/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 22:00:05,980 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:00:05,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:00:06,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 22:00:06,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 22:00:06,004 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 22:00:06,006 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 22:00:06,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 22:00:06,021 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 22:00:06,024 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 22:00:06,026 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 22:00:06,028 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 22:00:06,028 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 22:00:06,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 22:00:06,033 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 22:00:06,035 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 22:00:06,036 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 22:00:06,037 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 22:00:06,039 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 22:00:06,043 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 22:00:06,048 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 22:00:06,051 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 22:00:06,053 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 22:00:06,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 22:00:06,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 22:00:06,057 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 22:00:06,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 22:00:06,059 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 22:00:06,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 22:00:06,062 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 22:00:06,062 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 22:00:06,063 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 22:00:06,064 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 22:00:06,065 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 22:00:06,066 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 22:00:06,066 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 22:00:06,067 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 22:00:06,067 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 22:00:06,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 22:00:06,068 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 22:00:06,069 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 22:00:06,070 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 [2019-11-06 22:00:06,102 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:00:06,105 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:00:06,106 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:00:06,107 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:00:06,110 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:00:06,110 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:00:06,110 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:00:06,111 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:00:06,111 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:00:06,111 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:00:06,111 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:00:06,111 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:00:06,112 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:00:06,113 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:00:06,113 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:00:06,113 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:00:06,114 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:00:06,114 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:00:06,114 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:00:06,114 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:00:06,114 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:00:06,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:00:06,115 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:00:06,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:00:06,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:00:06,116 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:00:06,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:00:06,116 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:00:06,117 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 22:00:06,445 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:00:06,457 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:00:06,461 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:00:06,462 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:00:06,464 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:00:06,465 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product41.cil.c [2019-11-06 22:00:06,541 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7f882928/d10fb384d3554768a1910bfdcaf7995f/FLAGa8edf692c [2019-11-06 22:00:07,093 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:00:07,094 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product41.cil.c [2019-11-06 22:00:07,108 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7f882928/d10fb384d3554768a1910bfdcaf7995f/FLAGa8edf692c [2019-11-06 22:00:07,364 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7f882928/d10fb384d3554768a1910bfdcaf7995f [2019-11-06 22:00:07,374 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:00:07,376 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:00:07,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:00:07,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:00:07,384 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:00:07,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:00:07" (1/1) ... [2019-11-06 22:00:07,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3743a8d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:07, skipping insertion in model container [2019-11-06 22:00:07,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:00:07" (1/1) ... [2019-11-06 22:00:07,396 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:00:07,450 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:00:07,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:00:07,886 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:00:07,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:00:08,040 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:00:08,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:08 WrapperNode [2019-11-06 22:00:08,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:00:08,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:00:08,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:00:08,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:00:08,052 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:08" (1/1) ... [2019-11-06 22:00:08,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:08" (1/1) ... [2019-11-06 22:00:08,073 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:08" (1/1) ... [2019-11-06 22:00:08,073 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:08" (1/1) ... [2019-11-06 22:00:08,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:08" (1/1) ... [2019-11-06 22:00:08,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:08" (1/1) ... [2019-11-06 22:00:08,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:08" (1/1) ... [2019-11-06 22:00:08,133 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:00:08,133 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:00:08,134 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:00:08,134 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:00:08,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:08" (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 [2019-11-06 22:00:08,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:00:08,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:00:08,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-06 22:00:08,210 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-06 22:00:08,211 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-06 22:00:08,211 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-06 22:00:08,211 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-06 22:00:08,211 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-06 22:00:08,211 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-11-06 22:00:08,212 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-11-06 22:00:08,213 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-11-06 22:00:08,213 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-11-06 22:00:08,215 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-11-06 22:00:08,215 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-11-06 22:00:08,216 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-11-06 22:00:08,216 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-11-06 22:00:08,219 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-11-06 22:00:08,219 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-06 22:00:08,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-11-06 22:00:08,220 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-11-06 22:00:08,220 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-11-06 22:00:08,220 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-11-06 22:00:08,220 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-11-06 22:00:08,221 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-11-06 22:00:08,221 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-11-06 22:00:08,221 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-11-06 22:00:08,221 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-06 22:00:08,222 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-06 22:00:08,222 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-06 22:00:08,222 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-06 22:00:08,222 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:00:08,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-06 22:00:08,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-06 22:00:08,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-06 22:00:08,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-06 22:00:08,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-06 22:00:08,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-06 22:00:08,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-06 22:00:08,223 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:00:08,223 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 22:00:08,224 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-06 22:00:08,224 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-06 22:00:08,224 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-06 22:00:08,225 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-06 22:00:08,225 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-06 22:00:08,225 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-11-06 22:00:08,225 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-11-06 22:00:08,225 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-11-06 22:00:08,225 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-11-06 22:00:08,225 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-06 22:00:08,226 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-11-06 22:00:08,226 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-11-06 22:00:08,226 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-11-06 22:00:08,226 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-11-06 22:00:08,226 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-11-06 22:00:08,226 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-11-06 22:00:08,226 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-11-06 22:00:08,227 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-11-06 22:00:08,227 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-11-06 22:00:08,227 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-11-06 22:00:08,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 22:00:08,227 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-11-06 22:00:08,228 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-11-06 22:00:08,228 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-06 22:00:08,228 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-06 22:00:08,228 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-06 22:00:08,228 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-11-06 22:00:08,228 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-06 22:00:08,229 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-06 22:00:08,229 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-06 22:00:08,229 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:00:08,230 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-06 22:00:08,230 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 22:00:08,230 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 22:00:08,231 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-06 22:00:08,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 22:00:08,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 22:00:08,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 22:00:08,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 22:00:08,232 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-06 22:00:08,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 22:00:08,232 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-06 22:00:08,233 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-06 22:00:08,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 22:00:08,233 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-06 22:00:08,233 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-06 22:00:08,234 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-06 22:00:08,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:00:08,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-06 22:00:08,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:00:09,393 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:00:09,394 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-06 22:00:09,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:00:09 BoogieIcfgContainer [2019-11-06 22:00:09,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:00:09,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:00:09,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:00:09,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:00:09,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:00:07" (1/3) ... [2019-11-06 22:00:09,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46f6831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:00:09, skipping insertion in model container [2019-11-06 22:00:09,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:08" (2/3) ... [2019-11-06 22:00:09,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46f6831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:00:09, skipping insertion in model container [2019-11-06 22:00:09,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:00:09" (3/3) ... [2019-11-06 22:00:09,405 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product41.cil.c [2019-11-06 22:00:09,413 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:00:09,421 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 22:00:09,433 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 22:00:09,463 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:00:09,464 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:00:09,464 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:00:09,465 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:00:09,465 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:00:09,465 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:00:09,465 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:00:09,465 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:00:09,493 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2019-11-06 22:00:09,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-11-06 22:00:09,504 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:00:09,505 INFO L410 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] [2019-11-06 22:00:09,507 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:00:09,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:00:09,513 INFO L82 PathProgramCache]: Analyzing trace with hash 177325019, now seen corresponding path program 1 times [2019-11-06 22:00:09,521 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:00:09,521 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867413784] [2019-11-06 22:00:09,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:00:09,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:10,291 WARN L191 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-11-06 22:00:10,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:10,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:10,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:10,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:10,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:10,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:10,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:10,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:00:10,403 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867413784] [2019-11-06 22:00:10,404 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:00:10,404 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 22:00:10,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097079175] [2019-11-06 22:00:10,413 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 22:00:10,416 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:00:10,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 22:00:10,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:00:10,435 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 3 states. [2019-11-06 22:00:11,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:00:11,563 INFO L93 Difference]: Finished difference Result 287 states and 375 transitions. [2019-11-06 22:00:11,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 22:00:11,565 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-11-06 22:00:11,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:00:11,592 INFO L225 Difference]: With dead ends: 287 [2019-11-06 22:00:11,592 INFO L226 Difference]: Without dead ends: 155 [2019-11-06 22:00:11,600 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:00:11,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2019-11-06 22:00:11,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 123. [2019-11-06 22:00:11,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-11-06 22:00:11,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 144 transitions. [2019-11-06 22:00:11,694 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 144 transitions. Word has length 52 [2019-11-06 22:00:11,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:00:11,694 INFO L462 AbstractCegarLoop]: Abstraction has 123 states and 144 transitions. [2019-11-06 22:00:11,695 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 22:00:11,695 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 144 transitions. [2019-11-06 22:00:11,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-11-06 22:00:11,698 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:00:11,699 INFO L410 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] [2019-11-06 22:00:11,699 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:00:11,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:00:11,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1842882407, now seen corresponding path program 1 times [2019-11-06 22:00:11,700 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:00:11,700 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506274948] [2019-11-06 22:00:11,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:00:11,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:12,010 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-11-06 22:00:12,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:12,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:12,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:12,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:12,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:12,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:12,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:12,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:12,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:00:12,095 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506274948] [2019-11-06 22:00:12,096 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:00:12,096 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-06 22:00:12,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439772272] [2019-11-06 22:00:12,113 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 22:00:12,113 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:00:12,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 22:00:12,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-06 22:00:12,114 INFO L87 Difference]: Start difference. First operand 123 states and 144 transitions. Second operand 4 states. [2019-11-06 22:00:12,589 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:00:13,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:00:13,340 INFO L93 Difference]: Finished difference Result 220 states and 266 transitions. [2019-11-06 22:00:13,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-06 22:00:13,341 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2019-11-06 22:00:13,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:00:13,345 INFO L225 Difference]: With dead ends: 220 [2019-11-06 22:00:13,345 INFO L226 Difference]: Without dead ends: 139 [2019-11-06 22:00:13,347 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-06 22:00:13,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2019-11-06 22:00:13,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 114. [2019-11-06 22:00:13,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-11-06 22:00:13,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 132 transitions. [2019-11-06 22:00:13,400 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 132 transitions. Word has length 53 [2019-11-06 22:00:13,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:00:13,400 INFO L462 AbstractCegarLoop]: Abstraction has 114 states and 132 transitions. [2019-11-06 22:00:13,400 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 22:00:13,401 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 132 transitions. [2019-11-06 22:00:13,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-11-06 22:00:13,409 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:00:13,410 INFO L410 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] [2019-11-06 22:00:13,410 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:00:13,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:00:13,410 INFO L82 PathProgramCache]: Analyzing trace with hash 774651483, now seen corresponding path program 1 times [2019-11-06 22:00:13,411 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:00:13,411 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616319828] [2019-11-06 22:00:13,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:00:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:13,789 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-11-06 22:00:13,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:13,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:13,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:13,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:13,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:13,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:13,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:13,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:13,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:00:13,891 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616319828] [2019-11-06 22:00:13,891 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:00:13,892 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-06 22:00:13,892 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38792471] [2019-11-06 22:00:13,892 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-06 22:00:13,893 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:00:13,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-06 22:00:13,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-06 22:00:13,893 INFO L87 Difference]: Start difference. First operand 114 states and 132 transitions. Second operand 8 states. [2019-11-06 22:00:14,430 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-11-06 22:00:14,763 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:00:15,028 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:15,311 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:16,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:00:16,506 INFO L93 Difference]: Finished difference Result 229 states and 280 transitions. [2019-11-06 22:00:16,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-06 22:00:16,507 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2019-11-06 22:00:16,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:00:16,510 INFO L225 Difference]: With dead ends: 229 [2019-11-06 22:00:16,510 INFO L226 Difference]: Without dead ends: 139 [2019-11-06 22:00:16,511 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-06 22:00:16,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2019-11-06 22:00:16,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 114. [2019-11-06 22:00:16,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-11-06 22:00:16,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 131 transitions. [2019-11-06 22:00:16,542 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 131 transitions. Word has length 57 [2019-11-06 22:00:16,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:00:16,542 INFO L462 AbstractCegarLoop]: Abstraction has 114 states and 131 transitions. [2019-11-06 22:00:16,542 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-06 22:00:16,542 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 131 transitions. [2019-11-06 22:00:16,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-06 22:00:16,544 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:00:16,544 INFO L410 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] [2019-11-06 22:00:16,545 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:00:16,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:00:16,545 INFO L82 PathProgramCache]: Analyzing trace with hash -771193848, now seen corresponding path program 1 times [2019-11-06 22:00:16,545 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:00:16,545 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630613030] [2019-11-06 22:00:16,546 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:00:16,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:16,810 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-11-06 22:00:16,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:16,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:16,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:16,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:16,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:16,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:16,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:16,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:16,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:16,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:00:16,883 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630613030] [2019-11-06 22:00:16,883 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:00:16,883 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-06 22:00:16,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333743682] [2019-11-06 22:00:16,884 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-06 22:00:16,884 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:00:16,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-06 22:00:16,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-06 22:00:16,885 INFO L87 Difference]: Start difference. First operand 114 states and 131 transitions. Second operand 6 states. [2019-11-06 22:00:17,273 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-11-06 22:00:18,509 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:00:19,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:00:19,138 INFO L93 Difference]: Finished difference Result 324 states and 398 transitions. [2019-11-06 22:00:19,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-06 22:00:19,139 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2019-11-06 22:00:19,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:00:19,141 INFO L225 Difference]: With dead ends: 324 [2019-11-06 22:00:19,141 INFO L226 Difference]: Without dead ends: 234 [2019-11-06 22:00:19,145 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-11-06 22:00:19,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2019-11-06 22:00:19,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 193. [2019-11-06 22:00:19,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2019-11-06 22:00:19,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 222 transitions. [2019-11-06 22:00:19,195 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 222 transitions. Word has length 65 [2019-11-06 22:00:19,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:00:19,196 INFO L462 AbstractCegarLoop]: Abstraction has 193 states and 222 transitions. [2019-11-06 22:00:19,196 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-06 22:00:19,196 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 222 transitions. [2019-11-06 22:00:19,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-11-06 22:00:19,200 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:00:19,200 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:00:19,200 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:00:19,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:00:19,200 INFO L82 PathProgramCache]: Analyzing trace with hash -913158347, now seen corresponding path program 1 times [2019-11-06 22:00:19,201 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:00:19,201 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985087728] [2019-11-06 22:00:19,202 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:00:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:19,539 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-11-06 22:00:19,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:19,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:19,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:19,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:19,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:19,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:19,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:19,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:19,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:19,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:19,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:19,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:00:19,628 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985087728] [2019-11-06 22:00:19,629 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:00:19,629 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-06 22:00:19,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095729876] [2019-11-06 22:00:19,631 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-06 22:00:19,631 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:00:19,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-06 22:00:19,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-06 22:00:19,632 INFO L87 Difference]: Start difference. First operand 193 states and 222 transitions. Second operand 8 states. [2019-11-06 22:00:20,160 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-11-06 22:00:21,651 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:21,958 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:22,257 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:22,489 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-11-06 22:00:23,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:00:23,092 INFO L93 Difference]: Finished difference Result 528 states and 662 transitions. [2019-11-06 22:00:23,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-06 22:00:23,093 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2019-11-06 22:00:23,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:00:23,099 INFO L225 Difference]: With dead ends: 528 [2019-11-06 22:00:23,099 INFO L226 Difference]: Without dead ends: 359 [2019-11-06 22:00:23,100 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2019-11-06 22:00:23,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2019-11-06 22:00:23,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 319. [2019-11-06 22:00:23,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2019-11-06 22:00:23,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 373 transitions. [2019-11-06 22:00:23,169 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 373 transitions. Word has length 79 [2019-11-06 22:00:23,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:00:23,170 INFO L462 AbstractCegarLoop]: Abstraction has 319 states and 373 transitions. [2019-11-06 22:00:23,170 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-06 22:00:23,170 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 373 transitions. [2019-11-06 22:00:23,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-11-06 22:00:23,172 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:00:23,172 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:00:23,172 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:00:23,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:00:23,173 INFO L82 PathProgramCache]: Analyzing trace with hash 421166267, now seen corresponding path program 1 times [2019-11-06 22:00:23,173 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:00:23,173 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245813435] [2019-11-06 22:00:23,173 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:00:23,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:23,505 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-11-06 22:00:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:23,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:23,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:23,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:23,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:23,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:23,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:23,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:23,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:23,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:00:23,614 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245813435] [2019-11-06 22:00:23,616 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:00:23,616 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-06 22:00:23,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482385059] [2019-11-06 22:00:23,616 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-06 22:00:23,617 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:00:23,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-06 22:00:23,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-11-06 22:00:23,620 INFO L87 Difference]: Start difference. First operand 319 states and 373 transitions. Second operand 10 states. [2019-11-06 22:00:24,214 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-11-06 22:00:25,826 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:26,114 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:00:26,386 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:00:26,631 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-11-06 22:00:26,991 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:27,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:00:27,908 INFO L93 Difference]: Finished difference Result 707 states and 894 transitions. [2019-11-06 22:00:27,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-06 22:00:27,909 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 83 [2019-11-06 22:00:27,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:00:27,913 INFO L225 Difference]: With dead ends: 707 [2019-11-06 22:00:27,913 INFO L226 Difference]: Without dead ends: 527 [2019-11-06 22:00:27,915 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2019-11-06 22:00:27,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2019-11-06 22:00:28,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 459. [2019-11-06 22:00:28,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2019-11-06 22:00:28,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 544 transitions. [2019-11-06 22:00:28,005 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 544 transitions. Word has length 83 [2019-11-06 22:00:28,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:00:28,006 INFO L462 AbstractCegarLoop]: Abstraction has 459 states and 544 transitions. [2019-11-06 22:00:28,006 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-06 22:00:28,006 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 544 transitions. [2019-11-06 22:00:28,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-11-06 22:00:28,008 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:00:28,008 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:00:28,008 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:00:28,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:00:28,009 INFO L82 PathProgramCache]: Analyzing trace with hash 750932028, now seen corresponding path program 1 times [2019-11-06 22:00:28,009 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:00:28,009 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285747787] [2019-11-06 22:00:28,009 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:00:28,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:28,336 WARN L191 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-11-06 22:00:28,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:28,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:28,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:28,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:28,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:28,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:28,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:28,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:28,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:28,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:28,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:00:28,439 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285747787] [2019-11-06 22:00:28,439 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:00:28,439 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-06 22:00:28,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785343639] [2019-11-06 22:00:28,441 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-06 22:00:28,441 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:00:28,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-06 22:00:28,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-06 22:00:28,443 INFO L87 Difference]: Start difference. First operand 459 states and 544 transitions. Second operand 8 states. [2019-11-06 22:00:29,421 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:29,670 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:29,931 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:30,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:00:30,790 INFO L93 Difference]: Finished difference Result 839 states and 1035 transitions. [2019-11-06 22:00:30,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-06 22:00:30,795 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2019-11-06 22:00:30,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:00:30,799 INFO L225 Difference]: With dead ends: 839 [2019-11-06 22:00:30,799 INFO L226 Difference]: Without dead ends: 515 [2019-11-06 22:00:30,800 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-11-06 22:00:30,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2019-11-06 22:00:30,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 459. [2019-11-06 22:00:30,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2019-11-06 22:00:30,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 543 transitions. [2019-11-06 22:00:30,900 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 543 transitions. Word has length 83 [2019-11-06 22:00:30,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:00:30,900 INFO L462 AbstractCegarLoop]: Abstraction has 459 states and 543 transitions. [2019-11-06 22:00:30,901 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-06 22:00:30,901 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 543 transitions. [2019-11-06 22:00:30,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-11-06 22:00:30,902 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:00:30,903 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:00:30,903 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:00:30,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:00:30,903 INFO L82 PathProgramCache]: Analyzing trace with hash 678545470, now seen corresponding path program 1 times [2019-11-06 22:00:30,903 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:00:30,904 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149453355] [2019-11-06 22:00:30,904 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:00:30,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:31,184 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-11-06 22:00:31,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:31,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:31,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:31,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:31,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:31,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:31,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:31,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:31,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:31,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:31,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:00:31,338 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149453355] [2019-11-06 22:00:31,338 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:00:31,338 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-06 22:00:31,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155183682] [2019-11-06 22:00:31,340 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-06 22:00:31,345 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:00:31,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-06 22:00:31,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2019-11-06 22:00:31,346 INFO L87 Difference]: Start difference. First operand 459 states and 543 transitions. Second operand 12 states. [2019-11-06 22:00:32,155 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:32,424 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:00:32,690 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:00:33,390 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:00:33,655 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:00:33,934 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:34,190 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:35,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:00:35,307 INFO L93 Difference]: Finished difference Result 955 states and 1181 transitions. [2019-11-06 22:00:35,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-06 22:00:35,307 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 83 [2019-11-06 22:00:35,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:00:35,313 INFO L225 Difference]: With dead ends: 955 [2019-11-06 22:00:35,314 INFO L226 Difference]: Without dead ends: 520 [2019-11-06 22:00:35,317 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2019-11-06 22:00:35,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2019-11-06 22:00:35,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 466. [2019-11-06 22:00:35,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2019-11-06 22:00:35,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 550 transitions. [2019-11-06 22:00:35,433 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 550 transitions. Word has length 83 [2019-11-06 22:00:35,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:00:35,434 INFO L462 AbstractCegarLoop]: Abstraction has 466 states and 550 transitions. [2019-11-06 22:00:35,434 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-06 22:00:35,434 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 550 transitions. [2019-11-06 22:00:35,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-11-06 22:00:35,437 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:00:35,437 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:00:35,437 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:00:35,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:00:35,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1174041569, now seen corresponding path program 1 times [2019-11-06 22:00:35,438 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:00:35,438 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421353570] [2019-11-06 22:00:35,439 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:00:35,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:35,726 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-11-06 22:00:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:35,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:35,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:35,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:35,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:35,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:35,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:35,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:35,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:35,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:35,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:35,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:35,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:35,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:35,925 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-06 22:00:35,925 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421353570] [2019-11-06 22:00:35,926 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212564605] [2019-11-06 22:00:35,926 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:00:36,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:36,105 INFO L256 TraceCheckSpWp]: Trace formula consists of 751 conjuncts, 29 conjunts are in the unsatisfiable core [2019-11-06 22:00:36,116 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 22:00:36,251 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:00:36,252 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-06 22:00:36,252 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 17 [2019-11-06 22:00:36,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474858855] [2019-11-06 22:00:36,253 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-06 22:00:36,253 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:00:36,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-06 22:00:36,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2019-11-06 22:00:36,253 INFO L87 Difference]: Start difference. First operand 466 states and 550 transitions. Second operand 8 states. [2019-11-06 22:00:36,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:00:36,781 INFO L93 Difference]: Finished difference Result 1313 states and 1584 transitions. [2019-11-06 22:00:36,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-06 22:00:36,781 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 95 [2019-11-06 22:00:36,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:00:36,787 INFO L225 Difference]: With dead ends: 1313 [2019-11-06 22:00:36,787 INFO L226 Difference]: Without dead ends: 871 [2019-11-06 22:00:36,789 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 119 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2019-11-06 22:00:36,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2019-11-06 22:00:37,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 868. [2019-11-06 22:00:37,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 868 states. [2019-11-06 22:00:37,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 1026 transitions. [2019-11-06 22:00:37,011 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 1026 transitions. Word has length 95 [2019-11-06 22:00:37,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:00:37,012 INFO L462 AbstractCegarLoop]: Abstraction has 868 states and 1026 transitions. [2019-11-06 22:00:37,012 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-06 22:00:37,012 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 1026 transitions. [2019-11-06 22:00:37,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-11-06 22:00:37,015 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:00:37,016 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:00:37,231 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:00:37,232 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:00:37,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:00:37,232 INFO L82 PathProgramCache]: Analyzing trace with hash 175480453, now seen corresponding path program 1 times [2019-11-06 22:00:37,232 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:00:37,233 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876258584] [2019-11-06 22:00:37,233 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:00:37,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:37,563 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-11-06 22:00:37,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:37,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:37,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:37,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:37,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:37,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:37,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:37,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:37,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:37,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:37,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:37,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:37,706 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-06 22:00:37,707 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876258584] [2019-11-06 22:00:37,707 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:00:37,707 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-11-06 22:00:37,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311080289] [2019-11-06 22:00:37,708 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-06 22:00:37,708 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:00:37,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-06 22:00:37,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2019-11-06 22:00:37,709 INFO L87 Difference]: Start difference. First operand 868 states and 1026 transitions. Second operand 14 states. [2019-11-06 22:00:38,696 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:38,975 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:00:39,233 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:00:39,852 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-11-06 22:00:40,664 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-11-06 22:00:41,074 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:41,716 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:41,995 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:00:42,291 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:00:43,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:00:43,999 INFO L93 Difference]: Finished difference Result 1829 states and 2312 transitions. [2019-11-06 22:00:44,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-11-06 22:00:44,000 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 99 [2019-11-06 22:00:44,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:00:44,007 INFO L225 Difference]: With dead ends: 1829 [2019-11-06 22:00:44,007 INFO L226 Difference]: Without dead ends: 985 [2019-11-06 22:00:44,011 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=201, Invalid=729, Unknown=0, NotChecked=0, Total=930 [2019-11-06 22:00:44,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2019-11-06 22:00:44,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 802. [2019-11-06 22:00:44,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 802 states. [2019-11-06 22:00:44,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 934 transitions. [2019-11-06 22:00:44,156 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 934 transitions. Word has length 99 [2019-11-06 22:00:44,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:00:44,156 INFO L462 AbstractCegarLoop]: Abstraction has 802 states and 934 transitions. [2019-11-06 22:00:44,156 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-06 22:00:44,156 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 934 transitions. [2019-11-06 22:00:44,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-11-06 22:00:44,159 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:00:44,159 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:00:44,160 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:00:44,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:00:44,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1676429373, now seen corresponding path program 1 times [2019-11-06 22:00:44,160 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:00:44,160 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438215995] [2019-11-06 22:00:44,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:00:44,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:44,503 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-11-06 22:00:44,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:44,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:44,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:44,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:44,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:44,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:44,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:44,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:44,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:44,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:44,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:44,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:44,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:44,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:44,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:00:44,660 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:00:44,661 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438215995] [2019-11-06 22:00:44,661 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:00:44,661 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-11-06 22:00:44,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025139903] [2019-11-06 22:00:44,662 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-06 22:00:44,662 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:00:44,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-06 22:00:44,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2019-11-06 22:00:44,663 INFO L87 Difference]: Start difference. First operand 802 states and 934 transitions. Second operand 13 states. [2019-11-06 22:00:45,824 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-11-06 22:00:46,114 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187