/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_label39.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 11:38:34,529 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 11:38:34,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 11:38:34,551 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 11:38:34,552 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 11:38:34,554 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 11:38:34,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 11:38:34,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 11:38:34,571 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 11:38:34,575 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 11:38:34,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 11:38:34,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 11:38:34,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 11:38:34,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 11:38:34,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 11:38:34,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 11:38:34,586 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 11:38:34,587 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 11:38:34,589 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 11:38:34,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 11:38:34,591 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 11:38:34,592 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 11:38:34,593 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 11:38:34,594 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 11:38:34,596 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 11:38:34,603 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 11:38:34,604 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 11:38:34,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 11:38:34,605 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 11:38:34,619 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 11:38:34,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 11:38:34,621 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 11:38:34,621 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 11:38:34,621 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 11:38:34,622 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 11:38:34,622 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 11:38:34,622 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 11:38:34,622 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 11:38:34,622 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 11:38:34,623 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 11:38:34,623 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 11:38:34,623 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 11:38:34,623 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 11:38:34,623 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 11:38:34,623 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 11:38:34,624 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 11:38:34,624 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 11:38:34,624 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 11:38:34,624 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 11:38:34,625 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 11:38:34,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 11:38:34,625 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 11:38:34,625 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 11:38:34,625 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 11:38:34,626 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 11:38:34,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:38:34,626 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 11:38:34,626 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 11:38:34,626 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-20 11:38:34,897 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 11:38:34,910 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 11:38:34,914 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 11:38:34,915 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 11:38:34,916 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 11:38:34,917 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label39.c [2020-07-20 11:38:34,990 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94743cac5/cdfedd3acbad4fee894895dcc7df5236/FLAG836615604 [2020-07-20 11:38:35,619 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 11:38:35,620 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label39.c [2020-07-20 11:38:35,636 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94743cac5/cdfedd3acbad4fee894895dcc7df5236/FLAG836615604 [2020-07-20 11:38:35,888 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94743cac5/cdfedd3acbad4fee894895dcc7df5236 [2020-07-20 11:38:35,897 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 11:38:35,899 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 11:38:35,900 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 11:38:35,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 11:38:35,903 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 11:38:35,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:38:35" (1/1) ... [2020-07-20 11:38:35,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65940f7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:38:35, skipping insertion in model container [2020-07-20 11:38:35,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:38:35" (1/1) ... [2020-07-20 11:38:35,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 11:38:35,961 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 11:38:36,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:38:36,508 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 11:38:36,596 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:38:36,612 INFO L208 MainTranslator]: Completed translation [2020-07-20 11:38:36,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:38:36 WrapperNode [2020-07-20 11:38:36,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 11:38:36,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 11:38:36,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 11:38:36,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 11:38:36,628 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:38:36" (1/1) ... [2020-07-20 11:38:36,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:38:36" (1/1) ... [2020-07-20 11:38:36,651 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:38:36" (1/1) ... [2020-07-20 11:38:36,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:38:36" (1/1) ... [2020-07-20 11:38:36,689 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:38:36" (1/1) ... [2020-07-20 11:38:36,704 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:38:36" (1/1) ... [2020-07-20 11:38:36,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:38:36" (1/1) ... [2020-07-20 11:38:36,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 11:38:36,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 11:38:36,720 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 11:38:36,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 11:38:36,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:38:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 11:38:36,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 11:38:36,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 11:38:36,788 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 11:38:36,788 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 11:38:36,789 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 11:38:36,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 11:38:36,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 11:38:36,790 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 11:38:36,790 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 11:38:36,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 11:38:36,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 11:38:38,082 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 11:38:38,082 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 11:38:38,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:38:38 BoogieIcfgContainer [2020-07-20 11:38:38,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 11:38:38,090 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 11:38:38,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 11:38:38,093 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 11:38:38,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 11:38:35" (1/3) ... [2020-07-20 11:38:38,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22384db4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:38:38, skipping insertion in model container [2020-07-20 11:38:38,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:38:36" (2/3) ... [2020-07-20 11:38:38,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22384db4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:38:38, skipping insertion in model container [2020-07-20 11:38:38,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:38:38" (3/3) ... [2020-07-20 11:38:38,097 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label39.c [2020-07-20 11:38:38,108 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 11:38:38,116 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 11:38:38,129 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 11:38:38,154 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 11:38:38,154 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 11:38:38,154 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 11:38:38,154 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 11:38:38,155 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 11:38:38,155 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 11:38:38,155 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 11:38:38,155 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 11:38:38,180 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-20 11:38:38,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-07-20 11:38:38,188 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:38:38,189 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] [2020-07-20 11:38:38,189 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:38:38,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:38:38,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1917412719, now seen corresponding path program 1 times [2020-07-20 11:38:38,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:38:38,205 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [380626156] [2020-07-20 11:38:38,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:38:38,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:38:38,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:38:38,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:38:38,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:38:38,374 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:38:38,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [380626156] [2020-07-20 11:38:38,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:38:38,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:38:38,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821727408] [2020-07-20 11:38:38,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:38:38,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:38:38,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:38:38,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:38:38,409 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-20 11:38:39,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:38:39,463 INFO L93 Difference]: Finished difference Result 586 states and 1004 transitions. [2020-07-20 11:38:39,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:38:39,465 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-07-20 11:38:39,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:38:39,481 INFO L225 Difference]: With dead ends: 586 [2020-07-20 11:38:39,481 INFO L226 Difference]: Without dead ends: 294 [2020-07-20 11:38:39,488 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:38:39,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-20 11:38:39,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-20 11:38:39,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-20 11:38:39,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 446 transitions. [2020-07-20 11:38:39,559 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 446 transitions. Word has length 32 [2020-07-20 11:38:39,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:38:39,563 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 446 transitions. [2020-07-20 11:38:39,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:38:39,563 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 446 transitions. [2020-07-20 11:38:39,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-07-20 11:38:39,568 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:38:39,568 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:38:39,783 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:38:39,784 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:38:39,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:38:39,784 INFO L82 PathProgramCache]: Analyzing trace with hash 845536850, now seen corresponding path program 1 times [2020-07-20 11:38:39,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:38:39,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [224707112] [2020-07-20 11:38:39,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:38:39,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:38:39,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:38:39,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:38:39,879 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:38:39,879 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:38:39,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [224707112] [2020-07-20 11:38:39,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:38:39,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:38:39,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031512430] [2020-07-20 11:38:39,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:38:39,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:38:39,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:38:39,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:38:39,883 INFO L87 Difference]: Start difference. First operand 294 states and 446 transitions. Second operand 3 states. [2020-07-20 11:38:40,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:38:40,545 INFO L93 Difference]: Finished difference Result 868 states and 1337 transitions. [2020-07-20 11:38:40,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:38:40,546 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2020-07-20 11:38:40,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:38:40,555 INFO L225 Difference]: With dead ends: 868 [2020-07-20 11:38:40,555 INFO L226 Difference]: Without dead ends: 580 [2020-07-20 11:38:40,557 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:38:40,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-07-20 11:38:40,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2020-07-20 11:38:40,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-07-20 11:38:40,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 802 transitions. [2020-07-20 11:38:40,612 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 802 transitions. Word has length 102 [2020-07-20 11:38:40,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:38:40,613 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 802 transitions. [2020-07-20 11:38:40,613 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:38:40,613 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 802 transitions. [2020-07-20 11:38:40,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-07-20 11:38:40,622 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:38:40,622 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:38:40,836 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:38:40,837 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:38:40,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:38:40,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1094831721, now seen corresponding path program 1 times [2020-07-20 11:38:40,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:38:40,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2139624165] [2020-07-20 11:38:40,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:38:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:38:40,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:38:40,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:38:41,008 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:38:41,009 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:38:41,010 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2139624165] [2020-07-20 11:38:41,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:38:41,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 11:38:41,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258367356] [2020-07-20 11:38:41,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 11:38:41,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:38:41,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 11:38:41,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:38:41,012 INFO L87 Difference]: Start difference. First operand 580 states and 802 transitions. Second operand 5 states. [2020-07-20 11:38:42,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:38:42,057 INFO L93 Difference]: Finished difference Result 1470 states and 2115 transitions. [2020-07-20 11:38:42,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 11:38:42,059 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 113 [2020-07-20 11:38:42,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:38:42,066 INFO L225 Difference]: With dead ends: 1470 [2020-07-20 11:38:42,066 INFO L226 Difference]: Without dead ends: 896 [2020-07-20 11:38:42,068 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 11:38:42,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2020-07-20 11:38:42,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 886. [2020-07-20 11:38:42,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 886 states. [2020-07-20 11:38:42,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1170 transitions. [2020-07-20 11:38:42,102 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1170 transitions. Word has length 113 [2020-07-20 11:38:42,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:38:42,102 INFO L479 AbstractCegarLoop]: Abstraction has 886 states and 1170 transitions. [2020-07-20 11:38:42,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 11:38:42,103 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1170 transitions. [2020-07-20 11:38:42,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-07-20 11:38:42,105 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:38:42,106 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:38:42,319 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:38:42,320 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:38:42,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:38:42,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1525370507, now seen corresponding path program 1 times [2020-07-20 11:38:42,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:38:42,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [633485847] [2020-07-20 11:38:42,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:38:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:38:42,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:38:42,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:38:42,443 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:38:42,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:38:42,444 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [633485847] [2020-07-20 11:38:42,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:38:42,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 11:38:42,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265677000] [2020-07-20 11:38:42,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 11:38:42,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:38:42,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 11:38:42,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:38:42,448 INFO L87 Difference]: Start difference. First operand 886 states and 1170 transitions. Second operand 5 states. [2020-07-20 11:38:43,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:38:43,418 INFO L93 Difference]: Finished difference Result 2233 states and 3103 transitions. [2020-07-20 11:38:43,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 11:38:43,420 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 123 [2020-07-20 11:38:43,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:38:43,437 INFO L225 Difference]: With dead ends: 2233 [2020-07-20 11:38:43,437 INFO L226 Difference]: Without dead ends: 1353 [2020-07-20 11:38:43,444 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:38:43,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1353 states. [2020-07-20 11:38:43,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1353 to 1327. [2020-07-20 11:38:43,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1327 states. [2020-07-20 11:38:43,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 1744 transitions. [2020-07-20 11:38:43,505 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 1744 transitions. Word has length 123 [2020-07-20 11:38:43,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:38:43,506 INFO L479 AbstractCegarLoop]: Abstraction has 1327 states and 1744 transitions. [2020-07-20 11:38:43,506 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 11:38:43,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 1744 transitions. [2020-07-20 11:38:43,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-07-20 11:38:43,510 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:38:43,511 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 11:38:43,724 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:38:43,725 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:38:43,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:38:43,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1593789539, now seen corresponding path program 1 times [2020-07-20 11:38:43,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:38:43,727 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1881247792] [2020-07-20 11:38:43,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:38:43,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:38:43,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:38:43,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:38:43,882 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 118 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:38:43,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:38:44,007 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 118 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:38:44,007 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1881247792] [2020-07-20 11:38:44,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:38:44,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 11:38:44,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374257608] [2020-07-20 11:38:44,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 11:38:44,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:38:44,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 11:38:44,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:38:44,010 INFO L87 Difference]: Start difference. First operand 1327 states and 1744 transitions. Second operand 7 states. [2020-07-20 11:38:45,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:38:45,383 INFO L93 Difference]: Finished difference Result 3246 states and 4284 transitions. [2020-07-20 11:38:45,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-20 11:38:45,384 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 184 [2020-07-20 11:38:45,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:38:45,399 INFO L225 Difference]: With dead ends: 3246 [2020-07-20 11:38:45,399 INFO L226 Difference]: Without dead ends: 1925 [2020-07-20 11:38:45,404 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 363 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-20 11:38:45,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1925 states. [2020-07-20 11:38:45,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1925 to 1921. [2020-07-20 11:38:45,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1921 states. [2020-07-20 11:38:45,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1921 states to 1921 states and 2361 transitions. [2020-07-20 11:38:45,475 INFO L78 Accepts]: Start accepts. Automaton has 1921 states and 2361 transitions. Word has length 184 [2020-07-20 11:38:45,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:38:45,476 INFO L479 AbstractCegarLoop]: Abstraction has 1921 states and 2361 transitions. [2020-07-20 11:38:45,476 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 11:38:45,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1921 states and 2361 transitions. [2020-07-20 11:38:45,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-07-20 11:38:45,480 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:38:45,481 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:38:45,693 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:38:45,694 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:38:45,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:38:45,695 INFO L82 PathProgramCache]: Analyzing trace with hash 383631829, now seen corresponding path program 1 times [2020-07-20 11:38:45,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:38:45,696 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [385817791] [2020-07-20 11:38:45,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:38:45,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:38:45,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:38:45,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:38:45,801 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-20 11:38:45,802 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:38:45,802 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [385817791] [2020-07-20 11:38:45,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:38:45,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:38:45,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169632321] [2020-07-20 11:38:45,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:38:45,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:38:45,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:38:45,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:38:45,804 INFO L87 Difference]: Start difference. First operand 1921 states and 2361 transitions. Second operand 3 states. [2020-07-20 11:38:46,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:38:46,465 INFO L93 Difference]: Finished difference Result 3230 states and 3986 transitions. [2020-07-20 11:38:46,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:38:46,470 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2020-07-20 11:38:46,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:38:46,486 INFO L225 Difference]: With dead ends: 3230 [2020-07-20 11:38:46,486 INFO L226 Difference]: Without dead ends: 3228 [2020-07-20 11:38:46,489 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:38:46,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3228 states. [2020-07-20 11:38:46,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3228 to 2219. [2020-07-20 11:38:46,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2219 states. [2020-07-20 11:38:46,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2219 states to 2219 states and 2724 transitions. [2020-07-20 11:38:46,563 INFO L78 Accepts]: Start accepts. Automaton has 2219 states and 2724 transitions. Word has length 188 [2020-07-20 11:38:46,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:38:46,564 INFO L479 AbstractCegarLoop]: Abstraction has 2219 states and 2724 transitions. [2020-07-20 11:38:46,564 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:38:46,564 INFO L276 IsEmpty]: Start isEmpty. Operand 2219 states and 2724 transitions. [2020-07-20 11:38:46,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-07-20 11:38:46,568 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:38:46,568 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:38:46,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:38:46,785 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:38:46,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:38:46,786 INFO L82 PathProgramCache]: Analyzing trace with hash -427970360, now seen corresponding path program 1 times [2020-07-20 11:38:46,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:38:46,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1287213434] [2020-07-20 11:38:46,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:38:46,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:38:46,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:38:46,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:38:46,940 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-07-20 11:38:46,940 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:38:46,940 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1287213434] [2020-07-20 11:38:46,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:38:46,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:38:46,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442605829] [2020-07-20 11:38:46,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:38:46,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:38:46,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:38:46,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:38:46,943 INFO L87 Difference]: Start difference. First operand 2219 states and 2724 transitions. Second operand 3 states. [2020-07-20 11:38:47,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:38:47,557 INFO L93 Difference]: Finished difference Result 4432 states and 5449 transitions. [2020-07-20 11:38:47,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:38:47,557 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2020-07-20 11:38:47,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:38:47,568 INFO L225 Difference]: With dead ends: 4432 [2020-07-20 11:38:47,568 INFO L226 Difference]: Without dead ends: 2219 [2020-07-20 11:38:47,574 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:38:47,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2219 states. [2020-07-20 11:38:47,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2219 to 2074. [2020-07-20 11:38:47,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2074 states. [2020-07-20 11:38:47,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2074 states to 2074 states and 2492 transitions. [2020-07-20 11:38:47,670 INFO L78 Accepts]: Start accepts. Automaton has 2074 states and 2492 transitions. Word has length 201 [2020-07-20 11:38:47,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:38:47,670 INFO L479 AbstractCegarLoop]: Abstraction has 2074 states and 2492 transitions. [2020-07-20 11:38:47,670 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:38:47,670 INFO L276 IsEmpty]: Start isEmpty. Operand 2074 states and 2492 transitions. [2020-07-20 11:38:47,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-07-20 11:38:47,679 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:38:47,679 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:38:47,894 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:38:47,895 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:38:47,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:38:47,896 INFO L82 PathProgramCache]: Analyzing trace with hash -2117945153, now seen corresponding path program 1 times [2020-07-20 11:38:47,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:38:47,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1383204479] [2020-07-20 11:38:47,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:38:47,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:38:47,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:38:47,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:38:48,067 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 270 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-07-20 11:38:48,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:38:48,206 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 149 proven. 72 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-07-20 11:38:48,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1383204479] [2020-07-20 11:38:48,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:38:48,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 11:38:48,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780463476] [2020-07-20 11:38:48,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 11:38:48,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:38:48,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 11:38:48,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:38:48,208 INFO L87 Difference]: Start difference. First operand 2074 states and 2492 transitions. Second operand 6 states. [2020-07-20 11:38:49,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:38:49,304 INFO L93 Difference]: Finished difference Result 5346 states and 6558 transitions. [2020-07-20 11:38:49,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 11:38:49,306 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 309 [2020-07-20 11:38:49,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:38:49,316 INFO L225 Difference]: With dead ends: 5346 [2020-07-20 11:38:49,316 INFO L226 Difference]: Without dead ends: 2110 [2020-07-20 11:38:49,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 623 GetRequests, 614 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:38:49,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2110 states. [2020-07-20 11:38:49,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2110 to 1192. [2020-07-20 11:38:49,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1192 states. [2020-07-20 11:38:49,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 1349 transitions. [2020-07-20 11:38:49,365 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 1349 transitions. Word has length 309 [2020-07-20 11:38:49,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:38:49,366 INFO L479 AbstractCegarLoop]: Abstraction has 1192 states and 1349 transitions. [2020-07-20 11:38:49,366 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 11:38:49,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 1349 transitions. [2020-07-20 11:38:49,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2020-07-20 11:38:49,373 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:38:49,373 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:38:49,586 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:38:49,587 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:38:49,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:38:49,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1854217801, now seen corresponding path program 1 times [2020-07-20 11:38:49,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:38:49,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [481899814] [2020-07-20 11:38:49,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:38:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:38:49,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:38:49,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:38:49,856 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 263 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-07-20 11:38:49,856 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:38:50,133 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 263 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-07-20 11:38:50,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [481899814] [2020-07-20 11:38:50,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:38:50,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 11:38:50,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146654439] [2020-07-20 11:38:50,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 11:38:50,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:38:50,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 11:38:50,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:38:50,138 INFO L87 Difference]: Start difference. First operand 1192 states and 1349 transitions. Second operand 7 states. [2020-07-20 11:38:51,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:38:51,656 INFO L93 Difference]: Finished difference Result 3852 states and 4550 transitions. [2020-07-20 11:38:51,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-20 11:38:51,662 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 345 [2020-07-20 11:38:51,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:38:51,673 INFO L225 Difference]: With dead ends: 3852 [2020-07-20 11:38:51,673 INFO L226 Difference]: Without dead ends: 2666 [2020-07-20 11:38:51,677 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 697 GetRequests, 687 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-07-20 11:38:51,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2666 states. [2020-07-20 11:38:51,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2666 to 2646. [2020-07-20 11:38:51,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2646 states. [2020-07-20 11:38:51,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2646 states to 2646 states and 3035 transitions. [2020-07-20 11:38:51,743 INFO L78 Accepts]: Start accepts. Automaton has 2646 states and 3035 transitions. Word has length 345 [2020-07-20 11:38:51,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:38:51,744 INFO L479 AbstractCegarLoop]: Abstraction has 2646 states and 3035 transitions. [2020-07-20 11:38:51,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 11:38:51,745 INFO L276 IsEmpty]: Start isEmpty. Operand 2646 states and 3035 transitions. [2020-07-20 11:38:51,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2020-07-20 11:38:51,756 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:38:51,756 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:38:51,970 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:38:51,971 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:38:51,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:38:51,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1233061169, now seen corresponding path program 1 times [2020-07-20 11:38:51,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:38:51,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [610651609] [2020-07-20 11:38:51,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:38:52,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:38:52,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:38:52,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:38:52,246 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2020-07-20 11:38:52,246 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:38:52,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [610651609] [2020-07-20 11:38:52,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:38:52,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:38:52,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126198285] [2020-07-20 11:38:52,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:38:52,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:38:52,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:38:52,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:38:52,249 INFO L87 Difference]: Start difference. First operand 2646 states and 3035 transitions. Second operand 3 states. [2020-07-20 11:38:52,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:38:52,754 INFO L93 Difference]: Finished difference Result 2646 states and 3035 transitions. [2020-07-20 11:38:52,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:38:52,755 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 397 [2020-07-20 11:38:52,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:38:52,756 INFO L225 Difference]: With dead ends: 2646 [2020-07-20 11:38:52,756 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 11:38:52,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:38:52,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 11:38:52,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 11:38:52,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 11:38:52,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 11:38:52,762 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 397 [2020-07-20 11:38:52,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:38:52,762 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 11:38:52,762 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:38:52,762 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 11:38:52,763 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 11:38:52,975 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:38:52,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 11:38:53,437 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 99 [2020-07-20 11:38:53,617 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 99 [2020-07-20 11:38:54,328 WARN L193 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 48 [2020-07-20 11:38:54,775 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 32 [2020-07-20 11:38:55,197 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 32 [2020-07-20 11:38:55,201 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:38:55,202 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a1~0)| ~a1~0) (<= ~a19~0 |old(~a19~0)|)) [2020-07-20 11:38:55,202 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:38:55,202 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-20 11:38:55,202 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,203 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,203 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,203 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,203 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,203 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,203 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-20 11:38:55,203 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-20 11:38:55,203 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-20 11:38:55,203 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-20 11:38:55,203 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-20 11:38:55,203 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-20 11:38:55,203 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-20 11:38:55,204 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-20 11:38:55,204 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-20 11:38:55,204 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-20 11:38:55,204 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-20 11:38:55,204 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,204 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,204 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,204 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,205 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,205 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-20 11:38:55,205 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-20 11:38:55,205 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-20 11:38:55,205 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-20 11:38:55,205 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-20 11:38:55,205 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-20 11:38:55,205 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-20 11:38:55,205 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-20 11:38:55,205 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-20 11:38:55,205 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-20 11:38:55,205 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-20 11:38:55,206 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-20 11:38:55,206 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-20 11:38:55,206 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 82) no Hoare annotation was computed. [2020-07-20 11:38:55,206 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-20 11:38:55,206 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,206 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,206 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,206 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,206 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,206 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-20 11:38:55,206 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-20 11:38:55,207 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-20 11:38:55,207 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-20 11:38:55,207 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-20 11:38:55,207 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-20 11:38:55,207 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-20 11:38:55,207 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-20 11:38:55,207 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-20 11:38:55,207 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-20 11:38:55,207 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,208 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,208 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,208 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,208 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,208 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-20 11:38:55,208 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-20 11:38:55,208 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-20 11:38:55,208 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-20 11:38:55,208 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-20 11:38:55,209 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-20 11:38:55,209 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-20 11:38:55,209 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-20 11:38:55,209 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-20 11:38:55,209 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-20 11:38:55,209 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-20 11:38:55,209 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-20 11:38:55,210 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-20 11:38:55,210 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,210 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,210 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,210 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,210 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,210 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-20 11:38:55,210 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-20 11:38:55,210 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-20 11:38:55,211 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-20 11:38:55,211 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-20 11:38:55,211 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-20 11:38:55,211 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-20 11:38:55,211 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-20 11:38:55,211 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-20 11:38:55,211 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,211 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,211 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,211 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,211 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,211 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,212 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,212 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-20 11:38:55,212 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-20 11:38:55,212 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-20 11:38:55,212 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-20 11:38:55,212 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-20 11:38:55,212 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-20 11:38:55,212 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-20 11:38:55,212 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-20 11:38:55,212 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-20 11:38:55,213 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-20 11:38:55,213 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-20 11:38:55,213 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-20 11:38:55,213 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-20 11:38:55,213 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,213 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,213 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,213 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,213 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-20 11:38:55,214 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,214 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,214 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-20 11:38:55,214 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-20 11:38:55,214 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-20 11:38:55,214 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-20 11:38:55,214 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-20 11:38:55,214 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-20 11:38:55,214 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-20 11:38:55,215 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-20 11:38:55,215 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-20 11:38:55,215 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-20 11:38:55,215 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-20 11:38:55,215 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-20 11:38:55,215 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-20 11:38:55,215 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,215 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,215 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,215 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,216 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,216 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,216 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-20 11:38:55,216 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-20 11:38:55,216 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-20 11:38:55,216 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-20 11:38:55,216 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-20 11:38:55,216 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-20 11:38:55,216 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-20 11:38:55,217 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-20 11:38:55,217 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-20 11:38:55,217 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-20 11:38:55,217 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-20 11:38:55,217 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse5 (<= ~a10~0 |old(~a10~0)|)) (.cse2 (<= |old(~a1~0)| ~a1~0)) (.cse6 (<= ~a19~0 |old(~a19~0)|))) (let ((.cse0 (and .cse5 .cse2 .cse6)) (.cse3 (not (<= |old(~a19~0)| 9))) (.cse1 (not (<= 1 |old(~a10~0)|))) (.cse4 (not (<= |old(~a10~0)| 2)))) (and (or (not (<= |old(~a19~0)| 6)) .cse0) (or .cse1 .cse2 .cse3 .cse4) (or (not (<= 23 |old(~a1~0)|)) .cse3 .cse0) (or (not (<= 9 |old(~a19~0)|)) (and (<= 9 ~a19~0) .cse5 .cse2 .cse6) .cse4) (or (and .cse5 .cse2 .cse6 (<= 2 ~a10~0)) .cse3 (not (<= 2 |old(~a10~0)|))) (or .cse1 (and .cse5 .cse6) .cse3 .cse4) (or .cse1 (<= 1 ~a10~0) .cse4)))) [2020-07-20 11:38:55,217 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-20 11:38:55,217 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-20 11:38:55,218 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-20 11:38:55,218 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,218 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,218 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,218 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,218 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,218 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,218 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-20 11:38:55,218 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-20 11:38:55,218 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-20 11:38:55,219 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-20 11:38:55,219 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-20 11:38:55,219 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-20 11:38:55,219 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-20 11:38:55,219 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-20 11:38:55,219 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-20 11:38:55,219 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-20 11:38:55,219 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-20 11:38:55,220 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-20 11:38:55,220 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-20 11:38:55,220 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,220 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,220 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,220 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,220 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,220 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,221 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-20 11:38:55,221 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-20 11:38:55,221 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-20 11:38:55,221 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-20 11:38:55,221 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-20 11:38:55,221 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-20 11:38:55,221 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-20 11:38:55,221 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-20 11:38:55,222 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-20 11:38:55,222 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-20 11:38:55,222 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-20 11:38:55,222 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-20 11:38:55,222 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,222 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,222 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,222 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,223 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,223 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 11:38:55,223 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-20 11:38:55,223 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-20 11:38:55,223 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-20 11:38:55,223 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-20 11:38:55,223 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-20 11:38:55,223 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-20 11:38:55,224 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-20 11:38:55,224 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-20 11:38:55,224 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-20 11:38:55,224 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-20 11:38:55,224 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-20 11:38:55,224 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-20 11:38:55,224 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:38:55,225 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= ~a19~0 9) (<= 9 ~a19~0) (<= 23 ~a1~0)) [2020-07-20 11:38:55,225 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 11:38:55,225 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:38:55,225 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and (<= 9 ~a19~0) (<= ~a10~0 |old(~a10~0)|) (<= |old(~a1~0)| ~a1~0) (<= ~a19~0 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9))) [2020-07-20 11:38:55,225 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-20 11:38:55,225 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9)) (.cse1 (<= ~a10~0 2))) (or (not (<= 23 |old(~a1~0)|)) (and .cse0 (<= 23 ~a1~0)) (and (<= 1 ~a10~0) .cse1) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9)) (and .cse0 (<= 2 ~a10~0)) (and (<= 9 ~a19~0) .cse1))) [2020-07-20 11:38:55,225 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-20 11:38:55,226 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-20 11:38:55,226 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9)) (.cse1 (<= ~a10~0 2))) (or (not (<= 23 |old(~a1~0)|)) (and .cse0 (<= 23 ~a1~0)) (and (<= 1 ~a10~0) .cse1) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9)) (and .cse0 (<= 2 ~a10~0)) (and (<= 9 ~a19~0) .cse1))) [2020-07-20 11:38:55,226 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-20 11:38:55,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 11:38:55 BoogieIcfgContainer [2020-07-20 11:38:55,245 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 11:38:55,247 INFO L168 Benchmark]: Toolchain (without parser) took 19349.00 ms. Allocated memory was 139.5 MB in the beginning and 530.6 MB in the end (delta: 391.1 MB). Free memory was 102.3 MB in the beginning and 186.1 MB in the end (delta: -83.8 MB). Peak memory consumption was 350.8 MB. Max. memory is 7.1 GB. [2020-07-20 11:38:55,248 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-07-20 11:38:55,249 INFO L168 Benchmark]: CACSL2BoogieTranslator took 713.20 ms. Allocated memory was 139.5 MB in the beginning and 205.5 MB in the end (delta: 66.1 MB). Free memory was 101.9 MB in the beginning and 171.4 MB in the end (delta: -69.5 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. [2020-07-20 11:38:55,249 INFO L168 Benchmark]: Boogie Preprocessor took 106.66 ms. Allocated memory is still 205.5 MB. Free memory was 171.4 MB in the beginning and 166.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-20 11:38:55,250 INFO L168 Benchmark]: RCFGBuilder took 1368.57 ms. Allocated memory was 205.5 MB in the beginning and 238.6 MB in the end (delta: 33.0 MB). Free memory was 166.6 MB in the beginning and 181.7 MB in the end (delta: -15.0 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. [2020-07-20 11:38:55,251 INFO L168 Benchmark]: TraceAbstraction took 17155.32 ms. Allocated memory was 238.6 MB in the beginning and 530.6 MB in the end (delta: 292.0 MB). Free memory was 180.2 MB in the beginning and 186.1 MB in the end (delta: -5.9 MB). Peak memory consumption was 329.6 MB. Max. memory is 7.1 GB. [2020-07-20 11:38:55,255 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 713.20 ms. Allocated memory was 139.5 MB in the beginning and 205.5 MB in the end (delta: 66.1 MB). Free memory was 101.9 MB in the beginning and 171.4 MB in the end (delta: -69.5 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.66 ms. Allocated memory is still 205.5 MB. Free memory was 171.4 MB in the beginning and 166.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1368.57 ms. Allocated memory was 205.5 MB in the beginning and 238.6 MB in the end (delta: 33.0 MB). Free memory was 166.6 MB in the beginning and 181.7 MB in the end (delta: -15.0 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17155.32 ms. Allocated memory was 238.6 MB in the beginning and 530.6 MB in the end (delta: 292.0 MB). Free memory was 180.2 MB in the beginning and 186.1 MB in the end (delta: -5.9 MB). Peak memory consumption was 329.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 82]: 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: (((((((!(23 <= \old(a1)) || (a19 <= 9 && 23 <= a1)) || (1 <= a10 && a10 <= 2)) || a19 <= 6) || !(\old(a10) <= 0)) || !(9 <= \old(a19))) || !(\old(a19) <= 9)) || (a19 <= 9 && 2 <= a10)) || (9 <= a19 && a10 <= 2) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.8s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 9.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 790 SDtfs, 2794 SDslu, 270 SDs, 0 SdLazy, 5837 SolverSat, 1157 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2847 GetRequests, 2802 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2646occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 2132 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 91 PreInvPairs, 143 NumberOfFragments, 277 HoareAnnotationTreeSize, 91 FomulaSimplifications, 9724 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 6102 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1994 NumberOfCodeBlocks, 1994 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 2819 ConstructedInterpolants, 0 QuantifiedInterpolants, 1488631 SizeOfPredicates, 15 NumberOfNonLiveVariables, 3657 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 2154/2236 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...