/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_product01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 12:31:09,913 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 12:31:09,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 12:31:09,937 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 12:31:09,937 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 12:31:09,938 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 12:31:09,940 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 12:31:09,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 12:31:09,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 12:31:09,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 12:31:09,954 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 12:31:09,954 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 12:31:09,955 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 12:31:09,956 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 12:31:09,958 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 12:31:09,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 12:31:09,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 12:31:09,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 12:31:09,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 12:31:09,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 12:31:09,972 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 12:31:09,977 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 12:31:09,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 12:31:09,979 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 12:31:09,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 12:31:09,984 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 12:31:09,984 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 12:31:09,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 12:31:09,986 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 12:31:09,986 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 12:31:09,987 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 12:31:09,988 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 12:31:09,990 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 12:31:09,991 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 12:31:09,994 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 12:31:09,994 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 12:31:09,995 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 12:31:09,995 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 12:31:09,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 12:31:09,996 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 12:31:09,997 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 12:31:09,998 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 12:31:10,014 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 12:31:10,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 12:31:10,016 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 12:31:10,016 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 12:31:10,016 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 12:31:10,017 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 12:31:10,017 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 12:31:10,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 12:31:10,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 12:31:10,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 12:31:10,018 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 12:31:10,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 12:31:10,019 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 12:31:10,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 12:31:10,020 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 12:31:10,020 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 12:31:10,020 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 12:31:10,020 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 12:31:10,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:31:10,021 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 12:31:10,021 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 12:31:10,021 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 12:31:10,021 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 12:31:10,292 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 12:31:10,308 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 12:31:10,311 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 12:31:10,313 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 12:31:10,313 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 12:31:10,314 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c [2020-07-07 12:31:10,392 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/797d585d1/2df2da41ae434e83b100fa328dbc38c2/FLAG3acabc2f8 [2020-07-07 12:31:10,955 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 12:31:10,956 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c [2020-07-07 12:31:10,984 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/797d585d1/2df2da41ae434e83b100fa328dbc38c2/FLAG3acabc2f8 [2020-07-07 12:31:11,217 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/797d585d1/2df2da41ae434e83b100fa328dbc38c2 [2020-07-07 12:31:11,230 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 12:31:11,232 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 12:31:11,233 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 12:31:11,233 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 12:31:11,237 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 12:31:11,238 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:31:11" (1/1) ... [2020-07-07 12:31:11,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12ddd5e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:31:11, skipping insertion in model container [2020-07-07 12:31:11,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:31:11" (1/1) ... [2020-07-07 12:31:11,250 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 12:31:11,292 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 12:31:11,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:31:11,769 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 12:31:11,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:31:11,881 INFO L208 MainTranslator]: Completed translation [2020-07-07 12:31:11,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:31:11 WrapperNode [2020-07-07 12:31:11,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 12:31:11,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 12:31:11,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 12:31:11,882 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 12:31:11,895 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:31:11" (1/1) ... [2020-07-07 12:31:11,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:31:11" (1/1) ... [2020-07-07 12:31:11,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:31:11" (1/1) ... [2020-07-07 12:31:11,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:31:11" (1/1) ... [2020-07-07 12:31:11,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:31:11" (1/1) ... [2020-07-07 12:31:11,971 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:31:11" (1/1) ... [2020-07-07 12:31:11,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:31:11" (1/1) ... [2020-07-07 12:31:11,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 12:31:11,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 12:31:11,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 12:31:11,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 12:31:12,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:31:11" (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 12:31:12,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 12:31:12,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 12:31:12,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 12:31:12,068 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 12:31:12,069 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 12:31:12,069 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 12:31:12,069 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 12:31:12,069 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 12:31:12,069 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 12:31:12,069 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 12:31:12,069 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 12:31:12,069 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 12:31:12,070 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 12:31:12,070 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 12:31:12,070 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 12:31:12,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:31:12,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 12:31:12,071 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 12:31:12,071 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 12:31:12,071 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 12:31:12,071 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 12:31:12,071 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 12:31:12,071 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 12:31:12,072 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 12:31:12,072 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 12:31:12,072 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 12:31:12,072 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 12:31:12,072 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 12:31:12,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 12:31:12,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 12:31:12,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 12:31:12,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 12:31:12,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 12:31:12,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 12:31:12,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 12:31:12,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 12:31:12,074 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 12:31:12,074 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 12:31:12,074 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 12:31:12,074 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 12:31:12,074 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 12:31:12,074 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 12:31:12,075 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 12:31:12,075 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 12:31:12,075 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 12:31:12,075 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:31:12,075 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 12:31:12,075 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 12:31:12,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 12:31:12,076 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 12:31:12,076 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 12:31:12,076 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 12:31:12,076 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 12:31:12,076 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 12:31:12,076 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 12:31:12,077 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 12:31:12,077 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 12:31:12,077 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 12:31:12,077 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 12:31:12,077 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 12:31:12,078 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 12:31:12,078 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 12:31:12,078 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 12:31:12,078 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 12:31:12,078 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 12:31:12,078 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 12:31:12,079 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 12:31:12,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 12:31:12,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 12:31:12,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 12:31:12,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 12:31:12,079 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 12:31:12,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 12:31:12,080 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 12:31:12,080 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 12:31:12,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 12:31:12,080 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 12:31:12,080 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 12:31:12,080 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 12:31:12,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 12:31:12,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 12:31:12,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 12:31:13,128 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 12:31:13,129 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 12:31:13,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:31:13 BoogieIcfgContainer [2020-07-07 12:31:13,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 12:31:13,137 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 12:31:13,138 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 12:31:13,141 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 12:31:13,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 12:31:11" (1/3) ... [2020-07-07 12:31:13,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@732d4ca8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:31:13, skipping insertion in model container [2020-07-07 12:31:13,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:31:11" (2/3) ... [2020-07-07 12:31:13,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@732d4ca8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:31:13, skipping insertion in model container [2020-07-07 12:31:13,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:31:13" (3/3) ... [2020-07-07 12:31:13,145 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product01.cil.c [2020-07-07 12:31:13,157 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 12:31:13,166 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 12:31:13,181 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 12:31:13,204 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 12:31:13,204 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 12:31:13,204 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 12:31:13,205 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 12:31:13,205 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 12:31:13,205 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 12:31:13,205 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 12:31:13,206 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 12:31:13,226 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-07-07 12:31:13,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-07 12:31:13,245 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:31:13,247 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 12:31:13,247 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:31:13,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:31:13,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1134805363, now seen corresponding path program 1 times [2020-07-07 12:31:13,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:31:13,264 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [233003654] [2020-07-07 12:31:13,265 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:31:13,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:14,042 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:31:14,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:14,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:14,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:14,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:14,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:14,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:14,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:14,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:14,275 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 12:31:14,275 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:31:14,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [233003654] [2020-07-07 12:31:14,279 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:31:14,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 12:31:14,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923431086] [2020-07-07 12:31:14,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 12:31:14,286 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:31:14,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 12:31:14,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:31:14,304 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 3 states. [2020-07-07 12:31:15,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:31:15,357 INFO L93 Difference]: Finished difference Result 365 states and 438 transitions. [2020-07-07 12:31:15,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 12:31:15,359 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-07-07 12:31:15,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:31:15,376 INFO L225 Difference]: With dead ends: 365 [2020-07-07 12:31:15,376 INFO L226 Difference]: Without dead ends: 238 [2020-07-07 12:31:15,381 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:31:15,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-07-07 12:31:15,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 201. [2020-07-07 12:31:15,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-07-07 12:31:15,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 215 transitions. [2020-07-07 12:31:15,494 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 215 transitions. Word has length 153 [2020-07-07 12:31:15,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:31:15,495 INFO L479 AbstractCegarLoop]: Abstraction has 201 states and 215 transitions. [2020-07-07 12:31:15,495 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 12:31:15,495 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 215 transitions. [2020-07-07 12:31:15,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-07 12:31:15,499 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:31:15,499 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, 1] [2020-07-07 12:31:15,500 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 12:31:15,500 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:31:15,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:31:15,501 INFO L82 PathProgramCache]: Analyzing trace with hash 2008587575, now seen corresponding path program 1 times [2020-07-07 12:31:15,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:31:15,501 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [294633779] [2020-07-07 12:31:15,501 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:31:15,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:15,839 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:31:15,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:15,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:15,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:15,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:15,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:15,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:15,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:15,960 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 12:31:15,960 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:31:15,960 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [294633779] [2020-07-07 12:31:15,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:31:15,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 12:31:15,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193204950] [2020-07-07 12:31:15,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 12:31:15,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:31:15,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 12:31:15,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 12:31:15,963 INFO L87 Difference]: Start difference. First operand 201 states and 215 transitions. Second operand 4 states. [2020-07-07 12:31:16,627 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:31:17,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:31:17,223 INFO L93 Difference]: Finished difference Result 282 states and 313 transitions. [2020-07-07 12:31:17,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 12:31:17,224 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-07-07 12:31:17,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:31:17,230 INFO L225 Difference]: With dead ends: 282 [2020-07-07 12:31:17,231 INFO L226 Difference]: Without dead ends: 221 [2020-07-07 12:31:17,236 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 12:31:17,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-07-07 12:31:17,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 191. [2020-07-07 12:31:17,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-07-07 12:31:17,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 202 transitions. [2020-07-07 12:31:17,314 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 202 transitions. Word has length 154 [2020-07-07 12:31:17,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:31:17,315 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 202 transitions. [2020-07-07 12:31:17,315 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 12:31:17,315 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 202 transitions. [2020-07-07 12:31:17,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-07-07 12:31:17,317 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:31:17,318 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] [2020-07-07 12:31:17,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 12:31:17,318 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:31:17,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:31:17,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1539733420, now seen corresponding path program 1 times [2020-07-07 12:31:17,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:31:17,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1636637225] [2020-07-07 12:31:17,319 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:31:17,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:17,688 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:31:17,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:17,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:17,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:17,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:17,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:17,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:17,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:17,947 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 12:31:17,948 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:31:17,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1636637225] [2020-07-07 12:31:17,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:31:17,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:31:17,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677154381] [2020-07-07 12:31:17,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:31:17,951 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:31:17,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:31:17,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:31:17,953 INFO L87 Difference]: Start difference. First operand 191 states and 202 transitions. Second operand 9 states. [2020-07-07 12:31:18,616 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:31:19,106 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:31:19,365 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:31:19,600 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:31:19,847 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:31:20,097 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:31:21,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:31:21,024 INFO L93 Difference]: Finished difference Result 302 states and 338 transitions. [2020-07-07 12:31:21,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-07 12:31:21,024 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-07-07 12:31:21,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:31:21,027 INFO L225 Difference]: With dead ends: 302 [2020-07-07 12:31:21,027 INFO L226 Difference]: Without dead ends: 221 [2020-07-07 12:31:21,029 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-07-07 12:31:21,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-07-07 12:31:21,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 191. [2020-07-07 12:31:21,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-07-07 12:31:21,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 201 transitions. [2020-07-07 12:31:21,091 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 201 transitions. Word has length 163 [2020-07-07 12:31:21,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:31:21,092 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 201 transitions. [2020-07-07 12:31:21,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:31:21,093 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 201 transitions. [2020-07-07 12:31:21,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-07-07 12:31:21,096 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:31:21,097 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] [2020-07-07 12:31:21,097 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 12:31:21,097 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:31:21,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:31:21,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1213081293, now seen corresponding path program 1 times [2020-07-07 12:31:21,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:31:21,099 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1520579999] [2020-07-07 12:31:21,099 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:31:21,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:21,452 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:31:21,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:21,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:21,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:21,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:21,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:21,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:21,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:21,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:21,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:21,582 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 12:31:21,583 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:31:21,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1520579999] [2020-07-07 12:31:21,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:31:21,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 12:31:21,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189930859] [2020-07-07 12:31:21,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 12:31:21,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:31:21,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 12:31:21,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-07-07 12:31:21,586 INFO L87 Difference]: Start difference. First operand 191 states and 201 transitions. Second operand 8 states. [2020-07-07 12:31:22,241 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:31:23,331 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:31:23,591 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:31:23,837 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:31:24,081 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:31:24,306 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:31:24,548 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:31:24,804 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:31:25,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:31:25,074 INFO L93 Difference]: Finished difference Result 368 states and 417 transitions. [2020-07-07 12:31:25,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 12:31:25,078 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 166 [2020-07-07 12:31:25,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:31:25,083 INFO L225 Difference]: With dead ends: 368 [2020-07-07 12:31:25,083 INFO L226 Difference]: Without dead ends: 287 [2020-07-07 12:31:25,085 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-07-07 12:31:25,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-07-07 12:31:25,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 262. [2020-07-07 12:31:25,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-07-07 12:31:25,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 284 transitions. [2020-07-07 12:31:25,187 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 284 transitions. Word has length 166 [2020-07-07 12:31:25,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:31:25,188 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 284 transitions. [2020-07-07 12:31:25,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 12:31:25,188 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 284 transitions. [2020-07-07 12:31:25,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-07-07 12:31:25,191 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:31:25,192 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] [2020-07-07 12:31:25,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 12:31:25,192 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:31:25,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:31:25,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1773237520, now seen corresponding path program 1 times [2020-07-07 12:31:25,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:31:25,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1741274030] [2020-07-07 12:31:25,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:31:25,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:25,512 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:31:25,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:25,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:25,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:25,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:25,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:25,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:25,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:25,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:31:25,680 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 12:31:25,681 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:31:25,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1741274030] [2020-07-07 12:31:25,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:31:25,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 12:31:25,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314647680] [2020-07-07 12:31:25,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 12:31:25,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:31:25,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 12:31:25,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-07 12:31:25,684 INFO L87 Difference]: Start difference. First operand 262 states and 284 transitions. Second operand 5 states. [2020-07-07 12:31:26,139 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:31:26,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:31:26,679 INFO L93 Difference]: Finished difference Result 361 states and 402 transitions. [2020-07-07 12:31:26,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-07 12:31:26,679 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 171 [2020-07-07 12:31:26,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:31:26,681 INFO L225 Difference]: With dead ends: 361 [2020-07-07 12:31:26,682 INFO L226 Difference]: Without dead ends: 269 [2020-07-07 12:31:26,683 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-07 12:31:26,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-07-07 12:31:26,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 248. [2020-07-07 12:31:26,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2020-07-07 12:31:26,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 263 transitions. [2020-07-07 12:31:26,748 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 263 transitions. Word has length 171 [2020-07-07 12:31:26,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:31:26,749 INFO L479 AbstractCegarLoop]: Abstraction has 248 states and 263 transitions. [2020-07-07 12:31:26,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 12:31:26,749 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 263 transitions. [2020-07-07 12:31:26,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-07-07 12:31:26,751 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:31:26,751 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] [2020-07-07 12:31:26,751 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 12:31:26,752 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:31:26,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:31:26,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1613053112, now seen corresponding path program 1 times [2020-07-07 12:31:26,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:31:26,753 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1102648835] [2020-07-07 12:31:26,753 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:31:26,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:31:26,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:31:27,055 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:31:27,056 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 12:31:27,056 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 12:31:27,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 12:31:27,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 12:31:27 BoogieIcfgContainer [2020-07-07 12:31:27,098 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 12:31:27,101 INFO L168 Benchmark]: Toolchain (without parser) took 15868.77 ms. Allocated memory was 145.2 MB in the beginning and 482.3 MB in the end (delta: 337.1 MB). Free memory was 103.4 MB in the beginning and 172.9 MB in the end (delta: -69.4 MB). Peak memory consumption was 267.7 MB. Max. memory is 7.1 GB. [2020-07-07 12:31:27,108 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 145.2 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-07 12:31:27,110 INFO L168 Benchmark]: CACSL2BoogieTranslator took 648.70 ms. Allocated memory was 145.2 MB in the beginning and 206.0 MB in the end (delta: 60.8 MB). Free memory was 103.2 MB in the beginning and 177.2 MB in the end (delta: -74.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2020-07-07 12:31:27,111 INFO L168 Benchmark]: Boogie Preprocessor took 116.71 ms. Allocated memory is still 206.0 MB. Free memory was 177.2 MB in the beginning and 172.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-07 12:31:27,112 INFO L168 Benchmark]: RCFGBuilder took 1137.09 ms. Allocated memory was 206.0 MB in the beginning and 235.9 MB in the end (delta: 29.9 MB). Free memory was 172.5 MB in the beginning and 184.1 MB in the end (delta: -11.7 MB). Peak memory consumption was 85.5 MB. Max. memory is 7.1 GB. [2020-07-07 12:31:27,113 INFO L168 Benchmark]: TraceAbstraction took 13961.03 ms. Allocated memory was 235.9 MB in the beginning and 482.3 MB in the end (delta: 246.4 MB). Free memory was 184.1 MB in the beginning and 172.9 MB in the end (delta: 11.2 MB). Peak memory consumption was 257.7 MB. Max. memory is 7.1 GB. [2020-07-07 12:31:27,127 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 145.2 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 648.70 ms. Allocated memory was 145.2 MB in the beginning and 206.0 MB in the end (delta: 60.8 MB). Free memory was 103.2 MB in the beginning and 177.2 MB in the end (delta: -74.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.71 ms. Allocated memory is still 206.0 MB. Free memory was 177.2 MB in the beginning and 172.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1137.09 ms. Allocated memory was 206.0 MB in the beginning and 235.9 MB in the end (delta: 29.9 MB). Free memory was 172.5 MB in the beginning and 184.1 MB in the end (delta: -11.7 MB). Peak memory consumption was 85.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13961.03 ms. Allocated memory was 235.9 MB in the beginning and 482.3 MB in the end (delta: 246.4 MB). Free memory was 184.1 MB in the beginning and 172.9 MB in the end (delta: 11.2 MB). Peak memory consumption was 257.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 302]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L48] int pumpRunning = 0; [L49] int systemActive = 1; [L307] int cleanupTimeShifts = 4; [L403] int waterLevel = 1; [L404] int methaneLevelCritical = 0; [L652] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L380] int retValue_acc ; [L381] int tmp ; [L385] FCALL select_helpers() [L386] FCALL select_features() [L387] CALL, EXPR valid_product() [L253] int retValue_acc ; [L256] retValue_acc = 1 [L257] return (retValue_acc); [L387] RET, EXPR valid_product() [L387] tmp = valid_product() [L389] COND TRUE \read(tmp) [L391] FCALL setup() [L392] CALL runTest() [L374] CALL test() [L160] int splverifierCounter ; [L161] int tmp ; [L162] int tmp___0 ; [L163] int tmp___1 ; [L164] int tmp___2 ; [L167] splverifierCounter = 0 [L169] COND TRUE 1 [L171] COND TRUE splverifierCounter < 4 [L177] tmp = __VERIFIER_nondet_int() [L179] COND TRUE \read(tmp) [L181] CALL waterRise() [L421] COND TRUE waterLevel < 2 [L422] waterLevel = waterLevel + 1 [L181] RET waterRise() [L187] tmp___0 = __VERIFIER_nondet_int() [L189] COND FALSE !(\read(tmp___0)) [L197] tmp___2 = __VERIFIER_nondet_int() [L199] COND TRUE \read(tmp___2) [L212] CALL timeShift() [L56] COND FALSE !(\read(pumpRunning)) [L63] COND TRUE \read(systemActive) [L65] FCALL processEnvironment() [L71] CALL __utac_acc__Specification3_spec__1() [L265] int tmp ; [L266] int tmp___0 ; [L267] int tmp___1 ; [L271] CALL, EXPR isMethaneLevelCritical() [L442] int retValue_acc ; [L445] retValue_acc = methaneLevelCritical [L446] return (retValue_acc); [L271] RET, EXPR isMethaneLevelCritical() [L271] tmp = isMethaneLevelCritical() [L273] COND FALSE !(\read(tmp)) [L277] CALL, EXPR getWaterLevel() [L474] int retValue_acc ; [L477] retValue_acc = waterLevel [L478] return (retValue_acc); [L277] RET, EXPR getWaterLevel() [L277] tmp___0 = getWaterLevel() [L279] COND TRUE tmp___0 == 2 [L281] CALL, EXPR isPumpRunning() [L111] int retValue_acc ; [L114] retValue_acc = pumpRunning [L115] return (retValue_acc); [L281] RET, EXPR isPumpRunning() [L281] tmp___1 = isPumpRunning() [L283] COND FALSE !(\read(tmp___1)) [L287] CALL __automaton_fail() [L302] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 34 procedures, 578 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 13.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 9.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 909 SDtfs, 958 SDslu, 1144 SDs, 0 SdLazy, 1888 SolverSat, 280 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=262occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 143 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...