/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 03:29:00,922 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 03:29:00,925 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 03:29:00,979 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 03:29:00,980 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 03:29:00,985 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 03:29:00,989 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 03:29:00,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 03:29:01,001 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 03:29:01,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 03:29:01,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 03:29:01,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 03:29:01,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 03:29:01,014 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 03:29:01,016 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 03:29:01,018 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 03:29:01,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 03:29:01,023 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 03:29:01,031 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 03:29:01,040 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 03:29:01,043 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 03:29:01,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 03:29:01,048 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 03:29:01,051 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 03:29:01,059 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 03:29:01,060 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 03:29:01,060 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 03:29:01,063 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 03:29:01,063 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 03:29:01,064 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 03:29:01,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 03:29:01,066 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 03:29:01,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 03:29:01,069 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 03:29:01,070 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 03:29:01,070 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 03:29:01,071 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 03:29:01,082 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 03:29:01,082 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 03:29:01,085 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 03:29:01,086 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 03:29:01,088 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 03:29:01,101 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 03:29:01,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 03:29:01,103 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 03:29:01,103 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 03:29:01,103 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 03:29:01,103 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 03:29:01,104 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 03:29:01,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 03:29:01,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 03:29:01,104 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 03:29:01,104 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 03:29:01,105 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 03:29:01,105 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 03:29:01,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 03:29:01,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 03:29:01,105 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 03:29:01,106 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 03:29:01,106 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 03:29:01,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 03:29:01,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 03:29:01,106 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 03:29:01,107 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 03:29:01,107 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 03:29:01,107 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 03:29:01,536 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 03:29:01,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 03:29:01,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 03:29:01,597 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 03:29:01,598 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 03:29:01,599 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product36.cil.c [2021-02-24 03:29:01,681 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ad62c901/6d71659beb39495c8bb38117b683e409/FLAGad352159f [2021-02-24 03:29:02,493 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 03:29:02,494 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product36.cil.c [2021-02-24 03:29:02,506 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ad62c901/6d71659beb39495c8bb38117b683e409/FLAGad352159f [2021-02-24 03:29:02,742 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ad62c901/6d71659beb39495c8bb38117b683e409 [2021-02-24 03:29:02,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 03:29:02,763 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 03:29:02,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 03:29:02,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 03:29:02,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 03:29:02,774 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:29:02" (1/1) ... [2021-02-24 03:29:02,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28874de8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:29:02, skipping insertion in model container [2021-02-24 03:29:02,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:29:02" (1/1) ... [2021-02-24 03:29:02,786 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 03:29:02,854 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 03:29:03,001 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_product36.cil.c[1281,1294] [2021-02-24 03:29:03,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:29:03,266 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 03:29:03,284 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_product36.cil.c[1281,1294] [2021-02-24 03:29:03,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:29:03,386 INFO L208 MainTranslator]: Completed translation [2021-02-24 03:29:03,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:29:03 WrapperNode [2021-02-24 03:29:03,387 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 03:29:03,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 03:29:03,389 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 03:29:03,389 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 03:29:03,402 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:29:03" (1/1) ... [2021-02-24 03:29:03,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:29:03" (1/1) ... [2021-02-24 03:29:03,431 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:29:03" (1/1) ... [2021-02-24 03:29:03,431 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:29:03" (1/1) ... [2021-02-24 03:29:03,481 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:29:03" (1/1) ... [2021-02-24 03:29:03,489 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:29:03" (1/1) ... [2021-02-24 03:29:03,495 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:29:03" (1/1) ... [2021-02-24 03:29:03,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 03:29:03,504 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 03:29:03,504 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 03:29:03,504 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 03:29:03,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:29:03" (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 [2021-02-24 03:29:03,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 03:29:03,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 03:29:03,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-24 03:29:03,612 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 03:29:03,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-24 03:29:03,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-24 03:29:03,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-24 03:29:03,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-24 03:29:03,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-24 03:29:03,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-24 03:29:03,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-24 03:29:03,613 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-24 03:29:03,613 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-24 03:29:03,614 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-24 03:29:03,614 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-24 03:29:03,614 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-24 03:29:03,614 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-24 03:29:03,614 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-24 03:29:03,614 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-24 03:29:03,615 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-24 03:29:03,615 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-24 03:29:03,615 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-24 03:29:03,615 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-24 03:29:03,615 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-24 03:29:03,615 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-24 03:29:03,616 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-24 03:29:03,616 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-24 03:29:03,616 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-24 03:29:03,616 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-24 03:29:03,616 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-24 03:29:03,617 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-24 03:29:03,617 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-24 03:29:03,617 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-24 03:29:03,617 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-24 03:29:03,617 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 03:29:03,617 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-24 03:29:03,617 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-24 03:29:03,618 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-24 03:29:03,618 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-24 03:29:03,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-24 03:29:03,618 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 03:29:03,618 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 03:29:03,618 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 03:29:03,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 03:29:03,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 03:29:03,619 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-24 03:29:03,619 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-24 03:29:03,619 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-24 03:29:03,619 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-24 03:29:03,619 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-24 03:29:03,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-24 03:29:03,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-24 03:29:03,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 03:29:03,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-24 03:29:03,620 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-24 03:29:03,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 03:29:03,621 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-24 03:29:03,621 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-24 03:29:03,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 03:29:03,621 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-24 03:29:03,621 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-24 03:29:03,622 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-24 03:29:03,622 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-24 03:29:03,622 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-24 03:29:03,622 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-24 03:29:03,622 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-24 03:29:03,622 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-24 03:29:03,622 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-24 03:29:03,623 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-24 03:29:03,623 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-24 03:29:03,623 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-24 03:29:03,623 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-24 03:29:03,623 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-24 03:29:03,624 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-24 03:29:03,624 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-24 03:29:03,624 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-24 03:29:03,624 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-24 03:29:03,624 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-24 03:29:03,624 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-24 03:29:03,624 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-24 03:29:03,625 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-24 03:29:03,625 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-24 03:29:03,625 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-24 03:29:03,625 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-24 03:29:03,625 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-24 03:29:03,625 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-24 03:29:03,625 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-24 03:29:03,625 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-24 03:29:03,626 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-24 03:29:03,626 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 03:29:03,626 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-24 03:29:03,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 03:29:03,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 03:29:03,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 03:29:04,945 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 03:29:04,946 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-24 03:29:04,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:29:04 BoogieIcfgContainer [2021-02-24 03:29:04,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 03:29:04,954 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 03:29:04,954 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 03:29:04,958 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 03:29:04,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 03:29:02" (1/3) ... [2021-02-24 03:29:04,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eb86f07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:29:04, skipping insertion in model container [2021-02-24 03:29:04,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:29:03" (2/3) ... [2021-02-24 03:29:04,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eb86f07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:29:04, skipping insertion in model container [2021-02-24 03:29:04,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:29:04" (3/3) ... [2021-02-24 03:29:04,962 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product36.cil.c [2021-02-24 03:29:04,970 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 03:29:04,976 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 03:29:04,998 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 03:29:05,032 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 03:29:05,033 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 03:29:05,033 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 03:29:05,034 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 03:29:05,034 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 03:29:05,034 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 03:29:05,034 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 03:29:05,036 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 03:29:05,075 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states. [2021-02-24 03:29:05,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-24 03:29:05,116 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:29:05,117 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:29:05,117 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:29:05,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:29:05,124 INFO L82 PathProgramCache]: Analyzing trace with hash -251930548, now seen corresponding path program 1 times [2021-02-24 03:29:05,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:29:05,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1569170190] [2021-02-24 03:29:05,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:29:05,222 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:29:05,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:05,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:05,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:05,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:05,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:05,943 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:29:05,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:29:05,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:06,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:06,061 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:06,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:29:06,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:06,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:06,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:06,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:29:06,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:06,088 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:06,088 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:06,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:29:06,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:06,093 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:06,093 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:06,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:29:06,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:06,097 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:06,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:06,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-24 03:29:06,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:06,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:06,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:06,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 03:29:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:06,107 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:06,108 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:06,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-24 03:29:06,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:06,112 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:06,113 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:06,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:29:06,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1569170190] [2021-02-24 03:29:06,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:29:06,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-24 03:29:06,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463650602] [2021-02-24 03:29:06,191 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-24 03:29:06,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:29:06,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-24 03:29:06,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 03:29:06,209 INFO L87 Difference]: Start difference. First operand 314 states. Second operand 3 states. [2021-02-24 03:29:07,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:29:07,909 INFO L93 Difference]: Finished difference Result 476 states and 564 transitions. [2021-02-24 03:29:07,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-24 03:29:07,911 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2021-02-24 03:29:07,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:29:07,929 INFO L225 Difference]: With dead ends: 476 [2021-02-24 03:29:07,929 INFO L226 Difference]: Without dead ends: 298 [2021-02-24 03:29:07,935 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 [2021-02-24 03:29:07,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2021-02-24 03:29:08,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 256. [2021-02-24 03:29:08,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2021-02-24 03:29:08,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 276 transitions. [2021-02-24 03:29:08,115 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 276 transitions. Word has length 158 [2021-02-24 03:29:08,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:29:08,116 INFO L480 AbstractCegarLoop]: Abstraction has 256 states and 276 transitions. [2021-02-24 03:29:08,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-24 03:29:08,117 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 276 transitions. [2021-02-24 03:29:08,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-24 03:29:08,121 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:29:08,122 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:29:08,122 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 03:29:08,122 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:29:08,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:29:08,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1795389272, now seen corresponding path program 1 times [2021-02-24 03:29:08,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:29:08,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [869782785] [2021-02-24 03:29:08,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:29:08,129 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:29:08,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:08,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:08,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:08,242 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:08,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:29:08,246 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:08,247 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:08,572 WARN L202 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:29:08,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:29:08,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:08,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:08,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:08,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:29:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:08,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:08,660 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:08,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:29:08,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:08,663 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:08,663 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:08,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:29:08,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:08,666 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:08,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:08,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:29:08,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:08,670 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:08,671 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:08,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-24 03:29:08,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:08,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:08,674 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:08,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-24 03:29:08,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:08,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:08,678 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:08,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-24 03:29:08,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:08,681 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:08,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:08,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:29:08,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [869782785] [2021-02-24 03:29:08,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:29:08,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 03:29:08,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080231125] [2021-02-24 03:29:08,718 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 03:29:08,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:29:08,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 03:29:08,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 03:29:08,719 INFO L87 Difference]: Start difference. First operand 256 states and 276 transitions. Second operand 4 states. [2021-02-24 03:29:09,450 WARN L202 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:29:10,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:29:10,414 INFO L93 Difference]: Finished difference Result 379 states and 424 transitions. [2021-02-24 03:29:10,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 03:29:10,415 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-02-24 03:29:10,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:29:10,419 INFO L225 Difference]: With dead ends: 379 [2021-02-24 03:29:10,419 INFO L226 Difference]: Without dead ends: 281 [2021-02-24 03:29:10,421 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 [2021-02-24 03:29:10,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2021-02-24 03:29:10,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 246. [2021-02-24 03:29:10,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2021-02-24 03:29:10,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 263 transitions. [2021-02-24 03:29:10,512 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 263 transitions. Word has length 159 [2021-02-24 03:29:10,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:29:10,513 INFO L480 AbstractCegarLoop]: Abstraction has 246 states and 263 transitions. [2021-02-24 03:29:10,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 03:29:10,513 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 263 transitions. [2021-02-24 03:29:10,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-02-24 03:29:10,515 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:29:10,515 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:29:10,516 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 03:29:10,516 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:29:10,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:29:10,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1756115113, now seen corresponding path program 1 times [2021-02-24 03:29:10,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:29:10,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [815555311] [2021-02-24 03:29:10,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:29:10,521 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:29:10,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:10,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:10,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:10,604 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:10,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:29:10,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:10,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:29:10,613 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:10,614 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:10,614 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:10,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:29:10,620 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:10,620 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:10,994 WARN L202 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:29:10,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:29:11,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:11,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:11,037 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:11,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:29:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:11,049 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:11,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:11,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:29:11,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:11,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:11,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:11,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:29:11,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:11,064 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:11,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:11,078 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:11,079 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:29:11,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:11,091 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:29:11,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:29:11,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:11,107 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:11,108 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:11,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-24 03:29:11,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:11,122 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:11,123 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:29:11,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-24 03:29:11,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:11,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:11,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:11,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-02-24 03:29:11,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:11,141 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:11,141 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:11,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-02-24 03:29:11,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:11,144 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:11,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:11,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:29:11,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [815555311] [2021-02-24 03:29:11,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:29:11,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-24 03:29:11,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628196147] [2021-02-24 03:29:11,183 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 03:29:11,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:29:11,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 03:29:11,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-24 03:29:11,184 INFO L87 Difference]: Start difference. First operand 246 states and 263 transitions. Second operand 10 states. [2021-02-24 03:29:11,851 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:29:12,263 WARN L202 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:29:12,644 WARN L202 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:29:12,980 WARN L202 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:29:13,346 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:29:13,709 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:29:14,778 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:29:17,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:29:17,319 INFO L93 Difference]: Finished difference Result 670 states and 775 transitions. [2021-02-24 03:29:17,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-24 03:29:17,320 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2021-02-24 03:29:17,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:29:17,325 INFO L225 Difference]: With dead ends: 670 [2021-02-24 03:29:17,326 INFO L226 Difference]: Without dead ends: 539 [2021-02-24 03:29:17,328 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2021-02-24 03:29:17,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2021-02-24 03:29:17,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 436. [2021-02-24 03:29:17,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 436 states. [2021-02-24 03:29:17,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 481 transitions. [2021-02-24 03:29:17,533 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 481 transitions. Word has length 172 [2021-02-24 03:29:17,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:29:17,534 INFO L480 AbstractCegarLoop]: Abstraction has 436 states and 481 transitions. [2021-02-24 03:29:17,534 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 03:29:17,534 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 481 transitions. [2021-02-24 03:29:17,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-02-24 03:29:17,538 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:29:17,538 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:29:17,538 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 03:29:17,538 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:29:17,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:29:17,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1318568750, now seen corresponding path program 1 times [2021-02-24 03:29:17,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:29:17,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1589234951] [2021-02-24 03:29:17,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:29:17,543 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:29:17,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:17,629 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:17,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:29:17,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:17,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:29:17,635 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:17,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:29:17,637 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:17,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:29:17,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:17,640 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:29:17,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:17,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:29:17,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:17,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:29:17,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:17,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:17,986 WARN L202 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:29:17,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:29:18,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:18,037 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:18,037 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:18,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:18,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:29:18,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:29:18,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:18,047 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:18,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:18,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:29:18,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:18,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:18,051 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:18,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:29:18,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:18,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:18,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:18,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:29:18,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:18,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:18,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:18,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-24 03:29:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:18,076 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:18,077 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:18,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-02-24 03:29:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:18,080 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:18,080 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:18,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-02-24 03:29:18,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:18,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:18,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:18,086 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:18,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:29:18,097 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:18,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:29:18,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-02-24 03:29:18,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:18,111 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:18,112 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:18,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:29:18,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1589234951] [2021-02-24 03:29:18,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:29:18,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-24 03:29:18,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368438105] [2021-02-24 03:29:18,163 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 03:29:18,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:29:18,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 03:29:18,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-24 03:29:18,164 INFO L87 Difference]: Start difference. First operand 436 states and 481 transitions. Second operand 9 states. [2021-02-24 03:29:18,766 WARN L202 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:29:20,764 WARN L202 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:29:21,156 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:29:21,580 WARN L202 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:29:22,055 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:29:22,447 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:29:22,829 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:29:23,248 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:29:24,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:29:24,139 INFO L93 Difference]: Finished difference Result 1152 states and 1376 transitions. [2021-02-24 03:29:24,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-24 03:29:24,140 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 177 [2021-02-24 03:29:24,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:29:24,151 INFO L225 Difference]: With dead ends: 1152 [2021-02-24 03:29:24,151 INFO L226 Difference]: Without dead ends: 831 [2021-02-24 03:29:24,153 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-02-24 03:29:24,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2021-02-24 03:29:24,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 732. [2021-02-24 03:29:24,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 732 states. [2021-02-24 03:29:24,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 828 transitions. [2021-02-24 03:29:24,478 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 828 transitions. Word has length 177 [2021-02-24 03:29:24,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:29:24,478 INFO L480 AbstractCegarLoop]: Abstraction has 732 states and 828 transitions. [2021-02-24 03:29:24,478 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 03:29:24,478 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 828 transitions. [2021-02-24 03:29:24,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-02-24 03:29:24,483 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:29:24,484 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:29:24,484 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 03:29:24,484 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:29:24,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:29:24,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1126686393, now seen corresponding path program 1 times [2021-02-24 03:29:24,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:29:24,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [545236561] [2021-02-24 03:29:24,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:29:24,488 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:29:24,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:24,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:24,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:29:24,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:24,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:29:24,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:24,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:29:24,559 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:24,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:29:24,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:24,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:29:24,561 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:24,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:29:24,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:24,563 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:24,875 WARN L202 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:29:24,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:29:24,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:24,926 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:24,927 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:24,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:24,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:29:24,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:29:24,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:24,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:24,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:24,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:29:24,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:24,939 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:24,940 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:24,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:29:24,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:24,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:24,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:24,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:29:24,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:24,946 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:24,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:24,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-24 03:29:24,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:24,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:24,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:29:24,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-24 03:29:24,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:24,988 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:24,988 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:24,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-02-24 03:29:24,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:24,994 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:24,995 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:24,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-02-24 03:29:24,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:24,997 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:24,998 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:24,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-02-24 03:29:24,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:29:25,000 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:29:25,001 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:29:25,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:29:25,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [545236561] [2021-02-24 03:29:25,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:29:25,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 03:29:25,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507558565] [2021-02-24 03:29:25,046 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 03:29:25,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:29:25,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 03:29:25,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-24 03:29:25,048 INFO L87 Difference]: Start difference. First operand 732 states and 828 transitions. Second operand 6 states. [2021-02-24 03:29:25,633 WARN L202 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:29:28,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:29:28,050 INFO L93 Difference]: Finished difference Result 1712 states and 2025 transitions. [2021-02-24 03:29:28,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-24 03:29:28,051 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 182 [2021-02-24 03:29:28,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:29:28,060 INFO L225 Difference]: With dead ends: 1712 [2021-02-24 03:29:28,060 INFO L226 Difference]: Without dead ends: 1095 [2021-02-24 03:29:28,062 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-02-24 03:29:28,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2021-02-24 03:29:28,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 1015. [2021-02-24 03:29:28,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2021-02-24 03:29:28,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1152 transitions. [2021-02-24 03:29:28,516 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1152 transitions. Word has length 182 [2021-02-24 03:29:28,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:29:28,517 INFO L480 AbstractCegarLoop]: Abstraction has 1015 states and 1152 transitions. [2021-02-24 03:29:28,517 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 03:29:28,517 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1152 transitions. [2021-02-24 03:29:28,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-02-24 03:29:28,520 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:29:28,521 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:29:28,521 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 03:29:28,521 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:29:28,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:29:28,522 INFO L82 PathProgramCache]: Analyzing trace with hash -2136655117, now seen corresponding path program 1 times [2021-02-24 03:29:28,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:29:28,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [187482824] [2021-02-24 03:29:28,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:29:28,525 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:29:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 03:29:28,621 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 03:29:28,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 03:29:28,708 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 03:29:28,953 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-24 03:29:28,953 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-24 03:29:28,956 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-24 03:29:28,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 03:29:28 BoogieIcfgContainer [2021-02-24 03:29:28,986 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 03:29:28,987 INFO L168 Benchmark]: Toolchain (without parser) took 26237.28 ms. Allocated memory was 161.5 MB in the beginning and 565.2 MB in the end (delta: 403.7 MB). Free memory was 136.8 MB in the beginning and 328.8 MB in the end (delta: -192.0 MB). Peak memory consumption was 212.9 MB. Max. memory is 8.0 GB. [2021-02-24 03:29:28,987 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 161.5 MB. Free memory is still 137.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 03:29:28,988 INFO L168 Benchmark]: CACSL2BoogieTranslator took 619.54 ms. Allocated memory is still 161.5 MB. Free memory was 135.8 MB in the beginning and 114.9 MB in the end (delta: 20.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-24 03:29:28,988 INFO L168 Benchmark]: Boogie Preprocessor took 114.08 ms. Allocated memory is still 161.5 MB. Free memory was 114.9 MB in the beginning and 111.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-24 03:29:28,989 INFO L168 Benchmark]: RCFGBuilder took 1447.41 ms. Allocated memory was 161.5 MB in the beginning and 200.3 MB in the end (delta: 38.8 MB). Free memory was 110.8 MB in the beginning and 161.5 MB in the end (delta: -50.6 MB). Peak memory consumption was 43.7 MB. Max. memory is 8.0 GB. [2021-02-24 03:29:28,989 INFO L168 Benchmark]: TraceAbstraction took 24032.15 ms. Allocated memory was 200.3 MB in the beginning and 565.2 MB in the end (delta: 364.9 MB). Free memory was 160.9 MB in the beginning and 328.8 MB in the end (delta: -167.9 MB). Peak memory consumption was 197.6 MB. Max. memory is 8.0 GB. [2021-02-24 03:29:28,992 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 161.5 MB. Free memory is still 137.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 619.54 ms. Allocated memory is still 161.5 MB. Free memory was 135.8 MB in the beginning and 114.9 MB in the end (delta: 20.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 114.08 ms. Allocated memory is still 161.5 MB. Free memory was 114.9 MB in the beginning and 111.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1447.41 ms. Allocated memory was 161.5 MB in the beginning and 200.3 MB in the end (delta: 38.8 MB). Free memory was 110.8 MB in the beginning and 161.5 MB in the end (delta: -50.6 MB). Peak memory consumption was 43.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 24032.15 ms. Allocated memory was 200.3 MB in the beginning and 565.2 MB in the end (delta: 364.9 MB). Free memory was 160.9 MB in the beginning and 328.8 MB in the end (delta: -167.9 MB). Peak memory consumption was 197.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 46]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L220] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L428] int pumpRunning = 0; [L429] int systemActive = 1; [L677] int waterLevel = 1; [L678] int methaneLevelCritical = 0; [L771] int cleanupTimeShifts = 4; [L847] int retValue_acc ; [L848] int tmp ; [L852] FCALL select_helpers() [L853] FCALL select_features() [L854] CALL, EXPR valid_product() [L896] int retValue_acc ; [L899] retValue_acc = 1 [L900] return (retValue_acc); [L854] RET, EXPR valid_product() [L854] tmp = valid_product() [L856] COND TRUE \read(tmp) [L858] FCALL setup() [L859] CALL runTest() [L838] CALL test() [L608] int splverifierCounter ; [L609] int tmp ; [L610] int tmp___0 ; [L611] int tmp___1 ; [L612] int tmp___2 ; [L615] splverifierCounter = 0 [L617] COND TRUE 1 [L619] COND TRUE splverifierCounter < 4 [L625] tmp = __VERIFIER_nondet_int() [L627] COND TRUE \read(tmp) [L629] CALL waterRise() [L695] COND TRUE waterLevel < 2 [L696] waterLevel = waterLevel + 1 [L629] RET waterRise() [L635] tmp___0 = __VERIFIER_nondet_int() [L637] COND FALSE !(\read(tmp___0)) [L645] tmp___2 = __VERIFIER_nondet_int() [L647] COND FALSE !(\read(tmp___2)) [L653] tmp___1 = __VERIFIER_nondet_int() [L655] COND TRUE \read(tmp___1) [L657] CALL stopSystem() [L584] COND FALSE !(\read(pumpRunning)) [L591] systemActive = 0 [L657] RET stopSystem() [L664] CALL timeShift() [L436] COND FALSE !(\read(pumpRunning)) [L443] COND FALSE !(\read(systemActive)) [L451] CALL __utac_acc__Specification3_spec__1() [L906] int tmp ; [L907] int tmp___0 ; [L908] int tmp___1 ; [L912] CALL, EXPR isMethaneLevelCritical() [L716] int retValue_acc ; [L719] retValue_acc = methaneLevelCritical [L720] return (retValue_acc); [L912] RET, EXPR isMethaneLevelCritical() [L912] tmp = isMethaneLevelCritical() [L914] COND FALSE !(\read(tmp)) [L918] CALL, EXPR getWaterLevel() [L748] int retValue_acc ; [L751] retValue_acc = waterLevel [L752] return (retValue_acc); [L918] RET, EXPR getWaterLevel() [L918] tmp___0 = getWaterLevel() [L920] COND TRUE tmp___0 == 2 [L922] CALL, EXPR isPumpRunning() [L517] int retValue_acc ; [L520] retValue_acc = pumpRunning [L521] return (retValue_acc); [L922] RET, EXPR isPumpRunning() [L922] tmp___1 = isPumpRunning() [L924] COND FALSE !(\read(tmp___1)) [L928] CALL __automaton_fail() [L46] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 631 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 23.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 18.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1227 SDtfs, 1974 SDslu, 1635 SDs, 0 SdLazy, 3466 SolverSat, 656 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 7.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1015occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 359 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...