/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product60.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 12:35:13,922 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 12:35:13,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 12:35:13,945 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 12:35:13,945 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 12:35:13,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 12:35:13,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 12:35:13,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 12:35:13,960 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 12:35:13,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 12:35:13,964 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 12:35:13,966 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 12:35:13,966 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 12:35:13,969 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 12:35:13,971 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 12:35:13,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 12:35:13,975 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 12:35:13,976 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 12:35:13,977 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 12:35:13,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 12:35:13,987 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 12:35:13,990 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 12:35:13,991 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 12:35:13,991 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 12:35:13,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 12:35:13,994 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 12:35:13,994 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 12:35:13,997 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 12:35:13,997 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 12:35:13,999 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 12:35:13,999 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 12:35:14,000 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 12:35:14,001 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 12:35:14,002 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 12:35:14,003 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 12:35:14,003 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 12:35:14,004 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 12:35:14,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 12:35:14,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 12:35:14,005 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 12:35:14,006 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 12:35:14,007 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 12:35:14,033 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 12:35:14,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 12:35:14,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 12:35:14,034 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 12:35:14,035 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 12:35:14,035 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 12:35:14,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 12:35:14,037 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 12:35:14,037 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 12:35:14,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 12:35:14,038 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 12:35:14,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 12:35:14,038 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 12:35:14,038 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 12:35:14,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 12:35:14,039 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 12:35:14,039 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 12:35:14,039 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 12:35:14,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:35:14,040 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 12:35:14,040 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 12:35:14,040 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 12:35:14,043 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 12:35:14,303 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 12:35:14,317 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 12:35:14,320 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 12:35:14,322 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 12:35:14,322 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 12:35:14,323 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product60.cil.c [2020-07-07 12:35:14,405 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a2aa85dd/4ae38fb8a3c74d73b345570453e3ec59/FLAGf6e6de1d0 [2020-07-07 12:35:14,927 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 12:35:14,932 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product60.cil.c [2020-07-07 12:35:14,950 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a2aa85dd/4ae38fb8a3c74d73b345570453e3ec59/FLAGf6e6de1d0 [2020-07-07 12:35:15,299 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a2aa85dd/4ae38fb8a3c74d73b345570453e3ec59 [2020-07-07 12:35:15,308 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 12:35:15,310 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 12:35:15,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 12:35:15,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 12:35:15,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 12:35:15,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:35:15" (1/1) ... [2020-07-07 12:35:15,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b365038 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:35:15, skipping insertion in model container [2020-07-07 12:35:15,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:35:15" (1/1) ... [2020-07-07 12:35:15,328 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 12:35:15,390 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 12:35:15,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:35:15,917 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 12:35:15,992 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:35:16,029 INFO L208 MainTranslator]: Completed translation [2020-07-07 12:35:16,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:35:16 WrapperNode [2020-07-07 12:35:16,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 12:35:16,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 12:35:16,031 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 12:35:16,031 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 12:35:16,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:35:16" (1/1) ... [2020-07-07 12:35:16,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:35:16" (1/1) ... [2020-07-07 12:35:16,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:35:16" (1/1) ... [2020-07-07 12:35:16,065 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:35:16" (1/1) ... [2020-07-07 12:35:16,094 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:35:16" (1/1) ... [2020-07-07 12:35:16,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:35:16" (1/1) ... [2020-07-07 12:35:16,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:35:16" (1/1) ... [2020-07-07 12:35:16,117 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 12:35:16,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 12:35:16,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 12:35:16,118 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 12:35:16,119 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:35:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:35:16,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 12:35:16,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 12:35:16,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 12:35:16,183 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 12:35:16,183 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 12:35:16,183 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 12:35:16,183 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-07 12:35:16,184 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 12:35:16,184 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-07-07 12:35:16,184 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 12:35:16,184 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 12:35:16,185 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 12:35:16,185 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 12:35:16,185 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 12:35:16,185 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-07 12:35:16,185 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-07 12:35:16,186 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-07 12:35:16,186 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-07 12:35:16,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:35:16,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 12:35:16,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 12:35:16,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 12:35:16,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 12:35:16,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 12:35:16,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 12:35:16,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 12:35:16,191 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 12:35:16,191 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 12:35:16,191 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 12:35:16,192 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 12:35:16,192 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 12:35:16,192 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 12:35:16,193 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 12:35:16,193 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 12:35:16,193 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 12:35:16,194 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 12:35:16,194 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-07 12:35:16,194 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-07 12:35:16,194 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 12:35:16,194 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 12:35:16,194 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 12:35:16,194 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 12:35:16,195 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 12:35:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 12:35:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 12:35:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 12:35:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 12:35:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 12:35:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-07 12:35:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-07 12:35:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 12:35:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 12:35:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 12:35:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 12:35:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 12:35:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 12:35:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-07 12:35:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-07 12:35:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 12:35:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 12:35:16,197 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 12:35:16,197 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 12:35:16,197 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:35:16,197 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 12:35:16,197 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 12:35:16,197 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-07 12:35:16,197 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-07 12:35:16,197 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-07 12:35:16,197 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-07-07 12:35:16,197 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 12:35:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 12:35:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 12:35:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 12:35:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 12:35:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 12:35:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 12:35:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 12:35:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 12:35:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 12:35:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 12:35:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 12:35:16,200 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 12:35:16,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 12:35:16,200 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 12:35:16,200 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 12:35:16,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 12:35:16,200 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 12:35:16,201 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 12:35:16,202 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 12:35:16,202 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 12:35:16,202 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 12:35:16,202 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 12:35:16,202 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 12:35:16,203 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 12:35:16,203 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 12:35:16,203 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 12:35:16,203 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 12:35:16,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 12:35:16,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 12:35:16,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 12:35:17,338 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 12:35:17,338 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 12:35:17,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:35:17 BoogieIcfgContainer [2020-07-07 12:35:17,345 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 12:35:17,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 12:35:17,347 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 12:35:17,352 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 12:35:17,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 12:35:15" (1/3) ... [2020-07-07 12:35:17,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea7c914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:35:17, skipping insertion in model container [2020-07-07 12:35:17,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:35:16" (2/3) ... [2020-07-07 12:35:17,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea7c914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:35:17, skipping insertion in model container [2020-07-07 12:35:17,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:35:17" (3/3) ... [2020-07-07 12:35:17,358 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product60.cil.c [2020-07-07 12:35:17,369 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 12:35:17,379 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 12:35:17,394 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 12:35:17,420 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 12:35:17,420 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 12:35:17,420 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 12:35:17,420 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 12:35:17,421 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 12:35:17,421 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 12:35:17,421 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 12:35:17,422 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 12:35:17,455 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states. [2020-07-07 12:35:17,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-07 12:35:17,498 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:35:17,499 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:35:17,500 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:35:17,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:35:17,509 INFO L82 PathProgramCache]: Analyzing trace with hash 179280132, now seen corresponding path program 1 times [2020-07-07 12:35:17,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:35:17,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [492438446] [2020-07-07 12:35:17,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:35:17,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:18,338 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:35:18,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:18,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:18,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:18,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:18,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:18,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:18,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:18,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:18,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:35:18,450 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:35:18,452 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [492438446] [2020-07-07 12:35:18,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:35:18,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 12:35:18,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835605447] [2020-07-07 12:35:18,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 12:35:18,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:35:18,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 12:35:18,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:35:18,477 INFO L87 Difference]: Start difference. First operand 350 states. Second operand 3 states. [2020-07-07 12:35:19,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:35:19,919 INFO L93 Difference]: Finished difference Result 570 states and 673 transitions. [2020-07-07 12:35:19,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 12:35:19,921 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-07-07 12:35:19,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:35:19,941 INFO L225 Difference]: With dead ends: 570 [2020-07-07 12:35:19,942 INFO L226 Difference]: Without dead ends: 345 [2020-07-07 12:35:19,951 INFO L675 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 [2020-07-07 12:35:19,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-07-07 12:35:20,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 299. [2020-07-07 12:35:20,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-07-07 12:35:20,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 326 transitions. [2020-07-07 12:35:20,136 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 326 transitions. Word has length 153 [2020-07-07 12:35:20,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:35:20,137 INFO L479 AbstractCegarLoop]: Abstraction has 299 states and 326 transitions. [2020-07-07 12:35:20,137 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 12:35:20,137 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 326 transitions. [2020-07-07 12:35:20,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-07 12:35:20,142 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:35:20,142 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:35:20,143 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 12:35:20,143 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:35:20,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:35:20,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1644789212, now seen corresponding path program 1 times [2020-07-07 12:35:20,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:35:20,144 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1556113343] [2020-07-07 12:35:20,144 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:35:20,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:20,505 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:35:20,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:20,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:20,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:20,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:20,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:20,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:20,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:20,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:35:20,587 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:35:20,587 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1556113343] [2020-07-07 12:35:20,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:35:20,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 12:35:20,588 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644193304] [2020-07-07 12:35:20,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 12:35:20,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:35:20,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 12:35:20,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 12:35:20,590 INFO L87 Difference]: Start difference. First operand 299 states and 326 transitions. Second operand 4 states. [2020-07-07 12:35:21,203 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:35:22,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:35:22,341 INFO L93 Difference]: Finished difference Result 477 states and 536 transitions. [2020-07-07 12:35:22,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 12:35:22,342 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-07-07 12:35:22,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:35:22,348 INFO L225 Difference]: With dead ends: 477 [2020-07-07 12:35:22,348 INFO L226 Difference]: Without dead ends: 328 [2020-07-07 12:35:22,350 INFO L675 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 [2020-07-07 12:35:22,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2020-07-07 12:35:22,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 289. [2020-07-07 12:35:22,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2020-07-07 12:35:22,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 313 transitions. [2020-07-07 12:35:22,438 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 313 transitions. Word has length 154 [2020-07-07 12:35:22,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:35:22,438 INFO L479 AbstractCegarLoop]: Abstraction has 289 states and 313 transitions. [2020-07-07 12:35:22,439 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 12:35:22,439 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 313 transitions. [2020-07-07 12:35:22,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-07-07 12:35:22,441 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:35:22,442 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:35:22,442 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 12:35:22,442 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:35:22,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:35:22,443 INFO L82 PathProgramCache]: Analyzing trace with hash -205094291, now seen corresponding path program 1 times [2020-07-07 12:35:22,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:35:22,443 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1305687079] [2020-07-07 12:35:22,443 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:35:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:22,768 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:35:22,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:22,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:22,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:22,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:22,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:22,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:22,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:22,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:22,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:35:22,958 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:35:22,959 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1305687079] [2020-07-07 12:35:22,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:35:22,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-07 12:35:22,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747433877] [2020-07-07 12:35:22,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 12:35:22,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:35:22,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 12:35:22,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-07 12:35:22,962 INFO L87 Difference]: Start difference. First operand 289 states and 313 transitions. Second operand 10 states. [2020-07-07 12:35:23,419 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:35:23,778 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:35:24,020 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-07 12:35:24,261 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:35:24,494 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:35:24,733 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:35:25,636 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:35:28,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:35:28,475 INFO L93 Difference]: Finished difference Result 817 states and 945 transitions. [2020-07-07 12:35:28,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-07 12:35:28,475 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-07-07 12:35:28,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:35:28,482 INFO L225 Difference]: With dead ends: 817 [2020-07-07 12:35:28,482 INFO L226 Difference]: Without dead ends: 638 [2020-07-07 12:35:28,484 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-07-07 12:35:28,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2020-07-07 12:35:28,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 539. [2020-07-07 12:35:28,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-07-07 12:35:28,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 602 transitions. [2020-07-07 12:35:28,682 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 602 transitions. Word has length 167 [2020-07-07 12:35:28,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:35:28,682 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 602 transitions. [2020-07-07 12:35:28,682 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 12:35:28,683 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 602 transitions. [2020-07-07 12:35:28,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-07-07 12:35:28,686 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:35:28,686 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:35:28,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 12:35:28,687 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:35:28,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:35:28,687 INFO L82 PathProgramCache]: Analyzing trace with hash 935759642, now seen corresponding path program 1 times [2020-07-07 12:35:28,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:35:28,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1696717422] [2020-07-07 12:35:28,688 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:35:28,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:28,992 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:35:29,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:29,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:29,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:29,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:29,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:29,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:29,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:29,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:29,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:35:29,171 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:35:29,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1696717422] [2020-07-07 12:35:29,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:35:29,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:35:29,172 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034747427] [2020-07-07 12:35:29,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:35:29,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:35:29,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:35:29,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:35:29,174 INFO L87 Difference]: Start difference. First operand 539 states and 602 transitions. Second operand 9 states. [2020-07-07 12:35:29,743 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:35:32,351 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:35:32,605 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:35:32,911 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:35:33,240 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:35:33,530 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:35:33,750 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:35:33,989 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:35:35,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:35:35,219 INFO L93 Difference]: Finished difference Result 1487 states and 1773 transitions. [2020-07-07 12:35:35,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-07 12:35:35,224 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-07-07 12:35:35,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:35:35,233 INFO L225 Difference]: With dead ends: 1487 [2020-07-07 12:35:35,233 INFO L226 Difference]: Without dead ends: 1058 [2020-07-07 12:35:35,235 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-07-07 12:35:35,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2020-07-07 12:35:35,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 951. [2020-07-07 12:35:35,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 951 states. [2020-07-07 12:35:35,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1085 transitions. [2020-07-07 12:35:35,566 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1085 transitions. Word has length 172 [2020-07-07 12:35:35,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:35:35,567 INFO L479 AbstractCegarLoop]: Abstraction has 951 states and 1085 transitions. [2020-07-07 12:35:35,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:35:35,567 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1085 transitions. [2020-07-07 12:35:35,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-07 12:35:35,572 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:35:35,573 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:35:35,573 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 12:35:35,573 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:35:35,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:35:35,574 INFO L82 PathProgramCache]: Analyzing trace with hash -455034656, now seen corresponding path program 1 times [2020-07-07 12:35:35,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:35:35,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1113466481] [2020-07-07 12:35:35,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:35:35,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:35,875 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:35:35,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:35,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:35,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:35,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:36,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:36,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:36,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:35:36,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:35:36,071 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:35:36,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1113466481] [2020-07-07 12:35:36,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:35:36,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 12:35:36,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054840180] [2020-07-07 12:35:36,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 12:35:36,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:35:36,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 12:35:36,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-07 12:35:36,074 INFO L87 Difference]: Start difference. First operand 951 states and 1085 transitions. Second operand 6 states. [2020-07-07 12:35:36,581 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:35:38,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:35:38,767 INFO L93 Difference]: Finished difference Result 2131 states and 2544 transitions. [2020-07-07 12:35:38,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-07 12:35:38,768 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 177 [2020-07-07 12:35:38,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:35:38,777 INFO L225 Difference]: With dead ends: 2131 [2020-07-07 12:35:38,777 INFO L226 Difference]: Without dead ends: 1290 [2020-07-07 12:35:38,781 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-07-07 12:35:38,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1290 states. [2020-07-07 12:35:39,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1290 to 1190. [2020-07-07 12:35:39,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1190 states. [2020-07-07 12:35:39,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1190 states to 1190 states and 1353 transitions. [2020-07-07 12:35:39,120 INFO L78 Accepts]: Start accepts. Automaton has 1190 states and 1353 transitions. Word has length 177 [2020-07-07 12:35:39,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:35:39,120 INFO L479 AbstractCegarLoop]: Abstraction has 1190 states and 1353 transitions. [2020-07-07 12:35:39,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 12:35:39,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1190 states and 1353 transitions. [2020-07-07 12:35:39,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-07 12:35:39,124 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:35:39,124 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:35:39,124 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 12:35:39,125 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:35:39,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:35:39,125 INFO L82 PathProgramCache]: Analyzing trace with hash 403214129, now seen corresponding path program 1 times [2020-07-07 12:35:39,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:35:39,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [636148564] [2020-07-07 12:35:39,126 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:35:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:35:39,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:35:39,439 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:35:39,440 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 12:35:39,440 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 12:35:39,441 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 12:35:39,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 12:35:39 BoogieIcfgContainer [2020-07-07 12:35:39,467 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 12:35:39,469 INFO L168 Benchmark]: Toolchain (without parser) took 24159.51 ms. Allocated memory was 139.5 MB in the beginning and 693.1 MB in the end (delta: 553.6 MB). Free memory was 103.1 MB in the beginning and 107.4 MB in the end (delta: -4.2 MB). Peak memory consumption was 549.4 MB. Max. memory is 7.1 GB. [2020-07-07 12:35:39,470 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 12:35:39,471 INFO L168 Benchmark]: CACSL2BoogieTranslator took 719.12 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 102.9 MB in the beginning and 171.4 MB in the end (delta: -68.5 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. [2020-07-07 12:35:39,472 INFO L168 Benchmark]: Boogie Preprocessor took 87.11 ms. Allocated memory is still 203.9 MB. Free memory was 171.4 MB in the beginning and 166.8 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-07-07 12:35:39,473 INFO L168 Benchmark]: RCFGBuilder took 1227.64 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 166.8 MB in the beginning and 170.8 MB in the end (delta: -4.0 MB). Peak memory consumption was 80.6 MB. Max. memory is 7.1 GB. [2020-07-07 12:35:39,474 INFO L168 Benchmark]: TraceAbstraction took 22120.97 ms. Allocated memory was 237.0 MB in the beginning and 693.1 MB in the end (delta: 456.1 MB). Free memory was 169.4 MB in the beginning and 107.4 MB in the end (delta: 62.0 MB). Peak memory consumption was 518.1 MB. Max. memory is 7.1 GB. [2020-07-07 12:35:39,478 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 719.12 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 102.9 MB in the beginning and 171.4 MB in the end (delta: -68.5 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.11 ms. Allocated memory is still 203.9 MB. Free memory was 171.4 MB in the beginning and 166.8 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1227.64 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 166.8 MB in the beginning and 170.8 MB in the end (delta: -4.0 MB). Peak memory consumption was 80.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22120.97 ms. Allocated memory was 237.0 MB in the beginning and 693.1 MB in the end (delta: 456.1 MB). Free memory was 169.4 MB in the beginning and 107.4 MB in the end (delta: 62.0 MB). Peak memory consumption was 518.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 769]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L124] int pumpRunning = 0; [L125] int systemActive = 1; [L568] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L812] int waterLevel = 1; [L813] int methaneLevelCritical = 0; [L915] int cleanupTimeShifts = 4; [L988] int retValue_acc ; [L989] int tmp ; [L993] FCALL select_helpers() [L994] FCALL select_features() [L995] CALL, EXPR valid_product() [L803] int retValue_acc ; [L806] retValue_acc = 1 [L807] return (retValue_acc); [L995] RET, EXPR valid_product() [L995] tmp = valid_product() [L997] COND TRUE \read(tmp) [L999] FCALL setup() [L1000] CALL runTest() [L982] CALL test() [L47] int splverifierCounter ; [L48] int tmp ; [L49] int tmp___0 ; [L50] int tmp___1 ; [L51] int tmp___2 ; [L54] splverifierCounter = 0 [L56] COND TRUE 1 [L58] COND TRUE splverifierCounter < 4 [L64] tmp = __VERIFIER_nondet_int() [L66] COND TRUE \read(tmp) [L68] CALL waterRise() [L830] COND TRUE waterLevel < 2 [L831] waterLevel = waterLevel + 1 [L68] RET waterRise() [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___2)) [L92] tmp___1 = __VERIFIER_nondet_int() [L94] COND TRUE \read(tmp___1) [L96] CALL stopSystem() [L343] COND FALSE !(\read(pumpRunning)) [L350] systemActive = 0 [L96] RET stopSystem() [L103] CALL timeShift() [L132] COND FALSE !(\read(pumpRunning)) [L139] COND FALSE !(\read(systemActive)) [L147] CALL __utac_acc__Specification3_spec__1() [L366] int tmp ; [L367] int tmp___0 ; [L368] int tmp___1 ; [L372] CALL, EXPR isMethaneLevelCritical() [L851] int retValue_acc ; [L854] retValue_acc = methaneLevelCritical [L855] return (retValue_acc); [L372] RET, EXPR isMethaneLevelCritical() [L372] tmp = isMethaneLevelCritical() [L374] COND FALSE !(\read(tmp)) [L378] CALL, EXPR getWaterLevel() [L883] int retValue_acc ; [L886] retValue_acc = waterLevel [L887] return (retValue_acc); [L378] RET, EXPR getWaterLevel() [L378] tmp___0 = getWaterLevel() [L380] COND TRUE tmp___0 == 2 [L382] CALL, EXPR isPumpRunning() [L257] int retValue_acc ; [L260] retValue_acc = pumpRunning [L261] return (retValue_acc); [L382] RET, EXPR isPumpRunning() [L382] tmp___1 = isPumpRunning() [L384] COND FALSE !(\read(tmp___1)) [L388] CALL __automaton_fail() [L769] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 662 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 22.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 17.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1426 SDtfs, 2833 SDslu, 1635 SDs, 0 SdLazy, 4114 SolverSat, 1020 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1190occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 391 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...