB in the beginning and 428.9 MB in the end (delta: 192.9 MB). Free memory was 179.7 MB in the beginning and 356.3 MB in the end (delta: -176.6 MB). Peak memory consumption was 288.9 MB. Max. memory is 7.1 GB. [2020-07-20 11:37:18,275 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 798.03 ms. Allocated memory was 137.9 MB in the beginning and 203.9 MB in the end (delta: 66.1 MB). Free memory was 100.3 MB in the beginning and 169.9 MB in the end (delta: -69.6 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 144.64 ms. Allocated memory is still 203.9 MB. Free memory was 169.9 MB in the beginning and 164.8 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1324.77 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 164.8 MB in the beginning and 181.2 MB in the end (delta: -16.4 MB). Peak memory consumption was 83.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12838.86 ms. Allocated memory was 235.9 MB in the beginning and 428.9 MB in the end (delta: 192.9 MB). Free memory was 179.7 MB in the beginning and 356.3 MB in the end (delta: -176.6 MB). Peak memory consumption was 288.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 160]: 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: ((((((((a10 <= 1 && 7 <= a19) || !(\old(a1) <= 23)) || (a10 <= 0 && a1 <= 23)) || !(\old(a10) <= 0)) || !(8 <= \old(a19))) || !(\old(a19) <= 9)) || ((a19 <= 9 && a1 <= 23) && 2 <= a10)) || (a19 <= 9 && 8 <= a19)) || ((a19 <= 9 && 2 <= a10) && a10 < 4) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.4s, OverallIterations: 8, TraceHistogramMax: 3, AutomataDifference: 7.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 376 SDtfs, 2370 SDslu, 191 SDs, 0 SdLazy, 4084 SolverSat, 1054 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1875 GetRequests, 1839 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2646occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 765 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 77 PreInvPairs, 113 NumberOfFragments, 345 HoareAnnotationTreeSize, 77 FomulaSimplifications, 1772 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1484 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1421 NumberOfCodeBlocks, 1421 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1856 ConstructedInterpolants, 0 QuantifiedInterpolants, 824932 SizeOfPredicates, 11 NumberOfNonLiveVariables, 2638 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 1214/1222 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...