/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/Problem14_label24.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 11:32:18,680 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 11:32:18,683 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 11:32:18,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 11:32:18,702 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 11:32:18,704 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 11:32:18,706 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 11:32:18,715 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 11:32:18,717 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 11:32:18,718 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 11:32:18,719 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 11:32:18,720 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 11:32:18,720 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 11:32:18,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 11:32:18,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 11:32:18,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 11:32:18,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 11:32:18,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 11:32:18,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 11:32:18,729 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 11:32:18,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 11:32:18,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 11:32:18,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 11:32:18,733 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 11:32:18,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 11:32:18,744 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 11:32:18,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 11:32:18,745 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 11:32:18,746 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 11:32:18,761 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 11:32:18,762 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 11:32:18,763 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 11:32:18,763 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 11:32:18,763 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 11:32:18,763 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 11:32:18,764 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 11:32:18,764 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 11:32:18,764 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 11:32:18,764 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 11:32:18,764 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 11:32:18,765 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 11:32:18,765 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 11:32:18,765 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 11:32:18,765 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 11:32:18,765 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 11:32:18,766 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 11:32:18,766 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 11:32:18,766 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 11:32:18,766 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 11:32:18,766 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 11:32:18,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:32:18,767 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 11:32:18,767 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 11:32:18,767 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 11:32:18,767 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 11:32:18,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:32:18,768 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 11:32:18,768 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 11:32:18,768 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-21 11:32:19,033 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 11:32:19,055 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 11:32:19,058 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 11:32:19,060 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 11:32:19,060 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 11:32:19,062 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label24.c [2020-07-21 11:32:19,138 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e680a5d9/4d2d32d8ca594ad990d5a47f7a29c20d/FLAGc21f6c3fc [2020-07-21 11:32:19,734 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 11:32:19,735 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label24.c [2020-07-21 11:32:19,752 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e680a5d9/4d2d32d8ca594ad990d5a47f7a29c20d/FLAGc21f6c3fc [2020-07-21 11:32:19,965 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e680a5d9/4d2d32d8ca594ad990d5a47f7a29c20d [2020-07-21 11:32:19,976 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 11:32:19,979 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 11:32:19,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 11:32:19,981 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 11:32:19,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 11:32:19,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:32:19" (1/1) ... [2020-07-21 11:32:19,991 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f5a1364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:32:19, skipping insertion in model container [2020-07-21 11:32:19,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:32:19" (1/1) ... [2020-07-21 11:32:20,001 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 11:32:20,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 11:32:20,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:32:20,566 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 11:32:20,890 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:32:20,914 INFO L208 MainTranslator]: Completed translation [2020-07-21 11:32:20,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:32:20 WrapperNode [2020-07-21 11:32:20,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 11:32:20,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 11:32:20,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 11:32:20,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 11:32:20,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:32:20" (1/1) ... [2020-07-21 11:32:20,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:32:20" (1/1) ... [2020-07-21 11:32:20,966 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:32:20" (1/1) ... [2020-07-21 11:32:20,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:32:20" (1/1) ... [2020-07-21 11:32:21,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:32:20" (1/1) ... [2020-07-21 11:32:21,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:32:20" (1/1) ... [2020-07-21 11:32:21,073 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:32:20" (1/1) ... [2020-07-21 11:32:21,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 11:32:21,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 11:32:21,104 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 11:32:21,104 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 11:32:21,105 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:32:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:32:21,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 11:32:21,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 11:32:21,207 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 11:32:21,207 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 11:32:21,208 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 11:32:21,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 11:32:21,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 11:32:21,210 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 11:32:21,210 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 11:32:21,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 11:32:21,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 11:32:22,981 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 11:32:22,982 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 11:32:22,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:32:22 BoogieIcfgContainer [2020-07-21 11:32:22,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 11:32:22,992 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 11:32:22,992 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 11:32:22,996 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 11:32:22,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:32:19" (1/3) ... [2020-07-21 11:32:22,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4175d668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:32:22, skipping insertion in model container [2020-07-21 11:32:22,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:32:20" (2/3) ... [2020-07-21 11:32:22,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4175d668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:32:22, skipping insertion in model container [2020-07-21 11:32:22,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:32:22" (3/3) ... [2020-07-21 11:32:23,000 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label24.c [2020-07-21 11:32:23,014 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 11:32:23,023 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 11:32:23,042 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 11:32:23,071 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 11:32:23,071 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 11:32:23,072 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 11:32:23,072 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 11:32:23,072 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 11:32:23,072 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 11:32:23,072 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 11:32:23,073 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 11:32:23,098 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-07-21 11:32:23,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-21 11:32:23,107 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:32:23,108 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:32:23,108 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:32:23,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:32:23,116 INFO L82 PathProgramCache]: Analyzing trace with hash 2116109586, now seen corresponding path program 1 times [2020-07-21 11:32:23,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:32:23,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [864219329] [2020-07-21 11:32:23,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:32:23,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:32:23,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:32:23,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:32:23,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:32:23,315 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:32:23,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [864219329] [2020-07-21 11:32:23,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:32:23,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:32:23,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384151722] [2020-07-21 11:32:23,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:32:23,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:32:23,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:32:23,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:32:23,347 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 3 states. [2020-07-21 11:32:24,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:32:24,645 INFO L93 Difference]: Finished difference Result 688 states and 1223 transitions. [2020-07-21 11:32:24,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:32:24,649 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-21 11:32:24,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:32:24,681 INFO L225 Difference]: With dead ends: 688 [2020-07-21 11:32:24,681 INFO L226 Difference]: Without dead ends: 372 [2020-07-21 11:32:24,692 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:32:24,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2020-07-21 11:32:24,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2020-07-21 11:32:24,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2020-07-21 11:32:24,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 602 transitions. [2020-07-21 11:32:24,807 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 602 transitions. Word has length 47 [2020-07-21 11:32:24,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:32:24,809 INFO L479 AbstractCegarLoop]: Abstraction has 372 states and 602 transitions. [2020-07-21 11:32:24,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:32:24,809 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 602 transitions. [2020-07-21 11:32:24,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-07-21 11:32:24,822 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:32:24,822 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:32:25,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:32:25,024 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:32:25,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:32:25,025 INFO L82 PathProgramCache]: Analyzing trace with hash 13726601, now seen corresponding path program 1 times [2020-07-21 11:32:25,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:32:25,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [514982676] [2020-07-21 11:32:25,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:32:25,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:32:25,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:32:25,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:32:25,189 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:32:25,190 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:32:25,190 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [514982676] [2020-07-21 11:32:25,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:32:25,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:32:25,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782258418] [2020-07-21 11:32:25,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:32:25,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:32:25,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:32:25,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:32:25,195 INFO L87 Difference]: Start difference. First operand 372 states and 602 transitions. Second operand 5 states. [2020-07-21 11:32:26,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:32:26,695 INFO L93 Difference]: Finished difference Result 940 states and 1534 transitions. [2020-07-21 11:32:26,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:32:26,696 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 116 [2020-07-21 11:32:26,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:32:26,701 INFO L225 Difference]: With dead ends: 940 [2020-07-21 11:32:26,701 INFO L226 Difference]: Without dead ends: 574 [2020-07-21 11:32:26,703 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:32:26,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2020-07-21 11:32:26,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 562. [2020-07-21 11:32:26,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2020-07-21 11:32:26,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 827 transitions. [2020-07-21 11:32:26,739 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 827 transitions. Word has length 116 [2020-07-21 11:32:26,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:32:26,741 INFO L479 AbstractCegarLoop]: Abstraction has 562 states and 827 transitions. [2020-07-21 11:32:26,742 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:32:26,742 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 827 transitions. [2020-07-21 11:32:26,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-07-21 11:32:26,745 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:32:26,745 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:32:26,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:32:26,952 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:32:26,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:32:26,954 INFO L82 PathProgramCache]: Analyzing trace with hash -1786227410, now seen corresponding path program 1 times [2020-07-21 11:32:26,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:32:26,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [538391027] [2020-07-21 11:32:26,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:32:27,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:32:27,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:32:27,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:32:27,103 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:32:27,104 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:32:27,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [538391027] [2020-07-21 11:32:27,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:32:27,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:32:27,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703208919] [2020-07-21 11:32:27,106 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:32:27,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:32:27,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:32:27,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:32:27,107 INFO L87 Difference]: Start difference. First operand 562 states and 827 transitions. Second operand 5 states. [2020-07-21 11:32:28,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:32:28,506 INFO L93 Difference]: Finished difference Result 1702 states and 2578 transitions. [2020-07-21 11:32:28,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:32:28,509 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 117 [2020-07-21 11:32:28,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:32:28,517 INFO L225 Difference]: With dead ends: 1702 [2020-07-21 11:32:28,518 INFO L226 Difference]: Without dead ends: 1146 [2020-07-21 11:32:28,520 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:32:28,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2020-07-21 11:32:28,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 1128. [2020-07-21 11:32:28,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1128 states. [2020-07-21 11:32:28,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 1574 transitions. [2020-07-21 11:32:28,576 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 1574 transitions. Word has length 117 [2020-07-21 11:32:28,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:32:28,577 INFO L479 AbstractCegarLoop]: Abstraction has 1128 states and 1574 transitions. [2020-07-21 11:32:28,577 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:32:28,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 1574 transitions. [2020-07-21 11:32:28,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-07-21 11:32:28,583 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:32:28,583 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:32:28,801 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:32:28,802 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:32:28,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:32:28,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1793655022, now seen corresponding path program 1 times [2020-07-21 11:32:28,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:32:28,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1810767983] [2020-07-21 11:32:28,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:32:28,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:32:28,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:32:28,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:32:28,965 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:32:28,966 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:32:28,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1810767983] [2020-07-21 11:32:28,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:32:28,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:32:28,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742803359] [2020-07-21 11:32:28,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:32:28,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:32:28,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:32:28,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:32:28,970 INFO L87 Difference]: Start difference. First operand 1128 states and 1574 transitions. Second operand 5 states. [2020-07-21 11:32:30,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:32:30,332 INFO L93 Difference]: Finished difference Result 2854 states and 4014 transitions. [2020-07-21 11:32:30,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:32:30,336 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 119 [2020-07-21 11:32:30,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:32:30,355 INFO L225 Difference]: With dead ends: 2854 [2020-07-21 11:32:30,355 INFO L226 Difference]: Without dead ends: 1732 [2020-07-21 11:32:30,359 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:32:30,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1732 states. [2020-07-21 11:32:30,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1732 to 1690. [2020-07-21 11:32:30,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1690 states. [2020-07-21 11:32:30,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1690 states to 1690 states and 2243 transitions. [2020-07-21 11:32:30,455 INFO L78 Accepts]: Start accepts. Automaton has 1690 states and 2243 transitions. Word has length 119 [2020-07-21 11:32:30,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:32:30,456 INFO L479 AbstractCegarLoop]: Abstraction has 1690 states and 2243 transitions. [2020-07-21 11:32:30,456 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:32:30,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1690 states and 2243 transitions. [2020-07-21 11:32:30,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-21 11:32:30,460 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:32:30,460 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:32:30,661 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:32:30,662 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:32:30,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:32:30,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1028566563, now seen corresponding path program 1 times [2020-07-21 11:32:30,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:32:30,663 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [428994921] [2020-07-21 11:32:30,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:32:30,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:32:30,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:32:30,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:32:30,804 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:32:30,805 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:32:30,805 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [428994921] [2020-07-21 11:32:30,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:32:30,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:32:30,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339072579] [2020-07-21 11:32:30,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:32:30,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:32:30,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:32:30,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:32:30,808 INFO L87 Difference]: Start difference. First operand 1690 states and 2243 transitions. Second operand 3 states. [2020-07-21 11:32:31,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:32:31,689 INFO L93 Difference]: Finished difference Result 2614 states and 3438 transitions. [2020-07-21 11:32:31,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:32:31,690 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-07-21 11:32:31,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:32:31,704 INFO L225 Difference]: With dead ends: 2614 [2020-07-21 11:32:31,704 INFO L226 Difference]: Without dead ends: 2612 [2020-07-21 11:32:31,706 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:32:31,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2612 states. [2020-07-21 11:32:31,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2612 to 1880. [2020-07-21 11:32:31,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1880 states. [2020-07-21 11:32:31,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1880 states to 1880 states and 2490 transitions. [2020-07-21 11:32:31,774 INFO L78 Accepts]: Start accepts. Automaton has 1880 states and 2490 transitions. Word has length 142 [2020-07-21 11:32:31,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:32:31,775 INFO L479 AbstractCegarLoop]: Abstraction has 1880 states and 2490 transitions. [2020-07-21 11:32:31,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:32:31,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1880 states and 2490 transitions. [2020-07-21 11:32:31,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-07-21 11:32:31,780 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:32:31,780 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 11:32:31,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:32:31,994 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:32:31,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:32:31,994 INFO L82 PathProgramCache]: Analyzing trace with hash 683468094, now seen corresponding path program 1 times [2020-07-21 11:32:31,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:32:31,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1466007371] [2020-07-21 11:32:31,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:32:32,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:32:32,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:32:32,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:32:32,152 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-07-21 11:32:32,152 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:32:32,152 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1466007371] [2020-07-21 11:32:32,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:32:32,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:32:32,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690498070] [2020-07-21 11:32:32,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:32:32,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:32:32,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:32:32,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:32:32,155 INFO L87 Difference]: Start difference. First operand 1880 states and 2490 transitions. Second operand 3 states. [2020-07-21 11:32:33,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:32:33,009 INFO L93 Difference]: Finished difference Result 4490 states and 5939 transitions. [2020-07-21 11:32:33,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:32:33,015 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 203 [2020-07-21 11:32:33,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:32:33,028 INFO L225 Difference]: With dead ends: 4490 [2020-07-21 11:32:33,028 INFO L226 Difference]: Without dead ends: 2616 [2020-07-21 11:32:33,033 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:32:33,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2616 states. [2020-07-21 11:32:33,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2616 to 2250. [2020-07-21 11:32:33,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2250 states. [2020-07-21 11:32:33,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2250 states to 2250 states and 2873 transitions. [2020-07-21 11:32:33,110 INFO L78 Accepts]: Start accepts. Automaton has 2250 states and 2873 transitions. Word has length 203 [2020-07-21 11:32:33,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:32:33,110 INFO L479 AbstractCegarLoop]: Abstraction has 2250 states and 2873 transitions. [2020-07-21 11:32:33,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:32:33,111 INFO L276 IsEmpty]: Start isEmpty. Operand 2250 states and 2873 transitions. [2020-07-21 11:32:33,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-07-21 11:32:33,116 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:32:33,118 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 11:32:33,331 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:32:33,332 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:32:33,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:32:33,333 INFO L82 PathProgramCache]: Analyzing trace with hash 511372486, now seen corresponding path program 1 times [2020-07-21 11:32:33,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:32:33,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [831822812] [2020-07-21 11:32:33,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:32:33,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:32:33,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 11:32:33,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:32:33,489 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 11:32:33,490 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:32:33,494 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:32:33,525 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:32:33,622 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-07-21 11:32:33,623 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:32:33,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [831822812] [2020-07-21 11:32:33,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:32:33,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:32:33,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490788879] [2020-07-21 11:32:33,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:32:33,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:32:33,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:32:33,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:32:33,625 INFO L87 Difference]: Start difference. First operand 2250 states and 2873 transitions. Second operand 5 states. [2020-07-21 11:32:34,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:32:34,999 INFO L93 Difference]: Finished difference Result 5086 states and 6441 transitions. [2020-07-21 11:32:35,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:32:35,000 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 233 [2020-07-21 11:32:35,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:32:35,012 INFO L225 Difference]: With dead ends: 5086 [2020-07-21 11:32:35,013 INFO L226 Difference]: Without dead ends: 2658 [2020-07-21 11:32:35,018 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:32:35,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2658 states. [2020-07-21 11:32:35,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2658 to 2066. [2020-07-21 11:32:35,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2066 states. [2020-07-21 11:32:35,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2066 states to 2066 states and 2616 transitions. [2020-07-21 11:32:35,076 INFO L78 Accepts]: Start accepts. Automaton has 2066 states and 2616 transitions. Word has length 233 [2020-07-21 11:32:35,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:32:35,076 INFO L479 AbstractCegarLoop]: Abstraction has 2066 states and 2616 transitions. [2020-07-21 11:32:35,076 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:32:35,076 INFO L276 IsEmpty]: Start isEmpty. Operand 2066 states and 2616 transitions. [2020-07-21 11:32:35,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2020-07-21 11:32:35,083 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:32:35,084 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:32:35,297 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:32:35,298 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:32:35,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:32:35,298 INFO L82 PathProgramCache]: Analyzing trace with hash -266552290, now seen corresponding path program 1 times [2020-07-21 11:32:35,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:32:35,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [108193810] [2020-07-21 11:32:35,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:32:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:32:35,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 11:32:35,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:32:35,509 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 4, 4, 1] term [2020-07-21 11:32:35,510 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:32:35,512 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:32:35,513 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 11:32:35,863 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 309 proven. 2 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-07-21 11:32:35,864 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:32:36,062 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 11:32:36,062 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:36,064 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 11:32:36,064 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:36,065 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:32:36,066 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:32:36,071 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:36,102 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:36,195 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 4, 4, 1] term [2020-07-21 11:32:36,195 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:36,688 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 125 proven. 223 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 11:32:36,688 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [108193810] [2020-07-21 11:32:36,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:32:36,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2020-07-21 11:32:36,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945201164] [2020-07-21 11:32:36,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-21 11:32:36,690 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:32:36,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-21 11:32:36,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2020-07-21 11:32:36,690 INFO L87 Difference]: Start difference. First operand 2066 states and 2616 transitions. Second operand 15 states. [2020-07-21 11:32:41,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:32:41,757 INFO L93 Difference]: Finished difference Result 5729 states and 7598 transitions. [2020-07-21 11:32:41,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-21 11:32:41,757 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 317 [2020-07-21 11:32:41,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:32:41,775 INFO L225 Difference]: With dead ends: 5729 [2020-07-21 11:32:41,775 INFO L226 Difference]: Without dead ends: 3606 [2020-07-21 11:32:41,783 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 667 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=294, Invalid=698, Unknown=0, NotChecked=0, Total=992 [2020-07-21 11:32:41,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3606 states. [2020-07-21 11:32:41,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3606 to 2628. [2020-07-21 11:32:41,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2628 states. [2020-07-21 11:32:41,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2628 states to 2628 states and 2926 transitions. [2020-07-21 11:32:41,858 INFO L78 Accepts]: Start accepts. Automaton has 2628 states and 2926 transitions. Word has length 317 [2020-07-21 11:32:41,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:32:41,860 INFO L479 AbstractCegarLoop]: Abstraction has 2628 states and 2926 transitions. [2020-07-21 11:32:41,860 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-21 11:32:41,861 INFO L276 IsEmpty]: Start isEmpty. Operand 2628 states and 2926 transitions. [2020-07-21 11:32:41,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 586 [2020-07-21 11:32:41,879 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:32:41,879 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:32:42,093 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:32:42,094 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:32:42,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:32:42,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1929187522, now seen corresponding path program 1 times [2020-07-21 11:32:42,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:32:42,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [171287517] [2020-07-21 11:32:42,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:32:42,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:32:42,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 879 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 11:32:42,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:32:42,502 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 891 proven. 2 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2020-07-21 11:32:42,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:32:42,622 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 11:32:42,622 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:42,623 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:42,624 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:43,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 436 proven. 184 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2020-07-21 11:32:43,048 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [171287517] [2020-07-21 11:32:43,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:32:43,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:32:43,048 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084804632] [2020-07-21 11:32:43,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:32:43,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:32:43,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:32:43,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:32:43,050 INFO L87 Difference]: Start difference. First operand 2628 states and 2926 transitions. Second operand 7 states. [2020-07-21 11:32:44,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:32:44,585 INFO L93 Difference]: Finished difference Result 6360 states and 7279 transitions. [2020-07-21 11:32:44,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 11:32:44,585 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 585 [2020-07-21 11:32:44,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:32:44,603 INFO L225 Difference]: With dead ends: 6360 [2020-07-21 11:32:44,603 INFO L226 Difference]: Without dead ends: 4104 [2020-07-21 11:32:44,610 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1178 GetRequests, 1168 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-21 11:32:44,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4104 states. [2020-07-21 11:32:44,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4104 to 3918. [2020-07-21 11:32:44,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3918 states. [2020-07-21 11:32:44,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3918 states to 3918 states and 4437 transitions. [2020-07-21 11:32:44,702 INFO L78 Accepts]: Start accepts. Automaton has 3918 states and 4437 transitions. Word has length 585 [2020-07-21 11:32:44,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:32:44,703 INFO L479 AbstractCegarLoop]: Abstraction has 3918 states and 4437 transitions. [2020-07-21 11:32:44,703 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:32:44,703 INFO L276 IsEmpty]: Start isEmpty. Operand 3918 states and 4437 transitions. [2020-07-21 11:32:44,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2020-07-21 11:32:44,725 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:32:44,726 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2020-07-21 11:32:44,940 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:32:44,941 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:32:44,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:32:44,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1935935179, now seen corresponding path program 1 times [2020-07-21 11:32:44,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:32:44,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [91955979] [2020-07-21 11:32:44,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:32:45,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:32:45,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 908 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 11:32:45,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:32:45,165 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 11:32:45,166 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:32:45,167 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 1] term [2020-07-21 11:32:45,167 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:32:45,186 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:32:45,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 790 proven. 2 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2020-07-21 11:32:45,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:32:45,892 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 36 [2020-07-21 11:32:45,957 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 11:32:45,958 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:45,959 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:45,960 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:45,961 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[5, 2, 1] term [2020-07-21 11:32:45,962 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 11:32:45,963 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 2, 1] term [2020-07-21 11:32:45,963 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:45,985 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:32:45,986 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:45,988 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:32:45,989 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 11:32:45,990 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:32:46,104 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:46,109 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:46,758 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 547 proven. 74 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2020-07-21 11:32:46,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [91955979] [2020-07-21 11:32:46,759 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:32:46,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:32:46,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308595611] [2020-07-21 11:32:46,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:32:46,760 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:32:46,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:32:46,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:32:46,761 INFO L87 Difference]: Start difference. First operand 3918 states and 4437 transitions. Second operand 7 states. [2020-07-21 11:32:48,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:32:48,828 INFO L93 Difference]: Finished difference Result 7842 states and 8936 transitions. [2020-07-21 11:32:48,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-21 11:32:48,829 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 614 [2020-07-21 11:32:48,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:32:48,846 INFO L225 Difference]: With dead ends: 7842 [2020-07-21 11:32:48,847 INFO L226 Difference]: Without dead ends: 3928 [2020-07-21 11:32:48,855 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1241 GetRequests, 1228 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2020-07-21 11:32:48,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3928 states. [2020-07-21 11:32:48,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3928 to 3918. [2020-07-21 11:32:48,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3918 states. [2020-07-21 11:32:48,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3918 states to 3918 states and 4383 transitions. [2020-07-21 11:32:48,943 INFO L78 Accepts]: Start accepts. Automaton has 3918 states and 4383 transitions. Word has length 614 [2020-07-21 11:32:48,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:32:48,944 INFO L479 AbstractCegarLoop]: Abstraction has 3918 states and 4383 transitions. [2020-07-21 11:32:48,944 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:32:48,944 INFO L276 IsEmpty]: Start isEmpty. Operand 3918 states and 4383 transitions. [2020-07-21 11:32:48,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2020-07-21 11:32:48,955 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:32:48,956 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:32:49,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:32:49,172 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:32:49,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:32:49,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1611163502, now seen corresponding path program 1 times [2020-07-21 11:32:49,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:32:49,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [216815508] [2020-07-21 11:32:49,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:32:49,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:32:49,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 921 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 11:32:49,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:32:49,444 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 11:32:49,444 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:32:49,445 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 1] term [2020-07-21 11:32:49,445 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:32:49,464 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:32:49,702 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 790 proven. 2 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2020-07-21 11:32:49,702 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:32:49,844 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2020-07-21 11:32:49,882 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 11:32:49,882 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:49,883 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:32:49,885 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:49,887 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:49,887 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:49,888 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:49,889 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:49,891 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[6, 2, 1] term [2020-07-21 11:32:49,891 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:49,915 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:32:49,915 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:49,916 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:32:49,917 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 11:32:49,917 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:32:50,029 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:50,035 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:50,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 547 proven. 74 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2020-07-21 11:32:50,643 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [216815508] [2020-07-21 11:32:50,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:32:50,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:32:50,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005593551] [2020-07-21 11:32:50,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:32:50,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:32:50,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:32:50,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:32:50,646 INFO L87 Difference]: Start difference. First operand 3918 states and 4383 transitions. Second operand 7 states. [2020-07-21 11:32:52,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:32:52,601 INFO L93 Difference]: Finished difference Result 7662 states and 8631 transitions. [2020-07-21 11:32:52,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 11:32:52,602 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 625 [2020-07-21 11:32:52,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:32:52,619 INFO L225 Difference]: With dead ends: 7662 [2020-07-21 11:32:52,619 INFO L226 Difference]: Without dead ends: 4116 [2020-07-21 11:32:52,628 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1255 GetRequests, 1246 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-07-21 11:32:52,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4116 states. [2020-07-21 11:32:52,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4116 to 4100. [2020-07-21 11:32:52,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4100 states. [2020-07-21 11:32:52,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4100 states to 4100 states and 4532 transitions. [2020-07-21 11:32:52,712 INFO L78 Accepts]: Start accepts. Automaton has 4100 states and 4532 transitions. Word has length 625 [2020-07-21 11:32:52,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:32:52,713 INFO L479 AbstractCegarLoop]: Abstraction has 4100 states and 4532 transitions. [2020-07-21 11:32:52,713 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:32:52,713 INFO L276 IsEmpty]: Start isEmpty. Operand 4100 states and 4532 transitions. [2020-07-21 11:32:52,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 688 [2020-07-21 11:32:52,724 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:32:52,724 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2020-07-21 11:32:52,937 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:32:52,938 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:32:52,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:32:52,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1977185226, now seen corresponding path program 1 times [2020-07-21 11:32:52,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:32:52,940 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [232693976] [2020-07-21 11:32:52,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:32:53,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:32:53,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 1018 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 11:32:53,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:32:53,192 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 11:32:53,192 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:32:53,193 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 1] term [2020-07-21 11:32:53,194 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:32:53,211 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:32:53,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 979 proven. 2 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2020-07-21 11:32:53,461 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:32:53,613 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 36 [2020-07-21 11:32:53,655 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 11:32:53,656 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:53,657 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:32:53,657 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:53,658 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:32:53,659 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:32:53,659 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:32:53,660 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:32:53,660 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:53,661 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:53,661 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:53,662 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:32:53,663 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:53,663 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:32:53,664 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 2, 1] term [2020-07-21 11:32:53,664 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:53,691 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:32:53,691 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:32:53,692 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:53,693 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 11:32:53,693 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:32:53,776 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:53,780 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:32:54,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 667 proven. 74 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2020-07-21 11:32:54,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [232693976] [2020-07-21 11:32:54,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:32:54,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:32:54,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506063630] [2020-07-21 11:32:54,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:32:54,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:32:54,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:32:54,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:32:54,443 INFO L87 Difference]: Start difference. First operand 4100 states and 4532 transitions. Second operand 7 states. [2020-07-21 11:32:56,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:32:56,461 INFO L93 Difference]: Finished difference Result 8012 states and 8884 transitions. [2020-07-21 11:32:56,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 11:32:56,464 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 687 [2020-07-21 11:32:56,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:32:56,486 INFO L225 Difference]: With dead ends: 8012 [2020-07-21 11:32:56,487 INFO L226 Difference]: Without dead ends: 4096 [2020-07-21 11:32:56,502 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1381 GetRequests, 1371 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-07-21 11:32:56,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4096 states. [2020-07-21 11:32:56,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4096 to 3366. [2020-07-21 11:32:56,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3366 states. [2020-07-21 11:32:56,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3366 states to 3366 states and 3703 transitions. [2020-07-21 11:32:56,561 INFO L78 Accepts]: Start accepts. Automaton has 3366 states and 3703 transitions. Word has length 687 [2020-07-21 11:32:56,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:32:56,562 INFO L479 AbstractCegarLoop]: Abstraction has 3366 states and 3703 transitions. [2020-07-21 11:32:56,562 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:32:56,562 INFO L276 IsEmpty]: Start isEmpty. Operand 3366 states and 3703 transitions. [2020-07-21 11:32:56,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2020-07-21 11:32:56,571 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:32:56,571 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:32:56,785 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:32:56,786 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:32:56,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:32:56,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1248418757, now seen corresponding path program 1 times [2020-07-21 11:32:56,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:32:56,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [322207111] [2020-07-21 11:32:56,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:32:56,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:32:56,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 1049 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:32:56,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:32:57,237 INFO L134 CoverageAnalysis]: Checked inductivity of 1578 backedges. 1098 proven. 2 refuted. 0 times theorem prover too weak. 478 trivial. 0 not checked. [2020-07-21 11:32:57,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:32:57,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1578 backedges. 496 proven. 148 refuted. 0 times theorem prover too weak. 934 trivial. 0 not checked. [2020-07-21 11:32:57,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [322207111] [2020-07-21 11:32:57,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:32:57,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 11:32:57,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465263808] [2020-07-21 11:32:57,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:32:57,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:32:57,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:32:57,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:32:57,626 INFO L87 Difference]: Start difference. First operand 3366 states and 3703 transitions. Second operand 6 states. [2020-07-21 11:32:58,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:32:58,645 INFO L93 Difference]: Finished difference Result 7272 states and 8030 transitions. [2020-07-21 11:32:58,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:32:58,646 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 712 [2020-07-21 11:32:58,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:32:58,658 INFO L225 Difference]: With dead ends: 7272 [2020-07-21 11:32:58,658 INFO L226 Difference]: Without dead ends: 4278 [2020-07-21 11:32:58,664 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1429 GetRequests, 1420 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:32:58,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4278 states. [2020-07-21 11:32:58,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4278 to 4278. [2020-07-21 11:32:58,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4278 states. [2020-07-21 11:32:58,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4278 states to 4278 states and 4643 transitions. [2020-07-21 11:32:58,764 INFO L78 Accepts]: Start accepts. Automaton has 4278 states and 4643 transitions. Word has length 712 [2020-07-21 11:32:58,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:32:58,765 INFO L479 AbstractCegarLoop]: Abstraction has 4278 states and 4643 transitions. [2020-07-21 11:32:58,765 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:32:58,765 INFO L276 IsEmpty]: Start isEmpty. Operand 4278 states and 4643 transitions. [2020-07-21 11:32:58,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 872 [2020-07-21 11:32:58,777 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:32:58,778 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:32:58,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:32:58,994 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:32:58,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:32:58,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1556654866, now seen corresponding path program 1 times [2020-07-21 11:32:58,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:32:58,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1298051211] [2020-07-21 11:32:58,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:32:59,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:32:59,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 1248 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:32:59,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:32:59,587 INFO L134 CoverageAnalysis]: Checked inductivity of 2263 backedges. 1450 proven. 2 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2020-07-21 11:32:59,587 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:32:59,994 INFO L134 CoverageAnalysis]: Checked inductivity of 2263 backedges. 623 proven. 148 refuted. 0 times theorem prover too weak. 1492 trivial. 0 not checked. [2020-07-21 11:32:59,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1298051211] [2020-07-21 11:32:59,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:32:59,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 11:32:59,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790703554] [2020-07-21 11:32:59,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:32:59,996 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:32:59,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:32:59,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:32:59,997 INFO L87 Difference]: Start difference. First operand 4278 states and 4643 transitions. Second operand 6 states. [2020-07-21 11:33:01,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:33:01,024 INFO L93 Difference]: Finished difference Result 8736 states and 9569 transitions. [2020-07-21 11:33:01,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:33:01,028 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 871 [2020-07-21 11:33:01,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:33:01,039 INFO L225 Difference]: With dead ends: 8736 [2020-07-21 11:33:01,040 INFO L226 Difference]: Without dead ends: 4830 [2020-07-21 11:33:01,047 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1747 GetRequests, 1738 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:33:01,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4830 states. [2020-07-21 11:33:01,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4830 to 4830. [2020-07-21 11:33:01,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4830 states. [2020-07-21 11:33:01,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4830 states to 4830 states and 5241 transitions. [2020-07-21 11:33:01,126 INFO L78 Accepts]: Start accepts. Automaton has 4830 states and 5241 transitions. Word has length 871 [2020-07-21 11:33:01,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:33:01,127 INFO L479 AbstractCegarLoop]: Abstraction has 4830 states and 5241 transitions. [2020-07-21 11:33:01,127 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:33:01,127 INFO L276 IsEmpty]: Start isEmpty. Operand 4830 states and 5241 transitions. [2020-07-21 11:33:01,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 883 [2020-07-21 11:33:01,141 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:33:01,141 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:33:01,354 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:33:01,355 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:33:01,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:33:01,355 INFO L82 PathProgramCache]: Analyzing trace with hash 441635001, now seen corresponding path program 1 times [2020-07-21 11:33:01,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:33:01,356 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [174155624] [2020-07-21 11:33:01,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:33:01,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:33:01,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 1256 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:33:01,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:33:01,640 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:33:01,983 INFO L134 CoverageAnalysis]: Checked inductivity of 2267 backedges. 1596 proven. 2 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2020-07-21 11:33:01,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:33:02,110 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 11:33:02,111 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:33:02,998 INFO L134 CoverageAnalysis]: Checked inductivity of 2267 backedges. 649 proven. 323 refuted. 0 times theorem prover too weak. 1295 trivial. 0 not checked. [2020-07-21 11:33:02,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [174155624] [2020-07-21 11:33:02,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:33:02,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 11:33:02,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145422209] [2020-07-21 11:33:03,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:33:03,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:33:03,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:33:03,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:33:03,001 INFO L87 Difference]: Start difference. First operand 4830 states and 5241 transitions. Second operand 6 states. [2020-07-21 11:33:04,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:33:04,067 INFO L93 Difference]: Finished difference Result 9848 states and 10770 transitions. [2020-07-21 11:33:04,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-21 11:33:04,068 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 882 [2020-07-21 11:33:04,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:33:04,084 INFO L225 Difference]: With dead ends: 9848 [2020-07-21 11:33:04,084 INFO L226 Difference]: Without dead ends: 5390 [2020-07-21 11:33:04,094 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1769 GetRequests, 1760 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:33:04,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5390 states. [2020-07-21 11:33:04,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5390 to 5196. [2020-07-21 11:33:04,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5196 states. [2020-07-21 11:33:04,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5196 states to 5196 states and 5626 transitions. [2020-07-21 11:33:04,195 INFO L78 Accepts]: Start accepts. Automaton has 5196 states and 5626 transitions. Word has length 882 [2020-07-21 11:33:04,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:33:04,196 INFO L479 AbstractCegarLoop]: Abstraction has 5196 states and 5626 transitions. [2020-07-21 11:33:04,196 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:33:04,196 INFO L276 IsEmpty]: Start isEmpty. Operand 5196 states and 5626 transitions. [2020-07-21 11:33:04,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 971 [2020-07-21 11:33:04,213 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:33:04,214 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:33:04,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:33:04,428 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:33:04,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:33:04,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1319533531, now seen corresponding path program 1 times [2020-07-21 11:33:04,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:33:04,430 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [339322328] [2020-07-21 11:33:04,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:33:04,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:33:04,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 1382 conjuncts, 21 conjunts are in the unsatisfiable core [2020-07-21 11:33:04,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:33:04,744 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 11:33:04,745 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 11:33:04,919 INFO L501 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-07-21 11:33:05,612 INFO L134 CoverageAnalysis]: Checked inductivity of 2876 backedges. 1513 proven. 10 refuted. 0 times theorem prover too weak. 1353 trivial. 0 not checked. [2020-07-21 11:33:05,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:33:05,740 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 11:33:05,740 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:33:05,741 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:33:05,741 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:33:05,742 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 11:33:05,742 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:33:06,013 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:33:06,014 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:33:06,021 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 11:33:06,039 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:33:06,040 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:33:06,044 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 11:33:07,016 INFO L134 CoverageAnalysis]: Checked inductivity of 2876 backedges. 1449 proven. 74 refuted. 0 times theorem prover too weak. 1353 trivial. 0 not checked. [2020-07-21 11:33:07,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [339322328] [2020-07-21 11:33:07,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:33:07,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2020-07-21 11:33:07,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401480751] [2020-07-21 11:33:07,018 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-21 11:33:07,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:33:07,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-21 11:33:07,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2020-07-21 11:33:07,019 INFO L87 Difference]: Start difference. First operand 5196 states and 5626 transitions. Second operand 14 states. [2020-07-21 11:33:11,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:33:11,472 INFO L93 Difference]: Finished difference Result 10752 states and 11721 transitions. [2020-07-21 11:33:11,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-07-21 11:33:11,473 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 970 [2020-07-21 11:33:11,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:33:11,488 INFO L225 Difference]: With dead ends: 10752 [2020-07-21 11:33:11,488 INFO L226 Difference]: Without dead ends: 5928 [2020-07-21 11:33:11,498 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1973 GetRequests, 1939 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=333, Invalid=857, Unknown=0, NotChecked=0, Total=1190 [2020-07-21 11:33:11,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5928 states. [2020-07-21 11:33:11,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5928 to 5744. [2020-07-21 11:33:11,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5744 states. [2020-07-21 11:33:11,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5744 states to 5744 states and 6189 transitions. [2020-07-21 11:33:11,595 INFO L78 Accepts]: Start accepts. Automaton has 5744 states and 6189 transitions. Word has length 970 [2020-07-21 11:33:11,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:33:11,596 INFO L479 AbstractCegarLoop]: Abstraction has 5744 states and 6189 transitions. [2020-07-21 11:33:11,596 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-21 11:33:11,597 INFO L276 IsEmpty]: Start isEmpty. Operand 5744 states and 6189 transitions. [2020-07-21 11:33:11,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1515 [2020-07-21 11:33:11,625 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:33:11,626 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:33:11,841 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:33:11,841 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:33:11,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:33:11,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1398103861, now seen corresponding path program 1 times [2020-07-21 11:33:11,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:33:11,842 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2141417939] [2020-07-21 11:33:11,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:33:12,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:33:12,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 2039 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:33:12,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:33:12,318 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 11:33:12,319 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 11:33:12,320 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 11:33:12,320 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 11:33:12,321 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 11:33:12,322 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 11:33:12,324 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 11:33:12,325 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 11:33:14,432 WARN L193 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 68 DAG size of output: 26 [2020-07-21 11:33:15,629 INFO L134 CoverageAnalysis]: Checked inductivity of 6489 backedges. 470 proven. 0 refuted. 0 times theorem prover too weak. 6019 trivial. 0 not checked. [2020-07-21 11:33:15,629 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:33:15,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2141417939] [2020-07-21 11:33:15,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:33:15,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:33:15,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504813628] [2020-07-21 11:33:15,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:33:15,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:33:15,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:33:15,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:33:15,631 INFO L87 Difference]: Start difference. First operand 5744 states and 6189 transitions. Second operand 3 states. [2020-07-21 11:33:17,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:33:17,039 INFO L93 Difference]: Finished difference Result 12770 states and 13932 transitions. [2020-07-21 11:33:17,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:33:17,040 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1514 [2020-07-21 11:33:17,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:33:17,076 INFO L225 Difference]: With dead ends: 12770 [2020-07-21 11:33:17,076 INFO L226 Difference]: Without dead ends: 6840 [2020-07-21 11:33:17,091 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1513 GetRequests, 1512 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:33:17,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6840 states. [2020-07-21 11:33:17,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6840 to 6294. [2020-07-21 11:33:17,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6294 states. [2020-07-21 11:33:17,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6294 states to 6294 states and 6743 transitions. [2020-07-21 11:33:17,229 INFO L78 Accepts]: Start accepts. Automaton has 6294 states and 6743 transitions. Word has length 1514 [2020-07-21 11:33:17,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:33:17,231 INFO L479 AbstractCegarLoop]: Abstraction has 6294 states and 6743 transitions. [2020-07-21 11:33:17,231 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:33:17,231 INFO L276 IsEmpty]: Start isEmpty. Operand 6294 states and 6743 transitions. [2020-07-21 11:33:17,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1524 [2020-07-21 11:33:17,259 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:33:17,261 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 6, 6, 6, 6, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:33:17,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:33:17,476 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:33:17,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:33:17,476 INFO L82 PathProgramCache]: Analyzing trace with hash -681051210, now seen corresponding path program 1 times [2020-07-21 11:33:17,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:33:17,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1959306520] [2020-07-21 11:33:17,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:33:17,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:33:17,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 2085 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 11:33:17,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:33:17,962 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 3, 1] term [2020-07-21 11:33:17,962 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 11:33:17,963 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 11:33:17,994 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:33:19,106 INFO L134 CoverageAnalysis]: Checked inductivity of 7113 backedges. 1322 proven. 2 refuted. 0 times theorem prover too weak. 5789 trivial. 0 not checked. [2020-07-21 11:33:19,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:33:19,249 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:33:19,250 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 11:33:19,251 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:33:19,251 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 11:33:19,288 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:33:19,289 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:33:19,290 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:33:19,290 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 11:33:19,290 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:33:19,382 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:33:19,385 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:33:21,058 INFO L134 CoverageAnalysis]: Checked inductivity of 7113 backedges. 1322 proven. 2 refuted. 0 times theorem prover too weak. 5789 trivial. 0 not checked. [2020-07-21 11:33:21,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1959306520] [2020-07-21 11:33:21,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:33:21,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:33:21,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299851274] [2020-07-21 11:33:21,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:33:21,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:33:21,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:33:21,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:33:21,062 INFO L87 Difference]: Start difference. First operand 6294 states and 6743 transitions. Second operand 7 states. [2020-07-21 11:33:22,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:33:22,987 INFO L93 Difference]: Finished difference Result 12594 states and 13539 transitions. [2020-07-21 11:33:22,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-21 11:33:22,992 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1523 [2020-07-21 11:33:22,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:33:23,012 INFO L225 Difference]: With dead ends: 12594 [2020-07-21 11:33:23,012 INFO L226 Difference]: Without dead ends: 6672 [2020-07-21 11:33:23,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3055 GetRequests, 3044 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-21 11:33:23,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6672 states. [2020-07-21 11:33:23,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6672 to 6110. [2020-07-21 11:33:23,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6110 states. [2020-07-21 11:33:23,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6110 states to 6110 states and 6548 transitions. [2020-07-21 11:33:23,146 INFO L78 Accepts]: Start accepts. Automaton has 6110 states and 6548 transitions. Word has length 1523 [2020-07-21 11:33:23,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:33:23,148 INFO L479 AbstractCegarLoop]: Abstraction has 6110 states and 6548 transitions. [2020-07-21 11:33:23,148 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:33:23,148 INFO L276 IsEmpty]: Start isEmpty. Operand 6110 states and 6548 transitions. [2020-07-21 11:33:23,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1651 [2020-07-21 11:33:23,188 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:33:23,189 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:33:23,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:33:23,402 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:33:23,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:33:23,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1464304767, now seen corresponding path program 1 times [2020-07-21 11:33:23,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:33:23,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [775324021] [2020-07-21 11:33:23,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:33:23,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:33:23,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 2251 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 11:33:23,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:33:23,886 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:33:23,887 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 11:33:27,671 WARN L193 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 24 DAG size of output: 22 [2020-07-21 11:33:29,699 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 11:33:32,970 INFO L134 CoverageAnalysis]: Checked inductivity of 8459 backedges. 2514 proven. 88 refuted. 0 times theorem prover too weak. 5857 trivial. 0 not checked. [2020-07-21 11:33:32,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:33:33,008 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 11:33:33,009 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 11:33:33,041 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [775324021] [2020-07-21 11:33:33,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-21 11:33:33,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-07-21 11:33:33,042 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013784291] [2020-07-21 11:33:33,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 11:33:33,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:33:33,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 11:33:33,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=59, Unknown=2, NotChecked=0, Total=90 [2020-07-21 11:33:33,044 INFO L87 Difference]: Start difference. First operand 6110 states and 6548 transitions. Second operand 8 states. [2020-07-21 11:33:42,310 WARN L193 SmtUtils]: Spent 8.05 s on a formula simplification. DAG size of input: 25 DAG size of output: 16 [2020-07-21 11:34:02,035 WARN L193 SmtUtils]: Spent 6.14 s on a formula simplification. DAG size of input: 32 DAG size of output: 13 [2020-07-21 11:34:20,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:34:20,349 INFO L93 Difference]: Finished difference Result 13532 states and 14669 transitions. [2020-07-21 11:34:20,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-21 11:34:20,374 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1650 [2020-07-21 11:34:20,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:34:20,375 INFO L225 Difference]: With dead ends: 13532 [2020-07-21 11:34:20,375 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 11:34:20,391 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1705 GetRequests, 1689 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 24.3s TimeCoverageRelationStatistics Valid=100, Invalid=169, Unknown=3, NotChecked=0, Total=272 [2020-07-21 11:34:20,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 11:34:20,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 11:34:20,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 11:34:20,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 11:34:20,392 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1650 [2020-07-21 11:34:20,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:34:20,392 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 11:34:20,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 11:34:20,393 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 11:34:20,393 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 11:34:20,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:34:20,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 11:34:22,392 WARN L193 SmtUtils]: Spent 619.00 ms on a formula simplification. DAG size of input: 389 DAG size of output: 344 [2020-07-21 11:34:22,891 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 389 DAG size of output: 344 [2020-07-21 11:34:23,089 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 32 [2020-07-21 11:34:28,057 WARN L193 SmtUtils]: Spent 4.92 s on a formula simplification. DAG size of input: 476 DAG size of output: 176 [2020-07-21 11:34:59,417 WARN L193 SmtUtils]: Spent 31.32 s on a formula simplification. DAG size of input: 396 DAG size of output: 124 [2020-07-21 11:35:31,479 WARN L193 SmtUtils]: Spent 32.06 s on a formula simplification. DAG size of input: 396 DAG size of output: 124 [2020-07-21 11:35:31,484 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:35:31,485 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a12~0 |old(~a12~0)|) (<= |old(~a12~0)| ~a12~0) (<= ~a15~0 |old(~a15~0)|) (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (<= |old(~a15~0)| ~a15~0)) [2020-07-21 11:35:31,485 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:35:31,485 INFO L268 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2020-07-21 11:35:31,485 INFO L268 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2020-07-21 11:35:31,485 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,485 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,485 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,485 INFO L268 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2020-07-21 11:35:31,485 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 11:35:31,485 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 11:35:31,486 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 11:35:31,486 INFO L268 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2020-07-21 11:35:31,486 INFO L268 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2020-07-21 11:35:31,486 INFO L268 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2020-07-21 11:35:31,486 INFO L268 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2020-07-21 11:35:31,486 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,486 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,486 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,486 INFO L268 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2020-07-21 11:35:31,487 INFO L268 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2020-07-21 11:35:31,487 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 11:35:31,487 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 11:35:31,487 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 11:35:31,487 INFO L268 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2020-07-21 11:35:31,487 INFO L268 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2020-07-21 11:35:31,487 INFO L268 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2020-07-21 11:35:31,487 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,487 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,487 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,487 INFO L268 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2020-07-21 11:35:31,488 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 11:35:31,488 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 11:35:31,488 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 11:35:31,488 INFO L268 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2020-07-21 11:35:31,488 INFO L268 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2020-07-21 11:35:31,488 INFO L268 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2020-07-21 11:35:31,488 INFO L268 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2020-07-21 11:35:31,488 INFO L268 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2020-07-21 11:35:31,488 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,488 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,488 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,489 INFO L268 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2020-07-21 11:35:31,489 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 11:35:31,489 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 11:35:31,489 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 11:35:31,489 INFO L268 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2020-07-21 11:35:31,489 INFO L268 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2020-07-21 11:35:31,489 INFO L268 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2020-07-21 11:35:31,489 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,490 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,490 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,490 INFO L268 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2020-07-21 11:35:31,490 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 11:35:31,490 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 11:35:31,490 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 11:35:31,490 INFO L268 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2020-07-21 11:35:31,490 INFO L268 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2020-07-21 11:35:31,491 INFO L268 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2020-07-21 11:35:31,491 INFO L268 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2020-07-21 11:35:31,491 INFO L268 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2020-07-21 11:35:31,491 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,491 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,491 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,491 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,491 INFO L268 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2020-07-21 11:35:31,491 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 11:35:31,491 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 11:35:31,492 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 11:35:31,492 INFO L268 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2020-07-21 11:35:31,492 INFO L268 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2020-07-21 11:35:31,492 INFO L268 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2020-07-21 11:35:31,492 INFO L268 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2020-07-21 11:35:31,492 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,492 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,492 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,492 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 11:35:31,492 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 11:35:31,493 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 11:35:31,493 INFO L268 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2020-07-21 11:35:31,493 INFO L268 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2020-07-21 11:35:31,493 INFO L268 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2020-07-21 11:35:31,493 INFO L268 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2020-07-21 11:35:31,493 INFO L268 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2020-07-21 11:35:31,493 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,493 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,493 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,493 INFO L268 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2020-07-21 11:35:31,493 INFO L268 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2020-07-21 11:35:31,493 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 11:35:31,493 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 11:35:31,494 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 11:35:31,494 INFO L268 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2020-07-21 11:35:31,494 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse20 (<= ~a21~0 |old(~a21~0)|)) (.cse21 (<= |old(~a21~0)| ~a21~0)) (.cse3 (<= ~a12~0 |old(~a12~0)|)) (.cse19 (<= |old(~a12~0)| ~a12~0)) (.cse5 (= ~a24~0 |old(~a24~0)|)) (.cse4 (<= ~a15~0 |old(~a15~0)|)) (.cse6 (= ~a21~0 |old(~a21~0)|)) (.cse7 (<= |old(~a15~0)| ~a15~0)) (.cse26 (not (< |old(~a21~0)| 6)))) (let ((.cse8 (and (not (< |old(~a24~0)| 2)) .cse26)) (.cse22 (not (<= 10 |old(~a21~0)|))) (.cse13 (and .cse26 (not (< 5 |old(~a15~0)|)))) (.cse0 (not (<= |old(~a24~0)| 1))) (.cse1 (not (<= |old(~a21~0)| 6))) (.cse25 (and .cse3 .cse19 .cse5 .cse4 .cse6 .cse7)) (.cse12 (not (<= |old(~a15~0)| 8))) (.cse9 (not (< |old(~a12~0)| 81))) (.cse2 (not (<= |old(~a15~0)| 5))) (.cse18 (= 2 |old(~a24~0)|)) (.cse23 (not (<= 19 |old(~a12~0)|))) (.cse10 (not (<= 7 |old(~a21~0)|))) (.cse11 (and .cse3 .cse19 .cse20 .cse5 .cse4 .cse7 .cse21)) (.cse17 (not (<= 7 |old(~a15~0)|))) (.cse24 (not (< |old(~a12~0)| 600007)))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4 .cse5 .cse6 .cse7)) (or .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 (and (not (< |old(~a12~0)| 12)) (not (< |old(~a21~0)| 9)))) (or .cse0 (forall ((v_~a12~0_647 Int)) (let ((.cse14 (+ v_~a12~0_647 366333))) (or (not (< 11 v_~a12~0_647)) (not (<= |old(~a12~0)| (div .cse14 5))) (not (<= v_~a12~0_647 80)) (not (<= 0 .cse14))))) .cse1 (forall ((v_~a12~0_684 Int)) (let ((.cse15 (div (+ (* v_~a12~0_684 10) 2779120) 9))) (or (not (<= .cse15 437300)) (not (<= v_~a12~0_684 11)) (not (< 0 (+ v_~a12~0_684 43))) (not (<= (div (+ (* .cse15 (- 1)) 437300) 10) |old(~a12~0)|)) (not (<= 0 (+ (* 10 v_~a12~0_684) 2779120)))))) (and .cse3 (exists ((v_~a12~0_684 Int)) (let ((.cse16 (div (+ (* v_~a12~0_684 10) 2779120) 9))) (and (<= 0 (+ (* 10 v_~a12~0_684) 2779120)) (<= (div (+ (* .cse16 (- 1)) 437300) 10) ~a12~0) (<= v_~a12~0_684 11) (< 0 (+ v_~a12~0_684 43)) (<= .cse16 437300)))) .cse5 .cse4 .cse6 .cse7) .cse12 .cse13) (or .cse10 .cse11 (not (<= |old(~a12~0)| 11)) .cse17 .cse18) (or (not (<= (+ |old(~a12~0)| 43) 0)) (and .cse3 .cse19 .cse20 .cse4 .cse5 .cse7 .cse21) .cse2 (not (<= |old(~a21~0)| 8))) (or .cse22 .cse2 (and .cse3 .cse5 .cse4 .cse6)) (or .cse23 .cse8 .cse10 .cse11 .cse13 .cse24) (or .cse0 (not (<= 95381 |old(~a12~0)|)) .cse11 .cse17 .cse24) (or .cse22 .cse25 .cse12 .cse24) (or .cse0 .cse1 (forall ((v_prenex_2 Int)) (or (not (<= (+ (mod v_prenex_2 34) 13) |old(~a12~0)|)) (not (<= 0 v_prenex_2)) (not (<= 95381 v_prenex_2)))) .cse25 (not (<= |old(~a12~0)| 72)) .cse12 .cse13) (or .cse0 .cse1 .cse25 .cse17 .cse12 .cse24) (or (and .cse3 .cse20 .cse4 .cse21) (not (<= (+ |old(~a12~0)| 49) 0)) .cse2) (or .cse9 .cse2 .cse18 (and .cse3 .cse20 .cse4 .cse5 .cse21)) (or .cse23 .cse10 .cse11 .cse17 .cse24)))) [2020-07-21 11:35:31,494 INFO L268 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2020-07-21 11:35:31,495 INFO L268 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2020-07-21 11:35:31,495 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,495 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,495 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,495 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 11:35:31,495 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 11:35:31,495 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 11:35:31,495 INFO L268 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2020-07-21 11:35:31,495 INFO L268 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2020-07-21 11:35:31,496 INFO L268 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2020-07-21 11:35:31,496 INFO L268 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2020-07-21 11:35:31,496 INFO L268 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2020-07-21 11:35:31,496 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,496 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,496 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,496 INFO L268 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2020-07-21 11:35:31,496 INFO L268 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2020-07-21 11:35:31,496 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 11:35:31,496 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 11:35:31,497 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 11:35:31,497 INFO L268 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2020-07-21 11:35:31,497 INFO L268 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2020-07-21 11:35:31,497 INFO L268 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2020-07-21 11:35:31,497 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,497 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,497 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,497 INFO L268 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2020-07-21 11:35:31,498 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 11:35:31,498 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 11:35:31,498 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 11:35:31,498 INFO L268 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2020-07-21 11:35:31,498 INFO L268 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2020-07-21 11:35:31,498 INFO L268 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2020-07-21 11:35:31,498 INFO L268 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2020-07-21 11:35:31,498 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,498 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,498 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,499 INFO L268 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2020-07-21 11:35:31,499 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 11:35:31,499 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 11:35:31,499 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 11:35:31,499 INFO L268 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2020-07-21 11:35:31,499 INFO L268 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2020-07-21 11:35:31,499 INFO L268 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2020-07-21 11:35:31,499 INFO L268 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2020-07-21 11:35:31,500 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,500 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,500 INFO L268 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2020-07-21 11:35:31,500 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 11:35:31,500 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 11:35:31,500 INFO L268 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2020-07-21 11:35:31,500 INFO L268 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2020-07-21 11:35:31,500 INFO L268 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2020-07-21 11:35:31,500 INFO L268 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2020-07-21 11:35:31,500 INFO L268 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2020-07-21 11:35:31,501 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 127) no Hoare annotation was computed. [2020-07-21 11:35:31,501 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,501 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,501 INFO L268 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2020-07-21 11:35:31,501 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 11:35:31,501 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 11:35:31,501 INFO L268 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2020-07-21 11:35:31,501 INFO L268 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2020-07-21 11:35:31,501 INFO L268 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2020-07-21 11:35:31,501 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,502 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,502 INFO L268 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2020-07-21 11:35:31,502 INFO L268 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2020-07-21 11:35:31,502 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 11:35:31,502 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 11:35:31,502 INFO L268 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2020-07-21 11:35:31,502 INFO L268 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2020-07-21 11:35:31,502 INFO L268 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2020-07-21 11:35:31,502 INFO L268 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2020-07-21 11:35:31,502 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,502 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,502 INFO L268 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2020-07-21 11:35:31,502 INFO L268 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2020-07-21 11:35:31,502 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 11:35:31,502 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 11:35:31,503 INFO L268 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2020-07-21 11:35:31,503 INFO L268 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2020-07-21 11:35:31,503 INFO L268 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2020-07-21 11:35:31,503 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,503 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,503 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,503 INFO L268 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2020-07-21 11:35:31,503 INFO L268 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2020-07-21 11:35:31,503 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 11:35:31,503 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 11:35:31,503 INFO L268 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2020-07-21 11:35:31,503 INFO L268 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2020-07-21 11:35:31,503 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,503 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,504 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 11:35:31,504 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,504 INFO L268 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2020-07-21 11:35:31,504 INFO L268 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2020-07-21 11:35:31,504 INFO L268 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2020-07-21 11:35:31,504 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 11:35:31,504 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 11:35:31,504 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 11:35:31,504 INFO L268 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2020-07-21 11:35:31,504 INFO L268 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2020-07-21 11:35:31,504 INFO L268 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2020-07-21 11:35:31,504 INFO L268 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2020-07-21 11:35:31,504 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,504 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,504 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,505 INFO L268 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2020-07-21 11:35:31,505 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 11:35:31,505 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 11:35:31,505 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 11:35:31,505 INFO L268 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2020-07-21 11:35:31,505 INFO L268 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2020-07-21 11:35:31,505 INFO L268 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2020-07-21 11:35:31,505 INFO L268 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2020-07-21 11:35:31,505 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,505 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,505 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,505 INFO L268 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2020-07-21 11:35:31,505 INFO L268 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2020-07-21 11:35:31,506 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 11:35:31,506 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 11:35:31,506 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 11:35:31,506 INFO L268 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2020-07-21 11:35:31,506 INFO L268 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2020-07-21 11:35:31,506 INFO L268 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2020-07-21 11:35:31,506 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,506 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,506 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,507 INFO L268 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2020-07-21 11:35:31,507 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 11:35:31,507 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 11:35:31,507 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 11:35:31,507 INFO L268 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2020-07-21 11:35:31,507 INFO L268 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2020-07-21 11:35:31,507 INFO L268 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2020-07-21 11:35:31,507 INFO L268 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2020-07-21 11:35:31,507 INFO L268 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2020-07-21 11:35:31,507 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,508 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,508 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2020-07-21 11:35:31,508 INFO L268 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2020-07-21 11:35:31,508 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 11:35:31,508 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 11:35:31,508 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 11:35:31,508 INFO L268 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2020-07-21 11:35:31,508 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:35:31,509 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= (+ ~a12~0 49) 0) (<= 7 ~a15~0) (< ~a15~0 9) (= 1 ~a24~0) (<= 7 ~a21~0) (<= ~a21~0 7)) [2020-07-21 11:35:31,509 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 11:35:31,509 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:35:31,509 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= 7 |old(~a21~0)|)) (not (= 1 |old(~a24~0)|)) (not (<= (+ |old(~a12~0)| 49) 0)) (and (<= ~a12~0 |old(~a12~0)|) (<= |old(~a12~0)| ~a12~0) (<= ~a15~0 |old(~a15~0)|) (= 7 ~a21~0) (= 1 ~a24~0) (<= |old(~a15~0)| ~a15~0)) (not (<= 7 |old(~a15~0)|)) (not (<= |old(~a15~0)| 8))) [2020-07-21 11:35:31,509 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2020-07-21 11:35:31,510 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (let ((.cse16 (< ~a21~0 6))) (let ((.cse9 (exists ((v_~a12~0_647 Int)) (let ((.cse17 (+ v_~a12~0_647 366333))) (and (< 11 v_~a12~0_647) (<= 0 .cse17) (<= v_~a12~0_647 80) (<= ~a12~0 (div .cse17 5)))))) (.cse4 (<= ~a24~0 1)) (.cse5 (<= ~a21~0 6)) (.cse0 (<= 7 ~a15~0)) (.cse13 (not (= 2 ~a24~0))) (.cse6 (or (< 5 ~a15~0) .cse16)) (.cse1 (< ~a12~0 600007)) (.cse8 (<= ~a15~0 8)) (.cse3 (<= 19 ~a12~0)) (.cse14 (<= 10 ~a21~0)) (.cse15 (<= ~a12~0 11)) (.cse11 (or (< ~a24~0 2) .cse16)) (.cse2 (<= 7 ~a21~0)) (.cse10 (<= ~a15~0 5)) (.cse12 (<= ~a21~0 8))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 (exists ((v_~a12~0_684 Int)) (let ((.cse7 (div (+ (* v_~a12~0_684 10) 2779120) 9))) (and (<= 0 (+ (* 10 v_~a12~0_684) 2779120)) (<= (div (+ (* .cse7 (- 1)) 437300) 10) ~a12~0) (<= v_~a12~0_684 11) (< 0 (+ v_~a12~0_684 43)) (<= .cse7 437300)))) .cse8 .cse9) (not (= 1 |old(~a24~0)|)) (and .cse4 .cse1 (<= 95381 ~a12~0) (<= 8 ~a15~0)) (and .cse4 .cse5 .cse0 .cse1 .cse8) (and (<= (+ ~a12~0 49) 0) .cse10) (and .cse4 .cse5 .cse6 (exists ((v_prenex_2 Int)) (and (<= 0 v_prenex_2) (<= 95381 v_prenex_2) (<= (+ (mod v_prenex_2 34) 13) ~a12~0))) .cse8 (<= ~a12~0 72)) (and .cse6 .cse11 .cse12 .cse8 .cse2 .cse9) (not (<= 7 |old(~a15~0)|)) (not (<= |old(~a15~0)| 8)) (and .cse10 (< ~a12~0 81) .cse13) (and .cse4 .cse5 .cse10) (and .cse1 .cse8 .cse2 .cse14) (and .cse0 .cse15 .cse13 .cse2) (not (= 7 |old(~a21~0)|)) (and .cse6 .cse1 .cse11 .cse8 .cse2 .cse3) (not (<= (+ |old(~a12~0)| 49) 0)) (and .cse10 .cse14) (and .cse15 .cse11 .cse2) (and .cse10 .cse12 (<= (+ ~a12~0 43) 0))))) [2020-07-21 11:35:31,510 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-07-21 11:35:31,510 INFO L268 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2020-07-21 11:35:31,510 INFO L264 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse16 (< ~a21~0 6))) (let ((.cse9 (exists ((v_~a12~0_647 Int)) (let ((.cse17 (+ v_~a12~0_647 366333))) (and (< 11 v_~a12~0_647) (<= 0 .cse17) (<= v_~a12~0_647 80) (<= ~a12~0 (div .cse17 5)))))) (.cse4 (<= ~a24~0 1)) (.cse5 (<= ~a21~0 6)) (.cse0 (<= 7 ~a15~0)) (.cse13 (not (= 2 ~a24~0))) (.cse6 (or (< 5 ~a15~0) .cse16)) (.cse1 (< ~a12~0 600007)) (.cse8 (<= ~a15~0 8)) (.cse3 (<= 19 ~a12~0)) (.cse14 (<= 10 ~a21~0)) (.cse15 (<= ~a12~0 11)) (.cse11 (or (< ~a24~0 2) .cse16)) (.cse2 (<= 7 ~a21~0)) (.cse10 (<= ~a15~0 5)) (.cse12 (<= ~a21~0 8))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 (exists ((v_~a12~0_684 Int)) (let ((.cse7 (div (+ (* v_~a12~0_684 10) 2779120) 9))) (and (<= 0 (+ (* 10 v_~a12~0_684) 2779120)) (<= (div (+ (* .cse7 (- 1)) 437300) 10) ~a12~0) (<= v_~a12~0_684 11) (< 0 (+ v_~a12~0_684 43)) (<= .cse7 437300)))) .cse8 .cse9) (not (= 1 |old(~a24~0)|)) (and .cse4 .cse1 (<= 95381 ~a12~0) (<= 8 ~a15~0)) (and .cse4 .cse5 .cse0 .cse1 .cse8) (and (<= (+ ~a12~0 49) 0) .cse10) (and .cse4 .cse5 .cse6 (exists ((v_prenex_2 Int)) (and (<= 0 v_prenex_2) (<= 95381 v_prenex_2) (<= (+ (mod v_prenex_2 34) 13) ~a12~0))) .cse8 (<= ~a12~0 72)) (and .cse6 .cse11 .cse12 .cse8 .cse2 .cse9) (not (<= 7 |old(~a15~0)|)) (not (<= |old(~a15~0)| 8)) (and .cse10 (< ~a12~0 81) .cse13) (and .cse4 .cse5 .cse10) (and .cse1 .cse8 .cse2 .cse14) (and .cse0 .cse15 .cse13 .cse2) (not (= 7 |old(~a21~0)|)) (and .cse6 .cse1 .cse11 .cse8 .cse2 .cse3) (not (<= (+ |old(~a12~0)| 49) 0)) (and .cse10 .cse14) (and .cse15 .cse11 .cse2) (and .cse10 .cse12 (<= (+ ~a12~0 43) 0))))) [2020-07-21 11:35:31,511 INFO L268 CegarLoopResult]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2020-07-21 11:35:31,525 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_684,QUANTIFIED] [2020-07-21 11:35:31,527 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_684,QUANTIFIED] [2020-07-21 11:35:31,527 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_684,QUANTIFIED] [2020-07-21 11:35:31,527 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_684,QUANTIFIED] [2020-07-21 11:35:31,528 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_684,QUANTIFIED] [2020-07-21 11:35:31,528 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] [2020-07-21 11:35:31,528 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] [2020-07-21 11:35:31,529 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] [2020-07-21 11:35:31,529 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] [2020-07-21 11:35:31,530 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-07-21 11:35:31,530 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-07-21 11:35:31,530 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-07-21 11:35:31,531 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] [2020-07-21 11:35:31,531 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] [2020-07-21 11:35:31,531 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] [2020-07-21 11:35:31,531 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] [2020-07-21 11:35:31,541 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_684,QUANTIFIED] [2020-07-21 11:35:31,542 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_684,QUANTIFIED] [2020-07-21 11:35:31,542 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_684,QUANTIFIED] [2020-07-21 11:35:31,542 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_684,QUANTIFIED] [2020-07-21 11:35:31,543 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_684,QUANTIFIED] [2020-07-21 11:35:31,543 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] [2020-07-21 11:35:31,543 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] [2020-07-21 11:35:31,544 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] [2020-07-21 11:35:31,544 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] [2020-07-21 11:35:31,544 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-07-21 11:35:31,545 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-07-21 11:35:31,545 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-07-21 11:35:31,545 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] [2020-07-21 11:35:31,545 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] [2020-07-21 11:35:31,546 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] [2020-07-21 11:35:31,546 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] [2020-07-21 11:35:31,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:35:31 BoogieIcfgContainer [2020-07-21 11:35:31,552 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 11:35:31,554 INFO L168 Benchmark]: Toolchain (without parser) took 191576.41 ms. Allocated memory was 138.9 MB in the beginning and 2.1 GB in the end (delta: 1.9 GB). Free memory was 102.1 MB in the beginning and 266.0 MB in the end (delta: -163.9 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2020-07-21 11:35:31,554 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 11:35:31,555 INFO L168 Benchmark]: CACSL2BoogieTranslator took 935.13 ms. Allocated memory was 138.9 MB in the beginning and 207.1 MB in the end (delta: 68.2 MB). Free memory was 101.7 MB in the beginning and 170.4 MB in the end (delta: -68.6 MB). Peak memory consumption was 41.8 MB. Max. memory is 7.1 GB. [2020-07-21 11:35:31,556 INFO L168 Benchmark]: Boogie Preprocessor took 181.35 ms. Allocated memory is still 207.1 MB. Free memory was 170.4 MB in the beginning and 164.6 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 7.1 GB. [2020-07-21 11:35:31,557 INFO L168 Benchmark]: RCFGBuilder took 1886.49 ms. Allocated memory was 207.1 MB in the beginning and 240.1 MB in the end (delta: 33.0 MB). Free memory was 164.6 MB in the beginning and 158.0 MB in the end (delta: 6.6 MB). Peak memory consumption was 79.1 MB. Max. memory is 7.1 GB. [2020-07-21 11:35:31,557 INFO L168 Benchmark]: TraceAbstraction took 188560.21 ms. Allocated memory was 240.1 MB in the beginning and 2.1 GB in the end (delta: 1.8 GB). Free memory was 158.0 MB in the beginning and 266.0 MB in the end (delta: -108.0 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2020-07-21 11:35:31,560 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 935.13 ms. Allocated memory was 138.9 MB in the beginning and 207.1 MB in the end (delta: 68.2 MB). Free memory was 101.7 MB in the beginning and 170.4 MB in the end (delta: -68.6 MB). Peak memory consumption was 41.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 181.35 ms. Allocated memory is still 207.1 MB. Free memory was 170.4 MB in the beginning and 164.6 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1886.49 ms. Allocated memory was 207.1 MB in the beginning and 240.1 MB in the end (delta: 33.0 MB). Free memory was 164.6 MB in the beginning and 158.0 MB in the end (delta: 6.6 MB). Peak memory consumption was 79.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 188560.21 ms. Allocated memory was 240.1 MB in the beginning and 2.1 GB in the end (delta: 1.8 GB). Free memory was 158.0 MB in the beginning and 266.0 MB in the end (delta: -108.0 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_684,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_684,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_684,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_684,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_684,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_684,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_684,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_684,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_684,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_684,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 127]: 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: 880]: Loop Invariant [2020-07-21 11:35:31,569 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_684,QUANTIFIED] [2020-07-21 11:35:31,569 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_684,QUANTIFIED] [2020-07-21 11:35:31,569 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_684,QUANTIFIED] [2020-07-21 11:35:31,570 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_684,QUANTIFIED] [2020-07-21 11:35:31,570 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_684,QUANTIFIED] [2020-07-21 11:35:31,570 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] [2020-07-21 11:35:31,571 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] [2020-07-21 11:35:31,571 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] [2020-07-21 11:35:31,571 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] [2020-07-21 11:35:31,572 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-07-21 11:35:31,572 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-07-21 11:35:31,572 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-07-21 11:35:31,572 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] [2020-07-21 11:35:31,573 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] [2020-07-21 11:35:31,573 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] [2020-07-21 11:35:31,573 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] [2020-07-21 11:35:31,575 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_684,QUANTIFIED] [2020-07-21 11:35:31,575 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_684,QUANTIFIED] [2020-07-21 11:35:31,576 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_684,QUANTIFIED] [2020-07-21 11:35:31,576 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_684,QUANTIFIED] [2020-07-21 11:35:31,576 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_684,QUANTIFIED] [2020-07-21 11:35:31,577 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] [2020-07-21 11:35:31,577 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] [2020-07-21 11:35:31,577 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] [2020-07-21 11:35:31,577 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] [2020-07-21 11:35:31,578 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-07-21 11:35:31,578 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-07-21 11:35:31,578 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-07-21 11:35:31,579 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] [2020-07-21 11:35:31,579 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] [2020-07-21 11:35:31,579 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] [2020-07-21 11:35:31,579 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_647,QUANTIFIED] Derived loop invariant: (((((((((((((((((((((7 <= a15 && a12 < 600007) && 7 <= a21) && 19 <= a12) || (((((a24 <= 1 && a21 <= 6) && (5 < a15 || a21 < 6)) && (\exists v_~a12~0_684 : int :: (((0 <= 10 * v_~a12~0_684 + 2779120 && ((v_~a12~0_684 * 10 + 2779120) / 9 * -1 + 437300) / 10 <= a12) && v_~a12~0_684 <= 11) && 0 < v_~a12~0_684 + 43) && (v_~a12~0_684 * 10 + 2779120) / 9 <= 437300)) && a15 <= 8) && (\exists v_~a12~0_647 : int :: ((11 < v_~a12~0_647 && 0 <= v_~a12~0_647 + 366333) && v_~a12~0_647 <= 80) && a12 <= (v_~a12~0_647 + 366333) / 5))) || !(1 == \old(a24))) || (((a24 <= 1 && a12 < 600007) && 95381 <= a12) && 8 <= a15)) || ((((a24 <= 1 && a21 <= 6) && 7 <= a15) && a12 < 600007) && a15 <= 8)) || (a12 + 49 <= 0 && a15 <= 5)) || (((((a24 <= 1 && a21 <= 6) && (5 < a15 || a21 < 6)) && (\exists v_prenex_2 : int :: (0 <= v_prenex_2 && 95381 <= v_prenex_2) && v_prenex_2 % 34 + 13 <= a12)) && a15 <= 8) && a12 <= 72)) || ((((((5 < a15 || a21 < 6) && (a24 < 2 || a21 < 6)) && a21 <= 8) && a15 <= 8) && 7 <= a21) && (\exists v_~a12~0_647 : int :: ((11 < v_~a12~0_647 && 0 <= v_~a12~0_647 + 366333) && v_~a12~0_647 <= 80) && a12 <= (v_~a12~0_647 + 366333) / 5))) || !(7 <= \old(a15))) || !(\old(a15) <= 8)) || ((a15 <= 5 && a12 < 81) && !(2 == a24))) || ((a24 <= 1 && a21 <= 6) && a15 <= 5)) || (((a12 < 600007 && a15 <= 8) && 7 <= a21) && 10 <= a21)) || (((7 <= a15 && a12 <= 11) && !(2 == a24)) && 7 <= a21)) || !(7 == \old(a21))) || ((((((5 < a15 || a21 < 6) && a12 < 600007) && (a24 < 2 || a21 < 6)) && a15 <= 8) && 7 <= a21) && 19 <= a12)) || !(\old(a12) + 49 <= 0)) || (a15 <= 5 && 10 <= a21)) || ((a12 <= 11 && (a24 < 2 || a21 < 6)) && 7 <= a21)) || ((a15 <= 5 && a21 <= 8) && a12 + 43 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 117.5s, OverallIterations: 19, TraceHistogramMax: 14, AutomataDifference: 80.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 70.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1008 SDtfs, 11708 SDslu, 879 SDs, 0 SdLazy, 20277 SolverSat, 3642 SolverUnsat, 13 SolverUnknown, 0 SolverNotchecked, 50.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19895 GetRequests, 19706 SyntacticMatches, 13 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 29.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6294occurred in iteration=17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 19 MinimizatonAttempts, 5168 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 359 PreInvPairs, 479 NumberOfFragments, 1417 HoareAnnotationTreeSize, 359 FomulaSimplifications, 114868 FormulaSimplificationTreeSizeReduction, 2.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 85379 FormulaSimplificationTreeSizeReductionInter, 68.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 27.7s InterpolantComputationTime, 11927 NumberOfCodeBlocks, 11927 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 19684 ConstructedInterpolants, 96 QuantifiedInterpolants, 50184756 SizeOfPredicates, 41 NumberOfNonLiveVariables, 17601 ConjunctsInSsa, 144 ConjunctsInUnsatCore, 29 InterpolantComputations, 8 PerfectInterpolantSequences, 56923/58363 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...