/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 SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label44.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 16:36:55,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 16:36:55,086 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 16:36:55,099 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 16:36:55,099 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 16:36:55,100 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 16:36:55,102 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 16:36:55,103 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 16:36:55,105 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 16:36:55,106 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 16:36:55,107 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 16:36:55,108 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 16:36:55,108 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 16:36:55,109 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 16:36:55,110 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 16:36:55,111 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 16:36:55,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 16:36:55,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 16:36:55,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 16:36:55,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 16:36:55,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 16:36:55,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 16:36:55,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 16:36:55,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 16:36:55,124 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 16:36:55,132 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 16:36:55,133 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 16:36:55,133 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 16:36:55,134 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 16:36:55,149 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 16:36:55,149 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 16:36:55,150 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 16:36:55,151 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 16:36:55,151 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 16:36:55,151 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 16:36:55,151 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 16:36:55,151 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 16:36:55,152 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 16:36:55,152 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 16:36:55,152 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 16:36:55,152 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 16:36:55,152 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 16:36:55,152 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 16:36:55,153 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 16:36:55,153 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 16:36:55,153 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 16:36:55,153 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 16:36:55,153 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 16:36:55,154 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 16:36:55,154 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 16:36:55,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 16:36:55,154 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 16:36:55,155 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 16:36:55,155 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 16:36:55,155 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 16:36:55,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:36:55,155 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 16:36:55,155 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 16:36:55,156 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 -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 16:36:55,420 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 16:36:55,433 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 16:36:55,436 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 16:36:55,438 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 16:36:55,438 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 16:36:55,439 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label44.c [2020-07-21 16:36:55,498 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c169d88f/a23da44fdae647ac9e0d368bdeb544bc/FLAG01a8a37f3 [2020-07-21 16:36:56,070 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 16:36:56,071 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label44.c [2020-07-21 16:36:56,085 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c169d88f/a23da44fdae647ac9e0d368bdeb544bc/FLAG01a8a37f3 [2020-07-21 16:36:56,346 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c169d88f/a23da44fdae647ac9e0d368bdeb544bc [2020-07-21 16:36:56,355 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 16:36:56,358 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 16:36:56,359 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 16:36:56,359 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 16:36:56,362 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 16:36:56,363 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:36:56" (1/1) ... [2020-07-21 16:36:56,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2889ae0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:36:56, skipping insertion in model container [2020-07-21 16:36:56,366 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:36:56" (1/1) ... [2020-07-21 16:36:56,374 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 16:36:56,430 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 16:36:56,965 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:36:56,969 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 16:36:57,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:36:57,077 INFO L208 MainTranslator]: Completed translation [2020-07-21 16:36:57,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:36:57 WrapperNode [2020-07-21 16:36:57,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 16:36:57,079 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 16:36:57,079 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 16:36:57,079 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 16:36:57,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:36:57" (1/1) ... [2020-07-21 16:36:57,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:36:57" (1/1) ... [2020-07-21 16:36:57,113 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:36:57" (1/1) ... [2020-07-21 16:36:57,113 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:36:57" (1/1) ... [2020-07-21 16:36:57,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:36:57" (1/1) ... [2020-07-21 16:36:57,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:36:57" (1/1) ... [2020-07-21 16:36:57,174 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:36:57" (1/1) ... [2020-07-21 16:36:57,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 16:36:57,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 16:36:57,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 16:36:57,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 16:36:57,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:36:57" (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 16:36:57,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 16:36:57,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 16:36:57,259 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 16:36:57,259 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 16:36:57,259 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 16:36:57,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 16:36:57,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 16:36:57,260 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 16:36:57,260 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 16:36:57,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 16:36:57,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 16:36:58,550 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 16:36:58,550 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 16:36:58,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:36:58 BoogieIcfgContainer [2020-07-21 16:36:58,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 16:36:58,557 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 16:36:58,557 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 16:36:58,561 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 16:36:58,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:36:56" (1/3) ... [2020-07-21 16:36:58,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56411052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:36:58, skipping insertion in model container [2020-07-21 16:36:58,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:36:57" (2/3) ... [2020-07-21 16:36:58,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56411052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:36:58, skipping insertion in model container [2020-07-21 16:36:58,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:36:58" (3/3) ... [2020-07-21 16:36:58,565 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label44.c [2020-07-21 16:36:58,575 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 16:36:58,583 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 16:36:58,597 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 16:36:58,623 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 16:36:58,623 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 16:36:58,623 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 16:36:58,623 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 16:36:58,624 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 16:36:58,624 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 16:36:58,624 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 16:36:58,624 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 16:36:58,646 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-21 16:36:58,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-21 16:36:58,655 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:36:58,657 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:36:58,657 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:36:58,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:36:58,663 INFO L82 PathProgramCache]: Analyzing trace with hash 745509942, now seen corresponding path program 1 times [2020-07-21 16:36:58,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:36:58,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1495245828] [2020-07-21 16:36:58,673 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 16:36:58,812 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:36:58,813 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:36:58,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 16:36:58,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:36:58,892 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 16:36:58,892 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:36:58,893 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1495245828] [2020-07-21 16:36:58,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:36:58,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:36:58,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875235120] [2020-07-21 16:36:58,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:36:58,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:36:58,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:36:58,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:36:58,921 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-21 16:36:59,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:36:59,847 INFO L93 Difference]: Finished difference Result 571 states and 989 transitions. [2020-07-21 16:36:59,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:36:59,849 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-07-21 16:36:59,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:36:59,865 INFO L225 Difference]: With dead ends: 571 [2020-07-21 16:36:59,865 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 16:36:59,872 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 61 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 16:36:59,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 16:36:59,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-21 16:36:59,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 16:36:59,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 391 transitions. [2020-07-21 16:36:59,939 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 391 transitions. Word has length 63 [2020-07-21 16:36:59,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:36:59,940 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 391 transitions. [2020-07-21 16:36:59,940 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:36:59,940 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 391 transitions. [2020-07-21 16:36:59,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-21 16:36:59,947 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:36:59,947 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 16:37:00,163 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:37:00,163 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:37:00,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:37:00,164 INFO L82 PathProgramCache]: Analyzing trace with hash -825362990, now seen corresponding path program 1 times [2020-07-21 16:37:00,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:37:00,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1151593342] [2020-07-21 16:37:00,166 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 16:37:00,267 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:37:00,267 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:37:00,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:37:00,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:37:00,318 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:37:00,318 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:37:00,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1151593342] [2020-07-21 16:37:00,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:37:00,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:37:00,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742126689] [2020-07-21 16:37:00,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:37:00,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:37:00,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:37:00,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:37:00,322 INFO L87 Difference]: Start difference. First operand 294 states and 391 transitions. Second operand 3 states. [2020-07-21 16:37:00,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:37:00,964 INFO L93 Difference]: Finished difference Result 725 states and 1001 transitions. [2020-07-21 16:37:00,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:37:00,965 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-07-21 16:37:00,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:37:00,970 INFO L225 Difference]: With dead ends: 725 [2020-07-21 16:37:00,970 INFO L226 Difference]: Without dead ends: 437 [2020-07-21 16:37:00,972 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 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 16:37:00,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2020-07-21 16:37:01,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2020-07-21 16:37:01,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-07-21 16:37:01,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 568 transitions. [2020-07-21 16:37:01,005 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 568 transitions. Word has length 133 [2020-07-21 16:37:01,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:37:01,006 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 568 transitions. [2020-07-21 16:37:01,006 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:37:01,007 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 568 transitions. [2020-07-21 16:37:01,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-21 16:37:01,009 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:37:01,010 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:37:01,222 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:37:01,223 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:37:01,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:37:01,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1901765607, now seen corresponding path program 1 times [2020-07-21 16:37:01,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:37:01,225 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2024524052] [2020-07-21 16:37:01,226 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 16:37:01,314 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:37:01,315 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:37:01,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 16:37:01,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:37:01,345 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:37:01,346 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 16:37:06,536 WARN L193 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 25 [2020-07-21 16:37:08,601 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 16:37:10,866 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 3 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:37:10,866 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:37:10,928 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:37:10,930 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 16:37:10,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2024524052] [2020-07-21 16:37:10,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-21 16:37:10,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-07-21 16:37:10,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293784558] [2020-07-21 16:37:10,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 16:37:10,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:37:10,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 16:37:10,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=35, Unknown=2, NotChecked=0, Total=56 [2020-07-21 16:37:10,976 INFO L87 Difference]: Start difference. First operand 437 states and 568 transitions. Second operand 6 states. [2020-07-21 16:39:33,158 WARN L193 SmtUtils]: Spent 6.30 s on a formula simplification. DAG size of input: 36 DAG size of output: 24 [2020-07-21 16:42:21,514 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 23 [2020-07-21 16:42:35,806 WARN L193 SmtUtils]: Spent 5.33 s on a formula simplification that was a NOOP. DAG size: 29 [2020-07-21 16:44:49,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:44:49,288 INFO L93 Difference]: Finished difference Result 1780 states and 2428 transitions. [2020-07-21 16:44:49,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 16:44:49,300 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2020-07-21 16:44:49,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:44:49,318 INFO L225 Difference]: With dead ends: 1780 [2020-07-21 16:44:49,319 INFO L226 Difference]: Without dead ends: 1349 [2020-07-21 16:44:49,321 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 193 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 24.6s TimeCoverageRelationStatistics Valid=58, Invalid=95, Unknown=3, NotChecked=0, Total=156 [2020-07-21 16:44:49,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1349 states. [2020-07-21 16:44:49,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1349 to 1319. [2020-07-21 16:44:49,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1319 states. [2020-07-21 16:44:49,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1696 transitions. [2020-07-21 16:44:49,413 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1696 transitions. Word has length 142 [2020-07-21 16:44:49,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:44:49,415 INFO L479 AbstractCegarLoop]: Abstraction has 1319 states and 1696 transitions. [2020-07-21 16:44:49,415 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 16:44:49,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1696 transitions. [2020-07-21 16:44:49,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-07-21 16:44:49,424 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:44:49,424 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:44:49,625 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:44:49,626 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:44:49,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:44:49,627 INFO L82 PathProgramCache]: Analyzing trace with hash -1171294982, now seen corresponding path program 1 times [2020-07-21 16:44:49,628 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:44:49,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [76254014] [2020-07-21 16:44:49,628 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 16:44:49,747 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:44:49,748 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:44:49,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:44:49,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:44:49,835 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:44:49,835 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:44:49,835 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [76254014] [2020-07-21 16:44:49,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:44:49,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:44:49,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847509413] [2020-07-21 16:44:49,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:44:49,838 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:44:49,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:44:49,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:44:49,838 INFO L87 Difference]: Start difference. First operand 1319 states and 1696 transitions. Second operand 3 states. [2020-07-21 16:44:55,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:44:55,298 INFO L93 Difference]: Finished difference Result 3355 states and 4414 transitions. [2020-07-21 16:44:55,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:44:55,306 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 185 [2020-07-21 16:44:55,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:44:55,324 INFO L225 Difference]: With dead ends: 3355 [2020-07-21 16:44:55,324 INFO L226 Difference]: Without dead ends: 1319 [2020-07-21 16:44:55,331 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 183 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 16:44:55,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2020-07-21 16:44:55,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1319. [2020-07-21 16:44:55,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1319 states. [2020-07-21 16:44:55,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1668 transitions. [2020-07-21 16:44:55,465 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1668 transitions. Word has length 185 [2020-07-21 16:44:55,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:44:55,466 INFO L479 AbstractCegarLoop]: Abstraction has 1319 states and 1668 transitions. [2020-07-21 16:44:55,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:44:55,466 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1668 transitions. [2020-07-21 16:44:55,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-07-21 16:44:55,473 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:44:55,474 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:44:55,690 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:44:55,691 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:44:55,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:44:55,692 INFO L82 PathProgramCache]: Analyzing trace with hash 726002093, now seen corresponding path program 1 times [2020-07-21 16:44:55,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:44:55,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1204034524] [2020-07-21 16:44:55,693 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 16:44:55,854 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:44:55,854 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:44:55,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:44:55,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:44:55,957 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:44:55,957 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:44:55,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1204034524] [2020-07-21 16:44:55,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:44:55,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:44:55,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365759455] [2020-07-21 16:44:55,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:44:55,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:44:55,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:44:55,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:44:55,961 INFO L87 Difference]: Start difference. First operand 1319 states and 1668 transitions. Second operand 3 states. [2020-07-21 16:45:01,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:45:01,140 INFO L93 Difference]: Finished difference Result 2189 states and 2822 transitions. [2020-07-21 16:45:01,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:45:01,148 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 200 [2020-07-21 16:45:01,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:45:01,161 INFO L225 Difference]: With dead ends: 2189 [2020-07-21 16:45:01,162 INFO L226 Difference]: Without dead ends: 2187 [2020-07-21 16:45:01,163 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 198 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 16:45:01,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2020-07-21 16:45:01,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 1756. [2020-07-21 16:45:01,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1756 states. [2020-07-21 16:45:01,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1756 states to 1756 states and 2286 transitions. [2020-07-21 16:45:01,231 INFO L78 Accepts]: Start accepts. Automaton has 1756 states and 2286 transitions. Word has length 200 [2020-07-21 16:45:01,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:45:01,232 INFO L479 AbstractCegarLoop]: Abstraction has 1756 states and 2286 transitions. [2020-07-21 16:45:01,232 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:45:01,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1756 states and 2286 transitions. [2020-07-21 16:45:01,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-07-21 16:45:01,239 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:45:01,240 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:45:01,453 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:45:01,454 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:45:01,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:45:01,454 INFO L82 PathProgramCache]: Analyzing trace with hash -31565570, now seen corresponding path program 1 times [2020-07-21 16:45:01,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:45:01,455 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [550517495] [2020-07-21 16:45:01,455 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 16:45:01,579 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:45:01,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:45:01,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:45:01,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:45:01,729 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 189 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:45:01,730 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:45:02,131 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 189 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:45:02,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [550517495] [2020-07-21 16:45:02,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:45:02,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 16:45:02,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483861753] [2020-07-21 16:45:02,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 16:45:02,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:45:02,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 16:45:02,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 16:45:02,136 INFO L87 Difference]: Start difference. First operand 1756 states and 2286 transitions. Second operand 6 states. [2020-07-21 16:45:11,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:45:11,693 INFO L93 Difference]: Finished difference Result 4228 states and 6058 transitions. [2020-07-21 16:45:11,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 16:45:11,703 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 233 [2020-07-21 16:45:11,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:45:11,723 INFO L225 Difference]: With dead ends: 4228 [2020-07-21 16:45:11,723 INFO L226 Difference]: Without dead ends: 2478 [2020-07-21 16:45:11,729 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 471 GetRequests, 462 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 16:45:11,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2478 states. [2020-07-21 16:45:11,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2478 to 2074. [2020-07-21 16:45:11,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2074 states. [2020-07-21 16:45:11,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2074 states to 2074 states and 2622 transitions. [2020-07-21 16:45:11,827 INFO L78 Accepts]: Start accepts. Automaton has 2074 states and 2622 transitions. Word has length 233 [2020-07-21 16:45:11,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:45:11,828 INFO L479 AbstractCegarLoop]: Abstraction has 2074 states and 2622 transitions. [2020-07-21 16:45:11,828 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 16:45:11,828 INFO L276 IsEmpty]: Start isEmpty. Operand 2074 states and 2622 transitions. [2020-07-21 16:45:11,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2020-07-21 16:45:11,837 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:45:11,838 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 16:45:12,053 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:45:12,054 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:45:12,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:45:12,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1481429953, now seen corresponding path program 1 times [2020-07-21 16:45:12,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:45:12,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1083383915] [2020-07-21 16:45:12,056 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 16:45:12,211 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:45:12,211 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:45:12,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 16:45:12,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:45:12,290 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 3, 1] term [2020-07-21 16:45:12,291 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 16:45:12,296 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:45:12,297 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-07-21 16:45:12,303 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 16:45:12,304 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 16:45:12,319 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 16:45:28,846 WARN L193 SmtUtils]: Spent 16.42 s on a formula simplification. DAG size of input: 57 DAG size of output: 30 [2020-07-21 16:45:28,915 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:45:29,046 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:45:29,268 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 304 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:45:29,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:45:29,651 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 12 [2020-07-21 16:45:30,022 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-07-21 16:45:30,600 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 30 [2020-07-21 16:45:30,769 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-07-21 16:45:31,260 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-07-21 16:45:31,483 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-07-21 16:45:31,490 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 16:45:31,492 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:45:31,495 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:45:31,497 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:45:31,498 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 16:45:31,509 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 16:45:31,521 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 16:45:31,544 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:45:31,551 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 16:45:31,804 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:45:31,806 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 16:45:31,812 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:45:31,817 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 16:45:31,838 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 16:45:31,849 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 16:45:32,564 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 304 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:45:32,565 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1083383915] [2020-07-21 16:45:32,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:45:32,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2020-07-21 16:45:32,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404096796] [2020-07-21 16:45:32,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-21 16:45:32,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:45:32,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-21 16:45:32,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-07-21 16:45:32,568 INFO L87 Difference]: Start difference. First operand 2074 states and 2622 transitions. Second operand 12 states. [2020-07-21 16:45:35,826 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-07-21 16:45:36,571 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-07-21 16:45:37,785 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 14 [2020-07-21 16:45:42,924 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 23 [2020-07-21 16:45:44,762 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28 [2020-07-21 16:45:45,666 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 23 [2020-07-21 16:45:46,544 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 21 [2020-07-21 16:45:53,845 WARN L193 SmtUtils]: Spent 4.48 s on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2020-07-21 16:46:00,148 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification that was a NOOP. DAG size: 36 [2020-07-21 16:46:02,242 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification that was a NOOP. DAG size: 35 [2020-07-21 16:46:04,996 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 26 [2020-07-21 16:46:10,257 WARN L193 SmtUtils]: Spent 1.96 s on a formula simplification that was a NOOP. DAG size: 33 [2020-07-21 16:46:12,599 WARN L193 SmtUtils]: Spent 2.16 s on a formula simplification that was a NOOP. DAG size: 36 [2020-07-21 16:46:12,955 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 23 [2020-07-21 16:46:19,291 WARN L193 SmtUtils]: Spent 3.77 s on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 16:46:25,297 WARN L193 SmtUtils]: Spent 4.10 s on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2020-07-21 16:46:30,156 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 23 [2020-07-21 16:46:31,062 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 23 [2020-07-21 16:46:36,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:46:36,835 INFO L93 Difference]: Finished difference Result 5941 states and 8259 transitions. [2020-07-21 16:46:36,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-07-21 16:46:36,844 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 298 [2020-07-21 16:46:36,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:46:36,846 INFO L225 Difference]: With dead ends: 5941 [2020-07-21 16:46:36,846 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 16:46:36,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 604 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 741 ImplicationChecksByTransitivity, 50.4s TimeCoverageRelationStatistics Valid=685, Invalid=1963, Unknown=4, NotChecked=0, Total=2652 [2020-07-21 16:46:36,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 16:46:36,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 16:46:36,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 16:46:36,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 16:46:36,883 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 298 [2020-07-21 16:46:36,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:46:36,883 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 16:46:36,884 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-21 16:46:36,884 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 16:46:36,884 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 16:46:37,098 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:46:37,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 16:46:37,969 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 57 [2020-07-21 16:46:38,094 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 57 [2020-07-21 16:46:38,206 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 10 [2020-07-21 16:46:38,492 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 20 [2020-07-21 16:46:41,263 WARN L193 SmtUtils]: Spent 2.75 s on a formula simplification. DAG size of input: 148 DAG size of output: 41 [2020-07-21 16:46:41,902 WARN L193 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 26 [2020-07-21 16:46:42,504 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 26 [2020-07-21 16:46:42,512 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:46:42,513 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= |old(~a19~0)| ~a19~0) (<= ~a10~0 |old(~a10~0)|) (<= |old(~a1~0)| ~a1~0)) [2020-07-21 16:46:42,513 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:46:42,513 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-21 16:46:42,513 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,514 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,514 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,514 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,514 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,514 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,514 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-21 16:46:42,515 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-21 16:46:42,515 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 16:46:42,515 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 16:46:42,515 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 16:46:42,515 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 16:46:42,515 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 16:46:42,515 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 16:46:42,515 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-21 16:46:42,515 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-21 16:46:42,516 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-21 16:46:42,516 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,516 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,516 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,516 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,516 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,516 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-21 16:46:42,516 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-21 16:46:42,517 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-21 16:46:42,517 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-21 16:46:42,517 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 16:46:42,517 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 16:46:42,517 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 16:46:42,517 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 16:46:42,517 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 16:46:42,517 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-21 16:46:42,517 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-21 16:46:42,517 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-21 16:46:42,517 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-21 16:46:42,518 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2020-07-21 16:46:42,518 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-21 16:46:42,518 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,518 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,518 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,518 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,518 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,518 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-21 16:46:42,518 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 16:46:42,518 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 16:46:42,519 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 16:46:42,519 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 16:46:42,519 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 16:46:42,519 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-21 16:46:42,519 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-21 16:46:42,519 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-21 16:46:42,519 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-21 16:46:42,519 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,519 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,520 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,520 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,520 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,520 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-21 16:46:42,520 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-21 16:46:42,520 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-21 16:46:42,520 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 16:46:42,520 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 16:46:42,521 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 16:46:42,521 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 16:46:42,521 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 16:46:42,521 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-21 16:46:42,521 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-21 16:46:42,521 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-21 16:46:42,521 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-21 16:46:42,521 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-21 16:46:42,522 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,522 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,522 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,522 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,522 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,522 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 16:46:42,522 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 16:46:42,522 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 16:46:42,523 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 16:46:42,523 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 16:46:42,523 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-21 16:46:42,523 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-21 16:46:42,523 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-21 16:46:42,523 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-21 16:46:42,523 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,523 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,523 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,523 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,523 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,523 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,524 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,524 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-21 16:46:42,524 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-21 16:46:42,524 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-21 16:46:42,524 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-21 16:46:42,524 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 16:46:42,524 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 16:46:42,524 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 16:46:42,524 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 16:46:42,524 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 16:46:42,524 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-21 16:46:42,524 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-21 16:46:42,524 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-21 16:46:42,525 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-21 16:46:42,525 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,525 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,525 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,525 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,525 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 16:46:42,525 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,526 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,526 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-21 16:46:42,526 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-21 16:46:42,526 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-21 16:46:42,526 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 16:46:42,526 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 16:46:42,526 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 16:46:42,526 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 16:46:42,526 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 16:46:42,527 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 16:46:42,527 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-21 16:46:42,527 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-21 16:46:42,527 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-21 16:46:42,527 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-21 16:46:42,527 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,527 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,527 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,527 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,527 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,528 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,528 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-21 16:46:42,528 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-21 16:46:42,528 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-21 16:46:42,528 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 16:46:42,528 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 16:46:42,528 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 16:46:42,528 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 16:46:42,528 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 16:46:42,528 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 16:46:42,529 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-21 16:46:42,529 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-21 16:46:42,529 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse3 (<= |old(~a19~0)| ~a19~0)) (.cse4 (<= ~a10~0 |old(~a10~0)|)) (.cse5 (<= |old(~a1~0)| ~a1~0))) (let ((.cse1 (not (<= |old(~a10~0)| 0))) (.cse2 (and .cse3 .cse4 .cse5)) (.cse0 (not (<= |old(~a19~0)| 7)))) (and (or .cse0 (<= ~a10~0 0) .cse1) (or (not (< 218 |old(~a1~0)|)) .cse2) (or (and .cse3 .cse4 .cse5 (<= 2 ~a10~0)) (not (<= 2 |old(~a10~0)|))) (or (not (<= 23 |old(~a1~0)|)) .cse1 .cse2) (or (not (<= 9 |old(~a19~0)|)) .cse2) (or .cse0 (and .cse5 (<= ~a19~0 7)))))) [2020-07-21 16:46:42,529 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-21 16:46:42,529 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-21 16:46:42,529 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-21 16:46:42,529 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,529 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,529 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,530 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,530 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,530 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,530 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-21 16:46:42,530 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 16:46:42,530 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 16:46:42,530 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 16:46:42,530 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 16:46:42,530 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 16:46:42,530 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 16:46:42,530 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-21 16:46:42,530 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-21 16:46:42,530 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-21 16:46:42,530 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-21 16:46:42,530 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-21 16:46:42,531 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-21 16:46:42,531 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,531 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,531 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,531 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,531 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,531 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,531 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-21 16:46:42,531 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-21 16:46:42,531 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-21 16:46:42,531 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 16:46:42,531 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 16:46:42,531 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 16:46:42,531 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 16:46:42,532 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 16:46:42,532 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 16:46:42,532 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-21 16:46:42,532 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-21 16:46:42,532 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-21 16:46:42,532 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,532 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,532 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,532 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,532 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,532 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:46:42,532 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-21 16:46:42,532 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-21 16:46:42,532 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-21 16:46:42,533 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 16:46:42,533 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 16:46:42,533 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 16:46:42,533 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 16:46:42,533 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 16:46:42,533 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 16:46:42,533 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-21 16:46:42,533 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-21 16:46:42,534 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-21 16:46:42,534 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:46:42,534 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= 9 ~a19~0) (<= 23 ~a1~0)) [2020-07-21 16:46:42,534 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 16:46:42,534 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:46:42,535 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and (<= |old(~a19~0)| ~a19~0) (<= ~a10~0 |old(~a10~0)|) (<= |old(~a1~0)| ~a1~0))) [2020-07-21 16:46:42,535 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-21 16:46:42,535 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (or (<= 9 ~a19~0) (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (<= 2 ~a10~0) (and (<= ~a10~0 0) (<= 23 ~a1~0)) (< 218 ~a1~0) (<= ~a19~0 7)) [2020-07-21 16:46:42,535 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 16:46:42,535 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-21 16:46:42,535 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (or (<= 9 ~a19~0) (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (<= 2 ~a10~0) (and (<= ~a10~0 0) (<= 23 ~a1~0)) (< 218 ~a1~0) (<= ~a19~0 7)) [2020-07-21 16:46:42,535 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-21 16:46:42,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 04:46:42 BoogieIcfgContainer [2020-07-21 16:46:42,566 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 16:46:42,568 INFO L168 Benchmark]: Toolchain (without parser) took 586211.39 ms. Allocated memory was 145.2 MB in the beginning and 294.1 MB in the end (delta: 148.9 MB). Free memory was 101.5 MB in the beginning and 77.4 MB in the end (delta: 24.2 MB). Peak memory consumption was 173.1 MB. Max. memory is 7.1 GB. [2020-07-21 16:46:42,569 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 145.2 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 16:46:42,570 INFO L168 Benchmark]: CACSL2BoogieTranslator took 719.34 ms. Allocated memory was 145.2 MB in the beginning and 205.0 MB in the end (delta: 59.8 MB). Free memory was 101.1 MB in the beginning and 171.0 MB in the end (delta: -69.8 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. [2020-07-21 16:46:42,571 INFO L168 Benchmark]: Boogie Preprocessor took 111.05 ms. Allocated memory is still 205.0 MB. Free memory was 171.0 MB in the beginning and 166.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 16:46:42,572 INFO L168 Benchmark]: RCFGBuilder took 1366.22 ms. Allocated memory was 205.0 MB in the beginning and 238.0 MB in the end (delta: 33.0 MB). Free memory was 166.0 MB in the beginning and 181.7 MB in the end (delta: -15.8 MB). Peak memory consumption was 82.6 MB. Max. memory is 7.1 GB. [2020-07-21 16:46:42,573 INFO L168 Benchmark]: TraceAbstraction took 584008.35 ms. Allocated memory was 238.0 MB in the beginning and 294.1 MB in the end (delta: 56.1 MB). Free memory was 181.7 MB in the beginning and 77.4 MB in the end (delta: 104.4 MB). Peak memory consumption was 160.5 MB. Max. memory is 7.1 GB. [2020-07-21 16:46:42,577 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 145.2 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 719.34 ms. Allocated memory was 145.2 MB in the beginning and 205.0 MB in the end (delta: 59.8 MB). Free memory was 101.1 MB in the beginning and 171.0 MB in the end (delta: -69.8 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.05 ms. Allocated memory is still 205.0 MB. Free memory was 171.0 MB in the beginning and 166.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1366.22 ms. Allocated memory was 205.0 MB in the beginning and 238.0 MB in the end (delta: 33.0 MB). Free memory was 166.0 MB in the beginning and 181.7 MB in the end (delta: -15.8 MB). Peak memory consumption was 82.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 584008.35 ms. Allocated memory was 238.0 MB in the beginning and 294.1 MB in the end (delta: 56.1 MB). Free memory was 181.7 MB in the beginning and 77.4 MB in the end (delta: 104.4 MB). Peak memory consumption was 160.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 175]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: ((((((9 <= a19 || !(23 <= \old(a1))) || !(\old(a10) <= 0)) || !(9 <= \old(a19))) || 2 <= a10) || (a10 <= 0 && 23 <= a1)) || 218 < a1) || a19 <= 7 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 578.4s, OverallIterations: 7, TraceHistogramMax: 4, AutomataDifference: 544.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 701 SDtfs, 2245 SDslu, 375 SDs, 0 SdLazy, 6724 SolverSat, 1384 SolverUnsat, 188 SolverUnknown, 0 SolverNotchecked, 442.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1910 GetRequests, 1832 SyntacticMatches, 6 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 753 ImplicationChecksByTransitivity, 75.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2074occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 865 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 119 PreInvPairs, 263 NumberOfFragments, 200 HoareAnnotationTreeSize, 119 FomulaSimplifications, 18709 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1897 FormulaSimplificationTreeSizeReductionInter, 4.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 30.8s InterpolantComputationTime, 1254 NumberOfCodeBlocks, 1254 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1776 ConstructedInterpolants, 65 QuantifiedInterpolants, 1513010 SizeOfPredicates, 13 NumberOfNonLiveVariables, 2291 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 1157/1380 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...