/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 12:57:39,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 12:57:39,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 12:57:39,099 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 12:57:39,100 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 12:57:39,101 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 12:57:39,103 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 12:57:39,106 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 12:57:39,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 12:57:39,109 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 12:57:39,110 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 12:57:39,111 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 12:57:39,112 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 12:57:39,113 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 12:57:39,114 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 12:57:39,116 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 12:57:39,117 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 12:57:39,128 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 12:57:39,133 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 12:57:39,137 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 12:57:39,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 12:57:39,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 12:57:39,142 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 12:57:39,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 12:57:39,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 12:57:39,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 12:57:39,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 12:57:39,148 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 12:57:39,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 12:57:39,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 12:57:39,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 12:57:39,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 12:57:39,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 12:57:39,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 12:57:39,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 12:57:39,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 12:57:39,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 12:57:39,156 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 12:57:39,156 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 12:57:39,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 12:57:39,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 12:57:39,159 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-23 12:57:39,190 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 12:57:39,191 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 12:57:39,194 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-23 12:57:39,194 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-23 12:57:39,195 INFO L138 SettingsManager]: * Use SBE=true [2021-02-23 12:57:39,195 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 12:57:39,196 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 12:57:39,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 12:57:39,197 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 12:57:39,197 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 12:57:39,198 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 12:57:39,198 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 12:57:39,199 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 12:57:39,199 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 12:57:39,199 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 12:57:39,199 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 12:57:39,199 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 12:57:39,200 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 12:57:39,200 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-23 12:57:39,200 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 12:57:39,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 12:57:39,201 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 12:57:39,201 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-23 12:57:39,201 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-23 12:57:39,202 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-23 12:57:39,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-23 12:57:39,202 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 12:57:39,202 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-23 12:57:39,202 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 12:57:39,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 12:57:39,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 12:57:39,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 12:57:39,613 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 12:57:39,614 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 12:57:39,615 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product29.cil.c [2021-02-23 12:57:39,700 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/298208c4a/cfe733a6bf6b488b892e8b5d06cdfb72/FLAG79b2e981d [2021-02-23 12:57:40,397 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 12:57:40,398 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product29.cil.c [2021-02-23 12:57:40,425 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/298208c4a/cfe733a6bf6b488b892e8b5d06cdfb72/FLAG79b2e981d [2021-02-23 12:57:40,613 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/298208c4a/cfe733a6bf6b488b892e8b5d06cdfb72 [2021-02-23 12:57:40,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 12:57:40,633 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 12:57:40,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 12:57:40,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 12:57:40,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 12:57:40,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 12:57:40" (1/1) ... [2021-02-23 12:57:40,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6497e18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:57:40, skipping insertion in model container [2021-02-23 12:57:40,644 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 12:57:40" (1/1) ... [2021-02-23 12:57:40,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 12:57:40,699 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 12:57:40,961 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_product29.cil.c[13408,13421] [2021-02-23 12:57:40,996 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 12:57:41,011 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 12:57:41,090 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_product29.cil.c[13408,13421] [2021-02-23 12:57:41,132 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 12:57:41,182 INFO L208 MainTranslator]: Completed translation [2021-02-23 12:57:41,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:57:41 WrapperNode [2021-02-23 12:57:41,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 12:57:41,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 12:57:41,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 12:57:41,186 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 12:57:41,201 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:57:41" (1/1) ... [2021-02-23 12:57:41,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:57:41" (1/1) ... [2021-02-23 12:57:41,222 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:57:41" (1/1) ... [2021-02-23 12:57:41,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:57:41" (1/1) ... [2021-02-23 12:57:41,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:57:41" (1/1) ... [2021-02-23 12:57:41,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:57:41" (1/1) ... [2021-02-23 12:57:41,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:57:41" (1/1) ... [2021-02-23 12:57:41,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 12:57:41,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 12:57:41,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 12:57:41,347 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 12:57:41,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:57:41" (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 12:57:41,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 12:57:41,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 12:57:41,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-23 12:57:41,455 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 12:57:41,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-23 12:57:41,455 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-23 12:57:41,455 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-23 12:57:41,455 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-23 12:57:41,455 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-23 12:57:41,456 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-23 12:57:41,456 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-23 12:57:41,456 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2021-02-23 12:57:41,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-23 12:57:41,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-23 12:57:41,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-23 12:57:41,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-23 12:57:41,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-23 12:57:41,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-23 12:57:41,457 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-23 12:57:41,457 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-23 12:57:41,457 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-23 12:57:41,458 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-23 12:57:41,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-23 12:57:41,458 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-23 12:57:41,458 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-23 12:57:41,458 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-23 12:57:41,458 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-23 12:57:41,459 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 12:57:41,459 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-23 12:57:41,459 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-23 12:57:41,459 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-02-23 12:57:41,459 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-23 12:57:41,459 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2021-02-23 12:57:41,459 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-23 12:57:41,460 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-23 12:57:41,460 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-23 12:57:41,460 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-23 12:57:41,460 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-23 12:57:41,460 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2021-02-23 12:57:41,460 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-23 12:57:41,461 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 12:57:41,461 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 12:57:41,461 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 12:57:41,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 12:57:41,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 12:57:41,461 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-23 12:57:41,461 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-23 12:57:41,462 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-23 12:57:41,462 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-23 12:57:41,462 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-23 12:57:41,462 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-23 12:57:41,462 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-23 12:57:41,462 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-23 12:57:41,462 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-23 12:57:41,463 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-23 12:57:41,463 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2021-02-23 12:57:41,463 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 12:57:41,463 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 12:57:41,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-23 12:57:41,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 12:57:41,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 12:57:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 12:57:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 12:57:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-23 12:57:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 12:57:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-23 12:57:41,464 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-23 12:57:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 12:57:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-23 12:57:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-23 12:57:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-23 12:57:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-23 12:57:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-23 12:57:41,465 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-23 12:57:41,466 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-23 12:57:41,466 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-23 12:57:41,466 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-23 12:57:41,466 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-23 12:57:41,466 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-23 12:57:41,466 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-23 12:57:41,467 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-23 12:57:41,467 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-23 12:57:41,467 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 12:57:41,467 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-23 12:57:41,467 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-23 12:57:41,467 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-23 12:57:41,468 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-23 12:57:41,468 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2021-02-23 12:57:41,468 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-02-23 12:57:41,468 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-23 12:57:41,468 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2021-02-23 12:57:41,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 12:57:41,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 12:57:41,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 12:57:42,684 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 12:57:42,685 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-23 12:57:42,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 12:57:42 BoogieIcfgContainer [2021-02-23 12:57:42,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 12:57:42,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 12:57:42,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 12:57:42,698 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 12:57:42,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 12:57:40" (1/3) ... [2021-02-23 12:57:42,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eec6003 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 12:57:42, skipping insertion in model container [2021-02-23 12:57:42,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:57:41" (2/3) ... [2021-02-23 12:57:42,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eec6003 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 12:57:42, skipping insertion in model container [2021-02-23 12:57:42,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 12:57:42" (3/3) ... [2021-02-23 12:57:42,703 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product29.cil.c [2021-02-23 12:57:42,714 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-23 12:57:42,721 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 12:57:42,741 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 12:57:42,783 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 12:57:42,784 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 12:57:42,784 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-23 12:57:42,784 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 12:57:42,784 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 12:57:42,784 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 12:57:42,785 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 12:57:42,785 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 12:57:42,806 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states. [2021-02-23 12:57:42,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-02-23 12:57:42,817 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 12:57:42,818 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] [2021-02-23 12:57:42,818 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 12:57:42,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 12:57:42,825 INFO L82 PathProgramCache]: Analyzing trace with hash 1155824001, now seen corresponding path program 1 times [2021-02-23 12:57:42,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 12:57:42,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239026004] [2021-02-23 12:57:42,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 12:57:43,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:43,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:43,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:43,215 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:43,215 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:43,570 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 12:57:43,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 12:57:43,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:43,620 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:43,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:43,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 12:57:43,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:43,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:43,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:43,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-23 12:57:43,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:43,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:43,631 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:43,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 12:57:43,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:43,636 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:43,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:43,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 12:57:43,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:43,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:43,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:43,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-23 12:57:43,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:43,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:43,646 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:43,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 12:57:43,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:43,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:43,652 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:43,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-23 12:57:43,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:43,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:43,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:43,679 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 12:57:43,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239026004] [2021-02-23 12:57:43,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 12:57:43,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 12:57:43,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640042133] [2021-02-23 12:57:43,689 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 12:57:43,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 12:57:43,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 12:57:43,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 12:57:43,709 INFO L87 Difference]: Start difference. First operand 176 states. Second operand 3 states. [2021-02-23 12:57:45,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 12:57:45,053 INFO L93 Difference]: Finished difference Result 291 states and 384 transitions. [2021-02-23 12:57:45,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 12:57:45,056 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2021-02-23 12:57:45,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 12:57:45,070 INFO L225 Difference]: With dead ends: 291 [2021-02-23 12:57:45,070 INFO L226 Difference]: Without dead ends: 157 [2021-02-23 12:57:45,075 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 12:57:45,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-02-23 12:57:45,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 125. [2021-02-23 12:57:45,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2021-02-23 12:57:45,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 148 transitions. [2021-02-23 12:57:45,171 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 148 transitions. Word has length 52 [2021-02-23 12:57:45,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 12:57:45,172 INFO L480 AbstractCegarLoop]: Abstraction has 125 states and 148 transitions. [2021-02-23 12:57:45,172 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 12:57:45,172 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 148 transitions. [2021-02-23 12:57:45,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-02-23 12:57:45,176 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 12:57:45,176 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] [2021-02-23 12:57:45,177 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 12:57:45,177 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 12:57:45,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 12:57:45,178 INFO L82 PathProgramCache]: Analyzing trace with hash 840618472, now seen corresponding path program 1 times [2021-02-23 12:57:45,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 12:57:45,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729372673] [2021-02-23 12:57:45,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 12:57:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:45,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:45,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:45,314 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:45,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:45,321 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:45,322 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:45,669 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 12:57:45,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 12:57:45,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:45,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:45,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:45,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 12:57:45,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:45,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:45,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:45,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-23 12:57:45,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:45,714 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:45,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:45,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 12:57:45,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:45,720 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:45,721 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:45,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 12:57:45,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:45,727 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:45,727 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:45,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-23 12:57:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:45,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:45,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:45,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-02-23 12:57:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:45,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:45,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:45,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-23 12:57:45,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:45,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:45,756 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:45,767 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 12:57:45,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729372673] [2021-02-23 12:57:45,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 12:57:45,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 12:57:45,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815027858] [2021-02-23 12:57:45,771 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 12:57:45,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 12:57:45,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 12:57:45,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 12:57:45,772 INFO L87 Difference]: Start difference. First operand 125 states and 148 transitions. Second operand 4 states. [2021-02-23 12:57:46,352 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 12:57:47,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 12:57:47,331 INFO L93 Difference]: Finished difference Result 224 states and 275 transitions. [2021-02-23 12:57:47,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 12:57:47,332 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2021-02-23 12:57:47,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 12:57:47,334 INFO L225 Difference]: With dead ends: 224 [2021-02-23 12:57:47,335 INFO L226 Difference]: Without dead ends: 141 [2021-02-23 12:57:47,337 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 12:57:47,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-02-23 12:57:47,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 116. [2021-02-23 12:57:47,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2021-02-23 12:57:47,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 136 transitions. [2021-02-23 12:57:47,387 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 136 transitions. Word has length 53 [2021-02-23 12:57:47,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 12:57:47,387 INFO L480 AbstractCegarLoop]: Abstraction has 116 states and 136 transitions. [2021-02-23 12:57:47,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 12:57:47,388 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 136 transitions. [2021-02-23 12:57:47,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-02-23 12:57:47,390 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 12:57:47,390 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] [2021-02-23 12:57:47,391 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 12:57:47,391 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 12:57:47,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 12:57:47,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1426834155, now seen corresponding path program 1 times [2021-02-23 12:57:47,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 12:57:47,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26865929] [2021-02-23 12:57:47,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 12:57:47,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:47,504 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:47,505 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:47,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:47,510 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:47,514 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:47,515 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:47,520 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:47,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 12:57:47,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:47,529 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:47,881 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 12:57:47,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 12:57:47,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:47,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:47,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 12:57:47,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 12:57:47,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:47,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:47,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:47,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-23 12:57:47,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:47,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:47,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:47,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 12:57:47,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:47,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:47,960 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:47,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 12:57:47,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:47,975 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:47,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:47,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-23 12:57:47,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:47,978 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:47,979 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:47,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-02-23 12:57:47,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:47,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:47,982 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:47,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-02-23 12:57:47,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:47,985 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:47,986 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:48,001 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 12:57:48,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26865929] [2021-02-23 12:57:48,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 12:57:48,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 12:57:48,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618393606] [2021-02-23 12:57:48,003 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 12:57:48,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 12:57:48,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 12:57:48,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-23 12:57:48,004 INFO L87 Difference]: Start difference. First operand 116 states and 136 transitions. Second operand 8 states. [2021-02-23 12:57:48,504 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 12:57:48,982 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:57:49,396 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:57:49,803 WARN L202 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:57:51,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 12:57:51,220 INFO L93 Difference]: Finished difference Result 233 states and 289 transitions. [2021-02-23 12:57:51,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-23 12:57:51,221 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2021-02-23 12:57:51,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 12:57:51,225 INFO L225 Difference]: With dead ends: 233 [2021-02-23 12:57:51,225 INFO L226 Difference]: Without dead ends: 141 [2021-02-23 12:57:51,227 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-02-23 12:57:51,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-02-23 12:57:51,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 116. [2021-02-23 12:57:51,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2021-02-23 12:57:51,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 135 transitions. [2021-02-23 12:57:51,273 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 135 transitions. Word has length 57 [2021-02-23 12:57:51,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 12:57:51,274 INFO L480 AbstractCegarLoop]: Abstraction has 116 states and 135 transitions. [2021-02-23 12:57:51,274 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 12:57:51,274 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 135 transitions. [2021-02-23 12:57:51,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-02-23 12:57:51,277 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 12:57:51,277 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] [2021-02-23 12:57:51,277 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 12:57:51,277 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 12:57:51,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 12:57:51,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1129550317, now seen corresponding path program 1 times [2021-02-23 12:57:51,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 12:57:51,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250758537] [2021-02-23 12:57:51,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 12:57:51,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:51,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:51,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:51,398 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:51,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:51,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:51,399 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:51,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:51,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:51,401 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:51,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:51,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:51,404 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:51,409 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:51,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:51,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:51,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:51,807 WARN L202 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 12:57:51,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 12:57:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:51,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:51,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 12:57:51,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 12:57:51,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:51,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:51,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:51,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-23 12:57:51,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:51,848 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:51,849 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:51,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 12:57:51,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:51,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:51,852 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:51,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 12:57:51,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:51,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:51,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:51,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-23 12:57:51,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:51,870 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:51,870 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:51,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 12:57:51,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:51,873 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:51,874 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:51,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 12:57:51,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:51,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:51,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:51,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-02-23 12:57:51,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:51,880 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:51,881 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:51,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-23 12:57:51,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:51,885 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:51,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:51,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-02-23 12:57:51,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:51,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:51,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:51,911 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 12:57:51,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250758537] [2021-02-23 12:57:51,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 12:57:51,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 12:57:51,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53946292] [2021-02-23 12:57:51,913 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 12:57:51,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 12:57:51,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 12:57:51,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-23 12:57:51,914 INFO L87 Difference]: Start difference. First operand 116 states and 135 transitions. Second operand 8 states. [2021-02-23 12:57:52,527 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 12:57:54,498 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:57:54,973 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:57:55,374 WARN L202 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:57:55,918 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 12:57:56,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 12:57:56,443 INFO L93 Difference]: Finished difference Result 348 states and 456 transitions. [2021-02-23 12:57:56,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-23 12:57:56,444 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 70 [2021-02-23 12:57:56,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 12:57:56,450 INFO L225 Difference]: With dead ends: 348 [2021-02-23 12:57:56,450 INFO L226 Difference]: Without dead ends: 256 [2021-02-23 12:57:56,451 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-02-23 12:57:56,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-02-23 12:57:56,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 208. [2021-02-23 12:57:56,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2021-02-23 12:57:56,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 250 transitions. [2021-02-23 12:57:56,520 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 250 transitions. Word has length 70 [2021-02-23 12:57:56,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 12:57:56,521 INFO L480 AbstractCegarLoop]: Abstraction has 208 states and 250 transitions. [2021-02-23 12:57:56,521 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 12:57:56,521 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 250 transitions. [2021-02-23 12:57:56,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-02-23 12:57:56,525 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 12:57:56,525 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] [2021-02-23 12:57:56,525 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 12:57:56,526 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 12:57:56,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 12:57:56,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1827476019, now seen corresponding path program 1 times [2021-02-23 12:57:56,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 12:57:56,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920297033] [2021-02-23 12:57:56,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 12:57:56,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:56,578 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:56,578 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:56,582 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:56,582 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:56,583 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:56,583 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:56,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:56,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:56,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:56,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:56,586 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:56,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:56,953 WARN L202 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 12:57:56,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 12:57:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:56,991 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:56,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:56,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 12:57:56,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:56,995 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:56,996 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:56,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-23 12:57:56,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:57,000 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:57,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:57,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 12:57:57,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:57,004 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:57,005 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:57,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 12:57:57,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:57,007 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:57,008 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:57,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-02-23 12:57:57,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:57,018 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:57,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:57,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-02-23 12:57:57,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:57,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:57,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:57,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 12:57:57,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:57,035 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:57,035 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:57,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 12:57:57,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:57,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:57,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:57,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-02-23 12:57:57,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:57,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:57,043 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:57,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-02-23 12:57:57,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:57,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:57,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:57,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-02-23 12:57:57,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:57,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:57,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:57,064 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 12:57:57,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920297033] [2021-02-23 12:57:57,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 12:57:57,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-23 12:57:57,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331950502] [2021-02-23 12:57:57,066 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-23 12:57:57,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 12:57:57,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-23 12:57:57,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-23 12:57:57,067 INFO L87 Difference]: Start difference. First operand 208 states and 250 transitions. Second operand 6 states. [2021-02-23 12:57:57,640 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 12:57:58,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 12:57:58,287 INFO L93 Difference]: Finished difference Result 331 states and 413 transitions. [2021-02-23 12:57:58,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-23 12:57:58,289 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 74 [2021-02-23 12:57:58,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 12:57:58,291 INFO L225 Difference]: With dead ends: 331 [2021-02-23 12:57:58,291 INFO L226 Difference]: Without dead ends: 147 [2021-02-23 12:57:58,293 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-02-23 12:57:58,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-02-23 12:57:58,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 135. [2021-02-23 12:57:58,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2021-02-23 12:57:58,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 150 transitions. [2021-02-23 12:57:58,344 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 150 transitions. Word has length 74 [2021-02-23 12:57:58,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 12:57:58,344 INFO L480 AbstractCegarLoop]: Abstraction has 135 states and 150 transitions. [2021-02-23 12:57:58,344 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-23 12:57:58,344 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 150 transitions. [2021-02-23 12:57:58,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-02-23 12:57:58,346 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 12:57:58,346 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] [2021-02-23 12:57:58,347 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 12:57:58,347 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 12:57:58,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 12:57:58,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1810798573, now seen corresponding path program 1 times [2021-02-23 12:57:58,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 12:57:58,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98526939] [2021-02-23 12:57:58,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 12:57:58,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 12:57:58,447 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 12:57:58,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 12:57:58,523 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 12:57:58,610 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-23 12:57:58,611 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 12:57:58,611 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 12:57:58,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 12:57:58 BoogieIcfgContainer [2021-02-23 12:57:58,799 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 12:57:58,801 INFO L168 Benchmark]: Toolchain (without parser) took 18181.87 ms. Allocated memory was 151.0 MB in the beginning and 407.9 MB in the end (delta: 256.9 MB). Free memory was 125.6 MB in the beginning and 328.6 MB in the end (delta: -203.0 MB). Peak memory consumption was 55.0 MB. Max. memory is 8.0 GB. [2021-02-23 12:57:58,801 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 12:57:58,802 INFO L168 Benchmark]: CACSL2BoogieTranslator took 547.77 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 103.4 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-23 12:57:58,802 INFO L168 Benchmark]: Boogie Preprocessor took 158.06 ms. Allocated memory is still 151.0 MB. Free memory was 103.2 MB in the beginning and 132.5 MB in the end (delta: -29.3 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2021-02-23 12:57:58,803 INFO L168 Benchmark]: RCFGBuilder took 1342.93 ms. Allocated memory is still 151.0 MB. Free memory was 132.5 MB in the beginning and 125.8 MB in the end (delta: 6.6 MB). Peak memory consumption was 87.4 MB. Max. memory is 8.0 GB. [2021-02-23 12:57:58,804 INFO L168 Benchmark]: TraceAbstraction took 16104.95 ms. Allocated memory was 151.0 MB in the beginning and 407.9 MB in the end (delta: 256.9 MB). Free memory was 125.3 MB in the beginning and 328.6 MB in the end (delta: -203.3 MB). Peak memory consumption was 53.6 MB. Max. memory is 8.0 GB. [2021-02-23 12:57:58,806 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 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 547.77 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 103.4 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 158.06 ms. Allocated memory is still 151.0 MB. Free memory was 103.2 MB in the beginning and 132.5 MB in the end (delta: -29.3 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1342.93 ms. Allocated memory is still 151.0 MB. Free memory was 132.5 MB in the beginning and 125.8 MB in the end (delta: 6.6 MB). Peak memory consumption was 87.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 16104.95 ms. Allocated memory was 151.0 MB in the beginning and 407.9 MB in the end (delta: 256.9 MB). Free memory was 125.3 MB in the beginning and 328.6 MB in the end (delta: -203.3 MB). Peak memory consumption was 53.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 582]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L85] int waterLevel = 1; [L86] int methaneLevelCritical = 0; [L343] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L587] int cleanupTimeShifts = 4; [L688] int pumpRunning = 0; [L689] int systemActive = 1; VAL [\old(cleanupTimeShifts)=181, \old(head)=182, \old(head)=169, \old(methaneLevelCritical)=146, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=143, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L663] int retValue_acc ; [L664] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L668] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L669] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L670] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L569] int retValue_acc ; [L572] retValue_acc = 1 [L573] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L670] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L670] tmp = valid_product() [L672] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L674] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L675] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L657] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L884] int splverifierCounter ; [L885] int tmp ; [L886] int tmp___0 ; [L887] int tmp___1 ; [L888] int tmp___2 ; [L891] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L893] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L895] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L901] tmp = __VERIFIER_nondet_int() [L903] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L905] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L103] COND TRUE waterLevel < 2 [L104] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L905] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L911] tmp___0 = __VERIFIER_nondet_int() [L913] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L921] tmp___2 = __VERIFIER_nondet_int() [L923] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L936] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L695] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L702] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L704] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L750] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L753] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L768] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L724] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L727] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L742] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L768] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L704] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L710] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L53] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L124] int retValue_acc ; [L127] retValue_acc = methaneLevelCritical [L128] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L53] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L53] tmp = isMethaneLevelCritical() [L55] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L59] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L156] int retValue_acc ; [L159] retValue_acc = waterLevel [L160] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L59] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L59] tmp___0 = getWaterLevel() [L61] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L63] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L819] int retValue_acc ; [L822] retValue_acc = pumpRunning [L823] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L63] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L63] tmp___1 = isPumpRunning() [L65] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L69] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L582] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 237 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 11.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 498 SDtfs, 784 SDslu, 250 SDs, 0 SdLazy, 1526 SolverSat, 488 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 101 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=208occurred 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: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 142 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 380 NumberOfCodeBlocks, 380 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 301 ConstructedInterpolants, 0 QuantifiedInterpolants, 91894 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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...