/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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_product06.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 16:21:24,754 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 16:21:24,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 16:21:24,791 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 16:21:24,792 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 16:21:24,793 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 16:21:24,795 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 16:21:24,797 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 16:21:24,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 16:21:24,800 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 16:21:24,801 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 16:21:24,803 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 16:21:24,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 16:21:24,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 16:21:24,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 16:21:24,807 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 16:21:24,808 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 16:21:24,809 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 16:21:24,819 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 16:21:24,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 16:21:24,826 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 16:21:24,828 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 16:21:24,829 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 16:21:24,832 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 16:21:24,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 16:21:24,837 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 16:21:24,838 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 16:21:24,842 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 16:21:24,842 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 16:21:24,844 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 16:21:24,844 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 16:21:24,848 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 16:21:24,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 16:21:24,851 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 16:21:24,856 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 16:21:24,856 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 16:21:24,857 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 16:21:24,858 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 16:21:24,858 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 16:21:24,859 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 16:21:24,860 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 16:21:24,861 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 16:21:24,881 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 16:21:24,882 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 16:21:24,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 16:21:24,887 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 16:21:24,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 16:21:24,887 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 16:21:24,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 16:21:24,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 16:21:24,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 16:21:24,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 16:21:24,889 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 16:21:24,889 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 16:21:24,889 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 16:21:24,890 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 16:21:24,890 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 16:21:24,890 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 16:21:24,890 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 16:21:24,890 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 16:21:24,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 16:21:24,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 16:21:24,891 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 16:21:24,891 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 16:21:24,891 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 16:21:25,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 16:21:25,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 16:21:25,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 16:21:25,296 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 16:21:25,297 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 16:21:25,298 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c [2021-02-23 16:21:25,391 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/455d2c9fd/ee110b64c39440b986e1d0d665f29c71/FLAGb7aca4735 [2021-02-23 16:21:26,133 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 16:21:26,134 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c [2021-02-23 16:21:26,153 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/455d2c9fd/ee110b64c39440b986e1d0d665f29c71/FLAGb7aca4735 [2021-02-23 16:21:26,431 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/455d2c9fd/ee110b64c39440b986e1d0d665f29c71 [2021-02-23 16:21:26,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 16:21:26,450 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 16:21:26,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 16:21:26,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 16:21:26,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 16:21:26,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 04:21:26" (1/1) ... [2021-02-23 16:21:26,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@400880a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:21:26, skipping insertion in model container [2021-02-23 16:21:26,464 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 04:21:26" (1/1) ... [2021-02-23 16:21:26,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 16:21:26,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 16:21:26,730 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c[1281,1294] [2021-02-23 16:21:26,903 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 16:21:26,925 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 16:21:26,954 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c[1281,1294] [2021-02-23 16:21:27,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 16:21:27,110 INFO L208 MainTranslator]: Completed translation [2021-02-23 16:21:27,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:21:27 WrapperNode [2021-02-23 16:21:27,111 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 16:21:27,112 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 16:21:27,112 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 16:21:27,112 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 16:21:27,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:21:27" (1/1) ... [2021-02-23 16:21:27,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:21:27" (1/1) ... [2021-02-23 16:21:27,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:21:27" (1/1) ... [2021-02-23 16:21:27,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:21:27" (1/1) ... [2021-02-23 16:21:27,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:21:27" (1/1) ... [2021-02-23 16:21:27,201 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:21:27" (1/1) ... [2021-02-23 16:21:27,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:21:27" (1/1) ... [2021-02-23 16:21:27,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 16:21:27,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 16:21:27,227 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 16:21:27,227 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 16:21:27,228 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:21:27" (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 [2021-02-23 16:21:27,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 16:21:27,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 16:21:27,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-23 16:21:27,404 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 16:21:27,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-23 16:21:27,405 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-23 16:21:27,405 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-23 16:21:27,406 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-23 16:21:27,406 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-23 16:21:27,406 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-23 16:21:27,407 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-23 16:21:27,407 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-23 16:21:27,407 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-23 16:21:27,407 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-23 16:21:27,408 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-23 16:21:27,408 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-23 16:21:27,409 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-23 16:21:27,409 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-23 16:21:27,410 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-23 16:21:27,410 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-23 16:21:27,413 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-23 16:21:27,413 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-23 16:21:27,413 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-23 16:21:27,414 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-23 16:21:27,414 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-23 16:21:27,414 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-23 16:21:27,414 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-23 16:21:27,415 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-23 16:21:27,415 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-23 16:21:27,415 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 16:21:27,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-23 16:21:27,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-23 16:21:27,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-23 16:21:27,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-23 16:21:27,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-23 16:21:27,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-23 16:21:27,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-23 16:21:27,417 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 16:21:27,417 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 16:21:27,417 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 16:21:27,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 16:21:27,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 16:21:27,417 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-23 16:21:27,418 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-23 16:21:27,418 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-23 16:21:27,418 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-23 16:21:27,418 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-23 16:21:27,418 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-23 16:21:27,418 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-23 16:21:27,419 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-23 16:21:27,419 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-23 16:21:27,419 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-23 16:21:27,419 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-23 16:21:27,419 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-23 16:21:27,419 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-23 16:21:27,420 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-23 16:21:27,420 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-23 16:21:27,420 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-23 16:21:27,420 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-23 16:21:27,421 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-23 16:21:27,421 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-23 16:21:27,421 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-23 16:21:27,421 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-23 16:21:27,421 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-23 16:21:27,422 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-23 16:21:27,422 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-23 16:21:27,422 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-23 16:21:27,422 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-23 16:21:27,422 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-23 16:21:27,422 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 16:21:27,423 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 16:21:27,423 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 16:21:27,423 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-23 16:21:27,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 16:21:27,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 16:21:27,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 16:21:27,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 16:21:27,424 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-23 16:21:27,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 16:21:27,426 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-23 16:21:27,426 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-23 16:21:27,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 16:21:27,426 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-23 16:21:27,426 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-23 16:21:27,427 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-23 16:21:27,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 16:21:27,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 16:21:27,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 16:21:29,150 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 16:21:29,150 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-23 16:21:29,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 04:21:29 BoogieIcfgContainer [2021-02-23 16:21:29,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 16:21:29,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 16:21:29,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 16:21:29,159 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 16:21:29,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 04:21:26" (1/3) ... [2021-02-23 16:21:29,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b114933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 04:21:29, skipping insertion in model container [2021-02-23 16:21:29,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:21:27" (2/3) ... [2021-02-23 16:21:29,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b114933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 04:21:29, skipping insertion in model container [2021-02-23 16:21:29,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 04:21:29" (3/3) ... [2021-02-23 16:21:29,162 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product06.cil.c [2021-02-23 16:21:29,169 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 16:21:29,175 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 16:21:29,194 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 16:21:29,219 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 16:21:29,219 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 16:21:29,219 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 16:21:29,220 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 16:21:29,220 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 16:21:29,220 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 16:21:29,220 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 16:21:29,220 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 16:21:29,242 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states. [2021-02-23 16:21:29,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-23 16:21:29,263 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:21:29,264 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] [2021-02-23 16:21:29,264 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:21:29,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:21:29,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1003955035, now seen corresponding path program 1 times [2021-02-23 16:21:29,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:21:29,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [9773673] [2021-02-23 16:21:29,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:21:29,368 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:21:29,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:29,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:29,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:29,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:29,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:30,411 WARN L202 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 16:21:30,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:21:30,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:30,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:30,535 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:30,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 16:21:30,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:30,553 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:30,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:30,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 16:21:30,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:30,556 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:30,557 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:30,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 16:21:30,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:30,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:30,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:30,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 16:21:30,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:30,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:30,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:30,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-23 16:21:30,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:30,568 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:30,568 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:30,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-23 16:21:30,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:30,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:30,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:30,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 16:21:30,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:30,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:30,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:30,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:21:30,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [9773673] [2021-02-23 16:21:30,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:21:30,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 16:21:30,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952022505] [2021-02-23 16:21:30,629 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 16:21:30,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:21:30,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 16:21:30,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 16:21:30,647 INFO L87 Difference]: Start difference. First operand 285 states. Second operand 3 states. [2021-02-23 16:21:32,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:21:32,181 INFO L93 Difference]: Finished difference Result 428 states and 511 transitions. [2021-02-23 16:21:32,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 16:21:32,183 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2021-02-23 16:21:32,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:21:32,200 INFO L225 Difference]: With dead ends: 428 [2021-02-23 16:21:32,201 INFO L226 Difference]: Without dead ends: 273 [2021-02-23 16:21:32,206 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 16:21:32,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2021-02-23 16:21:32,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 233. [2021-02-23 16:21:32,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2021-02-23 16:21:32,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 251 transitions. [2021-02-23 16:21:32,350 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 251 transitions. Word has length 158 [2021-02-23 16:21:32,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:21:32,351 INFO L480 AbstractCegarLoop]: Abstraction has 233 states and 251 transitions. [2021-02-23 16:21:32,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 16:21:32,352 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 251 transitions. [2021-02-23 16:21:32,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-23 16:21:32,356 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:21:32,356 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] [2021-02-23 16:21:32,356 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 16:21:32,357 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:21:32,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:21:32,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1445699213, now seen corresponding path program 1 times [2021-02-23 16:21:32,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:21:32,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1610424772] [2021-02-23 16:21:32,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:21:32,363 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:21:32,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:32,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:32,451 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:32,452 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:32,453 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:21:32,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:32,457 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:32,774 WARN L202 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 16:21:32,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:21:32,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:32,818 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:32,818 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:32,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 16:21:32,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:32,826 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:32,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:32,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 16:21:32,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:32,829 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:32,830 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:32,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 16:21:32,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:32,833 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:32,833 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:32,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 16:21:32,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:32,836 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:32,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:32,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 16:21:32,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:32,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:32,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:32,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-23 16:21:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:32,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:32,843 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:32,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-23 16:21:32,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:32,846 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:32,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:32,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:21:32,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1610424772] [2021-02-23 16:21:32,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:21:32,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 16:21:32,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383375780] [2021-02-23 16:21:32,883 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 16:21:32,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:21:32,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 16:21:32,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 16:21:32,884 INFO L87 Difference]: Start difference. First operand 233 states and 251 transitions. Second operand 4 states. [2021-02-23 16:21:33,619 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 16:21:34,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:21:34,470 INFO L93 Difference]: Finished difference Result 340 states and 381 transitions. [2021-02-23 16:21:34,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 16:21:34,471 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-02-23 16:21:34,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:21:34,481 INFO L225 Difference]: With dead ends: 340 [2021-02-23 16:21:34,481 INFO L226 Difference]: Without dead ends: 256 [2021-02-23 16:21:34,483 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 16:21:34,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-02-23 16:21:34,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 223. [2021-02-23 16:21:34,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2021-02-23 16:21:34,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 238 transitions. [2021-02-23 16:21:34,601 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 238 transitions. Word has length 159 [2021-02-23 16:21:34,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:21:34,602 INFO L480 AbstractCegarLoop]: Abstraction has 223 states and 238 transitions. [2021-02-23 16:21:34,602 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 16:21:34,602 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 238 transitions. [2021-02-23 16:21:34,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-02-23 16:21:34,605 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:21:34,605 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 16:21:34,605 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 16:21:34,606 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:21:34,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:21:34,606 INFO L82 PathProgramCache]: Analyzing trace with hash -989437074, now seen corresponding path program 1 times [2021-02-23 16:21:34,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:21:34,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1871188807] [2021-02-23 16:21:34,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:21:34,611 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:21:34,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:34,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:34,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:34,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:34,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:21:34,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:34,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:21:34,745 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:34,746 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:34,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:34,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 16:21:34,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:34,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:35,064 WARN L202 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 16:21:35,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:21:35,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:35,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:35,099 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:35,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 16:21:35,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:35,107 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:35,107 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:35,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 16:21:35,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:35,109 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:35,110 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:35,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 16:21:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:35,116 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:35,117 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:35,125 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:35,126 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 16:21:35,138 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:35,139 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 16:21:35,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 16:21:35,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:35,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:35,156 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:35,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-23 16:21:35,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:35,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:35,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:21:35,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-23 16:21:35,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:35,187 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:35,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:35,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-02-23 16:21:35,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:35,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:35,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:35,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-02-23 16:21:35,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:35,215 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:35,216 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:35,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:21:35,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1871188807] [2021-02-23 16:21:35,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:21:35,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 16:21:35,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447448922] [2021-02-23 16:21:35,255 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 16:21:35,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:21:35,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 16:21:35,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-23 16:21:35,257 INFO L87 Difference]: Start difference. First operand 223 states and 238 transitions. Second operand 10 states. [2021-02-23 16:21:36,058 WARN L202 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 16:21:36,486 WARN L202 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 16:21:36,868 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-23 16:21:37,248 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:21:37,585 WARN L202 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:21:37,993 WARN L202 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:21:39,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:21:39,433 INFO L93 Difference]: Finished difference Result 386 states and 443 transitions. [2021-02-23 16:21:39,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-23 16:21:39,433 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2021-02-23 16:21:39,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:21:39,437 INFO L225 Difference]: With dead ends: 386 [2021-02-23 16:21:39,437 INFO L226 Difference]: Without dead ends: 278 [2021-02-23 16:21:39,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2021-02-23 16:21:39,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2021-02-23 16:21:39,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 223. [2021-02-23 16:21:39,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2021-02-23 16:21:39,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 237 transitions. [2021-02-23 16:21:39,546 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 237 transitions. Word has length 172 [2021-02-23 16:21:39,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:21:39,547 INFO L480 AbstractCegarLoop]: Abstraction has 223 states and 237 transitions. [2021-02-23 16:21:39,547 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 16:21:39,547 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 237 transitions. [2021-02-23 16:21:39,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-02-23 16:21:39,550 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:21:39,550 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 16:21:39,550 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 16:21:39,551 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:21:39,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:21:39,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1496509043, now seen corresponding path program 1 times [2021-02-23 16:21:39,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:21:39,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [722612017] [2021-02-23 16:21:39,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:21:39,555 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:21:39,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:39,628 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:39,629 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:21:39,632 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:39,633 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:21:39,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:39,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:21:39,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:39,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:21:39,635 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:39,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:21:39,636 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:39,637 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:21:39,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:39,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:21:39,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:39,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:39,965 WARN L202 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 16:21:39,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:21:39,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:40,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:40,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:40,013 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:40,014 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 16:21:40,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 16:21:40,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:40,023 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:40,023 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:40,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 16:21:40,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:40,026 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:40,026 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:40,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 16:21:40,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:40,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:40,030 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:40,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 16:21:40,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:40,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:40,033 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:40,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-23 16:21:40,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:40,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:40,045 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:40,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-23 16:21:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:40,058 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:40,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:40,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 16:21:40,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:40,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:40,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:40,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-02-23 16:21:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:40,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:40,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:40,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-02-23 16:21:40,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:40,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:40,071 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:40,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:40,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:21:40,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:40,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:21:40,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-02-23 16:21:40,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:40,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:40,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:40,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:21:40,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [722612017] [2021-02-23 16:21:40,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:21:40,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 16:21:40,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989540022] [2021-02-23 16:21:40,151 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 16:21:40,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:21:40,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 16:21:40,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-23 16:21:40,152 INFO L87 Difference]: Start difference. First operand 223 states and 237 transitions. Second operand 10 states. [2021-02-23 16:21:40,746 WARN L202 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 16:21:42,788 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:21:43,213 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:21:43,588 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:21:43,981 WARN L202 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:21:44,348 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:21:44,919 WARN L202 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 16:21:45,393 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:21:46,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:21:46,101 INFO L93 Difference]: Finished difference Result 597 states and 739 transitions. [2021-02-23 16:21:46,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-23 16:21:46,102 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 180 [2021-02-23 16:21:46,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:21:46,111 INFO L225 Difference]: With dead ends: 597 [2021-02-23 16:21:46,111 INFO L226 Difference]: Without dead ends: 489 [2021-02-23 16:21:46,113 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2021-02-23 16:21:46,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2021-02-23 16:21:46,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 323. [2021-02-23 16:21:46,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2021-02-23 16:21:46,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 354 transitions. [2021-02-23 16:21:46,259 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 354 transitions. Word has length 180 [2021-02-23 16:21:46,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:21:46,260 INFO L480 AbstractCegarLoop]: Abstraction has 323 states and 354 transitions. [2021-02-23 16:21:46,260 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 16:21:46,260 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 354 transitions. [2021-02-23 16:21:46,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-02-23 16:21:46,263 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:21:46,263 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 16:21:46,264 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 16:21:46,264 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:21:46,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:21:46,265 INFO L82 PathProgramCache]: Analyzing trace with hash 227586222, now seen corresponding path program 1 times [2021-02-23 16:21:46,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:21:46,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [68021394] [2021-02-23 16:21:46,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:21:46,268 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:21:46,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 16:21:46,347 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 16:21:46,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 16:21:46,419 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 16:21:46,625 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 16:21:46,625 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 16:21:46,626 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 16:21:46,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 04:21:46 BoogieIcfgContainer [2021-02-23 16:21:46,650 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 16:21:46,651 INFO L168 Benchmark]: Toolchain (without parser) took 20212.79 ms. Allocated memory was 151.0 MB in the beginning and 390.1 MB in the end (delta: 239.1 MB). Free memory was 125.8 MB in the beginning and 205.4 MB in the end (delta: -79.7 MB). Peak memory consumption was 160.4 MB. Max. memory is 8.0 GB. [2021-02-23 16:21:46,651 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 16:21:46,652 INFO L168 Benchmark]: CACSL2BoogieTranslator took 658.07 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 104.2 MB in the end (delta: 20.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-23 16:21:46,653 INFO L168 Benchmark]: Boogie Preprocessor took 113.55 ms. Allocated memory is still 151.0 MB. Free memory was 104.2 MB in the beginning and 100.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-23 16:21:46,653 INFO L168 Benchmark]: RCFGBuilder took 1926.97 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 100.4 MB in the beginning and 122.2 MB in the end (delta: -21.8 MB). Peak memory consumption was 25.0 MB. Max. memory is 8.0 GB. [2021-02-23 16:21:46,654 INFO L168 Benchmark]: TraceAbstraction took 17495.04 ms. Allocated memory was 187.7 MB in the beginning and 390.1 MB in the end (delta: 202.4 MB). Free memory was 121.7 MB in the beginning and 205.4 MB in the end (delta: -83.8 MB). Peak memory consumption was 118.6 MB. Max. memory is 8.0 GB. [2021-02-23 16:21:46,656 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 658.07 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 104.2 MB in the end (delta: 20.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 113.55 ms. Allocated memory is still 151.0 MB. Free memory was 104.2 MB in the beginning and 100.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1926.97 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 100.4 MB in the beginning and 122.2 MB in the end (delta: -21.8 MB). Peak memory consumption was 25.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 17495.04 ms. Allocated memory was 187.7 MB in the beginning and 390.1 MB in the end (delta: 202.4 MB). Free memory was 121.7 MB in the beginning and 205.4 MB in the end (delta: -83.8 MB). Peak memory consumption was 118.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 46]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L98] int pumpRunning = 0; [L99] int systemActive = 1; [L311] int waterLevel = 1; [L312] int methaneLevelCritical = 0; [L391] int cleanupTimeShifts = 4; [L656] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L464] int retValue_acc ; [L465] int tmp ; [L469] FCALL select_helpers() [L470] FCALL select_features() [L471] CALL, EXPR valid_product() [L80] int retValue_acc ; [L83] retValue_acc = 1 [L84] return (retValue_acc); [L471] RET, EXPR valid_product() [L471] tmp = valid_product() [L473] COND TRUE \read(tmp) [L475] FCALL setup() [L476] CALL runTest() [L458] CALL test() [L244] int splverifierCounter ; [L245] int tmp ; [L246] int tmp___0 ; [L247] int tmp___1 ; [L248] int tmp___2 ; [L251] splverifierCounter = 0 [L253] COND TRUE 1 [L255] COND TRUE splverifierCounter < 4 [L261] tmp = __VERIFIER_nondet_int() [L263] COND TRUE \read(tmp) [L265] CALL waterRise() [L329] COND TRUE waterLevel < 2 [L330] waterLevel = waterLevel + 1 [L265] RET waterRise() [L271] tmp___0 = __VERIFIER_nondet_int() [L273] COND FALSE !(\read(tmp___0)) [L281] tmp___2 = __VERIFIER_nondet_int() [L283] COND TRUE \read(tmp___2) [L285] CALL startSystem() [L235] systemActive = 1 [L285] RET startSystem() [L298] CALL timeShift() [L106] COND FALSE !(\read(pumpRunning)) [L113] COND TRUE \read(systemActive) [L115] CALL processEnvironment() [L135] int tmp ; [L138] COND FALSE !(\read(pumpRunning)) [L153] FCALL processEnvironment__wrappee__base() [L115] RET processEnvironment() [L121] CALL __utac_acc__Specification3_spec__1() [L854] int tmp ; [L855] int tmp___0 ; [L856] int tmp___1 ; [L860] CALL, EXPR isMethaneLevelCritical() [L350] int retValue_acc ; [L353] retValue_acc = methaneLevelCritical [L354] return (retValue_acc); [L860] RET, EXPR isMethaneLevelCritical() [L860] tmp = isMethaneLevelCritical() [L862] COND FALSE !(\read(tmp)) [L866] CALL, EXPR getWaterLevel() [L382] int retValue_acc ; [L385] retValue_acc = waterLevel [L386] return (retValue_acc); [L866] RET, EXPR getWaterLevel() [L866] tmp___0 = getWaterLevel() [L868] COND TRUE tmp___0 == 2 [L870] CALL, EXPR isPumpRunning() [L187] int retValue_acc ; [L190] retValue_acc = pumpRunning [L191] return (retValue_acc); [L870] RET, EXPR isPumpRunning() [L870] tmp___1 = isPumpRunning() [L872] COND FALSE !(\read(tmp___1)) [L876] CALL __automaton_fail() [L46] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 603 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 13.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 858 SDtfs, 1365 SDslu, 1283 SDs, 0 SdLazy, 2412 SolverSat, 456 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=323occurred 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, 4 MinimizatonAttempts, 294 StatesRemovedByMinimization, 4 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...