/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_label38.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 11:30:19,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 11:30:19,720 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 11:30:19,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 11:30:19,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 11:30:19,734 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 11:30:19,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 11:30:19,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 11:30:19,739 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 11:30:19,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 11:30:19,741 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 11:30:19,742 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 11:30:19,742 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 11:30:19,743 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 11:30:19,744 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 11:30:19,745 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 11:30:19,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 11:30:19,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 11:30:19,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 11:30:19,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 11:30:19,754 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 11:30:19,755 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 11:30:19,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 11:30:19,757 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 11:30:19,759 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 11:30:19,767 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 11:30:19,768 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 11:30:19,768 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 11:30:19,769 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 11:30:19,783 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 11:30:19,784 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 11:30:19,785 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 11:30:19,785 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 11:30:19,785 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 11:30:19,785 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 11:30:19,786 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 11:30:19,786 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 11:30:19,786 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 11:30:19,786 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 11:30:19,786 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 11:30:19,787 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 11:30:19,787 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 11:30:19,787 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 11:30:19,787 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 11:30:19,787 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 11:30:19,787 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 11:30:19,788 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 11:30:19,788 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 11:30:19,788 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 11:30:19,788 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 11:30:19,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:30:19,789 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 11:30:19,789 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 11:30:19,789 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 11:30:19,789 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 11:30:19,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:30:19,790 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 11:30:19,790 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 11:30:19,790 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-21 11:30:20,064 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 11:30:20,085 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 11:30:20,088 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 11:30:20,090 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 11:30:20,094 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 11:30:20,095 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label38.c [2020-07-21 11:30:20,176 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caab42ff6/e044258fd0de4f319608798f6a027d65/FLAG2579c0332 [2020-07-21 11:30:20,693 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 11:30:20,694 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label38.c [2020-07-21 11:30:20,707 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caab42ff6/e044258fd0de4f319608798f6a027d65/FLAG2579c0332 [2020-07-21 11:30:20,996 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caab42ff6/e044258fd0de4f319608798f6a027d65 [2020-07-21 11:30:21,004 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 11:30:21,007 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 11:30:21,008 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 11:30:21,008 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 11:30:21,011 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 11:30:21,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:30:20" (1/1) ... [2020-07-21 11:30:21,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65a5b008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:30:21, skipping insertion in model container [2020-07-21 11:30:21,016 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:30:20" (1/1) ... [2020-07-21 11:30:21,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 11:30:21,083 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 11:30:21,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:30:21,613 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 11:30:21,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:30:21,729 INFO L208 MainTranslator]: Completed translation [2020-07-21 11:30:21,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:30:21 WrapperNode [2020-07-21 11:30:21,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 11:30:21,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 11:30:21,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 11:30:21,731 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 11:30:21,741 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:30:21" (1/1) ... [2020-07-21 11:30:21,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:30:21" (1/1) ... [2020-07-21 11:30:21,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:30:21" (1/1) ... [2020-07-21 11:30:21,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:30:21" (1/1) ... [2020-07-21 11:30:21,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:30:21" (1/1) ... [2020-07-21 11:30:21,821 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:30:21" (1/1) ... [2020-07-21 11:30:21,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:30:21" (1/1) ... [2020-07-21 11:30:21,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 11:30:21,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 11:30:21,839 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 11:30:21,839 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 11:30:21,840 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:30:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:30:21,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 11:30:21,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 11:30:21,896 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 11:30:21,896 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 11:30:21,896 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 11:30:21,896 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 11:30:21,896 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 11:30:21,896 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 11:30:21,896 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 11:30:21,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 11:30:21,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 11:30:23,157 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 11:30:23,158 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 11:30:23,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:30:23 BoogieIcfgContainer [2020-07-21 11:30:23,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 11:30:23,171 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 11:30:23,172 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 11:30:23,175 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 11:30:23,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:30:20" (1/3) ... [2020-07-21 11:30:23,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f55416f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:30:23, skipping insertion in model container [2020-07-21 11:30:23,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:30:21" (2/3) ... [2020-07-21 11:30:23,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f55416f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:30:23, skipping insertion in model container [2020-07-21 11:30:23,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:30:23" (3/3) ... [2020-07-21 11:30:23,180 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label38.c [2020-07-21 11:30:23,189 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 11:30:23,197 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 11:30:23,207 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 11:30:23,232 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 11:30:23,232 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 11:30:23,232 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 11:30:23,232 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 11:30:23,233 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 11:30:23,233 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 11:30:23,233 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 11:30:23,233 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 11:30:23,255 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-21 11:30:23,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-21 11:30:23,263 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:30:23,265 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] [2020-07-21 11:30:23,265 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:30:23,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:30:23,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1813043417, now seen corresponding path program 1 times [2020-07-21 11:30:23,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:30:23,278 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1138973347] [2020-07-21 11:30:23,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:30:23,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:30:23,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:30:23,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:30:23,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:30:23,473 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:30:23,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1138973347] [2020-07-21 11:30:23,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:30:23,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:30:23,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275048659] [2020-07-21 11:30:23,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:30:23,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:30:23,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:30:23,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:30:23,502 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-21 11:30:24,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:30:24,512 INFO L93 Difference]: Finished difference Result 586 states and 1004 transitions. [2020-07-21 11:30:24,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:30:24,514 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2020-07-21 11:30:24,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:30:24,530 INFO L225 Difference]: With dead ends: 586 [2020-07-21 11:30:24,530 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 11:30:24,537 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:30:24,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 11:30:24,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-21 11:30:24,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 11:30:24,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 426 transitions. [2020-07-21 11:30:24,605 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 426 transitions. Word has length 38 [2020-07-21 11:30:24,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:30:24,606 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 426 transitions. [2020-07-21 11:30:24,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:30:24,606 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 426 transitions. [2020-07-21 11:30:24,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-07-21 11:30:24,612 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:30:24,612 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:30:24,827 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:30:24,827 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:30:24,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:30:24,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1939889954, now seen corresponding path program 1 times [2020-07-21 11:30:24,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:30:24,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [20239008] [2020-07-21 11:30:24,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:30:24,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:30:24,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:30:24,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:30:24,962 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:30:24,962 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:30:24,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [20239008] [2020-07-21 11:30:24,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:30:24,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:30:24,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772290883] [2020-07-21 11:30:24,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:30:24,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:30:24,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:30:24,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:30:24,966 INFO L87 Difference]: Start difference. First operand 294 states and 426 transitions. Second operand 5 states. [2020-07-21 11:30:25,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:30:25,981 INFO L93 Difference]: Finished difference Result 890 states and 1316 transitions. [2020-07-21 11:30:25,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:30:25,984 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2020-07-21 11:30:25,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:30:25,996 INFO L225 Difference]: With dead ends: 890 [2020-07-21 11:30:25,996 INFO L226 Difference]: Without dead ends: 602 [2020-07-21 11:30:25,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:30:26,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2020-07-21 11:30:26,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 590. [2020-07-21 11:30:26,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 590 states. [2020-07-21 11:30:26,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 775 transitions. [2020-07-21 11:30:26,060 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 775 transitions. Word has length 112 [2020-07-21 11:30:26,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:30:26,061 INFO L479 AbstractCegarLoop]: Abstraction has 590 states and 775 transitions. [2020-07-21 11:30:26,061 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:30:26,061 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 775 transitions. [2020-07-21 11:30:26,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-07-21 11:30:26,066 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:30:26,066 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:30:26,282 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:30:26,282 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:30:26,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:30:26,283 INFO L82 PathProgramCache]: Analyzing trace with hash -444185243, now seen corresponding path program 1 times [2020-07-21 11:30:26,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:30:26,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1953916221] [2020-07-21 11:30:26,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:30:26,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:30:26,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:30:26,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:30:26,413 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:30:26,413 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:30:26,414 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1953916221] [2020-07-21 11:30:26,414 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:30:26,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:30:26,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358748672] [2020-07-21 11:30:26,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:30:26,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:30:26,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:30:26,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:30:26,419 INFO L87 Difference]: Start difference. First operand 590 states and 775 transitions. Second operand 3 states. [2020-07-21 11:30:27,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:30:27,106 INFO L93 Difference]: Finished difference Result 1462 states and 1992 transitions. [2020-07-21 11:30:27,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:30:27,107 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2020-07-21 11:30:27,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:30:27,113 INFO L225 Difference]: With dead ends: 1462 [2020-07-21 11:30:27,113 INFO L226 Difference]: Without dead ends: 878 [2020-07-21 11:30:27,115 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:30:27,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2020-07-21 11:30:27,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 878. [2020-07-21 11:30:27,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 878 states. [2020-07-21 11:30:27,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1157 transitions. [2020-07-21 11:30:27,150 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1157 transitions. Word has length 117 [2020-07-21 11:30:27,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:30:27,151 INFO L479 AbstractCegarLoop]: Abstraction has 878 states and 1157 transitions. [2020-07-21 11:30:27,151 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:30:27,151 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1157 transitions. [2020-07-21 11:30:27,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-21 11:30:27,156 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:30:27,156 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:30:27,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:30:27,370 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:30:27,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:30:27,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1165296197, now seen corresponding path program 1 times [2020-07-21 11:30:27,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:30:27,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [893755201] [2020-07-21 11:30:27,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:30:27,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:30:27,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:30:27,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:30:27,507 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:30:27,507 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:30:27,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [893755201] [2020-07-21 11:30:27,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:30:27,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:30:27,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374485177] [2020-07-21 11:30:27,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:30:27,510 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:30:27,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:30:27,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:30:27,511 INFO L87 Difference]: Start difference. First operand 878 states and 1157 transitions. Second operand 5 states. [2020-07-21 11:30:28,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:30:28,472 INFO L93 Difference]: Finished difference Result 2370 states and 3201 transitions. [2020-07-21 11:30:28,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:30:28,475 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2020-07-21 11:30:28,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:30:28,485 INFO L225 Difference]: With dead ends: 2370 [2020-07-21 11:30:28,485 INFO L226 Difference]: Without dead ends: 1498 [2020-07-21 11:30:28,489 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:30:28,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2020-07-21 11:30:28,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1470. [2020-07-21 11:30:28,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1470 states. [2020-07-21 11:30:28,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 1802 transitions. [2020-07-21 11:30:28,539 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 1802 transitions. Word has length 133 [2020-07-21 11:30:28,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:30:28,540 INFO L479 AbstractCegarLoop]: Abstraction has 1470 states and 1802 transitions. [2020-07-21 11:30:28,540 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:30:28,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 1802 transitions. [2020-07-21 11:30:28,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-07-21 11:30:28,543 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:30:28,543 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:30:28,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:30:28,757 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:30:28,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:30:28,758 INFO L82 PathProgramCache]: Analyzing trace with hash -916724074, now seen corresponding path program 1 times [2020-07-21 11:30:28,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:30:28,758 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1502172679] [2020-07-21 11:30:28,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:30:28,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:30:28,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:30:28,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:30:28,859 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:30:28,860 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:30:28,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1502172679] [2020-07-21 11:30:28,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:30:28,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:30:28,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398361518] [2020-07-21 11:30:28,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:30:28,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:30:28,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:30:28,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:30:28,862 INFO L87 Difference]: Start difference. First operand 1470 states and 1802 transitions. Second operand 3 states. [2020-07-21 11:30:29,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:30:29,525 INFO L93 Difference]: Finished difference Result 2197 states and 2747 transitions. [2020-07-21 11:30:29,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:30:29,530 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 134 [2020-07-21 11:30:29,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:30:29,551 INFO L225 Difference]: With dead ends: 2197 [2020-07-21 11:30:29,551 INFO L226 Difference]: Without dead ends: 2195 [2020-07-21 11:30:29,553 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:30:29,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2195 states. [2020-07-21 11:30:29,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2195 to 1909. [2020-07-21 11:30:29,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1909 states. [2020-07-21 11:30:29,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1909 states to 1909 states and 2415 transitions. [2020-07-21 11:30:29,623 INFO L78 Accepts]: Start accepts. Automaton has 1909 states and 2415 transitions. Word has length 134 [2020-07-21 11:30:29,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:30:29,623 INFO L479 AbstractCegarLoop]: Abstraction has 1909 states and 2415 transitions. [2020-07-21 11:30:29,624 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:30:29,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1909 states and 2415 transitions. [2020-07-21 11:30:29,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-07-21 11:30:29,628 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:30:29,628 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 11:30:29,842 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:30:29,843 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:30:29,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:30:29,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1370569995, now seen corresponding path program 1 times [2020-07-21 11:30:29,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:30:29,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [681327968] [2020-07-21 11:30:29,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:30:29,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:30:29,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:30:29,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:30:29,987 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 130 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:30:29,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:30:30,138 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 130 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:30:30,138 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [681327968] [2020-07-21 11:30:30,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:30:30,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 11:30:30,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521260995] [2020-07-21 11:30:30,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:30:30,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:30:30,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:30:30,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:30:30,141 INFO L87 Difference]: Start difference. First operand 1909 states and 2415 transitions. Second operand 6 states. [2020-07-21 11:30:31,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:30:31,124 INFO L93 Difference]: Finished difference Result 4414 states and 5721 transitions. [2020-07-21 11:30:31,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:30:31,125 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 206 [2020-07-21 11:30:31,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:30:31,142 INFO L225 Difference]: With dead ends: 4414 [2020-07-21 11:30:31,151 INFO L226 Difference]: Without dead ends: 2511 [2020-07-21 11:30:31,160 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 406 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:30:31,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2511 states. [2020-07-21 11:30:31,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2511 to 2358. [2020-07-21 11:30:31,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2358 states. [2020-07-21 11:30:31,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2358 states to 2358 states and 2988 transitions. [2020-07-21 11:30:31,246 INFO L78 Accepts]: Start accepts. Automaton has 2358 states and 2988 transitions. Word has length 206 [2020-07-21 11:30:31,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:30:31,247 INFO L479 AbstractCegarLoop]: Abstraction has 2358 states and 2988 transitions. [2020-07-21 11:30:31,247 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:30:31,247 INFO L276 IsEmpty]: Start isEmpty. Operand 2358 states and 2988 transitions. [2020-07-21 11:30:31,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-07-21 11:30:31,254 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:30:31,254 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 11:30:31,468 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:30:31,469 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:30:31,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:30:31,469 INFO L82 PathProgramCache]: Analyzing trace with hash 24797361, now seen corresponding path program 1 times [2020-07-21 11:30:31,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:30:31,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1807824566] [2020-07-21 11:30:31,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:30:31,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:30:31,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:30:31,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:30:31,619 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-07-21 11:30:31,619 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:30:31,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1807824566] [2020-07-21 11:30:31,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:30:31,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:30:31,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628785745] [2020-07-21 11:30:31,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:30:31,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:30:31,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:30:31,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:30:31,622 INFO L87 Difference]: Start difference. First operand 2358 states and 2988 transitions. Second operand 3 states. [2020-07-21 11:30:32,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:30:32,277 INFO L93 Difference]: Finished difference Result 3224 states and 4120 transitions. [2020-07-21 11:30:32,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:30:32,282 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2020-07-21 11:30:32,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:30:32,298 INFO L225 Difference]: With dead ends: 3224 [2020-07-21 11:30:32,298 INFO L226 Difference]: Without dead ends: 3222 [2020-07-21 11:30:32,302 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:30:32,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3222 states. [2020-07-21 11:30:32,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3222 to 2360. [2020-07-21 11:30:32,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2360 states. [2020-07-21 11:30:32,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2360 states to 2360 states and 2989 transitions. [2020-07-21 11:30:32,377 INFO L78 Accepts]: Start accepts. Automaton has 2360 states and 2989 transitions. Word has length 224 [2020-07-21 11:30:32,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:30:32,377 INFO L479 AbstractCegarLoop]: Abstraction has 2360 states and 2989 transitions. [2020-07-21 11:30:32,377 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:30:32,377 INFO L276 IsEmpty]: Start isEmpty. Operand 2360 states and 2989 transitions. [2020-07-21 11:30:32,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-07-21 11:30:32,383 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:30:32,383 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 11:30:32,597 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:30:32,598 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:30:32,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:30:32,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1311750989, now seen corresponding path program 1 times [2020-07-21 11:30:32,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:30:32,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1184974586] [2020-07-21 11:30:32,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:30:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:30:32,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:30:32,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:30:32,768 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-07-21 11:30:32,769 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:30:32,769 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1184974586] [2020-07-21 11:30:32,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:30:32,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:30:32,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233104329] [2020-07-21 11:30:32,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:30:32,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:30:32,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:30:32,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:30:32,771 INFO L87 Difference]: Start difference. First operand 2360 states and 2989 transitions. Second operand 3 states. [2020-07-21 11:30:33,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:30:33,440 INFO L93 Difference]: Finished difference Result 5002 states and 6420 transitions. [2020-07-21 11:30:33,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:30:33,441 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2020-07-21 11:30:33,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:30:33,441 INFO L225 Difference]: With dead ends: 5002 [2020-07-21 11:30:33,442 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 11:30:33,451 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:30:33,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 11:30:33,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 11:30:33,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 11:30:33,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 11:30:33,452 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 234 [2020-07-21 11:30:33,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:30:33,452 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 11:30:33,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:30:33,452 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 11:30:33,453 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 11:30:33,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:30:33,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 11:30:34,268 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 44 [2020-07-21 11:30:34,419 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:30:34,419 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)|)) [2020-07-21 11:30:34,419 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:30:34,419 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-21 11:30:34,419 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,420 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,420 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,420 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,420 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,420 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,420 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-21 11:30:34,420 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-21 11:30:34,420 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 11:30:34,421 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 11:30:34,421 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 11:30:34,421 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 11:30:34,421 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 11:30:34,421 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 11:30:34,422 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-21 11:30:34,422 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-21 11:30:34,422 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-21 11:30:34,422 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,422 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,422 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,422 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,423 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,423 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-21 11:30:34,423 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-21 11:30:34,423 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-21 11:30:34,423 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-21 11:30:34,423 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 11:30:34,423 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 11:30:34,423 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 11:30:34,424 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 11:30:34,424 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 11:30:34,424 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-21 11:30:34,424 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-21 11:30:34,424 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-21 11:30:34,424 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-21 11:30:34,424 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 100) no Hoare annotation was computed. [2020-07-21 11:30:34,424 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-21 11:30:34,425 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,425 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,425 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,425 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,425 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,425 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-21 11:30:34,425 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 11:30:34,426 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 11:30:34,426 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 11:30:34,426 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 11:30:34,426 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 11:30:34,426 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-21 11:30:34,426 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-21 11:30:34,426 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-21 11:30:34,426 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-21 11:30:34,427 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,427 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,427 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,427 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,427 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,427 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-21 11:30:34,427 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-21 11:30:34,427 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-21 11:30:34,428 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 11:30:34,428 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 11:30:34,428 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 11:30:34,428 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 11:30:34,428 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 11:30:34,428 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-21 11:30:34,428 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-21 11:30:34,428 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-21 11:30:34,428 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-21 11:30:34,429 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-21 11:30:34,429 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,429 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,429 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,429 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,429 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,429 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 11:30:34,429 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 11:30:34,429 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 11:30:34,430 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 11:30:34,430 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 11:30:34,430 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-21 11:30:34,430 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-21 11:30:34,430 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-21 11:30:34,430 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-21 11:30:34,430 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,430 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,431 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,431 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,431 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,431 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,431 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,431 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-21 11:30:34,431 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-21 11:30:34,431 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-21 11:30:34,431 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-21 11:30:34,432 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 11:30:34,432 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 11:30:34,432 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 11:30:34,432 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 11:30:34,432 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 11:30:34,432 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-21 11:30:34,432 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-21 11:30:34,432 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-21 11:30:34,432 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-21 11:30:34,432 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,433 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,433 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,433 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,433 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 11:30:34,433 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,433 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,433 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-21 11:30:34,433 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-21 11:30:34,433 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-21 11:30:34,434 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 11:30:34,434 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 11:30:34,434 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 11:30:34,434 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 11:30:34,434 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 11:30:34,434 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 11:30:34,434 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-21 11:30:34,434 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-21 11:30:34,434 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-21 11:30:34,434 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-21 11:30:34,434 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,434 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,434 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,434 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,435 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,435 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,435 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-21 11:30:34,435 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-21 11:30:34,435 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-21 11:30:34,435 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 11:30:34,435 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 11:30:34,435 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 11:30:34,435 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 11:30:34,435 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 11:30:34,435 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 11:30:34,435 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-21 11:30:34,435 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-21 11:30:34,436 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse3 (not (<= |old(~a1~0)| 23))) (.cse1 (<= ~a1~0 23)) (.cse7 (not (<= 9 |old(~a19~0)|))) (.cse6 (<= 9 ~a19~0)) (.cse5 (not (<= |old(~a10~0)| 1))) (.cse0 (<= ~a10~0 |old(~a10~0)|)) (.cse2 (<= ~a19~0 |old(~a19~0)|)) (.cse4 (not (<= |old(~a19~0)| 9)))) (and (or (and .cse0 .cse1 .cse2) .cse3 .cse4) (or .cse3 .cse1 .cse5) (or .cse6 .cse7 .cse4 (not (<= |old(~a10~0)| 2))) (or .cse7 (and .cse6 .cse0 .cse2) .cse5) (or (not (<= |old(~a10~0)| 3)) (and .cse0 .cse2) .cse4) (or (and .cse0 (<= 8 ~a19~0) .cse2) (not (<= 8 |old(~a19~0)|)) .cse4))) [2020-07-21 11:30:34,436 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-21 11:30:34,436 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-21 11:30:34,436 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-21 11:30:34,436 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,436 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,436 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,437 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,437 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,437 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,437 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-21 11:30:34,437 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 11:30:34,437 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 11:30:34,437 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 11:30:34,437 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 11:30:34,437 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 11:30:34,437 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 11:30:34,438 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-21 11:30:34,438 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-21 11:30:34,438 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-21 11:30:34,438 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-21 11:30:34,438 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-21 11:30:34,438 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-21 11:30:34,438 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,438 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,439 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,439 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,439 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,439 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,439 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-21 11:30:34,439 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-21 11:30:34,439 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-21 11:30:34,439 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 11:30:34,439 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 11:30:34,439 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 11:30:34,439 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 11:30:34,439 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 11:30:34,439 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 11:30:34,439 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-21 11:30:34,440 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-21 11:30:34,440 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-21 11:30:34,440 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,440 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,440 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,440 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,440 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,440 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:30:34,440 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-21 11:30:34,440 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-21 11:30:34,441 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-21 11:30:34,441 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 11:30:34,441 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 11:30:34,441 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 11:30:34,441 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 11:30:34,441 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 11:30:34,441 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 11:30:34,441 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-21 11:30:34,441 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-21 11:30:34,441 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-21 11:30:34,441 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:30:34,442 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= ~a19~0 9) (<= 9 ~a19~0) (<= ~a1~0 23)) [2020-07-21 11:30:34,442 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 11:30:34,442 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:30:34,442 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= |old(~a1~0)| 23)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and (<= 9 ~a19~0) (<= ~a10~0 |old(~a10~0)|) (<= ~a1~0 23) (<= ~a19~0 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9))) [2020-07-21 11:30:34,442 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-21 11:30:34,442 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9))) (or (and .cse0 (<= ~a1~0 23)) (<= ~a10~0 1) (and .cse0 (<= ~a10~0 3)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9)) (and .cse0 (<= 8 ~a19~0)))) [2020-07-21 11:30:34,442 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 11:30:34,442 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-21 11:30:34,442 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9))) (or (and .cse0 (<= ~a1~0 23)) (<= ~a10~0 1) (and .cse0 (<= ~a10~0 3)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9)) (and .cse0 (<= 8 ~a19~0)))) [2020-07-21 11:30:34,443 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-21 11:30:34,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:30:34 BoogieIcfgContainer [2020-07-21 11:30:34,461 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 11:30:34,463 INFO L168 Benchmark]: Toolchain (without parser) took 13457.02 ms. Allocated memory was 137.4 MB in the beginning and 369.1 MB in the end (delta: 231.7 MB). Free memory was 99.3 MB in the beginning and 106.1 MB in the end (delta: -6.8 MB). Peak memory consumption was 224.9 MB. Max. memory is 7.1 GB. [2020-07-21 11:30:34,464 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 137.4 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-21 11:30:34,464 INFO L168 Benchmark]: CACSL2BoogieTranslator took 722.53 ms. Allocated memory was 137.4 MB in the beginning and 203.9 MB in the end (delta: 66.6 MB). Free memory was 99.1 MB in the beginning and 169.9 MB in the end (delta: -70.8 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. [2020-07-21 11:30:34,465 INFO L168 Benchmark]: Boogie Preprocessor took 107.47 ms. Allocated memory is still 203.9 MB. Free memory was 169.9 MB in the beginning and 164.9 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 11:30:34,466 INFO L168 Benchmark]: RCFGBuilder took 1330.13 ms. Allocated memory was 203.9 MB in the beginning and 234.9 MB in the end (delta: 30.9 MB). Free memory was 164.9 MB in the beginning and 180.3 MB in the end (delta: -15.4 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2020-07-21 11:30:34,467 INFO L168 Benchmark]: TraceAbstraction took 11289.51 ms. Allocated memory was 234.9 MB in the beginning and 369.1 MB in the end (delta: 134.2 MB). Free memory was 180.3 MB in the beginning and 106.1 MB in the end (delta: 74.2 MB). Peak memory consumption was 208.4 MB. Max. memory is 7.1 GB. [2020-07-21 11:30:34,470 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 137.4 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 722.53 ms. Allocated memory was 137.4 MB in the beginning and 203.9 MB in the end (delta: 66.6 MB). Free memory was 99.1 MB in the beginning and 169.9 MB in the end (delta: -70.8 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.47 ms. Allocated memory is still 203.9 MB. Free memory was 169.9 MB in the beginning and 164.9 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1330.13 ms. Allocated memory was 203.9 MB in the beginning and 234.9 MB in the end (delta: 30.9 MB). Free memory was 164.9 MB in the beginning and 180.3 MB in the end (delta: -15.4 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11289.51 ms. Allocated memory was 234.9 MB in the beginning and 369.1 MB in the end (delta: 134.2 MB). Free memory was 180.3 MB in the beginning and 106.1 MB in the end (delta: 74.2 MB). Peak memory consumption was 208.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 100]: 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: (((((((a19 <= 9 && a1 <= 23) || a10 <= 1) || (a19 <= 9 && a10 <= 3)) || !(\old(a1) <= 23)) || !(\old(a10) <= 0)) || !(9 <= \old(a19))) || !(\old(a19) <= 9)) || (a19 <= 9 && 8 <= a19) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.4s, OverallIterations: 8, TraceHistogramMax: 3, AutomataDifference: 6.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 243 SDtfs, 1823 SDslu, 147 SDs, 0 SdLazy, 3666 SolverSat, 858 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1406 GetRequests, 1380 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2360occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 1341 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 66 PreInvPairs, 102 NumberOfFragments, 235 HoareAnnotationTreeSize, 66 FomulaSimplifications, 2752 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1036 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 1198 NumberOfCodeBlocks, 1198 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1395 ConstructedInterpolants, 0 QuantifiedInterpolants, 501263 SizeOfPredicates, 13 NumberOfNonLiveVariables, 2358 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 675/679 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...