/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_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 14:09:03,109 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 14:09:03,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 14:09:03,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 14:09:03,131 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 14:09:03,133 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 14:09:03,135 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 14:09:03,143 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 14:09:03,145 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 14:09:03,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 14:09:03,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 14:09:03,151 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 14:09:03,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 14:09:03,158 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 14:09:03,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 14:09:03,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 14:09:03,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 14:09:03,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 14:09:03,167 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 14:09:03,172 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 14:09:03,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 14:09:03,176 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 14:09:03,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 14:09:03,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 14:09:03,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 14:09:03,187 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 14:09:03,187 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 14:09:03,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 14:09:03,191 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 14:09:03,193 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 14:09:03,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 14:09:03,195 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 14:09:03,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 14:09:03,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 14:09:03,202 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 14:09:03,202 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 14:09:03,203 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 14:09:03,203 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 14:09:03,203 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 14:09:03,204 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 14:09:03,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 14:09:03,207 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 14:09:03,233 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 14:09:03,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 14:09:03,236 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 14:09:03,236 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 14:09:03,236 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 14:09:03,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 14:09:03,237 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 14:09:03,237 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 14:09:03,237 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 14:09:03,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 14:09:03,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 14:09:03,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 14:09:03,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 14:09:03,240 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 14:09:03,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 14:09:03,240 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 14:09:03,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 14:09:03,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 14:09:03,241 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 14:09:03,241 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 14:09:03,241 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 14:09:03,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 14:09:03,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 14:09:03,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 14:09:03,242 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 14:09:03,242 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 14:09:03,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:03,243 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 14:09:03,243 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 14:09:03,243 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_FUNCTIONS 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 -> 4 [2020-07-20 14:09:03,540 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 14:09:03,562 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 14:09:03,566 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 14:09:03,568 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 14:09:03,568 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 14:09:03,569 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label11.c [2020-07-20 14:09:03,656 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec6e0cb0f/526aebc32cb441b2963609e0c514a69a/FLAG448fed00e [2020-07-20 14:09:04,224 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 14:09:04,225 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label11.c [2020-07-20 14:09:04,237 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec6e0cb0f/526aebc32cb441b2963609e0c514a69a/FLAG448fed00e [2020-07-20 14:09:04,508 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec6e0cb0f/526aebc32cb441b2963609e0c514a69a [2020-07-20 14:09:04,518 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 14:09:04,521 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 14:09:04,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 14:09:04,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 14:09:04,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 14:09:04,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:09:04" (1/1) ... [2020-07-20 14:09:04,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65b5475b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:09:04, skipping insertion in model container [2020-07-20 14:09:04,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:09:04" (1/1) ... [2020-07-20 14:09:04,538 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 14:09:04,592 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 14:09:04,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:09:04,995 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 14:09:05,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:09:05,245 INFO L208 MainTranslator]: Completed translation [2020-07-20 14:09:05,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:09:05 WrapperNode [2020-07-20 14:09:05,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 14:09:05,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 14:09:05,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 14:09:05,247 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 14:09:05,265 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:09:05" (1/1) ... [2020-07-20 14:09:05,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:09:05" (1/1) ... [2020-07-20 14:09:05,284 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:09:05" (1/1) ... [2020-07-20 14:09:05,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:09:05" (1/1) ... [2020-07-20 14:09:05,323 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:09:05" (1/1) ... [2020-07-20 14:09:05,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:09:05" (1/1) ... [2020-07-20 14:09:05,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:09:05" (1/1) ... [2020-07-20 14:09:05,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 14:09:05,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 14:09:05,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 14:09:05,385 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 14:09:05,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:09:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 14:09:05,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 14:09:05,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 14:09:05,475 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 14:09:05,475 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 14:09:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 14:09:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 14:09:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 14:09:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 14:09:05,478 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 14:09:05,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 14:09:05,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 14:09:06,849 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 14:09:06,850 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 14:09:06,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:09:06 BoogieIcfgContainer [2020-07-20 14:09:06,862 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 14:09:06,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 14:09:06,864 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 14:09:06,867 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 14:09:06,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:09:04" (1/3) ... [2020-07-20 14:09:06,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ad0e005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:09:06, skipping insertion in model container [2020-07-20 14:09:06,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:09:05" (2/3) ... [2020-07-20 14:09:06,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ad0e005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:09:06, skipping insertion in model container [2020-07-20 14:09:06,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:09:06" (3/3) ... [2020-07-20 14:09:06,875 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label11.c [2020-07-20 14:09:06,888 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 14:09:06,902 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 14:09:06,917 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 14:09:06,947 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 14:09:06,947 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 14:09:06,947 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 14:09:06,947 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 14:09:06,948 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 14:09:06,948 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 14:09:06,948 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 14:09:06,948 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 14:09:06,971 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-20 14:09:06,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-20 14:09:06,981 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:06,983 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, 1, 1, 1, 1] [2020-07-20 14:09:06,983 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:06,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:06,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1918215546, now seen corresponding path program 1 times [2020-07-20 14:09:06,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:07,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1998768512] [2020-07-20 14:09:07,000 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 14:09:07,151 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:07,152 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:07,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:09:07,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:07,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:09:07,230 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:09:07,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1998768512] [2020-07-20 14:09:07,232 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:09:07,233 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:09:07,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619008937] [2020-07-20 14:09:07,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:09:07,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:07,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:09:07,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:07,256 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-20 14:09:08,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:08,362 INFO L93 Difference]: Finished difference Result 586 states and 1004 transitions. [2020-07-20 14:09:08,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:09:08,364 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-07-20 14:09:08,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:08,381 INFO L225 Difference]: With dead ends: 586 [2020-07-20 14:09:08,381 INFO L226 Difference]: Without dead ends: 294 [2020-07-20 14:09:08,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:08,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-20 14:09:08,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-20 14:09:08,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-20 14:09:08,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 446 transitions. [2020-07-20 14:09:08,466 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 446 transitions. Word has length 67 [2020-07-20 14:09:08,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:08,467 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 446 transitions. [2020-07-20 14:09:08,468 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:09:08,468 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 446 transitions. [2020-07-20 14:09:08,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-20 14:09:08,474 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:08,474 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:09:08,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:08,688 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:08,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:08,689 INFO L82 PathProgramCache]: Analyzing trace with hash -649832990, now seen corresponding path program 1 times [2020-07-20 14:09:08,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:08,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [906116357] [2020-07-20 14:09:08,690 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 14:09:08,805 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:08,805 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:08,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:09:08,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:08,880 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:09:08,880 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:09:08,881 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [906116357] [2020-07-20 14:09:08,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:09:08,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:09:08,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359030768] [2020-07-20 14:09:08,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:09:08,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:08,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:09:08,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:08,885 INFO L87 Difference]: Start difference. First operand 294 states and 446 transitions. Second operand 3 states. [2020-07-20 14:09:09,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:09,660 INFO L93 Difference]: Finished difference Result 868 states and 1337 transitions. [2020-07-20 14:09:09,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:09:09,661 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2020-07-20 14:09:09,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:09,667 INFO L225 Difference]: With dead ends: 868 [2020-07-20 14:09:09,668 INFO L226 Difference]: Without dead ends: 580 [2020-07-20 14:09:09,670 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:09,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-07-20 14:09:09,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 437. [2020-07-20 14:09:09,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-07-20 14:09:09,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 648 transitions. [2020-07-20 14:09:09,719 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 648 transitions. Word has length 137 [2020-07-20 14:09:09,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:09,720 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 648 transitions. [2020-07-20 14:09:09,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:09:09,720 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 648 transitions. [2020-07-20 14:09:09,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-07-20 14:09:09,729 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:09,730 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:09:09,943 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:09,944 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:09,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:09,945 INFO L82 PathProgramCache]: Analyzing trace with hash 387828613, now seen corresponding path program 1 times [2020-07-20 14:09:09,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:09,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [812956490] [2020-07-20 14:09:09,946 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 14:09:10,071 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:10,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:10,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:09:10,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:10,126 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:09:10,126 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:09:10,127 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [812956490] [2020-07-20 14:09:10,127 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:09:10,127 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:09:10,127 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395998866] [2020-07-20 14:09:10,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:09:10,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:10,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:09:10,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:10,129 INFO L87 Difference]: Start difference. First operand 437 states and 648 transitions. Second operand 3 states. [2020-07-20 14:09:10,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:10,841 INFO L93 Difference]: Finished difference Result 868 states and 1308 transitions. [2020-07-20 14:09:10,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:09:10,847 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2020-07-20 14:09:10,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:10,853 INFO L225 Difference]: With dead ends: 868 [2020-07-20 14:09:10,853 INFO L226 Difference]: Without dead ends: 866 [2020-07-20 14:09:10,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:10,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2020-07-20 14:09:10,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 437. [2020-07-20 14:09:10,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-07-20 14:09:10,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 648 transitions. [2020-07-20 14:09:10,885 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 648 transitions. Word has length 144 [2020-07-20 14:09:10,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:10,886 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 648 transitions. [2020-07-20 14:09:10,886 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:09:10,886 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 648 transitions. [2020-07-20 14:09:10,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-07-20 14:09:10,889 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:10,889 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:09:11,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:11,104 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:11,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:11,105 INFO L82 PathProgramCache]: Analyzing trace with hash -319573275, now seen corresponding path program 1 times [2020-07-20 14:09:11,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:11,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [120640593] [2020-07-20 14:09:11,107 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 14:09:11,212 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:11,212 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:11,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:09:11,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:11,314 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:09:11,315 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:09:11,315 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [120640593] [2020-07-20 14:09:11,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:09:11,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:09:11,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412023441] [2020-07-20 14:09:11,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:09:11,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:11,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:09:11,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:09:11,321 INFO L87 Difference]: Start difference. First operand 437 states and 648 transitions. Second operand 5 states. [2020-07-20 14:09:12,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:12,432 INFO L93 Difference]: Finished difference Result 1325 states and 2011 transitions. [2020-07-20 14:09:12,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 14:09:12,433 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 192 [2020-07-20 14:09:12,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:12,445 INFO L225 Difference]: With dead ends: 1325 [2020-07-20 14:09:12,445 INFO L226 Difference]: Without dead ends: 894 [2020-07-20 14:09:12,447 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 14:09:12,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-07-20 14:09:12,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 882. [2020-07-20 14:09:12,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 882 states. [2020-07-20 14:09:12,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1274 transitions. [2020-07-20 14:09:12,485 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1274 transitions. Word has length 192 [2020-07-20 14:09:12,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:12,486 INFO L479 AbstractCegarLoop]: Abstraction has 882 states and 1274 transitions. [2020-07-20 14:09:12,486 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:09:12,486 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1274 transitions. [2020-07-20 14:09:12,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-07-20 14:09:12,492 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:12,492 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, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:09:12,699 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:12,700 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:12,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:12,701 INFO L82 PathProgramCache]: Analyzing trace with hash 562765338, now seen corresponding path program 1 times [2020-07-20 14:09:12,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:12,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2019504576] [2020-07-20 14:09:12,703 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 14:09:12,872 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:12,873 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:12,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 14:09:12,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:12,980 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-07-20 14:09:12,981 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:09:12,981 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2019504576] [2020-07-20 14:09:12,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:09:12,982 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:09:12,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481102117] [2020-07-20 14:09:12,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:09:12,983 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:12,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:09:12,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:09:12,983 INFO L87 Difference]: Start difference. First operand 882 states and 1274 transitions. Second operand 5 states. [2020-07-20 14:09:13,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:13,960 INFO L93 Difference]: Finished difference Result 1923 states and 2780 transitions. [2020-07-20 14:09:13,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:09:13,960 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 263 [2020-07-20 14:09:13,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:13,967 INFO L225 Difference]: With dead ends: 1923 [2020-07-20 14:09:13,968 INFO L226 Difference]: Without dead ends: 1047 [2020-07-20 14:09:13,970 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:09:13,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2020-07-20 14:09:14,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1037. [2020-07-20 14:09:14,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1037 states. [2020-07-20 14:09:14,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1473 transitions. [2020-07-20 14:09:14,009 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1473 transitions. Word has length 263 [2020-07-20 14:09:14,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:14,010 INFO L479 AbstractCegarLoop]: Abstraction has 1037 states and 1473 transitions. [2020-07-20 14:09:14,010 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:09:14,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1473 transitions. [2020-07-20 14:09:14,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-07-20 14:09:14,016 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:14,016 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, 3, 3, 3, 3, 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] [2020-07-20 14:09:14,228 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:14,229 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:14,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:14,230 INFO L82 PathProgramCache]: Analyzing trace with hash 200837085, now seen corresponding path program 1 times [2020-07-20 14:09:14,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:14,231 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1272310458] [2020-07-20 14:09:14,232 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 14:09:14,399 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:14,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:14,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:09:14,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:14,515 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-07-20 14:09:14,516 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:09:14,516 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1272310458] [2020-07-20 14:09:14,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:09:14,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:09:14,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735111271] [2020-07-20 14:09:14,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:09:14,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:14,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:09:14,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:09:14,519 INFO L87 Difference]: Start difference. First operand 1037 states and 1473 transitions. Second operand 5 states. [2020-07-20 14:09:15,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:15,470 INFO L93 Difference]: Finished difference Result 2382 states and 3444 transitions. [2020-07-20 14:09:15,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 14:09:15,471 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 268 [2020-07-20 14:09:15,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:15,478 INFO L225 Difference]: With dead ends: 2382 [2020-07-20 14:09:15,479 INFO L226 Difference]: Without dead ends: 1351 [2020-07-20 14:09:15,481 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:09:15,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2020-07-20 14:09:15,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1341. [2020-07-20 14:09:15,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1341 states. [2020-07-20 14:09:15,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1341 states to 1341 states and 1848 transitions. [2020-07-20 14:09:15,525 INFO L78 Accepts]: Start accepts. Automaton has 1341 states and 1848 transitions. Word has length 268 [2020-07-20 14:09:15,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:15,526 INFO L479 AbstractCegarLoop]: Abstraction has 1341 states and 1848 transitions. [2020-07-20 14:09:15,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:09:15,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1341 states and 1848 transitions. [2020-07-20 14:09:15,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-07-20 14:09:15,532 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:15,533 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, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:09:15,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:15,747 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:15,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:15,747 INFO L82 PathProgramCache]: Analyzing trace with hash 854527778, now seen corresponding path program 1 times [2020-07-20 14:09:15,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:15,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [316123348] [2020-07-20 14:09:15,748 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 14:09:15,873 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:15,874 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:15,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:09:15,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:15,942 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 197 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:09:15,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:09:16,124 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 197 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:09:16,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [316123348] [2020-07-20 14:09:16,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:09:16,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 14:09:16,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809941621] [2020-07-20 14:09:16,126 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 14:09:16,126 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:16,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 14:09:16,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:09:16,127 INFO L87 Difference]: Start difference. First operand 1341 states and 1848 transitions. Second operand 7 states. [2020-07-20 14:09:17,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:17,671 INFO L93 Difference]: Finished difference Result 3757 states and 5467 transitions. [2020-07-20 14:09:17,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-20 14:09:17,672 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 271 [2020-07-20 14:09:17,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:17,686 INFO L225 Difference]: With dead ends: 3757 [2020-07-20 14:09:17,686 INFO L226 Difference]: Without dead ends: 1810 [2020-07-20 14:09:17,695 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 537 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-20 14:09:17,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1810 states. [2020-07-20 14:09:17,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1810 to 1492. [2020-07-20 14:09:17,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1492 states. [2020-07-20 14:09:17,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 1803 transitions. [2020-07-20 14:09:17,765 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 1803 transitions. Word has length 271 [2020-07-20 14:09:17,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:17,765 INFO L479 AbstractCegarLoop]: Abstraction has 1492 states and 1803 transitions. [2020-07-20 14:09:17,765 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 14:09:17,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 1803 transitions. [2020-07-20 14:09:17,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2020-07-20 14:09:17,774 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:17,775 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, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:09:17,988 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:17,989 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:17,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:17,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1966354874, now seen corresponding path program 1 times [2020-07-20 14:09:17,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:17,990 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [822158559] [2020-07-20 14:09:17,991 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:18,174 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:18,175 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:18,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:09:18,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:18,261 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-07-20 14:09:18,261 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:09:18,262 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [822158559] [2020-07-20 14:09:18,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:09:18,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:09:18,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135245111] [2020-07-20 14:09:18,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:09:18,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:18,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:09:18,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:18,264 INFO L87 Difference]: Start difference. First operand 1492 states and 1803 transitions. Second operand 3 states. [2020-07-20 14:09:18,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:18,844 INFO L93 Difference]: Finished difference Result 3268 states and 4007 transitions. [2020-07-20 14:09:18,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:09:18,849 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 323 [2020-07-20 14:09:18,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:18,858 INFO L225 Difference]: With dead ends: 3268 [2020-07-20 14:09:18,858 INFO L226 Difference]: Without dead ends: 1778 [2020-07-20 14:09:18,864 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:18,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1778 states. [2020-07-20 14:09:18,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1778 to 1778. [2020-07-20 14:09:18,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1778 states. [2020-07-20 14:09:18,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1778 states to 1778 states and 2126 transitions. [2020-07-20 14:09:18,912 INFO L78 Accepts]: Start accepts. Automaton has 1778 states and 2126 transitions. Word has length 323 [2020-07-20 14:09:18,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:18,913 INFO L479 AbstractCegarLoop]: Abstraction has 1778 states and 2126 transitions. [2020-07-20 14:09:18,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:09:18,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states and 2126 transitions. [2020-07-20 14:09:18,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-07-20 14:09:18,922 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:18,922 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, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:09:19,137 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:19,138 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:19,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:19,139 INFO L82 PathProgramCache]: Analyzing trace with hash 745892726, now seen corresponding path program 1 times [2020-07-20 14:09:19,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:19,140 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [963276827] [2020-07-20 14:09:19,140 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:19,362 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:19,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:19,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:09:19,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:19,397 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-20 14:09:19,398 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 14:09:19,465 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 334 proven. 2 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-07-20 14:09:19,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:09:19,560 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:09:19,561 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:09:19,564 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-20 14:09:19,565 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:09:19,779 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 252 proven. 77 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-07-20 14:09:19,780 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [963276827] [2020-07-20 14:09:19,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:09:19,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 14:09:19,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95894524] [2020-07-20 14:09:19,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 14:09:19,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:19,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 14:09:19,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:09:19,782 INFO L87 Difference]: Start difference. First operand 1778 states and 2126 transitions. Second operand 6 states. [2020-07-20 14:09:20,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:20,801 INFO L93 Difference]: Finished difference Result 3727 states and 4568 transitions. [2020-07-20 14:09:20,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 14:09:20,807 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 333 [2020-07-20 14:09:20,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:20,818 INFO L225 Difference]: With dead ends: 3727 [2020-07-20 14:09:20,818 INFO L226 Difference]: Without dead ends: 2098 [2020-07-20 14:09:20,823 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 671 GetRequests, 662 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 14:09:20,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2098 states. [2020-07-20 14:09:20,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2098 to 1927. [2020-07-20 14:09:20,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1927 states. [2020-07-20 14:09:20,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1927 states to 1927 states and 2238 transitions. [2020-07-20 14:09:20,887 INFO L78 Accepts]: Start accepts. Automaton has 1927 states and 2238 transitions. Word has length 333 [2020-07-20 14:09:20,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:20,888 INFO L479 AbstractCegarLoop]: Abstraction has 1927 states and 2238 transitions. [2020-07-20 14:09:20,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 14:09:20,888 INFO L276 IsEmpty]: Start isEmpty. Operand 1927 states and 2238 transitions. [2020-07-20 14:09:20,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2020-07-20 14:09:20,897 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:20,898 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, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:09:21,107 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:21,108 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:21,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:21,109 INFO L82 PathProgramCache]: Analyzing trace with hash 348873925, now seen corresponding path program 1 times [2020-07-20 14:09:21,109 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:21,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [16793415] [2020-07-20 14:09:21,110 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:21,274 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:21,274 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:21,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-20 14:09:21,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:21,301 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 14:09:21,303 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 14:09:21,304 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 14:09:21,306 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 14:09:21,309 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 14:09:21,310 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 14:09:21,311 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 14:09:21,313 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 14:09:21,315 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 14:09:21,317 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 14:09:21,319 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 14:09:21,320 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 14:09:21,321 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 14:09:21,323 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 14:09:21,324 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 14:09:21,325 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 14:09:21,327 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 14:09:21,329 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 14:09:21,334 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 14:09:21,335 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 14:09:21,337 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 14:09:21,338 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 14:09:21,339 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 14:09:21,340 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 14:09:21,343 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 14:09:21,344 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 14:09:40,403 WARN L193 SmtUtils]: Spent 18.94 s on a formula simplification. DAG size of input: 64 DAG size of output: 35 [2020-07-20 14:09:40,439 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-20 14:09:40,563 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-20 14:09:40,564 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 14:09:40,565 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 14:09:40,599 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 14:09:40,854 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 386 proven. 2 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-07-20 14:09:40,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:09:40,981 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:09:40,981 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:09:40,984 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:09:40,984 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:09:41,016 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:09:41,022 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:09:41,148 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:09:41,151 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:09:41,151 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:09:41,152 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:09:41,153 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:09:41,154 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-20 14:09:41,155 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 14:09:41,156 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 14:09:41,157 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 14:09:41,158 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:09:41,159 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 14:09:41,161 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:09:41,161 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 14:09:41,162 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-20 14:09:41,163 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-20 14:09:41,164 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-20 14:09:41,165 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-20 14:09:41,169 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 14:09:41,171 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-20 14:09:41,172 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:09:41,173 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 14:09:41,174 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-20 14:09:41,177 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 14:09:41,178 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-20 14:09:41,179 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-20 14:09:41,180 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-20 14:09:41,183 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-20 14:09:41,366 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [16793415] [2020-07-20 14:09:41,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-20 14:09:41,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-07-20 14:09:41,367 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655262374] [2020-07-20 14:09:41,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 14:09:41,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:41,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 14:09:41,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-07-20 14:09:41,368 INFO L87 Difference]: Start difference. First operand 1927 states and 2238 transitions. Second operand 8 states. [2020-07-20 14:12:32,855 WARN L193 SmtUtils]: Spent 22.41 s on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2020-07-20 14:12:56,851 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 37 [2020-07-20 14:13:03,858 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 35 [2020-07-20 14:13:46,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:13:46,145 INFO L93 Difference]: Finished difference Result 4891 states and 5865 transitions. [2020-07-20 14:13:46,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-20 14:13:46,151 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 378 [2020-07-20 14:13:46,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:13:46,166 INFO L225 Difference]: With dead ends: 4891 [2020-07-20 14:13:46,166 INFO L226 Difference]: Without dead ends: 3113 [2020-07-20 14:13:46,171 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 647 GetRequests, 625 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 43.7s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2020-07-20 14:13:46,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3113 states. [2020-07-20 14:13:46,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3113 to 3101. [2020-07-20 14:13:46,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3101 states. [2020-07-20 14:13:46,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3101 states to 3101 states and 3622 transitions. [2020-07-20 14:13:46,248 INFO L78 Accepts]: Start accepts. Automaton has 3101 states and 3622 transitions. Word has length 378 [2020-07-20 14:13:46,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:13:46,248 INFO L479 AbstractCegarLoop]: Abstraction has 3101 states and 3622 transitions. [2020-07-20 14:13:46,249 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 14:13:46,249 INFO L276 IsEmpty]: Start isEmpty. Operand 3101 states and 3622 transitions. [2020-07-20 14:13:46,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2020-07-20 14:13:46,258 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:13:46,258 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, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:13:46,467 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:13:46,468 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:13:46,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:13:46,469 INFO L82 PathProgramCache]: Analyzing trace with hash -301430794, now seen corresponding path program 1 times [2020-07-20 14:13:46,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:13:46,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [199682010] [2020-07-20 14:13:46,470 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:13:46,700 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:13:46,700 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:13:46,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-20 14:13:46,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:13:46,797 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 14:13:46,797 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 14:13:46,798 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 14:13:46,798 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 14:13:46,799 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 14:13:46,800 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 14:13:46,801 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 14:13:46,802 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 14:14:28,044 WARN L193 SmtUtils]: Spent 35.13 s on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2020-07-20 14:14:30,099 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_7 Int)) (let ((.cse0 (mod v_prenex_7 25))) (and (< .cse0 42617) (<= |c_old(~a1~0)| v_prenex_7) (not (= 0 .cse0)) (not (= 0 (mod (+ .cse0 3) 5))) (< v_prenex_7 0) (= c_~a1~0 (+ (div (+ .cse0 (- 42617)) 5) 8518))))) (exists ((v_~a1~0_403 Int)) (let ((.cse1 (mod v_~a1~0_403 25))) (and (not (= 0 (mod (+ .cse1 3) 5))) (<= 0 v_~a1~0_403) (= (+ (div (+ .cse1 (- 42592)) 5) 8518) c_~a1~0) (< .cse1 42592) (<= |c_old(~a1~0)| v_~a1~0_403)))) (exists ((v_prenex_6 Int)) (let ((.cse2 (mod v_prenex_6 25))) (and (<= |c_old(~a1~0)| v_prenex_6) (= (+ (div (+ .cse2 (- 42592)) 5) 8517) c_~a1~0) (<= 0 v_prenex_6) (= 0 (mod (+ .cse2 3) 5))))) (exists ((v_prenex_5 Int)) (let ((.cse3 (mod v_prenex_5 25))) (and (<= |c_old(~a1~0)| v_prenex_5) (not (= 0 .cse3)) (< v_prenex_5 0) (= 0 (mod (+ .cse3 3) 5)) (= c_~a1~0 (+ (div (+ .cse3 (- 42617)) 5) 8517)))))) is different from true [2020-07-20 14:14:30,102 INFO L501 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-07-20 14:14:32,437 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 29 [2020-07-20 14:14:32,648 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 14:14:32,839 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 369 proven. 11 refuted. 0 times theorem prover too weak. 71 trivial. 2 not checked. [2020-07-20 14:14:32,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:14:33,150 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 19 [2020-07-20 14:14:33,217 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-20 14:14:33,217 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:14:33,644 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-07-20 14:14:33,645 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:14:33,645 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-07-20 14:14:33,645 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:14:33,646 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-07-20 14:14:33,646 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:14:33,647 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 14:14:33,647 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:14:33,648 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:14:33,648 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-20 14:14:33,649 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 14:14:33,649 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 14:14:33,650 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 14:14:33,651 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 14:14:33,652 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 14:14:33,652 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 14:14:33,653 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 14:14:33,654 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-20 14:14:33,655 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-20 14:14:33,655 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-20 14:14:33,656 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-20 14:14:33,656 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-20 14:14:33,657 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-20 14:14:34,173 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 377 proven. 2 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-07-20 14:14:34,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [199682010] [2020-07-20 14:14:34,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:14:34,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5] total 13 [2020-07-20 14:14:34,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505753959] [2020-07-20 14:14:34,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-20 14:14:34,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:14:34,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-20 14:14:34,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=99, Unknown=5, NotChecked=20, Total=156 [2020-07-20 14:14:34,176 INFO L87 Difference]: Start difference. First operand 3101 states and 3622 transitions. Second operand 13 states. [2020-07-20 14:18:05,517 WARN L193 SmtUtils]: Spent 16.58 s on a formula simplification. DAG size of input: 62 DAG size of output: 37 [2020-07-20 14:18:30,935 WARN L193 SmtUtils]: Spent 18.38 s on a formula simplification. DAG size of input: 56 DAG size of output: 30 [2020-07-20 14:18:36,185 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 32 [2020-07-20 14:19:16,854 WARN L193 SmtUtils]: Spent 8.27 s on a formula simplification that was a NOOP. DAG size: 53 [2020-07-20 14:21:00,868 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 10 [2020-07-20 14:21:19,513 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 14 [2020-07-20 14:21:29,765 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 13 [2020-07-20 14:21:30,599 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 13 [2020-07-20 14:22:59,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:22:59,425 INFO L93 Difference]: Finished difference Result 7424 states and 8841 transitions. [2020-07-20 14:22:59,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-07-20 14:22:59,447 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 397 [2020-07-20 14:22:59,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:22:59,448 INFO L225 Difference]: With dead ends: 7424 [2020-07-20 14:22:59,448 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 14:22:59,464 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 831 GetRequests, 796 SyntacticMatches, 5 SemanticMatches, 30 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 106.0s TimeCoverageRelationStatistics Valid=184, Invalid=743, Unknown=7, NotChecked=58, Total=992 [2020-07-20 14:22:59,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 14:22:59,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 14:22:59,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 14:22:59,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 14:22:59,465 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 397 [2020-07-20 14:22:59,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:22:59,465 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 14:22:59,465 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-20 14:22:59,466 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 14:22:59,466 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 14:22:59,669 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:22:59,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 14:23:00,828 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 167 [2020-07-20 14:23:00,962 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 167 [2020-07-20 14:23:01,188 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 12 [2020-07-20 14:23:01,748 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 25 [2020-07-20 14:23:08,120 WARN L193 SmtUtils]: Spent 6.36 s on a formula simplification. DAG size of input: 225 DAG size of output: 46 [2020-07-20 14:23:08,313 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 11 [2020-07-20 14:23:11,696 WARN L193 SmtUtils]: Spent 3.38 s on a formula simplification. DAG size of input: 168 DAG size of output: 33 [2020-07-20 14:23:15,397 WARN L193 SmtUtils]: Spent 3.70 s on a formula simplification. DAG size of input: 168 DAG size of output: 33 [2020-07-20 14:23:15,405 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:23:15,406 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|)) [2020-07-20 14:23:15,406 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:23:15,406 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-20 14:23:15,406 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,406 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,406 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,406 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,407 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,407 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,407 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-20 14:23:15,407 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-20 14:23:15,407 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-20 14:23:15,407 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-20 14:23:15,407 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-20 14:23:15,407 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-20 14:23:15,407 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-20 14:23:15,408 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-20 14:23:15,408 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-20 14:23:15,408 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-20 14:23:15,408 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-20 14:23:15,408 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,408 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,408 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,408 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,409 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,409 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-20 14:23:15,409 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-20 14:23:15,409 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-20 14:23:15,409 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-20 14:23:15,409 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-20 14:23:15,409 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-20 14:23:15,409 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-20 14:23:15,410 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-20 14:23:15,410 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-20 14:23:15,410 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-20 14:23:15,410 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-20 14:23:15,410 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-20 14:23:15,410 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-20 14:23:15,410 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 187) no Hoare annotation was computed. [2020-07-20 14:23:15,410 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-20 14:23:15,410 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,410 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,410 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,410 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,410 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,411 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-20 14:23:15,411 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-20 14:23:15,411 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-20 14:23:15,411 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-20 14:23:15,411 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-20 14:23:15,411 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-20 14:23:15,411 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-20 14:23:15,411 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-20 14:23:15,411 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-20 14:23:15,412 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-20 14:23:15,412 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,412 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,412 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,412 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,412 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,412 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-20 14:23:15,412 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-20 14:23:15,413 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-20 14:23:15,413 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-20 14:23:15,416 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-20 14:23:15,417 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-20 14:23:15,417 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-20 14:23:15,417 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-20 14:23:15,417 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-20 14:23:15,417 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-20 14:23:15,417 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-20 14:23:15,417 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-20 14:23:15,417 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-20 14:23:15,417 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,418 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,418 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,418 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,418 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,418 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-20 14:23:15,418 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-20 14:23:15,418 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-20 14:23:15,418 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-20 14:23:15,419 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-20 14:23:15,419 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-20 14:23:15,419 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-20 14:23:15,419 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-20 14:23:15,419 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-20 14:23:15,419 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,419 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,419 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,420 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,420 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,420 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,420 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,420 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-20 14:23:15,420 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-20 14:23:15,420 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-20 14:23:15,420 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-20 14:23:15,421 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-20 14:23:15,421 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-20 14:23:15,421 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-20 14:23:15,421 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-20 14:23:15,421 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-20 14:23:15,421 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-20 14:23:15,421 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-20 14:23:15,421 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-20 14:23:15,421 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-20 14:23:15,421 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,422 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,422 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,422 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,422 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-20 14:23:15,422 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,422 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,422 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-20 14:23:15,422 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-20 14:23:15,423 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-20 14:23:15,423 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-20 14:23:15,423 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-20 14:23:15,423 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-20 14:23:15,423 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-20 14:23:15,423 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-20 14:23:15,423 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-20 14:23:15,424 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-20 14:23:15,424 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-20 14:23:15,424 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-20 14:23:15,424 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-20 14:23:15,424 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,424 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,424 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,424 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,424 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,424 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,424 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-20 14:23:15,425 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-20 14:23:15,425 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-20 14:23:15,425 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-20 14:23:15,425 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-20 14:23:15,425 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-20 14:23:15,425 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-20 14:23:15,425 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-20 14:23:15,425 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-20 14:23:15,425 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-20 14:23:15,425 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-20 14:23:15,426 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse0 (<= ~a10~0 |old(~a10~0)|)) (.cse1 (<= |old(~a10~0)| ~a10~0)) (.cse5 (<= ~a19~0 |old(~a19~0)|)) (.cse2 (= ~a1~0 |old(~a1~0)|))) (let ((.cse4 (not (<= |old(~a19~0)| 8))) (.cse3 (and .cse0 .cse1 .cse5 .cse2))) (and (or (and .cse0 (or (<= 9 ~a19~0) (<= 23 ~a1~0)) .cse1 .cse2 (< ~a19~0 10)) (not (< |old(~a19~0)| 10)) (not (<= 9 |old(~a19~0)|)) (not (<= 2 |old(~a10~0)|))) (or .cse3 .cse4 (not (< 0 (+ |old(~a1~0)| 13)))) (or (not (<= 4 |old(~a10~0)|)) (and .cse0 .cse5 (<= 4 ~a10~0) .cse2) .cse4) (or .cse3 (not (<= |old(~a10~0)| 2)))))) [2020-07-20 14:23:15,426 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-20 14:23:15,426 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-20 14:23:15,426 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-20 14:23:15,426 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,426 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,426 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,426 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,427 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,427 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,427 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-20 14:23:15,427 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-20 14:23:15,427 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-20 14:23:15,427 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-20 14:23:15,427 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-20 14:23:15,427 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-20 14:23:15,427 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-20 14:23:15,427 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-20 14:23:15,428 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-20 14:23:15,428 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-20 14:23:15,428 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-20 14:23:15,428 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-20 14:23:15,428 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-20 14:23:15,428 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,428 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,428 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,428 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,429 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,429 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,429 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-20 14:23:15,429 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-20 14:23:15,429 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-20 14:23:15,429 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-20 14:23:15,429 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-20 14:23:15,429 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-20 14:23:15,429 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-20 14:23:15,429 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-20 14:23:15,430 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-20 14:23:15,430 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-20 14:23:15,430 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-20 14:23:15,430 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-20 14:23:15,430 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,430 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,430 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,430 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,430 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,431 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:23:15,431 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-20 14:23:15,431 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-20 14:23:15,431 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-20 14:23:15,431 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-20 14:23:15,431 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-20 14:23:15,431 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-20 14:23:15,431 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-20 14:23:15,431 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-20 14:23:15,431 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-20 14:23:15,431 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-20 14:23:15,432 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-20 14:23:15,432 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-20 14:23:15,432 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:23:15,432 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= 9 ~a19~0) (= 23 ~a1~0) (< ~a19~0 10)) [2020-07-20 14:23:15,432 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 14:23:15,432 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:23:15,432 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (< |old(~a19~0)| 10)) (not (= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and (<= 9 ~a19~0) (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (= ~a1~0 |old(~a1~0)|) (< ~a19~0 10))) [2020-07-20 14:23:15,432 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-20 14:23:15,432 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 8))) (or (and .cse0 (< 0 (+ ~a1~0 13))) (not (< |old(~a19~0)| 10)) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|)) (<= ~a10~0 2) (and (<= 9 ~a19~0) (< ~a19~0 10)) (and .cse0 (<= 4 ~a10~0)))) [2020-07-20 14:23:15,433 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-20 14:23:15,433 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-20 14:23:15,433 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 8))) (or (and .cse0 (< 0 (+ ~a1~0 13))) (not (< |old(~a19~0)| 10)) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|)) (<= ~a10~0 2) (and (<= 9 ~a19~0) (< ~a19~0 10)) (and .cse0 (<= 4 ~a10~0)))) [2020-07-20 14:23:15,433 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-20 14:23:15,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 02:23:15 BoogieIcfgContainer [2020-07-20 14:23:15,451 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 14:23:15,453 INFO L168 Benchmark]: Toolchain (without parser) took 850933.03 ms. Allocated memory was 136.8 MB in the beginning and 561.0 MB in the end (delta: 424.1 MB). Free memory was 98.3 MB in the beginning and 469.9 MB in the end (delta: -371.7 MB). Peak memory consumption was 470.3 MB. Max. memory is 7.1 GB. [2020-07-20 14:23:15,454 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 136.8 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-20 14:23:15,455 INFO L168 Benchmark]: CACSL2BoogieTranslator took 724.12 ms. Allocated memory was 136.8 MB in the beginning and 204.5 MB in the end (delta: 67.6 MB). Free memory was 98.0 MB in the beginning and 169.7 MB in the end (delta: -71.7 MB). Peak memory consumption was 35.4 MB. Max. memory is 7.1 GB. [2020-07-20 14:23:15,455 INFO L168 Benchmark]: Boogie Preprocessor took 134.15 ms. Allocated memory is still 204.5 MB. Free memory was 169.7 MB in the beginning and 164.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-20 14:23:15,457 INFO L168 Benchmark]: RCFGBuilder took 1477.93 ms. Allocated memory was 204.5 MB in the beginning and 234.4 MB in the end (delta: 29.9 MB). Free memory was 164.7 MB in the beginning and 181.4 MB in the end (delta: -16.7 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. [2020-07-20 14:23:15,458 INFO L168 Benchmark]: TraceAbstraction took 848587.19 ms. Allocated memory was 234.4 MB in the beginning and 561.0 MB in the end (delta: 326.6 MB). Free memory was 179.9 MB in the beginning and 469.9 MB in the end (delta: -290.0 MB). Peak memory consumption was 454.4 MB. Max. memory is 7.1 GB. [2020-07-20 14:23:15,461 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 ms. Allocated memory is still 136.8 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 724.12 ms. Allocated memory was 136.8 MB in the beginning and 204.5 MB in the end (delta: 67.6 MB). Free memory was 98.0 MB in the beginning and 169.7 MB in the end (delta: -71.7 MB). Peak memory consumption was 35.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 134.15 ms. Allocated memory is still 204.5 MB. Free memory was 169.7 MB in the beginning and 164.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1477.93 ms. Allocated memory was 204.5 MB in the beginning and 234.4 MB in the end (delta: 29.9 MB). Free memory was 164.7 MB in the beginning and 181.4 MB in the end (delta: -16.7 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 848587.19 ms. Allocated memory was 234.4 MB in the beginning and 561.0 MB in the end (delta: 326.6 MB). Free memory was 179.9 MB in the beginning and 469.9 MB in the end (delta: -290.0 MB). Peak memory consumption was 454.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 187]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: (((((((a19 <= 8 && 0 < a1 + 13) || !(\old(a19) < 10)) || !(\old(a10) <= 0)) || !(23 == \old(a1))) || !(9 <= \old(a19))) || a10 <= 2) || (9 <= a19 && a19 < 10)) || (a19 <= 8 && 4 <= a10) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 832.7s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 759.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 15.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 486 SDtfs, 3618 SDslu, 498 SDs, 0 SdLazy, 10340 SolverSat, 1441 SolverUnsat, 285 SolverUnknown, 0 SolverNotchecked, 641.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4090 GetRequests, 3994 SyntacticMatches, 10 SemanticMatches, 86 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 150.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3101occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 1105 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 136 PreInvPairs, 238 NumberOfFragments, 244 HoareAnnotationTreeSize, 136 FomulaSimplifications, 16137 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 7444 FormulaSimplificationTreeSizeReductionInter, 14.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 68.8s InterpolantComputationTime, 2773 NumberOfCodeBlocks, 2773 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 3760 ConstructedInterpolants, 12 QuantifiedInterpolants, 3574008 SizeOfPredicates, 17 NumberOfNonLiveVariables, 4604 ConjunctsInSsa, 76 ConjunctsInUnsatCore, 14 InterpolantComputations, 7 PerfectInterpolantSequences, 3255/3355 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...