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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product06.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:08:06,179 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:08:06,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:08:06,192 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:08:06,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:08:06,194 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:08:06,196 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:08:06,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:08:06,201 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:08:06,203 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:08:06,204 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:08:06,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:08:06,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:08:06,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:08:06,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:08:06,216 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:08:06,216 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:08:06,219 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:08:06,221 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:08:06,225 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:08:06,227 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:08:06,228 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:08:06,232 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:08:06,232 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:08:06,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:08:06,238 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:08:06,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:08:06,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:08:06,239 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:08:06,240 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:08:06,240 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:08:06,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:08:06,242 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:08:06,243 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:08:06,243 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:08:06,244 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:08:06,244 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:08:06,245 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:08:06,245 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:08:06,246 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:08:06,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:08:06,247 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-16 17:08:06,262 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:08:06,264 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:08:06,264 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:08:06,265 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:08:06,266 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:08:06,266 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:08:06,266 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:08:06,267 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:08:06,267 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:08:06,267 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:08:06,268 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:08:06,268 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:08:06,268 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:08:06,269 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:08:06,269 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:08:06,269 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:08:06,269 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:08:06,269 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:08:06,270 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:08:06,270 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:08:06,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:08:06,271 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:08:06,271 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:08:06,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:08:06,272 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:08:06,272 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:08:06,272 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:08:06,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:08:06,273 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:08:06,273 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:08:06,326 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:08:06,338 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:08:06,341 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:08:06,343 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:08:06,343 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:08:06,344 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product06.cil.c [2019-09-16 17:08:06,401 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90a99e6d0/a0ee36758fdb42b283004ea1db0db71a/FLAG4521d2be9 [2019-09-16 17:08:06,871 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:08:06,872 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product06.cil.c [2019-09-16 17:08:06,884 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90a99e6d0/a0ee36758fdb42b283004ea1db0db71a/FLAG4521d2be9 [2019-09-16 17:08:07,157 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90a99e6d0/a0ee36758fdb42b283004ea1db0db71a [2019-09-16 17:08:07,166 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:08:07,168 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:08:07,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:08:07,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:08:07,172 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:08:07,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:08:07" (1/1) ... [2019-09-16 17:08:07,176 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@356071d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:07, skipping insertion in model container [2019-09-16 17:08:07,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:08:07" (1/1) ... [2019-09-16 17:08:07,184 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:08:07,235 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:08:07,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:08:07,733 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:08:07,847 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:08:07,877 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:08:07,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:07 WrapperNode [2019-09-16 17:08:07,878 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:08:07,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:08:07,879 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:08:07,879 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:08:07,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:07" (1/1) ... [2019-09-16 17:08:07,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:07" (1/1) ... [2019-09-16 17:08:07,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:07" (1/1) ... [2019-09-16 17:08:07,906 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:07" (1/1) ... [2019-09-16 17:08:07,945 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:07" (1/1) ... [2019-09-16 17:08:07,954 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:07" (1/1) ... [2019-09-16 17:08:07,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:07" (1/1) ... [2019-09-16 17:08:07,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:08:07,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:08:07,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:08:07,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:08:07,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:08:08,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:08:08,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:08:08,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:08:08,041 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:08:08,041 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:08:08,041 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:08:08,042 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:08:08,042 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:08:08,042 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:08:08,042 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-16 17:08:08,042 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:08:08,043 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:08:08,043 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:08:08,044 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:08:08,044 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:08:08,045 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:08:08,045 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-16 17:08:08,045 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:08:08,046 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:08:08,046 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:08:08,046 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:08:08,046 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:08:08,046 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:08:08,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-16 17:08:08,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-16 17:08:08,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:08:08,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:08:08,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:08:08,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:08:08,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:08:08,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:08:08,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:08:08,048 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:08:08,049 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:08:08,049 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:08:08,049 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:08:08,049 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:08:08,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:08:08,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:08:08,049 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:08:08,050 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:08:08,050 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:08:08,050 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:08:08,050 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:08:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:08:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:08:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-16 17:08:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:08:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:08:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:08:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:08:08,052 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:08:08,052 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:08:08,052 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:08:08,052 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:08:08,052 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:08:08,052 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:08:08,053 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-16 17:08:08,053 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:08:08,053 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-16 17:08:08,053 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:08:08,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:08:08,053 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:08:08,053 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:08:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-16 17:08:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:08:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:08:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:08:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:08:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:08:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:08:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:08:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:08:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:08:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:08:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:08:08,057 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:08:08,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:08:08,057 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:08:08,058 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:08:08,058 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:08:08,058 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:08:08,058 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:08:08,058 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:08:08,058 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:08:08,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:08:08,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:08:08,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:08:09,095 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:08:09,095 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:08:09,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:08:09 BoogieIcfgContainer [2019-09-16 17:08:09,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:08:09,099 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:08:09,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:08:09,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:08:09,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:08:07" (1/3) ... [2019-09-16 17:08:09,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49ff06eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:08:09, skipping insertion in model container [2019-09-16 17:08:09,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:07" (2/3) ... [2019-09-16 17:08:09,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49ff06eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:08:09, skipping insertion in model container [2019-09-16 17:08:09,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:08:09" (3/3) ... [2019-09-16 17:08:09,106 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product06.cil.c [2019-09-16 17:08:09,116 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:08:09,145 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:08:09,162 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:08:09,186 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:08:09,186 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:08:09,186 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:08:09,186 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:08:09,186 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:08:09,187 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:08:09,187 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:08:09,187 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:08:09,206 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states. [2019-09-16 17:08:09,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-16 17:08:09,219 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:09,220 INFO L407 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] [2019-09-16 17:08:09,222 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:09,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:09,228 INFO L82 PathProgramCache]: Analyzing trace with hash -790254398, now seen corresponding path program 1 times [2019-09-16 17:08:09,230 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:09,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:09,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:09,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:09,286 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:09,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:09,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:09,589 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:09,589 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:08:09,590 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:09,595 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:08:09,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:08:09,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:09,611 INFO L87 Difference]: Start difference. First operand 151 states. Second operand 2 states. [2019-09-16 17:08:09,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:09,644 INFO L93 Difference]: Finished difference Result 119 states and 138 transitions. [2019-09-16 17:08:09,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:08:09,646 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-16 17:08:09,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:09,662 INFO L225 Difference]: With dead ends: 119 [2019-09-16 17:08:09,665 INFO L226 Difference]: Without dead ends: 108 [2019-09-16 17:08:09,671 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:09,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2019-09-16 17:08:09,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2019-09-16 17:08:09,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-09-16 17:08:09,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 126 transitions. [2019-09-16 17:08:09,727 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 126 transitions. Word has length 51 [2019-09-16 17:08:09,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:09,728 INFO L475 AbstractCegarLoop]: Abstraction has 108 states and 126 transitions. [2019-09-16 17:08:09,728 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:08:09,728 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 126 transitions. [2019-09-16 17:08:09,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-16 17:08:09,731 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:09,731 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:09,732 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:09,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:09,732 INFO L82 PathProgramCache]: Analyzing trace with hash 449036907, now seen corresponding path program 1 times [2019-09-16 17:08:09,732 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:09,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:09,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:09,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:09,735 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:09,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:09,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:09,864 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:09,864 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:08:09,864 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:09,866 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:08:09,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:08:09,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:08:09,867 INFO L87 Difference]: Start difference. First operand 108 states and 126 transitions. Second operand 3 states. [2019-09-16 17:08:09,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:09,880 INFO L93 Difference]: Finished difference Result 99 states and 114 transitions. [2019-09-16 17:08:09,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:08:09,881 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-16 17:08:09,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:09,883 INFO L225 Difference]: With dead ends: 99 [2019-09-16 17:08:09,883 INFO L226 Difference]: Without dead ends: 99 [2019-09-16 17:08:09,884 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:08:09,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-09-16 17:08:09,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2019-09-16 17:08:09,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-09-16 17:08:09,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 114 transitions. [2019-09-16 17:08:09,894 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 114 transitions. Word has length 52 [2019-09-16 17:08:09,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:09,895 INFO L475 AbstractCegarLoop]: Abstraction has 99 states and 114 transitions. [2019-09-16 17:08:09,895 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:08:09,895 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 114 transitions. [2019-09-16 17:08:09,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-16 17:08:09,899 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:09,899 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:09,899 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:09,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:09,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1483063984, now seen corresponding path program 1 times [2019-09-16 17:08:09,900 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:09,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:09,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:09,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:09,903 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:09,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:10,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:10,030 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:10,031 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:08:10,031 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:10,031 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:08:10,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:08:10,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:10,032 INFO L87 Difference]: Start difference. First operand 99 states and 114 transitions. Second operand 7 states. [2019-09-16 17:08:10,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:10,326 INFO L93 Difference]: Finished difference Result 99 states and 113 transitions. [2019-09-16 17:08:10,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:08:10,326 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-09-16 17:08:10,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:10,328 INFO L225 Difference]: With dead ends: 99 [2019-09-16 17:08:10,328 INFO L226 Difference]: Without dead ends: 99 [2019-09-16 17:08:10,329 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-16 17:08:10,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-09-16 17:08:10,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2019-09-16 17:08:10,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-09-16 17:08:10,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 113 transitions. [2019-09-16 17:08:10,342 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 113 transitions. Word has length 57 [2019-09-16 17:08:10,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:10,343 INFO L475 AbstractCegarLoop]: Abstraction has 99 states and 113 transitions. [2019-09-16 17:08:10,343 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:08:10,343 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 113 transitions. [2019-09-16 17:08:10,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-16 17:08:10,347 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:10,348 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:10,348 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:10,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:10,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1934591269, now seen corresponding path program 1 times [2019-09-16 17:08:10,349 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:10,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:10,356 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:10,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:10,358 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:10,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:10,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:10,495 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:10,495 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:08:10,495 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:10,496 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:08:10,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:08:10,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:08:10,497 INFO L87 Difference]: Start difference. First operand 99 states and 113 transitions. Second operand 6 states. [2019-09-16 17:08:10,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:10,730 INFO L93 Difference]: Finished difference Result 162 states and 188 transitions. [2019-09-16 17:08:10,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:08:10,731 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2019-09-16 17:08:10,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:10,734 INFO L225 Difference]: With dead ends: 162 [2019-09-16 17:08:10,734 INFO L226 Difference]: Without dead ends: 162 [2019-09-16 17:08:10,735 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-16 17:08:10,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2019-09-16 17:08:10,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 160. [2019-09-16 17:08:10,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-09-16 17:08:10,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 186 transitions. [2019-09-16 17:08:10,753 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 186 transitions. Word has length 65 [2019-09-16 17:08:10,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:10,754 INFO L475 AbstractCegarLoop]: Abstraction has 160 states and 186 transitions. [2019-09-16 17:08:10,754 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:08:10,754 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 186 transitions. [2019-09-16 17:08:10,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-16 17:08:10,759 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:10,759 INFO L407 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] [2019-09-16 17:08:10,760 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:10,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:10,762 INFO L82 PathProgramCache]: Analyzing trace with hash 419141833, now seen corresponding path program 1 times [2019-09-16 17:08:10,763 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:10,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:10,766 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:10,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:10,766 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:10,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:10,912 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:10,912 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:08:10,913 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:10,913 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:08:10,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:08:10,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:10,914 INFO L87 Difference]: Start difference. First operand 160 states and 186 transitions. Second operand 7 states. [2019-09-16 17:08:11,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:11,219 INFO L93 Difference]: Finished difference Result 124 states and 137 transitions. [2019-09-16 17:08:11,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:08:11,219 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2019-09-16 17:08:11,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:11,220 INFO L225 Difference]: With dead ends: 124 [2019-09-16 17:08:11,220 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:08:11,221 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-09-16 17:08:11,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:08:11,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:08:11,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:08:11,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:08:11,221 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2019-09-16 17:08:11,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:11,222 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:08:11,222 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:08:11,222 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:08:11,222 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:08:11,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:08:11 BoogieIcfgContainer [2019-09-16 17:08:11,227 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:08:11,230 INFO L168 Benchmark]: Toolchain (without parser) took 4061.15 ms. Allocated memory was 140.0 MB in the beginning and 261.1 MB in the end (delta: 121.1 MB). Free memory was 86.7 MB in the beginning and 153.4 MB in the end (delta: -66.7 MB). Peak memory consumption was 54.4 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:11,231 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 106.1 MB in the beginning and 105.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:08:11,232 INFO L168 Benchmark]: CACSL2BoogieTranslator took 709.39 ms. Allocated memory was 140.0 MB in the beginning and 198.7 MB in the end (delta: 58.7 MB). Free memory was 86.2 MB in the beginning and 165.5 MB in the end (delta: -79.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:11,233 INFO L168 Benchmark]: Boogie Preprocessor took 89.61 ms. Allocated memory is still 198.7 MB. Free memory was 164.9 MB in the beginning and 161.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:11,234 INFO L168 Benchmark]: RCFGBuilder took 1128.97 ms. Allocated memory is still 198.7 MB. Free memory was 161.2 MB in the beginning and 79.8 MB in the end (delta: 81.4 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:11,234 INFO L168 Benchmark]: TraceAbstraction took 2128.58 ms. Allocated memory was 198.7 MB in the beginning and 261.1 MB in the end (delta: 62.4 MB). Free memory was 79.2 MB in the beginning and 153.4 MB in the end (delta: -74.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-16 17:08:11,238 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 106.1 MB in the beginning and 105.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 709.39 ms. Allocated memory was 140.0 MB in the beginning and 198.7 MB in the end (delta: 58.7 MB). Free memory was 86.2 MB in the beginning and 165.5 MB in the end (delta: -79.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.61 ms. Allocated memory is still 198.7 MB. Free memory was 164.9 MB in the beginning and 161.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1128.97 ms. Allocated memory is still 198.7 MB. Free memory was 161.2 MB in the beginning and 79.8 MB in the end (delta: 81.4 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2128.58 ms. Allocated memory was 198.7 MB in the beginning and 261.1 MB in the end (delta: 62.4 MB). Free memory was 79.2 MB in the beginning and 153.4 MB in the end (delta: -74.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 790]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 213 locations, 1 error locations. SAFE Result, 2.0s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 550 SDtfs, 261 SDslu, 845 SDs, 0 SdLazy, 337 SolverSat, 66 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=160occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 294 NumberOfCodeBlocks, 294 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 289 ConstructedInterpolants, 0 QuantifiedInterpolants, 31449 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...