/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:54:01,938 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:54:01,942 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:54:01,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:54:01,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:54:01,997 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:54:02,001 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:54:02,010 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:54:02,014 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:54:02,022 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:54:02,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:54:02,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:54:02,026 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:54:02,029 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:54:02,032 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:54:02,034 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:54:02,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:54:02,040 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:54:02,061 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:54:02,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:54:02,069 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:54:02,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:54:02,072 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:54:02,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:54:02,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:54:02,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:54:02,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:54:02,086 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:54:02,087 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:54:02,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:54:02,089 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:54:02,090 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:54:02,092 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:54:02,093 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:54:02,094 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:54:02,094 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:54:02,095 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:54:02,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:54:02,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:54:02,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:54:02,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:54:02,099 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 19:54:02,119 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:54:02,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:54:02,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:54:02,126 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:54:02,126 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:54:02,126 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:54:02,127 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:54:02,127 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:54:02,127 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:54:02,127 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:54:02,127 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:54:02,128 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:54:02,128 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:54:02,128 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:54:02,128 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:54:02,129 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:54:02,129 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:54:02,129 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:54:02,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:54:02,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:54:02,130 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:54:02,130 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:54:02,130 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:54:02,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:54:02,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:54:02,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:54:02,568 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:54:02,569 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:54:02,571 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product50.cil.c [2020-10-23 19:54:02,651 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9971dd300/ab3daa1e61c544caa7adb7c4f64850a9/FLAG55bc467c0 [2020-10-23 19:54:03,369 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:54:03,370 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product50.cil.c [2020-10-23 19:54:03,385 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9971dd300/ab3daa1e61c544caa7adb7c4f64850a9/FLAG55bc467c0 [2020-10-23 19:54:03,608 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9971dd300/ab3daa1e61c544caa7adb7c4f64850a9 [2020-10-23 19:54:03,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:54:03,623 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:54:03,626 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:54:03,626 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:54:03,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:54:03,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:54:03" (1/1) ... [2020-10-23 19:54:03,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42dc20ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:54:03, skipping insertion in model container [2020-10-23 19:54:03,636 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:54:03" (1/1) ... [2020-10-23 19:54:03,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:54:03,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:54:04,155 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:54:04,169 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:54:04,254 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:54:04,300 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:54:04,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:54:04 WrapperNode [2020-10-23 19:54:04,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:54:04,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:54:04,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:54:04,303 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:54:04,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:54:04" (1/1) ... [2020-10-23 19:54:04,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:54:04" (1/1) ... [2020-10-23 19:54:04,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:54:04" (1/1) ... [2020-10-23 19:54:04,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:54:04" (1/1) ... [2020-10-23 19:54:04,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:54:04" (1/1) ... [2020-10-23 19:54:04,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:54:04" (1/1) ... [2020-10-23 19:54:04,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:54:04" (1/1) ... [2020-10-23 19:54:04,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:54:04,420 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:54:04,420 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:54:04,420 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:54:04,421 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:54:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:54:04,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:54:04,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:54:04,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:54:04,569 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:54:04,569 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:54:04,570 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:54:04,570 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:54:04,570 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:54:04,570 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:54:04,571 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:54:04,571 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:54:04,571 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:54:04,571 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:54:04,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-10-23 19:54:04,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-10-23 19:54:04,572 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:54:04,572 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:54:04,573 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:54:04,573 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:54:04,573 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:54:04,574 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:54:04,574 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 19:54:04,577 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 19:54:04,578 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:54:04,578 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 19:54:04,578 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 19:54:04,578 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:54:04,578 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:54:04,578 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:54:04,578 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:54:04,579 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:54:04,579 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:54:04,579 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 19:54:04,579 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 19:54:04,580 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 19:54:04,580 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:54:04,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:54:04,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:54:04,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:54:04,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:54:04,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:54:04,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:54:04,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:54:04,582 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:54:04,582 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:54:04,582 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:54:04,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:54:04,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:54:04,583 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:54:04,583 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:54:04,583 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:54:04,583 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:54:04,583 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:54:04,584 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:54:04,584 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:54:04,584 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:54:04,584 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:54:04,584 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:54:04,584 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:54:04,585 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:54:04,585 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-10-23 19:54:04,585 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:54:04,585 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:54:04,585 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:54:04,586 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:54:04,586 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:54:04,586 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:54:04,586 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-10-23 19:54:04,586 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:54:04,587 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:54:04,587 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:54:04,587 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 19:54:04,587 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 19:54:04,587 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:54:04,587 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:54:04,588 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 19:54:04,588 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:54:04,589 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 19:54:04,589 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 19:54:04,589 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 19:54:04,590 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 19:54:04,590 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:54:04,590 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:54:04,590 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:54:04,591 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:54:04,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:54:04,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:54:04,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:54:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:54:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:54:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:54:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:54:04,594 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:54:04,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:54:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:54:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:54:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:54:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:54:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:54:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:54:06,050 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:54:06,053 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:54:06,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:54:06 BoogieIcfgContainer [2020-10-23 19:54:06,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:54:06,063 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:54:06,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:54:06,067 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:54:06,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:54:03" (1/3) ... [2020-10-23 19:54:06,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36ea291c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:54:06, skipping insertion in model container [2020-10-23 19:54:06,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:54:04" (2/3) ... [2020-10-23 19:54:06,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36ea291c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:54:06, skipping insertion in model container [2020-10-23 19:54:06,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:54:06" (3/3) ... [2020-10-23 19:54:06,072 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product50.cil.c [2020-10-23 19:54:06,087 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:54:06,093 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:54:06,107 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:54:06,144 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:54:06,145 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:54:06,145 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:54:06,145 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:54:06,146 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:54:06,146 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:54:06,146 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:54:06,147 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:54:06,182 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states. [2020-10-23 19:54:06,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-23 19:54:06,222 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:54:06,223 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:54:06,224 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:54:06,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:54:06,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1178918620, now seen corresponding path program 1 times [2020-10-23 19:54:06,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:54:06,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [437022694] [2020-10-23 19:54:06,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:54:06,328 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:54:06,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:07,158 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:54:07,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:54:07,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:07,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:54:07,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:07,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:54:07,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:07,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:54:07,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:07,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:54:07,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:07,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:54:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:07,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:54:07,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:07,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 19:54:07,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:07,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:54:07,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [437022694] [2020-10-23 19:54:07,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:54:07,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:54:07,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629134904] [2020-10-23 19:54:07,379 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:54:07,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:54:07,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:54:07,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:54:07,398 INFO L87 Difference]: Start difference. First operand 340 states. Second operand 4 states. [2020-10-23 19:54:09,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:54:09,193 INFO L93 Difference]: Finished difference Result 522 states and 614 transitions. [2020-10-23 19:54:09,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-23 19:54:09,195 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-10-23 19:54:09,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:54:09,213 INFO L225 Difference]: With dead ends: 522 [2020-10-23 19:54:09,213 INFO L226 Difference]: Without dead ends: 329 [2020-10-23 19:54:09,219 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:54:09,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2020-10-23 19:54:09,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 280. [2020-10-23 19:54:09,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-10-23 19:54:09,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 303 transitions. [2020-10-23 19:54:09,429 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 303 transitions. Word has length 154 [2020-10-23 19:54:09,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:54:09,430 INFO L481 AbstractCegarLoop]: Abstraction has 280 states and 303 transitions. [2020-10-23 19:54:09,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:54:09,430 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 303 transitions. [2020-10-23 19:54:09,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-23 19:54:09,434 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:54:09,435 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] [2020-10-23 19:54:09,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:54:09,435 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:54:09,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:54:09,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1721183889, now seen corresponding path program 1 times [2020-10-23 19:54:09,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:54:09,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1523686791] [2020-10-23 19:54:09,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:54:09,441 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:54:09,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:09,998 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:54:10,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:54:10,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:10,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:54:10,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:10,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:54:10,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:10,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:54:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:10,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:54:10,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:10,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:54:10,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:10,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-23 19:54:10,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:10,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 19:54:10,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:10,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:54:10,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1523686791] [2020-10-23 19:54:10,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:54:10,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-23 19:54:10,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412317456] [2020-10-23 19:54:10,139 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 19:54:10,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:54:10,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 19:54:10,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 19:54:10,141 INFO L87 Difference]: Start difference. First operand 280 states and 303 transitions. Second operand 5 states. [2020-10-23 19:54:10,997 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:12,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:54:12,517 INFO L93 Difference]: Finished difference Result 444 states and 501 transitions. [2020-10-23 19:54:12,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 19:54:12,518 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2020-10-23 19:54:12,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:54:12,522 INFO L225 Difference]: With dead ends: 444 [2020-10-23 19:54:12,523 INFO L226 Difference]: Without dead ends: 318 [2020-10-23 19:54:12,525 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-23 19:54:12,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-10-23 19:54:12,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 270. [2020-10-23 19:54:12,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-10-23 19:54:12,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 290 transitions. [2020-10-23 19:54:12,656 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 290 transitions. Word has length 155 [2020-10-23 19:54:12,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:54:12,659 INFO L481 AbstractCegarLoop]: Abstraction has 270 states and 290 transitions. [2020-10-23 19:54:12,659 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 19:54:12,659 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 290 transitions. [2020-10-23 19:54:12,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-23 19:54:12,665 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:54:12,666 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] [2020-10-23 19:54:12,666 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:54:12,667 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:54:12,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:54:12,667 INFO L82 PathProgramCache]: Analyzing trace with hash -468578614, now seen corresponding path program 1 times [2020-10-23 19:54:12,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:54:12,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1222510372] [2020-10-23 19:54:12,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:54:12,672 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:54:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:13,353 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:54:13,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:54:13,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:13,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:54:13,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:13,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:54:13,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:13,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:54:13,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:13,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:54:13,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:13,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:54:13,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:13,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 19:54:13,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:13,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 19:54:13,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:13,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 19:54:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:13,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:54:13,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1222510372] [2020-10-23 19:54:13,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:54:13,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 19:54:13,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387210926] [2020-10-23 19:54:13,597 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 19:54:13,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:54:13,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 19:54:13,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-23 19:54:13,605 INFO L87 Difference]: Start difference. First operand 270 states and 290 transitions. Second operand 11 states. [2020-10-23 19:54:14,297 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:54:14,827 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:15,233 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-23 19:54:15,678 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:16,084 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:54:16,506 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:18,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:54:18,735 INFO L93 Difference]: Finished difference Result 491 states and 566 transitions. [2020-10-23 19:54:18,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 19:54:18,735 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 168 [2020-10-23 19:54:18,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:54:18,741 INFO L225 Difference]: With dead ends: 491 [2020-10-23 19:54:18,742 INFO L226 Difference]: Without dead ends: 341 [2020-10-23 19:54:18,744 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=127, Invalid=293, Unknown=0, NotChecked=0, Total=420 [2020-10-23 19:54:18,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2020-10-23 19:54:18,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 270. [2020-10-23 19:54:18,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-10-23 19:54:18,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 289 transitions. [2020-10-23 19:54:18,853 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 289 transitions. Word has length 168 [2020-10-23 19:54:18,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:54:18,854 INFO L481 AbstractCegarLoop]: Abstraction has 270 states and 289 transitions. [2020-10-23 19:54:18,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 19:54:18,854 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 289 transitions. [2020-10-23 19:54:18,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-23 19:54:18,857 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:54:18,857 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] [2020-10-23 19:54:18,857 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:54:18,858 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:54:18,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:54:18,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1225681870, now seen corresponding path program 1 times [2020-10-23 19:54:18,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:54:18,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1665653700] [2020-10-23 19:54:18,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:54:18,862 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:54:18,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:19,255 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:54:19,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:54:19,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:19,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:54:19,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:19,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:54:19,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:19,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:54:19,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:19,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:54:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:19,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:54:19,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:19,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 19:54:19,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:19,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 19:54:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:19,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:19,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:19,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:19,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-10-23 19:54:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:19,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-23 19:54:19,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:19,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:54:19,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1665653700] [2020-10-23 19:54:19,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:54:19,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 19:54:19,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693295275] [2020-10-23 19:54:19,487 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 19:54:19,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:54:19,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 19:54:19,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-23 19:54:19,488 INFO L87 Difference]: Start difference. First operand 270 states and 289 transitions. Second operand 8 states. [2020-10-23 19:54:20,255 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:54:22,473 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:23,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:54:23,705 INFO L93 Difference]: Finished difference Result 681 states and 811 transitions. [2020-10-23 19:54:23,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-23 19:54:23,707 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 181 [2020-10-23 19:54:23,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:54:23,714 INFO L225 Difference]: With dead ends: 681 [2020-10-23 19:54:23,714 INFO L226 Difference]: Without dead ends: 531 [2020-10-23 19:54:23,716 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-10-23 19:54:23,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2020-10-23 19:54:23,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 388. [2020-10-23 19:54:23,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 388 states. [2020-10-23 19:54:23,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 418 transitions. [2020-10-23 19:54:23,908 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 418 transitions. Word has length 181 [2020-10-23 19:54:23,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:54:23,908 INFO L481 AbstractCegarLoop]: Abstraction has 388 states and 418 transitions. [2020-10-23 19:54:23,909 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 19:54:23,909 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 418 transitions. [2020-10-23 19:54:23,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-10-23 19:54:23,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:54:23,912 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:54:23,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:54:23,912 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:54:23,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:54:23,913 INFO L82 PathProgramCache]: Analyzing trace with hash -547093972, now seen corresponding path program 1 times [2020-10-23 19:54:23,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:54:23,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1434329799] [2020-10-23 19:54:23,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:54:23,917 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:54:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:24,357 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:54:24,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:54:24,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:24,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:54:24,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:24,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:54:24,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:24,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:54:24,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:24,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:54:24,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:24,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:54:24,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:24,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 19:54:24,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:24,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 19:54:24,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:24,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:24,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:24,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:24,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:24,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:54:24,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:24,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:54:24,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:24,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-10-23 19:54:24,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:24,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-10-23 19:54:24,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:24,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:54:24,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1434329799] [2020-10-23 19:54:24,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:54:24,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 19:54:24,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783125111] [2020-10-23 19:54:24,621 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 19:54:24,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:54:24,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 19:54:24,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-23 19:54:24,622 INFO L87 Difference]: Start difference. First operand 388 states and 418 transitions. Second operand 11 states. [2020-10-23 19:54:25,375 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:54:27,464 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:27,871 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:54:28,313 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:28,714 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:54:29,127 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:54:29,535 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:29,941 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:30,439 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:32,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:54:32,268 INFO L93 Difference]: Finished difference Result 1126 states and 1370 transitions. [2020-10-23 19:54:32,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-23 19:54:32,269 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 205 [2020-10-23 19:54:32,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:54:32,275 INFO L225 Difference]: With dead ends: 1126 [2020-10-23 19:54:32,275 INFO L226 Difference]: Without dead ends: 858 [2020-10-23 19:54:32,277 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=270, Invalid=722, Unknown=0, NotChecked=0, Total=992 [2020-10-23 19:54:32,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2020-10-23 19:54:32,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 609. [2020-10-23 19:54:32,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 609 states. [2020-10-23 19:54:32,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 661 transitions. [2020-10-23 19:54:32,574 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 661 transitions. Word has length 205 [2020-10-23 19:54:32,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:54:32,575 INFO L481 AbstractCegarLoop]: Abstraction has 609 states and 661 transitions. [2020-10-23 19:54:32,575 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 19:54:32,575 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 661 transitions. [2020-10-23 19:54:32,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-10-23 19:54:32,578 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:54:32,579 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:54:32,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:54:32,579 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:54:32,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:54:32,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1850872003, now seen corresponding path program 1 times [2020-10-23 19:54:32,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:54:32,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1348604259] [2020-10-23 19:54:32,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:54:32,584 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:54:32,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:33,043 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:54:33,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:54:33,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:33,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:54:33,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:33,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:54:33,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:33,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:54:33,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:33,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:54:33,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:33,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:54:33,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:33,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:54:33,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:33,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 19:54:33,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:33,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:54:33,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:33,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:33,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:33,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:33,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:54:33,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:33,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:54:33,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:33,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-10-23 19:54:33,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:33,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2020-10-23 19:54:33,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:33,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:54:33,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1348604259] [2020-10-23 19:54:33,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:54:33,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-23 19:54:33,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161112367] [2020-10-23 19:54:33,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-23 19:54:33,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:54:33,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-23 19:54:33,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-23 19:54:33,269 INFO L87 Difference]: Start difference. First operand 609 states and 661 transitions. Second operand 12 states. [2020-10-23 19:54:33,962 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:54:36,061 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:36,478 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:54:36,858 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:54:37,417 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:37,821 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:38,260 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:54:38,653 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:39,117 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:41,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:54:41,070 INFO L93 Difference]: Finished difference Result 1477 states and 1778 transitions. [2020-10-23 19:54:41,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-23 19:54:41,071 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 210 [2020-10-23 19:54:41,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:54:41,078 INFO L225 Difference]: With dead ends: 1477 [2020-10-23 19:54:41,079 INFO L226 Difference]: Without dead ends: 988 [2020-10-23 19:54:41,082 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=452, Invalid=1270, Unknown=0, NotChecked=0, Total=1722 [2020-10-23 19:54:41,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2020-10-23 19:54:41,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 607. [2020-10-23 19:54:41,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 607 states. [2020-10-23 19:54:41,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 657 transitions. [2020-10-23 19:54:41,375 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 657 transitions. Word has length 210 [2020-10-23 19:54:41,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:54:41,376 INFO L481 AbstractCegarLoop]: Abstraction has 607 states and 657 transitions. [2020-10-23 19:54:41,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-23 19:54:41,376 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 657 transitions. [2020-10-23 19:54:41,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-23 19:54:41,380 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:54:41,380 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:54:41,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 19:54:41,380 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:54:41,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:54:41,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1748690359, now seen corresponding path program 1 times [2020-10-23 19:54:41,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:54:41,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1919009717] [2020-10-23 19:54:41,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:54:41,385 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:54:41,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:41,763 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:54:41,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:54:41,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:41,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:54:41,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:41,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:54:41,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:41,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:54:41,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:41,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:54:41,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:41,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:54:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:41,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:54:41,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:41,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 19:54:41,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:41,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:54:41,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:41,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:41,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:41,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:41,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:41,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:54:41,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:41,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:54:41,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:41,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-23 19:54:41,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:41,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-23 19:54:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:42,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:54:42,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1919009717] [2020-10-23 19:54:42,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:54:42,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-23 19:54:42,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975568601] [2020-10-23 19:54:42,009 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-23 19:54:42,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:54:42,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-23 19:54:42,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-23 19:54:42,010 INFO L87 Difference]: Start difference. First operand 607 states and 657 transitions. Second operand 12 states. [2020-10-23 19:54:43,746 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:44,169 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 19:54:44,595 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-23 19:54:45,002 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:45,411 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:45,773 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:48,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:54:48,122 INFO L93 Difference]: Finished difference Result 1485 states and 1798 transitions. [2020-10-23 19:54:48,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-23 19:54:48,123 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 211 [2020-10-23 19:54:48,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:54:48,133 INFO L225 Difference]: With dead ends: 1485 [2020-10-23 19:54:48,133 INFO L226 Difference]: Without dead ends: 998 [2020-10-23 19:54:48,136 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=203, Invalid=499, Unknown=0, NotChecked=0, Total=702 [2020-10-23 19:54:48,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 998 states. [2020-10-23 19:54:48,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 998 to 623. [2020-10-23 19:54:48,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 623 states. [2020-10-23 19:54:48,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 673 transitions. [2020-10-23 19:54:48,398 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 673 transitions. Word has length 211 [2020-10-23 19:54:48,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:54:48,399 INFO L481 AbstractCegarLoop]: Abstraction has 623 states and 673 transitions. [2020-10-23 19:54:48,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-23 19:54:48,399 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 673 transitions. [2020-10-23 19:54:48,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-23 19:54:48,410 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:54:48,410 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:54:48,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 19:54:48,411 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:54:48,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:54:48,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1335058967, now seen corresponding path program 1 times [2020-10-23 19:54:48,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:54:48,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [481459741] [2020-10-23 19:54:48,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:54:48,416 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:54:48,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:48,807 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:54:48,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:54:48,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:48,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:54:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:48,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:54:48,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:48,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:54:48,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:48,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:54:48,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:48,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:54:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:48,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:54:48,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:48,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 19:54:48,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:48,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:54:48,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:48,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:48,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:48,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:48,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:54:48,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:49,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:54:49,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:49,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-23 19:54:49,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:49,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-23 19:54:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:49,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:54:49,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [481459741] [2020-10-23 19:54:49,072 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:54:49,072 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-23 19:54:49,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442351575] [2020-10-23 19:54:49,073 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-23 19:54:49,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:54:49,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-23 19:54:49,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2020-10-23 19:54:49,074 INFO L87 Difference]: Start difference. First operand 623 states and 673 transitions. Second operand 15 states. [2020-10-23 19:54:49,917 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:50,311 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 19:54:50,694 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:51,080 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:51,456 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:52,638 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:53,018 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:53,434 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:53,855 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:54,237 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:57,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:54:57,033 INFO L93 Difference]: Finished difference Result 1523 states and 1865 transitions. [2020-10-23 19:54:57,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-23 19:54:57,042 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 211 [2020-10-23 19:54:57,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:54:57,048 INFO L225 Difference]: With dead ends: 1523 [2020-10-23 19:54:57,049 INFO L226 Difference]: Without dead ends: 1020 [2020-10-23 19:54:57,051 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=278, Invalid=844, Unknown=0, NotChecked=0, Total=1122 [2020-10-23 19:54:57,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2020-10-23 19:54:57,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 635. [2020-10-23 19:54:57,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2020-10-23 19:54:57,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 685 transitions. [2020-10-23 19:54:57,477 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 685 transitions. Word has length 211 [2020-10-23 19:54:57,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:54:57,478 INFO L481 AbstractCegarLoop]: Abstraction has 635 states and 685 transitions. [2020-10-23 19:54:57,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-23 19:54:57,478 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 685 transitions. [2020-10-23 19:54:57,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-23 19:54:57,484 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:54:57,484 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:54:57,484 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 19:54:57,487 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:54:57,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:54:57,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1404577076, now seen corresponding path program 1 times [2020-10-23 19:54:57,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:54:57,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1811077159] [2020-10-23 19:54:57,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:54:57,492 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:54:57,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:57,928 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:54:57,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:54:57,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:57,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:54:57,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:57,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:54:57,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:57,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:54:57,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:57,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:54:57,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:58,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:54:58,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:58,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:54:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:58,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 19:54:58,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:58,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:54:58,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:58,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:58,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:58,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:58,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:58,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:54:58,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:58,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:54:58,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:58,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-23 19:54:58,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:58,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-23 19:54:58,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:58,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:54:58,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1811077159] [2020-10-23 19:54:58,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:54:58,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:54:58,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297702086] [2020-10-23 19:54:58,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:54:58,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:54:58,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:54:58,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:54:58,176 INFO L87 Difference]: Start difference. First operand 635 states and 685 transitions. Second operand 9 states. [2020-10-23 19:54:58,900 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:54:59,679 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:55:05,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:55:05,021 INFO L93 Difference]: Finished difference Result 2233 states and 2820 transitions. [2020-10-23 19:55:05,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-23 19:55:05,022 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 211 [2020-10-23 19:55:05,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:55:05,033 INFO L225 Difference]: With dead ends: 2233 [2020-10-23 19:55:05,033 INFO L226 Difference]: Without dead ends: 1718 [2020-10-23 19:55:05,036 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=281, Invalid=1051, Unknown=0, NotChecked=0, Total=1332 [2020-10-23 19:55:05,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2020-10-23 19:55:05,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 1073. [2020-10-23 19:55:05,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1073 states. [2020-10-23 19:55:05,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1073 states to 1073 states and 1191 transitions. [2020-10-23 19:55:05,504 INFO L78 Accepts]: Start accepts. Automaton has 1073 states and 1191 transitions. Word has length 211 [2020-10-23 19:55:05,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:55:05,504 INFO L481 AbstractCegarLoop]: Abstraction has 1073 states and 1191 transitions. [2020-10-23 19:55:05,504 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:55:05,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1073 states and 1191 transitions. [2020-10-23 19:55:05,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-10-23 19:55:05,507 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:55:05,507 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:55:05,507 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-23 19:55:05,507 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:55:05,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:55:05,508 INFO L82 PathProgramCache]: Analyzing trace with hash -932301322, now seen corresponding path program 1 times [2020-10-23 19:55:05,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:55:05,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [21554463] [2020-10-23 19:55:05,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:55:05,511 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:55:05,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:05,939 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:55:05,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:55:05,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:05,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:55:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:05,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:55:05,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:05,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:55:05,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:05,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:55:05,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:06,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:55:06,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:06,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:55:06,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:06,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 19:55:06,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:06,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 19:55:06,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:06,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-23 19:55:06,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:06,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:55:06,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:06,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:55:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:06,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:55:06,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:06,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:55:06,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:06,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-23 19:55:06,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:06,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2020-10-23 19:55:06,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:06,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:55:06,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [21554463] [2020-10-23 19:55:06,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:55:06,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:55:06,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764582687] [2020-10-23 19:55:06,196 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:55:06,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:55:06,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:55:06,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:55:06,197 INFO L87 Difference]: Start difference. First operand 1073 states and 1191 transitions. Second operand 9 states. [2020-10-23 19:55:06,977 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:55:12,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:55:12,649 INFO L93 Difference]: Finished difference Result 2696 states and 3450 transitions. [2020-10-23 19:55:12,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-23 19:55:12,650 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 216 [2020-10-23 19:55:12,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:55:12,668 INFO L225 Difference]: With dead ends: 2696 [2020-10-23 19:55:12,668 INFO L226 Difference]: Without dead ends: 2692 [2020-10-23 19:55:12,670 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=310, Invalid=1022, Unknown=0, NotChecked=0, Total=1332 [2020-10-23 19:55:12,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2692 states. [2020-10-23 19:55:13,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2692 to 1698. [2020-10-23 19:55:13,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1698 states. [2020-10-23 19:55:13,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1698 states to 1698 states and 1907 transitions. [2020-10-23 19:55:13,638 INFO L78 Accepts]: Start accepts. Automaton has 1698 states and 1907 transitions. Word has length 216 [2020-10-23 19:55:13,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:55:13,639 INFO L481 AbstractCegarLoop]: Abstraction has 1698 states and 1907 transitions. [2020-10-23 19:55:13,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:55:13,639 INFO L276 IsEmpty]: Start isEmpty. Operand 1698 states and 1907 transitions. [2020-10-23 19:55:13,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-10-23 19:55:13,645 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:55:13,647 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:55:13,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-23 19:55:13,647 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:55:13,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:55:13,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1218213286, now seen corresponding path program 1 times [2020-10-23 19:55:13,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:55:13,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1123691365] [2020-10-23 19:55:13,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:55:14,122 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 89 [2020-10-23 19:55:14,293 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-23 19:55:14,668 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 81 [2020-10-23 19:55:14,786 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-23 19:55:15,184 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 89 [2020-10-23 19:55:15,323 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-23 19:55:15,684 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 79 [2020-10-23 19:55:15,846 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-10-23 19:55:16,195 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 81 [2020-10-23 19:55:16,301 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-23 19:55:16,625 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 79 [2020-10-23 19:55:16,758 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-10-23 19:55:17,176 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 88 [2020-10-23 19:55:17,312 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-23 19:55:17,722 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 88 [2020-10-23 19:55:17,878 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-23 19:55:18,284 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 88 [2020-10-23 19:55:18,439 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-23 19:55:18,881 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 89 [2020-10-23 19:55:19,038 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-23 19:55:19,424 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 81 [2020-10-23 19:55:19,551 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-23 19:55:19,926 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 80 [2020-10-23 19:55:20,038 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-23 19:55:20,355 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 79 [2020-10-23 19:55:20,466 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-10-23 19:55:20,819 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 78 [2020-10-23 19:55:20,934 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-10-23 19:55:21,679 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 183 [2020-10-23 19:55:22,413 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 183 [2020-10-23 19:55:23,147 WARN L193 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 183 [2020-10-23 19:55:23,896 WARN L193 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 183 [2020-10-23 19:55:24,636 WARN L193 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 183 [2020-10-23 19:55:25,337 WARN L193 SmtUtils]: Spent 657.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 183 [2020-10-23 19:55:26,073 WARN L193 SmtUtils]: Spent 704.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 183 [2020-10-23 19:55:26,757 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 183 [2020-10-23 19:55:26,760 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:55:27,429 WARN L193 SmtUtils]: Spent 649.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 182 [2020-10-23 19:55:28,108 WARN L193 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 182 [2020-10-23 19:55:28,802 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 182 [2020-10-23 19:55:29,528 WARN L193 SmtUtils]: Spent 703.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 182 [2020-10-23 19:55:29,532 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:55:30,245 WARN L193 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 182 [2020-10-23 19:55:30,933 WARN L193 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 182 [2020-10-23 19:55:31,658 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 182 [2020-10-23 19:55:32,409 WARN L193 SmtUtils]: Spent 729.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 182 [2020-10-23 19:55:33,128 WARN L193 SmtUtils]: Spent 694.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 182 [2020-10-23 19:55:33,873 WARN L193 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 182 [2020-10-23 19:55:34,627 WARN L193 SmtUtils]: Spent 727.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 182 [2020-10-23 19:55:35,381 WARN L193 SmtUtils]: Spent 730.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 182 [2020-10-23 19:55:35,384 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:55:36,157 WARN L193 SmtUtils]: Spent 753.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 184 [2020-10-23 19:55:36,903 WARN L193 SmtUtils]: Spent 710.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 184 [2020-10-23 19:55:37,636 WARN L193 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 184 [2020-10-23 19:55:38,382 WARN L193 SmtUtils]: Spent 725.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 184 [2020-10-23 19:55:38,386 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:55:39,111 WARN L193 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 182 [2020-10-23 19:55:39,860 WARN L193 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 182 [2020-10-23 19:55:40,576 WARN L193 SmtUtils]: Spent 681.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 182 [2020-10-23 19:55:41,305 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 182 [2020-10-23 19:55:41,308 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:55:42,027 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 183 [2020-10-23 19:55:42,782 WARN L193 SmtUtils]: Spent 725.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 183 [2020-10-23 19:55:43,518 WARN L193 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 183 [2020-10-23 19:55:44,266 WARN L193 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 183 [2020-10-23 19:55:44,270 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:55:44,989 WARN L193 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 178 [2020-10-23 19:55:45,734 WARN L193 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 179 [2020-10-23 19:55:46,493 WARN L193 SmtUtils]: Spent 728.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 179 [2020-10-23 19:55:47,219 WARN L193 SmtUtils]: Spent 697.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 179 [2020-10-23 19:55:47,905 WARN L193 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 179 [2020-10-23 19:55:48,584 WARN L193 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 179 [2020-10-23 19:55:49,300 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 179 [2020-10-23 19:55:50,015 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 178 [2020-10-23 19:55:50,019 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:55:50,729 WARN L193 SmtUtils]: Spent 681.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 179 [2020-10-23 19:55:51,437 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 178 [2020-10-23 19:55:52,151 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 179 [2020-10-23 19:55:52,883 WARN L193 SmtUtils]: Spent 712.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 179 [2020-10-23 19:55:53,624 WARN L193 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 179 [2020-10-23 19:55:54,341 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 179 [2020-10-23 19:55:55,054 WARN L193 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 179 [2020-10-23 19:55:55,758 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 178 [2020-10-23 19:55:55,761 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:55:56,461 WARN L193 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 178 [2020-10-23 19:55:57,155 WARN L193 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 179 [2020-10-23 19:55:57,837 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 179 [2020-10-23 19:55:58,532 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 179 [2020-10-23 19:55:59,231 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 179 [2020-10-23 19:55:59,996 WARN L193 SmtUtils]: Spent 728.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 178 [2020-10-23 19:56:00,701 WARN L193 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 179 [2020-10-23 19:56:01,457 WARN L193 SmtUtils]: Spent 724.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 179 [2020-10-23 19:56:01,460 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:56:02,224 WARN L193 SmtUtils]: Spent 745.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 183 [2020-10-23 19:56:03,024 WARN L193 SmtUtils]: Spent 767.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 183 [2020-10-23 19:56:03,790 WARN L193 SmtUtils]: Spent 744.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 183 [2020-10-23 19:56:04,562 WARN L193 SmtUtils]: Spent 741.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 183 [2020-10-23 19:56:05,329 WARN L193 SmtUtils]: Spent 741.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 183 [2020-10-23 19:56:06,086 WARN L193 SmtUtils]: Spent 730.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 183 [2020-10-23 19:56:06,872 WARN L193 SmtUtils]: Spent 764.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 183 [2020-10-23 19:56:07,636 WARN L193 SmtUtils]: Spent 742.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 183 [2020-10-23 19:56:07,640 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:56:08,377 WARN L193 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 183 [2020-10-23 19:56:09,116 WARN L193 SmtUtils]: Spent 716.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 183 [2020-10-23 19:56:09,882 WARN L193 SmtUtils]: Spent 740.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 183 [2020-10-23 19:56:10,613 WARN L193 SmtUtils]: Spent 709.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 183 [2020-10-23 19:56:10,615 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:56:11,319 WARN L193 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 179 [2020-10-23 19:56:12,039 WARN L193 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 179 [2020-10-23 19:56:12,781 WARN L193 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 180 [2020-10-23 19:56:13,515 WARN L193 SmtUtils]: Spent 714.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 180 [2020-10-23 19:56:13,518 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:56:14,248 WARN L193 SmtUtils]: Spent 710.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 184 [2020-10-23 19:56:14,964 WARN L193 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 184 [2020-10-23 19:56:15,656 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 184 [2020-10-23 19:56:16,383 WARN L193 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 184 [2020-10-23 19:56:16,386 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:56:17,102 WARN L193 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 180 [2020-10-23 19:56:17,825 WARN L193 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 179 [2020-10-23 19:56:18,542 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 180 [2020-10-23 19:56:19,279 WARN L193 SmtUtils]: Spent 717.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 179 [2020-10-23 19:56:19,283 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:56:19,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:56:19,633 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:56:19,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:56:19,986 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:56:20,206 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 19:56:20,206 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 19:56:20,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-23 19:56:20,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 07:56:20 BoogieIcfgContainer [2020-10-23 19:56:20,268 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 19:56:20,270 INFO L168 Benchmark]: Toolchain (without parser) took 136652.49 ms. Allocated memory was 152.0 MB in the beginning and 950.0 MB in the end (delta: 798.0 MB). Free memory was 127.5 MB in the beginning and 427.7 MB in the end (delta: -300.2 MB). Peak memory consumption was 498.7 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:20,271 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 152.0 MB. Free memory is still 126.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 19:56:20,271 INFO L168 Benchmark]: CACSL2BoogieTranslator took 675.90 ms. Allocated memory is still 152.0 MB. Free memory was 126.9 MB in the beginning and 105.3 MB in the end (delta: 21.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:20,272 INFO L168 Benchmark]: Boogie Preprocessor took 112.85 ms. Allocated memory is still 152.0 MB. Free memory was 105.3 MB in the beginning and 101.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:20,272 INFO L168 Benchmark]: RCFGBuilder took 1637.26 ms. Allocated memory is still 152.0 MB. Free memory was 101.1 MB in the beginning and 90.4 MB in the end (delta: 10.8 MB). Peak memory consumption was 35.5 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:20,272 INFO L168 Benchmark]: TraceAbstraction took 134204.37 ms. Allocated memory was 152.0 MB in the beginning and 950.0 MB in the end (delta: 798.0 MB). Free memory was 89.8 MB in the beginning and 427.7 MB in the end (delta: -337.9 MB). Peak memory consumption was 460.1 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:20,276 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 152.0 MB. Free memory is still 126.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 675.90 ms. Allocated memory is still 152.0 MB. Free memory was 126.9 MB in the beginning and 105.3 MB in the end (delta: 21.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 112.85 ms. Allocated memory is still 152.0 MB. Free memory was 105.3 MB in the beginning and 101.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1637.26 ms. Allocated memory is still 152.0 MB. Free memory was 101.1 MB in the beginning and 90.4 MB in the end (delta: 10.8 MB). Peak memory consumption was 35.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 134204.37 ms. Allocated memory was 152.0 MB in the beginning and 950.0 MB in the end (delta: 798.0 MB). Free memory was 89.8 MB in the beginning and 427.7 MB in the end (delta: -337.9 MB). Peak memory consumption was 460.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L80] int cleanupTimeShifts = 4; [L186] int methAndRunningLastTime ; [L230] int waterLevel = 1; [L231] int methaneLevelCritical = 0; [L336] int pumpRunning = 0; [L337] int systemActive = 1; [L777] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L160] int retValue_acc ; [L161] int tmp ; [L165] FCALL select_helpers() [L166] FCALL select_features() [L167] CALL, EXPR valid_product() [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L167] RET, EXPR valid_product() [L167] tmp = valid_product() [L169] COND TRUE \read(tmp) [L171] FCALL setup() [L172] CALL runTest() [L153] CALL __utac_acc__Specification2_spec__1() [L191] methAndRunningLastTime = 0 [L153] RET __utac_acc__Specification2_spec__1() [L154] CALL test() [L542] int splverifierCounter ; [L543] int tmp ; [L544] int tmp___0 ; [L545] int tmp___1 ; [L546] int tmp___2 ; [L549] splverifierCounter = 0 [L551] COND TRUE 1 [L553] COND TRUE splverifierCounter < 4 [L559] tmp = __VERIFIER_nondet_int() [L561] COND TRUE \read(tmp) [L563] CALL waterRise() [L248] COND TRUE waterLevel < 2 [L249] waterLevel = waterLevel + 1 [L563] RET waterRise() [L569] tmp___0 = __VERIFIER_nondet_int() [L571] COND TRUE \read(tmp___0) [L573] CALL changeMethaneLevel() [L260] COND FALSE !(\read(methaneLevelCritical)) [L263] methaneLevelCritical = 1 [L573] RET changeMethaneLevel() [L579] tmp___2 = __VERIFIER_nondet_int() [L581] COND TRUE \read(tmp___2) [L583] CALL startSystem() [L536] systemActive = 1 [L583] RET startSystem() [L596] CALL timeShift() [L343] COND FALSE !(\read(pumpRunning)) [L350] COND TRUE \read(systemActive) [L352] CALL processEnvironment() [L398] int tmp ; [L401] COND FALSE !(\read(pumpRunning)) [L416] CALL processEnvironment__wrappee__highWaterSensor() [L372] int tmp ; [L375] COND TRUE ! pumpRunning [L377] CALL, EXPR isHighWaterLevel() [L495] int retValue_acc ; [L496] int tmp ; [L497] int tmp___0 ; [L501] CALL, EXPR isHighWaterSensorDry() [L310] int retValue_acc ; [L313] COND FALSE !(waterLevel < 2) [L317] retValue_acc = 0 [L318] return (retValue_acc); [L501] RET, EXPR isHighWaterSensorDry() [L501] tmp = isHighWaterSensorDry() [L503] COND FALSE !(\read(tmp)) [L506] tmp___0 = 1 [L508] retValue_acc = tmp___0 [L509] return (retValue_acc); [L377] RET, EXPR isHighWaterLevel() [L377] tmp = isHighWaterLevel() [L379] COND TRUE \read(tmp) [L381] CALL activatePump() [L426] pumpRunning = 1 [L381] RET activatePump() [L416] RET processEnvironment__wrappee__highWaterSensor() [L352] RET processEnvironment() [L358] CALL __utac_acc__Specification2_spec__2() [L196] int tmp ; [L197] int tmp___0 ; [L201] CALL, EXPR isMethaneLevelCritical() [L269] int retValue_acc ; [L272] retValue_acc = methaneLevelCritical [L273] return (retValue_acc); [L201] RET, EXPR isMethaneLevelCritical() [L201] tmp = isMethaneLevelCritical() [L203] COND TRUE \read(tmp) [L205] CALL, EXPR isPumpRunning() [L450] int retValue_acc ; [L453] retValue_acc = pumpRunning [L454] return (retValue_acc); [L205] RET, EXPR isPumpRunning() [L205] tmp___0 = isPumpRunning() [L207] COND TRUE \read(tmp___0) [L208] COND FALSE !(\read(methAndRunningLastTime)) [L213] methAndRunningLastTime = 1 [L358] RET __utac_acc__Specification2_spec__2() [L596] RET timeShift() [L551] COND TRUE 1 [L553] COND TRUE splverifierCounter < 4 [L559] tmp = __VERIFIER_nondet_int() [L561] COND FALSE !(\read(tmp)) [L569] tmp___0 = __VERIFIER_nondet_int() [L571] COND FALSE !(\read(tmp___0)) [L579] tmp___2 = __VERIFIER_nondet_int() [L581] COND TRUE \read(tmp___2) [L583] CALL startSystem() [L536] systemActive = 1 [L583] RET startSystem() [L596] CALL timeShift() [L343] COND FALSE !(\read(pumpRunning)) [L350] COND TRUE \read(systemActive) [L352] CALL processEnvironment() [L398] int tmp ; [L401] COND FALSE !(\read(pumpRunning)) [L416] CALL processEnvironment__wrappee__highWaterSensor() [L372] int tmp ; [L375] COND TRUE ! pumpRunning [L377] CALL, EXPR isHighWaterLevel() [L495] int retValue_acc ; [L496] int tmp ; [L497] int tmp___0 ; [L501] CALL, EXPR isHighWaterSensorDry() [L310] int retValue_acc ; [L313] COND FALSE !(waterLevel < 2) [L317] retValue_acc = 0 [L318] return (retValue_acc); [L501] RET, EXPR isHighWaterSensorDry() [L501] tmp = isHighWaterSensorDry() [L503] COND FALSE !(\read(tmp)) [L506] tmp___0 = 1 [L508] retValue_acc = tmp___0 [L509] return (retValue_acc); [L377] RET, EXPR isHighWaterLevel() [L377] tmp = isHighWaterLevel() [L379] COND TRUE \read(tmp) [L381] CALL activatePump() [L426] pumpRunning = 1 [L381] RET activatePump() [L416] RET processEnvironment__wrappee__highWaterSensor() [L352] RET processEnvironment() [L358] CALL __utac_acc__Specification2_spec__2() [L196] int tmp ; [L197] int tmp___0 ; [L201] CALL, EXPR isMethaneLevelCritical() [L269] int retValue_acc ; [L272] retValue_acc = methaneLevelCritical [L273] return (retValue_acc); [L201] RET, EXPR isMethaneLevelCritical() [L201] tmp = isMethaneLevelCritical() [L203] COND TRUE \read(tmp) [L205] CALL, EXPR isPumpRunning() [L450] int retValue_acc ; [L453] retValue_acc = pumpRunning [L454] return (retValue_acc); [L205] RET, EXPR isPumpRunning() [L205] tmp___0 = isPumpRunning() [L207] COND TRUE \read(tmp___0) [L208] COND TRUE \read(methAndRunningLastTime) [L210] CALL __automaton_fail() [L978] CALL reach_error() [L3] __assert_fail("0", "minepump_spec2_product50.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 663 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 134.0s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 56.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2657 SDtfs, 9634 SDslu, 5198 SDs, 0 SdLazy, 11273 SolverSat, 2887 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 26.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 571 GetRequests, 324 SyntacticMatches, 3 SemanticMatches, 244 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1810 ImplicationChecksByTransitivity, 24.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1698occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 3340 StatesRemovedByMinimization, 10 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...